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cpp-httplib/test/gtest/gtest.h
Gregor Jasny 6b08babbd2 Use googletest 1.11.0 (#1000) 
* Update googletest to version 1.11.0

* Fix test warnings
2021-07-17 13:21:03 -04:00

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// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file defines the public API for Google Test. It should be
// included by any test program that uses Google Test.
//
// IMPORTANT NOTE: Due to limitation of the C++ language, we have to
// leave some internal implementation details in this header file.
// They are clearly marked by comments like this:
//
// // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
//
// Such code is NOT meant to be used by a user directly, and is subject
// to CHANGE WITHOUT NOTICE. Therefore DO NOT DEPEND ON IT in a user
// program!
//
// Acknowledgment: Google Test borrowed the idea of automatic test
// registration from Barthelemy Dagenais' (barthelemy@prologique.com)
// easyUnit framework.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_H_
#include <cstddef>
#include <limits>
#include <memory>
#include <ostream>
#include <type_traits>
#include <vector>
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file declares functions and macros used internally by
// Google Test. They are subject to change without notice.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Low-level types and utilities for porting Google Test to various
// platforms. All macros ending with _ and symbols defined in an
// internal namespace are subject to change without notice. Code
// outside Google Test MUST NOT USE THEM DIRECTLY. Macros that don't
// end with _ are part of Google Test's public API and can be used by
// code outside Google Test.
//
// This file is fundamental to Google Test. All other Google Test source
// files are expected to #include this. Therefore, it cannot #include
// any other Google Test header.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
// Environment-describing macros
// -----------------------------
//
// Google Test can be used in many different environments. Macros in
// this section tell Google Test what kind of environment it is being
// used in, such that Google Test can provide environment-specific
// features and implementations.
//
// Google Test tries to automatically detect the properties of its
// environment, so users usually don't need to worry about these
// macros. However, the automatic detection is not perfect.
// Sometimes it's necessary for a user to define some of the following
// macros in the build script to override Google Test's decisions.
//
// If the user doesn't define a macro in the list, Google Test will
// provide a default definition. After this header is #included, all
// macros in this list will be defined to either 1 or 0.
//
// Notes to maintainers:
// - Each macro here is a user-tweakable knob; do not grow the list
// lightly.
// - Use #if to key off these macros. Don't use #ifdef or "#if
// defined(...)", which will not work as these macros are ALWAYS
// defined.
//
// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2)
// is/isn't available.
// GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions
// are enabled.
// GTEST_HAS_POSIX_RE - Define it to 1/0 to indicate that POSIX regular
// expressions are/aren't available.
// GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h>
// is/isn't available.
// GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't
// enabled.
// GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that
// std::wstring does/doesn't work (Google Test can
// be used where std::wstring is unavailable).
// GTEST_HAS_SEH - Define it to 1/0 to indicate whether the
// compiler supports Microsoft's "Structured
// Exception Handling".
// GTEST_HAS_STREAM_REDIRECTION
// - Define it to 1/0 to indicate whether the
// platform supports I/O stream redirection using
// dup() and dup2().
// GTEST_LINKED_AS_SHARED_LIBRARY
// - Define to 1 when compiling tests that use
// Google Test as a shared library (known as
// DLL on Windows).
// GTEST_CREATE_SHARED_LIBRARY
// - Define to 1 when compiling Google Test itself
// as a shared library.
// GTEST_DEFAULT_DEATH_TEST_STYLE
// - The default value of --gtest_death_test_style.
// The legacy default has been "fast" in the open
// source version since 2008. The recommended value
// is "threadsafe", and can be set in
// custom/gtest-port.h.
// Platform-indicating macros
// --------------------------
//
// Macros indicating the platform on which Google Test is being used
// (a macro is defined to 1 if compiled on the given platform;
// otherwise UNDEFINED -- it's never defined to 0.). Google Test
// defines these macros automatically. Code outside Google Test MUST
// NOT define them.
//
// GTEST_OS_AIX - IBM AIX
// GTEST_OS_CYGWIN - Cygwin
// GTEST_OS_DRAGONFLY - DragonFlyBSD
// GTEST_OS_FREEBSD - FreeBSD
// GTEST_OS_FUCHSIA - Fuchsia
// GTEST_OS_GNU_KFREEBSD - GNU/kFreeBSD
// GTEST_OS_HAIKU - Haiku
// GTEST_OS_HPUX - HP-UX
// GTEST_OS_LINUX - Linux
// GTEST_OS_LINUX_ANDROID - Google Android
// GTEST_OS_MAC - Mac OS X
// GTEST_OS_IOS - iOS
// GTEST_OS_NACL - Google Native Client (NaCl)
// GTEST_OS_NETBSD - NetBSD
// GTEST_OS_OPENBSD - OpenBSD
// GTEST_OS_OS2 - OS/2
// GTEST_OS_QNX - QNX
// GTEST_OS_SOLARIS - Sun Solaris
// GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile)
// GTEST_OS_WINDOWS_DESKTOP - Windows Desktop
// GTEST_OS_WINDOWS_MINGW - MinGW
// GTEST_OS_WINDOWS_MOBILE - Windows Mobile
// GTEST_OS_WINDOWS_PHONE - Windows Phone
// GTEST_OS_WINDOWS_RT - Windows Store App/WinRT
// GTEST_OS_ZOS - z/OS
//
// Among the platforms, Cygwin, Linux, Mac OS X, and Windows have the
// most stable support. Since core members of the Google Test project
// don't have access to other platforms, support for them may be less
// stable. If you notice any problems on your platform, please notify
// googletestframework@googlegroups.com (patches for fixing them are
// even more welcome!).
//
// It is possible that none of the GTEST_OS_* macros are defined.
// Feature-indicating macros
// -------------------------
//
// Macros indicating which Google Test features are available (a macro
// is defined to 1 if the corresponding feature is supported;
// otherwise UNDEFINED -- it's never defined to 0.). Google Test
// defines these macros automatically. Code outside Google Test MUST
// NOT define them.
//
// These macros are public so that portable tests can be written.
// Such tests typically surround code using a feature with an #if
// which controls that code. For example:
//
// #if GTEST_HAS_DEATH_TEST
// EXPECT_DEATH(DoSomethingDeadly());
// #endif
//
// GTEST_HAS_DEATH_TEST - death tests
// GTEST_HAS_TYPED_TEST - typed tests
// GTEST_HAS_TYPED_TEST_P - type-parameterized tests
// GTEST_IS_THREADSAFE - Google Test is thread-safe.
// GOOGLETEST_CM0007 DO NOT DELETE
// GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with
// GTEST_HAS_POSIX_RE (see above) which users can
// define themselves.
// GTEST_USES_SIMPLE_RE - our own simple regex is used;
// the above RE\b(s) are mutually exclusive.
// Misc public macros
// ------------------
//
// GTEST_FLAG(flag_name) - references the variable corresponding to
// the given Google Test flag.
// Internal utilities
// ------------------
//
// The following macros and utilities are for Google Test's INTERNAL
// use only. Code outside Google Test MUST NOT USE THEM DIRECTLY.
//
// Macros for basic C++ coding:
// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a
// variable don't have to be used.
// GTEST_DISALLOW_ASSIGN_ - disables copy operator=.
// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
// GTEST_DISALLOW_MOVE_ASSIGN_ - disables move operator=.
// GTEST_DISALLOW_MOVE_AND_ASSIGN_ - disables move ctor and operator=.
// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used.
// GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is
// suppressed (constant conditional).
// GTEST_INTENTIONAL_CONST_COND_POP_ - finish code section where MSVC C4127
// is suppressed.
// GTEST_INTERNAL_HAS_ANY - for enabling UniversalPrinter<std::any> or
// UniversalPrinter<absl::any> specializations.
// GTEST_INTERNAL_HAS_OPTIONAL - for enabling UniversalPrinter<std::optional>
// or
// UniversalPrinter<absl::optional>
// specializations.
// GTEST_INTERNAL_HAS_STRING_VIEW - for enabling Matcher<std::string_view> or
// Matcher<absl::string_view>
// specializations.
// GTEST_INTERNAL_HAS_VARIANT - for enabling UniversalPrinter<std::variant> or
// UniversalPrinter<absl::variant>
// specializations.
//
// Synchronization:
// Mutex, MutexLock, ThreadLocal, GetThreadCount()
// - synchronization primitives.
//
// Regular expressions:
// RE - a simple regular expression class using the POSIX
// Extended Regular Expression syntax on UNIX-like platforms
// GOOGLETEST_CM0008 DO NOT DELETE
// or a reduced regular exception syntax on other
// platforms, including Windows.
// Logging:
// GTEST_LOG_() - logs messages at the specified severity level.
// LogToStderr() - directs all log messages to stderr.
// FlushInfoLog() - flushes informational log messages.
//
// Stdout and stderr capturing:
// CaptureStdout() - starts capturing stdout.
// GetCapturedStdout() - stops capturing stdout and returns the captured
// string.
// CaptureStderr() - starts capturing stderr.
// GetCapturedStderr() - stops capturing stderr and returns the captured
// string.
//
// Integer types:
// TypeWithSize - maps an integer to a int type.
// TimeInMillis - integers of known sizes.
// BiggestInt - the biggest signed integer type.
//
// Command-line utilities:
// GTEST_DECLARE_*() - declares a flag.
// GTEST_DEFINE_*() - defines a flag.
// GetInjectableArgvs() - returns the command line as a vector of strings.
//
// Environment variable utilities:
// GetEnv() - gets the value of an environment variable.
// BoolFromGTestEnv() - parses a bool environment variable.
// Int32FromGTestEnv() - parses an int32_t environment variable.
// StringFromGTestEnv() - parses a string environment variable.
//
// Deprecation warnings:
// GTEST_INTERNAL_DEPRECATED(message) - attribute marking a function as
// deprecated; calling a marked function
// should generate a compiler warning
#include <ctype.h> // for isspace, etc
#include <stddef.h> // for ptrdiff_t
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cerrno>
#include <cstdint>
#include <limits>
#include <type_traits>
#ifndef _WIN32_WCE
# include <sys/types.h>
# include <sys/stat.h>
#endif // !_WIN32_WCE
#if defined __APPLE__
# include <AvailabilityMacros.h>
# include <TargetConditionals.h>
#endif
#include <iostream> // NOLINT
#include <locale>
#include <memory>
#include <string> // NOLINT
#include <tuple>
#include <vector> // NOLINT
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Injection point for custom user configurations. See README for details
//
// ** Custom implementation starts here **
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file defines the GTEST_OS_* macro.
// It is separate from gtest-port.h so that custom/gtest-port.h can include it.
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
// Determines the platform on which Google Test is compiled.
#ifdef __CYGWIN__
# define GTEST_OS_CYGWIN 1
# elif defined(__MINGW__) || defined(__MINGW32__) || defined(__MINGW64__)
# define GTEST_OS_WINDOWS_MINGW 1
# define GTEST_OS_WINDOWS 1
#elif defined _WIN32
# define GTEST_OS_WINDOWS 1
# ifdef _WIN32_WCE
# define GTEST_OS_WINDOWS_MOBILE 1
# elif defined(WINAPI_FAMILY)
# include <winapifamily.h>
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# define GTEST_OS_WINDOWS_DESKTOP 1
# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_PHONE_APP)
# define GTEST_OS_WINDOWS_PHONE 1
# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
# define GTEST_OS_WINDOWS_RT 1
# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_TV_TITLE)
# define GTEST_OS_WINDOWS_PHONE 1
# define GTEST_OS_WINDOWS_TV_TITLE 1
# else
// WINAPI_FAMILY defined but no known partition matched.
// Default to desktop.
# define GTEST_OS_WINDOWS_DESKTOP 1
# endif
# else
# define GTEST_OS_WINDOWS_DESKTOP 1
# endif // _WIN32_WCE
#elif defined __OS2__
# define GTEST_OS_OS2 1
#elif defined __APPLE__
# define GTEST_OS_MAC 1
# include <TargetConditionals.h>
# if TARGET_OS_IPHONE
# define GTEST_OS_IOS 1
# endif
#elif defined __DragonFly__
# define GTEST_OS_DRAGONFLY 1
#elif defined __FreeBSD__
# define GTEST_OS_FREEBSD 1
#elif defined __Fuchsia__
# define GTEST_OS_FUCHSIA 1
#elif defined(__GLIBC__) && defined(__FreeBSD_kernel__)
# define GTEST_OS_GNU_KFREEBSD 1
#elif defined __linux__
# define GTEST_OS_LINUX 1
# if defined __ANDROID__
# define GTEST_OS_LINUX_ANDROID 1
# endif
#elif defined __MVS__
# define GTEST_OS_ZOS 1
#elif defined(__sun) && defined(__SVR4)
# define GTEST_OS_SOLARIS 1
#elif defined(_AIX)
# define GTEST_OS_AIX 1
#elif defined(__hpux)
# define GTEST_OS_HPUX 1
#elif defined __native_client__
# define GTEST_OS_NACL 1
#elif defined __NetBSD__
# define GTEST_OS_NETBSD 1
#elif defined __OpenBSD__
# define GTEST_OS_OPENBSD 1
#elif defined __QNX__
# define GTEST_OS_QNX 1
#elif defined(__HAIKU__)
#define GTEST_OS_HAIKU 1
#elif defined ESP8266
#define GTEST_OS_ESP8266 1
#elif defined ESP32
#define GTEST_OS_ESP32 1
#elif defined(__XTENSA__)
#define GTEST_OS_XTENSA 1
#endif // __CYGWIN__
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
#if !defined(GTEST_DEV_EMAIL_)
# define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
# define GTEST_FLAG_PREFIX_ "gtest_"
# define GTEST_FLAG_PREFIX_DASH_ "gtest-"
# define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
# define GTEST_NAME_ "Google Test"
# define GTEST_PROJECT_URL_ "https://github.com/google/googletest/"
#endif // !defined(GTEST_DEV_EMAIL_)
#if !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
# define GTEST_INIT_GOOGLE_TEST_NAME_ "testing::InitGoogleTest"
#endif // !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
// Determines the version of gcc that is used to compile this.
#ifdef __GNUC__
// 40302 means version 4.3.2.
# define GTEST_GCC_VER_ \
(__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
#endif // __GNUC__
// Macros for disabling Microsoft Visual C++ warnings.
//
// GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385)
// /* code that triggers warnings C4800 and C4385 */
// GTEST_DISABLE_MSC_WARNINGS_POP_()
#if defined(_MSC_VER)
# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \
__pragma(warning(push)) \
__pragma(warning(disable: warnings))
# define GTEST_DISABLE_MSC_WARNINGS_POP_() \
__pragma(warning(pop))
#else
// Not all compilers are MSVC
# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings)
# define GTEST_DISABLE_MSC_WARNINGS_POP_()
#endif
// Clang on Windows does not understand MSVC's pragma warning.
// We need clang-specific way to disable function deprecation warning.
#ifdef __clang__
# define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \
_Pragma("clang diagnostic ignored \"-Wdeprecated-implementations\"")
#define GTEST_DISABLE_MSC_DEPRECATED_POP_() \
_Pragma("clang diagnostic pop")
#else
# define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996)
# define GTEST_DISABLE_MSC_DEPRECATED_POP_() \
GTEST_DISABLE_MSC_WARNINGS_POP_()
#endif
// Brings in definitions for functions used in the testing::internal::posix
// namespace (read, write, close, chdir, isatty, stat). We do not currently
// use them on Windows Mobile.
#if GTEST_OS_WINDOWS
# if !GTEST_OS_WINDOWS_MOBILE
# include <direct.h>
# include <io.h>
# endif
// In order to avoid having to include <windows.h>, use forward declaration
#if GTEST_OS_WINDOWS_MINGW && !defined(__MINGW64_VERSION_MAJOR)
// MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two
// separate (equivalent) structs, instead of using typedef
typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION;
#else
// Assume CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
// This assumption is verified by
// WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
#endif
#elif GTEST_OS_XTENSA
#include <unistd.h>
// Xtensa toolchains define strcasecmp in the string.h header instead of
// strings.h. string.h is already included.
#else
// This assumes that non-Windows OSes provide unistd.h. For OSes where this
// is not the case, we need to include headers that provide the functions
// mentioned above.
# include <unistd.h>
# include <strings.h>
#endif // GTEST_OS_WINDOWS
#if GTEST_OS_LINUX_ANDROID
// Used to define __ANDROID_API__ matching the target NDK API level.
# include <android/api-level.h> // NOLINT
#endif
// Defines this to true if and only if Google Test can use POSIX regular
// expressions.
#ifndef GTEST_HAS_POSIX_RE
# if GTEST_OS_LINUX_ANDROID
// On Android, <regex.h> is only available starting with Gingerbread.
# define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9)
# else
#define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS && !GTEST_OS_XTENSA)
# endif
#endif
#if GTEST_USES_PCRE
// The appropriate headers have already been included.
#elif GTEST_HAS_POSIX_RE
// On some platforms, <regex.h> needs someone to define size_t, and
// won't compile otherwise. We can #include it here as we already
// included <stdlib.h>, which is guaranteed to define size_t through
// <stddef.h>.
# include <regex.h> // NOLINT
# define GTEST_USES_POSIX_RE 1
#elif GTEST_OS_WINDOWS
// <regex.h> is not available on Windows. Use our own simple regex
// implementation instead.
# define GTEST_USES_SIMPLE_RE 1
#else
// <regex.h> may not be available on this platform. Use our own
// simple regex implementation instead.
# define GTEST_USES_SIMPLE_RE 1
#endif // GTEST_USES_PCRE
#ifndef GTEST_HAS_EXCEPTIONS
// The user didn't tell us whether exceptions are enabled, so we need
// to figure it out.
# if defined(_MSC_VER) && defined(_CPPUNWIND)
// MSVC defines _CPPUNWIND to 1 if and only if exceptions are enabled.
# define GTEST_HAS_EXCEPTIONS 1
# elif defined(__BORLANDC__)
// C++Builder's implementation of the STL uses the _HAS_EXCEPTIONS
// macro to enable exceptions, so we'll do the same.
// Assumes that exceptions are enabled by default.
# ifndef _HAS_EXCEPTIONS
# define _HAS_EXCEPTIONS 1
# endif // _HAS_EXCEPTIONS
# define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
# elif defined(__clang__)
// clang defines __EXCEPTIONS if and only if exceptions are enabled before clang
// 220714, but if and only if cleanups are enabled after that. In Obj-C++ files,
// there can be cleanups for ObjC exceptions which also need cleanups, even if
// C++ exceptions are disabled. clang has __has_feature(cxx_exceptions) which
// checks for C++ exceptions starting at clang r206352, but which checked for
// cleanups prior to that. To reliably check for C++ exception availability with
// clang, check for
// __EXCEPTIONS && __has_feature(cxx_exceptions).
# define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions))
# elif defined(__GNUC__) && __EXCEPTIONS
// gcc defines __EXCEPTIONS to 1 if and only if exceptions are enabled.
# define GTEST_HAS_EXCEPTIONS 1
# elif defined(__SUNPRO_CC)
// Sun Pro CC supports exceptions. However, there is no compile-time way of
// detecting whether they are enabled or not. Therefore, we assume that
// they are enabled unless the user tells us otherwise.
# define GTEST_HAS_EXCEPTIONS 1
# elif defined(__IBMCPP__) && __EXCEPTIONS
// xlC defines __EXCEPTIONS to 1 if and only if exceptions are enabled.
# define GTEST_HAS_EXCEPTIONS 1
# elif defined(__HP_aCC)
// Exception handling is in effect by default in HP aCC compiler. It has to
// be turned of by +noeh compiler option if desired.
# define GTEST_HAS_EXCEPTIONS 1
# else
// For other compilers, we assume exceptions are disabled to be
// conservative.
# define GTEST_HAS_EXCEPTIONS 0
# endif // defined(_MSC_VER) || defined(__BORLANDC__)
#endif // GTEST_HAS_EXCEPTIONS
#ifndef GTEST_HAS_STD_WSTRING
// The user didn't tell us whether ::std::wstring is available, so we need
// to figure it out.
// Cygwin 1.7 and below doesn't support ::std::wstring.
// Solaris' libc++ doesn't support it either. Android has
// no support for it at least as recent as Froyo (2.2).
#define GTEST_HAS_STD_WSTRING \
(!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 || GTEST_OS_XTENSA))
#endif // GTEST_HAS_STD_WSTRING
// Determines whether RTTI is available.
#ifndef GTEST_HAS_RTTI
// The user didn't tell us whether RTTI is enabled, so we need to
// figure it out.
# ifdef _MSC_VER
#ifdef _CPPRTTI // MSVC defines this macro if and only if RTTI is enabled.
# define GTEST_HAS_RTTI 1
# else
# define GTEST_HAS_RTTI 0
# endif
// Starting with version 4.3.2, gcc defines __GXX_RTTI if and only if RTTI is
// enabled.
# elif defined(__GNUC__)
# ifdef __GXX_RTTI
// When building against STLport with the Android NDK and with
// -frtti -fno-exceptions, the build fails at link time with undefined
// references to __cxa_bad_typeid. Note sure if STL or toolchain bug,
// so disable RTTI when detected.
# if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) && \
!defined(__EXCEPTIONS)
# define GTEST_HAS_RTTI 0
# else
# define GTEST_HAS_RTTI 1
# endif // GTEST_OS_LINUX_ANDROID && __STLPORT_MAJOR && !__EXCEPTIONS
# else
# define GTEST_HAS_RTTI 0
# endif // __GXX_RTTI
// Clang defines __GXX_RTTI starting with version 3.0, but its manual recommends
// using has_feature instead. has_feature(cxx_rtti) is supported since 2.7, the
// first version with C++ support.
# elif defined(__clang__)
# define GTEST_HAS_RTTI __has_feature(cxx_rtti)
// Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if
// both the typeid and dynamic_cast features are present.
# elif defined(__IBMCPP__) && (__IBMCPP__ >= 900)
# ifdef __RTTI_ALL__
# define GTEST_HAS_RTTI 1
# else
# define GTEST_HAS_RTTI 0
# endif
# else
// For all other compilers, we assume RTTI is enabled.
# define GTEST_HAS_RTTI 1
# endif // _MSC_VER
#endif // GTEST_HAS_RTTI
// It's this header's responsibility to #include <typeinfo> when RTTI
// is enabled.
#if GTEST_HAS_RTTI
# include <typeinfo>
#endif
// Determines whether Google Test can use the pthreads library.
#ifndef GTEST_HAS_PTHREAD
// The user didn't tell us explicitly, so we make reasonable assumptions about
// which platforms have pthreads support.
//
// To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0
// to your compiler flags.
#define GTEST_HAS_PTHREAD \
(GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX || GTEST_OS_QNX || \
GTEST_OS_FREEBSD || GTEST_OS_NACL || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA || \
GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_OPENBSD || \
GTEST_OS_HAIKU)
#endif // GTEST_HAS_PTHREAD
#if GTEST_HAS_PTHREAD
// gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is
// true.
# include <pthread.h> // NOLINT
// For timespec and nanosleep, used below.
# include <time.h> // NOLINT
#endif
// Determines whether clone(2) is supported.
// Usually it will only be available on Linux, excluding
// Linux on the Itanium architecture.
// Also see http://linux.die.net/man/2/clone.
#ifndef GTEST_HAS_CLONE
// The user didn't tell us, so we need to figure it out.
# if GTEST_OS_LINUX && !defined(__ia64__)
# if GTEST_OS_LINUX_ANDROID
// On Android, clone() became available at different API levels for each 32-bit
// architecture.
# if defined(__LP64__) || \
(defined(__arm__) && __ANDROID_API__ >= 9) || \
(defined(__mips__) && __ANDROID_API__ >= 12) || \
(defined(__i386__) && __ANDROID_API__ >= 17)
# define GTEST_HAS_CLONE 1
# else
# define GTEST_HAS_CLONE 0
# endif
# else
# define GTEST_HAS_CLONE 1
# endif
# else
# define GTEST_HAS_CLONE 0
# endif // GTEST_OS_LINUX && !defined(__ia64__)
#endif // GTEST_HAS_CLONE
// Determines whether to support stream redirection. This is used to test
// output correctness and to implement death tests.
#ifndef GTEST_HAS_STREAM_REDIRECTION
// By default, we assume that stream redirection is supported on all
// platforms except known mobile ones.
#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
# define GTEST_HAS_STREAM_REDIRECTION 0
# else
# define GTEST_HAS_STREAM_REDIRECTION 1
# endif // !GTEST_OS_WINDOWS_MOBILE
#endif // GTEST_HAS_STREAM_REDIRECTION
// Determines whether to support death tests.
// pops up a dialog window that cannot be suppressed programmatically.
#if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
(GTEST_OS_MAC && !GTEST_OS_IOS) || \
(GTEST_OS_WINDOWS_DESKTOP && _MSC_VER) || GTEST_OS_WINDOWS_MINGW || \
GTEST_OS_AIX || GTEST_OS_HPUX || GTEST_OS_OPENBSD || GTEST_OS_QNX || \
GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA || \
GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_HAIKU)
# define GTEST_HAS_DEATH_TEST 1
#endif
// Determines whether to support type-driven tests.
// Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0,
// Sun Pro CC, IBM Visual Age, and HP aCC support.
#if defined(__GNUC__) || defined(_MSC_VER) || defined(__SUNPRO_CC) || \
defined(__IBMCPP__) || defined(__HP_aCC)
# define GTEST_HAS_TYPED_TEST 1
# define GTEST_HAS_TYPED_TEST_P 1
#endif
// Determines whether the system compiler uses UTF-16 for encoding wide strings.
#define GTEST_WIDE_STRING_USES_UTF16_ \
(GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_AIX || GTEST_OS_OS2)
// Determines whether test results can be streamed to a socket.
#if GTEST_OS_LINUX || GTEST_OS_GNU_KFREEBSD || GTEST_OS_DRAGONFLY || \
GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_OPENBSD
# define GTEST_CAN_STREAM_RESULTS_ 1
#endif
// Defines some utility macros.
// The GNU compiler emits a warning if nested "if" statements are followed by
// an "else" statement and braces are not used to explicitly disambiguate the
// "else" binding. This leads to problems with code like:
//
// if (gate)
// ASSERT_*(condition) << "Some message";
//
// The "switch (0) case 0:" idiom is used to suppress this.
#ifdef __INTEL_COMPILER
# define GTEST_AMBIGUOUS_ELSE_BLOCKER_
#else
# define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default: // NOLINT
#endif
// Use this annotation at the end of a struct/class definition to
// prevent the compiler from optimizing away instances that are never
// used. This is useful when all interesting logic happens inside the
// c'tor and / or d'tor. Example:
//
// struct Foo {
// Foo() { ... }
// } GTEST_ATTRIBUTE_UNUSED_;
//
// Also use it after a variable or parameter declaration to tell the
// compiler the variable/parameter does not have to be used.
#if defined(__GNUC__) && !defined(COMPILER_ICC)
# define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
#elif defined(__clang__)
# if __has_attribute(unused)
# define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
# endif
#endif
#ifndef GTEST_ATTRIBUTE_UNUSED_
# define GTEST_ATTRIBUTE_UNUSED_
#endif
// Use this annotation before a function that takes a printf format string.
#if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC)
# if defined(__MINGW_PRINTF_FORMAT)
// MinGW has two different printf implementations. Ensure the format macro
// matches the selected implementation. See
// https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
# define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
__attribute__((__format__(__MINGW_PRINTF_FORMAT, string_index, \
first_to_check)))
# else
# define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
__attribute__((__format__(__printf__, string_index, first_to_check)))
# endif
#else
# define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check)
#endif
// A macro to disallow copy operator=
// This should be used in the private: declarations for a class.
#define GTEST_DISALLOW_ASSIGN_(type) \
type& operator=(type const &) = delete
// A macro to disallow copy constructor and operator=
// This should be used in the private: declarations for a class.
#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type) \
type(type const&) = delete; \
type& operator=(type const&) = delete
// A macro to disallow move operator=
// This should be used in the private: declarations for a class.
#define GTEST_DISALLOW_MOVE_ASSIGN_(type) \
type& operator=(type &&) noexcept = delete
// A macro to disallow move constructor and operator=
// This should be used in the private: declarations for a class.
#define GTEST_DISALLOW_MOVE_AND_ASSIGN_(type) \
type(type&&) noexcept = delete; \
type& operator=(type&&) noexcept = delete
// Tell the compiler to warn about unused return values for functions declared
// with this macro. The macro should be used on function declarations
// following the argument list:
//
// Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_;
#if defined(__GNUC__) && !defined(COMPILER_ICC)
# define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result))
#else
# define GTEST_MUST_USE_RESULT_
#endif // __GNUC__ && !COMPILER_ICC
// MS C++ compiler emits warning when a conditional expression is compile time
// constant. In some contexts this warning is false positive and needs to be
// suppressed. Use the following two macros in such cases:
//
// GTEST_INTENTIONAL_CONST_COND_PUSH_()
// while (true) {
// GTEST_INTENTIONAL_CONST_COND_POP_()
// }
# define GTEST_INTENTIONAL_CONST_COND_PUSH_() \
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127)
# define GTEST_INTENTIONAL_CONST_COND_POP_() \
GTEST_DISABLE_MSC_WARNINGS_POP_()
// Determine whether the compiler supports Microsoft's Structured Exception
// Handling. This is supported by several Windows compilers but generally
// does not exist on any other system.
#ifndef GTEST_HAS_SEH
// The user didn't tell us, so we need to figure it out.
# if defined(_MSC_VER) || defined(__BORLANDC__)
// These two compilers are known to support SEH.
# define GTEST_HAS_SEH 1
# else
// Assume no SEH.
# define GTEST_HAS_SEH 0
# endif
#endif // GTEST_HAS_SEH
#ifndef GTEST_IS_THREADSAFE
#define GTEST_IS_THREADSAFE \
(GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ || \
(GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) || \
GTEST_HAS_PTHREAD)
#endif // GTEST_IS_THREADSAFE
// GTEST_API_ qualifies all symbols that must be exported. The definitions below
// are guarded by #ifndef to give embedders a chance to define GTEST_API_ in
// gtest/internal/custom/gtest-port.h
#ifndef GTEST_API_
#ifdef _MSC_VER
# if GTEST_LINKED_AS_SHARED_LIBRARY
# define GTEST_API_ __declspec(dllimport)
# elif GTEST_CREATE_SHARED_LIBRARY
# define GTEST_API_ __declspec(dllexport)
# endif
#elif __GNUC__ >= 4 || defined(__clang__)
# define GTEST_API_ __attribute__((visibility ("default")))
#endif // _MSC_VER
#endif // GTEST_API_
#ifndef GTEST_API_
# define GTEST_API_
#endif // GTEST_API_
#ifndef GTEST_DEFAULT_DEATH_TEST_STYLE
# define GTEST_DEFAULT_DEATH_TEST_STYLE "fast"
#endif // GTEST_DEFAULT_DEATH_TEST_STYLE
#ifdef __GNUC__
// Ask the compiler to never inline a given function.
# define GTEST_NO_INLINE_ __attribute__((noinline))
#else
# define GTEST_NO_INLINE_
#endif
// _LIBCPP_VERSION is defined by the libc++ library from the LLVM project.
#if !defined(GTEST_HAS_CXXABI_H_)
# if defined(__GLIBCXX__) || (defined(_LIBCPP_VERSION) && !defined(_MSC_VER))
# define GTEST_HAS_CXXABI_H_ 1
# else
# define GTEST_HAS_CXXABI_H_ 0
# endif
#endif
// A function level attribute to disable checking for use of uninitialized
// memory when built with MemorySanitizer.
#if defined(__clang__)
# if __has_feature(memory_sanitizer)
# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ \
__attribute__((no_sanitize_memory))
# else
# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
# endif // __has_feature(memory_sanitizer)
#else
# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
#endif // __clang__
// A function level attribute to disable AddressSanitizer instrumentation.
#if defined(__clang__)
# if __has_feature(address_sanitizer)
# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \
__attribute__((no_sanitize_address))
# else
# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
# endif // __has_feature(address_sanitizer)
#else
# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
#endif // __clang__
// A function level attribute to disable HWAddressSanitizer instrumentation.
#if defined(__clang__)
# if __has_feature(hwaddress_sanitizer)
# define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ \
__attribute__((no_sanitize("hwaddress")))
# else
# define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
# endif // __has_feature(hwaddress_sanitizer)
#else
# define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
#endif // __clang__
// A function level attribute to disable ThreadSanitizer instrumentation.
#if defined(__clang__)
# if __has_feature(thread_sanitizer)
# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ \
__attribute__((no_sanitize_thread))
# else
# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
# endif // __has_feature(thread_sanitizer)
#else
# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
#endif // __clang__
namespace testing {
class Message;
// Legacy imports for backwards compatibility.
// New code should use std:: names directly.
using std::get;
using std::make_tuple;
using std::tuple;
using std::tuple_element;
using std::tuple_size;
namespace internal {
// A secret type that Google Test users don't know about. It has no
// definition on purpose. Therefore it's impossible to create a
// Secret object, which is what we want.
class Secret;
// The GTEST_COMPILE_ASSERT_ is a legacy macro used to verify that a compile
// time expression is true (in new code, use static_assert instead). For
// example, you could use it to verify the size of a static array:
//
// GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES,
// names_incorrect_size);
//
// The second argument to the macro must be a valid C++ identifier. If the
// expression is false, compiler will issue an error containing this identifier.
#define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg)
// A helper for suppressing warnings on constant condition. It just
// returns 'condition'.
GTEST_API_ bool IsTrue(bool condition);
// Defines RE.
#if GTEST_USES_PCRE
// if used, PCRE is injected by custom/gtest-port.h
#elif GTEST_USES_POSIX_RE || GTEST_USES_SIMPLE_RE
// A simple C++ wrapper for <regex.h>. It uses the POSIX Extended
// Regular Expression syntax.
class GTEST_API_ RE {
public:
// A copy constructor is required by the Standard to initialize object
// references from r-values.
RE(const RE& other) { Init(other.pattern()); }
// Constructs an RE from a string.
RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT
RE(const char* regex) { Init(regex); } // NOLINT
~RE();
// Returns the string representation of the regex.
const char* pattern() const { return pattern_; }
// FullMatch(str, re) returns true if and only if regular expression re
// matches the entire str.
// PartialMatch(str, re) returns true if and only if regular expression re
// matches a substring of str (including str itself).
static bool FullMatch(const ::std::string& str, const RE& re) {
return FullMatch(str.c_str(), re);
}
static bool PartialMatch(const ::std::string& str, const RE& re) {
return PartialMatch(str.c_str(), re);
}
static bool FullMatch(const char* str, const RE& re);
static bool PartialMatch(const char* str, const RE& re);
private:
void Init(const char* regex);
const char* pattern_;
bool is_valid_;
# if GTEST_USES_POSIX_RE
regex_t full_regex_; // For FullMatch().
regex_t partial_regex_; // For PartialMatch().
# else // GTEST_USES_SIMPLE_RE
const char* full_pattern_; // For FullMatch();
# endif
};
#endif // GTEST_USES_PCRE
// Formats a source file path and a line number as they would appear
// in an error message from the compiler used to compile this code.
GTEST_API_ ::std::string FormatFileLocation(const char* file, int line);
// Formats a file location for compiler-independent XML output.
// Although this function is not platform dependent, we put it next to
// FormatFileLocation in order to contrast the two functions.
GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file,
int line);
// Defines logging utilities:
// GTEST_LOG_(severity) - logs messages at the specified severity level. The
// message itself is streamed into the macro.
// LogToStderr() - directs all log messages to stderr.
// FlushInfoLog() - flushes informational log messages.
enum GTestLogSeverity {
GTEST_INFO,
GTEST_WARNING,
GTEST_ERROR,
GTEST_FATAL
};
// Formats log entry severity, provides a stream object for streaming the
// log message, and terminates the message with a newline when going out of
// scope.
class GTEST_API_ GTestLog {
public:
GTestLog(GTestLogSeverity severity, const char* file, int line);
// Flushes the buffers and, if severity is GTEST_FATAL, aborts the program.
~GTestLog();
::std::ostream& GetStream() { return ::std::cerr; }
private:
const GTestLogSeverity severity_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog);
};
#if !defined(GTEST_LOG_)
# define GTEST_LOG_(severity) \
::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \
__FILE__, __LINE__).GetStream()
inline void LogToStderr() {}
inline void FlushInfoLog() { fflush(nullptr); }
#endif // !defined(GTEST_LOG_)
#if !defined(GTEST_CHECK_)
// INTERNAL IMPLEMENTATION - DO NOT USE.
//
// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
// is not satisfied.
// Synopsys:
// GTEST_CHECK_(boolean_condition);
// or
// GTEST_CHECK_(boolean_condition) << "Additional message";
//
// This checks the condition and if the condition is not satisfied
// it prints message about the condition violation, including the
// condition itself, plus additional message streamed into it, if any,
// and then it aborts the program. It aborts the program irrespective of
// whether it is built in the debug mode or not.
# define GTEST_CHECK_(condition) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::IsTrue(condition)) \
; \
else \
GTEST_LOG_(FATAL) << "Condition " #condition " failed. "
#endif // !defined(GTEST_CHECK_)
// An all-mode assert to verify that the given POSIX-style function
// call returns 0 (indicating success). Known limitation: this
// doesn't expand to a balanced 'if' statement, so enclose the macro
// in {} if you need to use it as the only statement in an 'if'
// branch.
#define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \
if (const int gtest_error = (posix_call)) \
GTEST_LOG_(FATAL) << #posix_call << "failed with error " \
<< gtest_error
// Transforms "T" into "const T&" according to standard reference collapsing
// rules (this is only needed as a backport for C++98 compilers that do not
// support reference collapsing). Specifically, it transforms:
//
// char ==> const char&
// const char ==> const char&
// char& ==> char&
// const char& ==> const char&
//
// Note that the non-const reference will not have "const" added. This is
// standard, and necessary so that "T" can always bind to "const T&".
template <typename T>
struct ConstRef { typedef const T& type; };
template <typename T>
struct ConstRef<T&> { typedef T& type; };
// The argument T must depend on some template parameters.
#define GTEST_REFERENCE_TO_CONST_(T) \
typename ::testing::internal::ConstRef<T>::type
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Use ImplicitCast_ as a safe version of static_cast for upcasting in
// the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a
// const Foo*). When you use ImplicitCast_, the compiler checks that
// the cast is safe. Such explicit ImplicitCast_s are necessary in
// surprisingly many situations where C++ demands an exact type match
// instead of an argument type convertable to a target type.
//
// The syntax for using ImplicitCast_ is the same as for static_cast:
//
// ImplicitCast_<ToType>(expr)
//
// ImplicitCast_ would have been part of the C++ standard library,
// but the proposal was submitted too late. It will probably make
// its way into the language in the future.
//
// This relatively ugly name is intentional. It prevents clashes with
// similar functions users may have (e.g., implicit_cast). The internal
// namespace alone is not enough because the function can be found by ADL.
template<typename To>
inline To ImplicitCast_(To x) { return x; }
// When you upcast (that is, cast a pointer from type Foo to type
// SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts
// always succeed. When you downcast (that is, cast a pointer from
// type Foo to type SubclassOfFoo), static_cast<> isn't safe, because
// how do you know the pointer is really of type SubclassOfFoo? It
// could be a bare Foo, or of type DifferentSubclassOfFoo. Thus,
// when you downcast, you should use this macro. In debug mode, we
// use dynamic_cast<> to double-check the downcast is legal (we die
// if it's not). In normal mode, we do the efficient static_cast<>
// instead. Thus, it's important to test in debug mode to make sure
// the cast is legal!
// This is the only place in the code we should use dynamic_cast<>.
// In particular, you SHOULDN'T be using dynamic_cast<> in order to
// do RTTI (eg code like this:
// if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo);
// if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo);
// You should design the code some other way not to need this.
//
// This relatively ugly name is intentional. It prevents clashes with
// similar functions users may have (e.g., down_cast). The internal
// namespace alone is not enough because the function can be found by ADL.
template<typename To, typename From> // use like this: DownCast_<T*>(foo);
inline To DownCast_(From* f) { // so we only accept pointers
// Ensures that To is a sub-type of From *. This test is here only
// for compile-time type checking, and has no overhead in an
// optimized build at run-time, as it will be optimized away
// completely.
GTEST_INTENTIONAL_CONST_COND_PUSH_()
if (false) {
GTEST_INTENTIONAL_CONST_COND_POP_()
const To to = nullptr;
::testing::internal::ImplicitCast_<From*>(to);
}
#if GTEST_HAS_RTTI
// RTTI: debug mode only!
GTEST_CHECK_(f == nullptr || dynamic_cast<To>(f) != nullptr);
#endif
return static_cast<To>(f);
}
// Downcasts the pointer of type Base to Derived.
// Derived must be a subclass of Base. The parameter MUST
// point to a class of type Derived, not any subclass of it.
// When RTTI is available, the function performs a runtime
// check to enforce this.
template <class Derived, class Base>
Derived* CheckedDowncastToActualType(Base* base) {
#if GTEST_HAS_RTTI
GTEST_CHECK_(typeid(*base) == typeid(Derived));
#endif
#if GTEST_HAS_DOWNCAST_
return ::down_cast<Derived*>(base);
#elif GTEST_HAS_RTTI
return dynamic_cast<Derived*>(base); // NOLINT
#else
return static_cast<Derived*>(base); // Poor man's downcast.
#endif
}
#if GTEST_HAS_STREAM_REDIRECTION
// Defines the stderr capturer:
// CaptureStdout - starts capturing stdout.
// GetCapturedStdout - stops capturing stdout and returns the captured string.
// CaptureStderr - starts capturing stderr.
// GetCapturedStderr - stops capturing stderr and returns the captured string.
//
GTEST_API_ void CaptureStdout();
GTEST_API_ std::string GetCapturedStdout();
GTEST_API_ void CaptureStderr();
GTEST_API_ std::string GetCapturedStderr();
#endif // GTEST_HAS_STREAM_REDIRECTION
// Returns the size (in bytes) of a file.
GTEST_API_ size_t GetFileSize(FILE* file);
// Reads the entire content of a file as a string.
GTEST_API_ std::string ReadEntireFile(FILE* file);
// All command line arguments.
GTEST_API_ std::vector<std::string> GetArgvs();
#if GTEST_HAS_DEATH_TEST
std::vector<std::string> GetInjectableArgvs();
// Deprecated: pass the args vector by value instead.
void SetInjectableArgvs(const std::vector<std::string>* new_argvs);
void SetInjectableArgvs(const std::vector<std::string>& new_argvs);
void ClearInjectableArgvs();
#endif // GTEST_HAS_DEATH_TEST
// Defines synchronization primitives.
#if GTEST_IS_THREADSAFE
# if GTEST_HAS_PTHREAD
// Sleeps for (roughly) n milliseconds. This function is only for testing
// Google Test's own constructs. Don't use it in user tests, either
// directly or indirectly.
inline void SleepMilliseconds(int n) {
const timespec time = {
0, // 0 seconds.
n * 1000L * 1000L, // And n ms.
};
nanosleep(&time, nullptr);
}
# endif // GTEST_HAS_PTHREAD
# if GTEST_HAS_NOTIFICATION_
// Notification has already been imported into the namespace.
// Nothing to do here.
# elif GTEST_HAS_PTHREAD
// Allows a controller thread to pause execution of newly created
// threads until notified. Instances of this class must be created
// and destroyed in the controller thread.
//
// This class is only for testing Google Test's own constructs. Do not
// use it in user tests, either directly or indirectly.
class Notification {
public:
Notification() : notified_(false) {
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, nullptr));
}
~Notification() {
pthread_mutex_destroy(&mutex_);
}
// Notifies all threads created with this notification to start. Must
// be called from the controller thread.
void Notify() {
pthread_mutex_lock(&mutex_);
notified_ = true;
pthread_mutex_unlock(&mutex_);
}
// Blocks until the controller thread notifies. Must be called from a test
// thread.
void WaitForNotification() {
for (;;) {
pthread_mutex_lock(&mutex_);
const bool notified = notified_;
pthread_mutex_unlock(&mutex_);
if (notified)
break;
SleepMilliseconds(10);
}
}
private:
pthread_mutex_t mutex_;
bool notified_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
};
# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
GTEST_API_ void SleepMilliseconds(int n);
// Provides leak-safe Windows kernel handle ownership.
// Used in death tests and in threading support.
class GTEST_API_ AutoHandle {
public:
// Assume that Win32 HANDLE type is equivalent to void*. Doing so allows us to
// avoid including <windows.h> in this header file. Including <windows.h> is
// undesirable because it defines a lot of symbols and macros that tend to
// conflict with client code. This assumption is verified by
// WindowsTypesTest.HANDLEIsVoidStar.
typedef void* Handle;
AutoHandle();
explicit AutoHandle(Handle handle);
~AutoHandle();
Handle Get() const;
void Reset();
void Reset(Handle handle);
private:
// Returns true if and only if the handle is a valid handle object that can be
// closed.
bool IsCloseable() const;
Handle handle_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(AutoHandle);
};
// Allows a controller thread to pause execution of newly created
// threads until notified. Instances of this class must be created
// and destroyed in the controller thread.
//
// This class is only for testing Google Test's own constructs. Do not
// use it in user tests, either directly or indirectly.
class GTEST_API_ Notification {
public:
Notification();
void Notify();
void WaitForNotification();
private:
AutoHandle event_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
};
# endif // GTEST_HAS_NOTIFICATION_
// On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD
// defined, but we don't want to use MinGW's pthreads implementation, which
// has conformance problems with some versions of the POSIX standard.
# if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
// As a C-function, ThreadFuncWithCLinkage cannot be templated itself.
// Consequently, it cannot select a correct instantiation of ThreadWithParam
// in order to call its Run(). Introducing ThreadWithParamBase as a
// non-templated base class for ThreadWithParam allows us to bypass this
// problem.
class ThreadWithParamBase {
public:
virtual ~ThreadWithParamBase() {}
virtual void Run() = 0;
};
// pthread_create() accepts a pointer to a function type with the C linkage.
// According to the Standard (7.5/1), function types with different linkages
// are different even if they are otherwise identical. Some compilers (for
// example, SunStudio) treat them as different types. Since class methods
// cannot be defined with C-linkage we need to define a free C-function to
// pass into pthread_create().
extern "C" inline void* ThreadFuncWithCLinkage(void* thread) {
static_cast<ThreadWithParamBase*>(thread)->Run();
return nullptr;
}
// Helper class for testing Google Test's multi-threading constructs.
// To use it, write:
//
// void ThreadFunc(int param) { /* Do things with param */ }
// Notification thread_can_start;
// ...
// // The thread_can_start parameter is optional; you can supply NULL.
// ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start);
// thread_can_start.Notify();
//
// These classes are only for testing Google Test's own constructs. Do
// not use them in user tests, either directly or indirectly.
template <typename T>
class ThreadWithParam : public ThreadWithParamBase {
public:
typedef void UserThreadFunc(T);
ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
: func_(func),
param_(param),
thread_can_start_(thread_can_start),
finished_(false) {
ThreadWithParamBase* const base = this;
// The thread can be created only after all fields except thread_
// have been initialized.
GTEST_CHECK_POSIX_SUCCESS_(
pthread_create(&thread_, nullptr, &ThreadFuncWithCLinkage, base));
}
~ThreadWithParam() override { Join(); }
void Join() {
if (!finished_) {
GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, nullptr));
finished_ = true;
}
}
void Run() override {
if (thread_can_start_ != nullptr) thread_can_start_->WaitForNotification();
func_(param_);
}
private:
UserThreadFunc* const func_; // User-supplied thread function.
const T param_; // User-supplied parameter to the thread function.
// When non-NULL, used to block execution until the controller thread
// notifies.
Notification* const thread_can_start_;
bool finished_; // true if and only if we know that the thread function has
// finished.
pthread_t thread_; // The native thread object.
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
};
# endif // !GTEST_OS_WINDOWS && GTEST_HAS_PTHREAD ||
// GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
# if GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
// Mutex and ThreadLocal have already been imported into the namespace.
// Nothing to do here.
# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
// Mutex implements mutex on Windows platforms. It is used in conjunction
// with class MutexLock:
//
// Mutex mutex;
// ...
// MutexLock lock(&mutex); // Acquires the mutex and releases it at the
// // end of the current scope.
//
// A static Mutex *must* be defined or declared using one of the following
// macros:
// GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex);
// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
//
// (A non-static Mutex is defined/declared in the usual way).
class GTEST_API_ Mutex {
public:
enum MutexType { kStatic = 0, kDynamic = 1 };
// We rely on kStaticMutex being 0 as it is to what the linker initializes
// type_ in static mutexes. critical_section_ will be initialized lazily
// in ThreadSafeLazyInit().
enum StaticConstructorSelector { kStaticMutex = 0 };
// This constructor intentionally does nothing. It relies on type_ being
// statically initialized to 0 (effectively setting it to kStatic) and on
// ThreadSafeLazyInit() to lazily initialize the rest of the members.
explicit Mutex(StaticConstructorSelector /*dummy*/) {}
Mutex();
~Mutex();
void Lock();
void Unlock();
// Does nothing if the current thread holds the mutex. Otherwise, crashes
// with high probability.
void AssertHeld();
private:
// Initializes owner_thread_id_ and critical_section_ in static mutexes.
void ThreadSafeLazyInit();
// Per https://blogs.msdn.microsoft.com/oldnewthing/20040223-00/?p=40503,
// we assume that 0 is an invalid value for thread IDs.
unsigned int owner_thread_id_;
// For static mutexes, we rely on these members being initialized to zeros
// by the linker.
MutexType type_;
long critical_section_init_phase_; // NOLINT
GTEST_CRITICAL_SECTION* critical_section_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
};
# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
extern ::testing::internal::Mutex mutex
# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
::testing::internal::Mutex mutex(::testing::internal::Mutex::kStaticMutex)
// We cannot name this class MutexLock because the ctor declaration would
// conflict with a macro named MutexLock, which is defined on some
// platforms. That macro is used as a defensive measure to prevent against
// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
// "MutexLock l(&mu)". Hence the typedef trick below.
class GTestMutexLock {
public:
explicit GTestMutexLock(Mutex* mutex)
: mutex_(mutex) { mutex_->Lock(); }
~GTestMutexLock() { mutex_->Unlock(); }
private:
Mutex* const mutex_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock);
};
typedef GTestMutexLock MutexLock;
// Base class for ValueHolder<T>. Allows a caller to hold and delete a value
// without knowing its type.
class ThreadLocalValueHolderBase {
public:
virtual ~ThreadLocalValueHolderBase() {}
};
// Provides a way for a thread to send notifications to a ThreadLocal
// regardless of its parameter type.
class ThreadLocalBase {
public:
// Creates a new ValueHolder<T> object holding a default value passed to
// this ThreadLocal<T>'s constructor and returns it. It is the caller's
// responsibility not to call this when the ThreadLocal<T> instance already
// has a value on the current thread.
virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const = 0;
protected:
ThreadLocalBase() {}
virtual ~ThreadLocalBase() {}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocalBase);
};
// Maps a thread to a set of ThreadLocals that have values instantiated on that
// thread and notifies them when the thread exits. A ThreadLocal instance is
// expected to persist until all threads it has values on have terminated.
class GTEST_API_ ThreadLocalRegistry {
public:
// Registers thread_local_instance as having value on the current thread.
// Returns a value that can be used to identify the thread from other threads.
static ThreadLocalValueHolderBase* GetValueOnCurrentThread(
const ThreadLocalBase* thread_local_instance);
// Invoked when a ThreadLocal instance is destroyed.
static void OnThreadLocalDestroyed(
const ThreadLocalBase* thread_local_instance);
};
class GTEST_API_ ThreadWithParamBase {
public:
void Join();
protected:
class Runnable {
public:
virtual ~Runnable() {}
virtual void Run() = 0;
};
ThreadWithParamBase(Runnable *runnable, Notification* thread_can_start);
virtual ~ThreadWithParamBase();
private:
AutoHandle thread_;
};
// Helper class for testing Google Test's multi-threading constructs.
template <typename T>
class ThreadWithParam : public ThreadWithParamBase {
public:
typedef void UserThreadFunc(T);
ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
: ThreadWithParamBase(new RunnableImpl(func, param), thread_can_start) {
}
virtual ~ThreadWithParam() {}
private:
class RunnableImpl : public Runnable {
public:
RunnableImpl(UserThreadFunc* func, T param)
: func_(func),
param_(param) {
}
virtual ~RunnableImpl() {}
virtual void Run() {
func_(param_);
}
private:
UserThreadFunc* const func_;
const T param_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(RunnableImpl);
};
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
};
// Implements thread-local storage on Windows systems.
//
// // Thread 1
// ThreadLocal<int> tl(100); // 100 is the default value for each thread.
//
// // Thread 2
// tl.set(150); // Changes the value for thread 2 only.
// EXPECT_EQ(150, tl.get());
//
// // Thread 1
// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value.
// tl.set(200);
// EXPECT_EQ(200, tl.get());
//
// The template type argument T must have a public copy constructor.
// In addition, the default ThreadLocal constructor requires T to have
// a public default constructor.
//
// The users of a TheadLocal instance have to make sure that all but one
// threads (including the main one) using that instance have exited before
// destroying it. Otherwise, the per-thread objects managed for them by the
// ThreadLocal instance are not guaranteed to be destroyed on all platforms.
//
// Google Test only uses global ThreadLocal objects. That means they
// will die after main() has returned. Therefore, no per-thread
// object managed by Google Test will be leaked as long as all threads
// using Google Test have exited when main() returns.
template <typename T>
class ThreadLocal : public ThreadLocalBase {
public:
ThreadLocal() : default_factory_(new DefaultValueHolderFactory()) {}
explicit ThreadLocal(const T& value)
: default_factory_(new InstanceValueHolderFactory(value)) {}
~ThreadLocal() { ThreadLocalRegistry::OnThreadLocalDestroyed(this); }
T* pointer() { return GetOrCreateValue(); }
const T* pointer() const { return GetOrCreateValue(); }
const T& get() const { return *pointer(); }
void set(const T& value) { *pointer() = value; }
private:
// Holds a value of T. Can be deleted via its base class without the caller
// knowing the type of T.
class ValueHolder : public ThreadLocalValueHolderBase {
public:
ValueHolder() : value_() {}
explicit ValueHolder(const T& value) : value_(value) {}
T* pointer() { return &value_; }
private:
T value_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder);
};
T* GetOrCreateValue() const {
return static_cast<ValueHolder*>(
ThreadLocalRegistry::GetValueOnCurrentThread(this))->pointer();
}
virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const {
return default_factory_->MakeNewHolder();
}
class ValueHolderFactory {
public:
ValueHolderFactory() {}
virtual ~ValueHolderFactory() {}
virtual ValueHolder* MakeNewHolder() const = 0;
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory);
};
class DefaultValueHolderFactory : public ValueHolderFactory {
public:
DefaultValueHolderFactory() {}
ValueHolder* MakeNewHolder() const override { return new ValueHolder(); }
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory);
};
class InstanceValueHolderFactory : public ValueHolderFactory {
public:
explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
ValueHolder* MakeNewHolder() const override {
return new ValueHolder(value_);
}
private:
const T value_; // The value for each thread.
GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory);
};
std::unique_ptr<ValueHolderFactory> default_factory_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
};
# elif GTEST_HAS_PTHREAD
// MutexBase and Mutex implement mutex on pthreads-based platforms.
class MutexBase {
public:
// Acquires this mutex.
void Lock() {
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
owner_ = pthread_self();
has_owner_ = true;
}
// Releases this mutex.
void Unlock() {
// Since the lock is being released the owner_ field should no longer be
// considered valid. We don't protect writing to has_owner_ here, as it's
// the caller's responsibility to ensure that the current thread holds the
// mutex when this is called.
has_owner_ = false;
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_));
}
// Does nothing if the current thread holds the mutex. Otherwise, crashes
// with high probability.
void AssertHeld() const {
GTEST_CHECK_(has_owner_ && pthread_equal(owner_, pthread_self()))
<< "The current thread is not holding the mutex @" << this;
}
// A static mutex may be used before main() is entered. It may even
// be used before the dynamic initialization stage. Therefore we
// must be able to initialize a static mutex object at link time.
// This means MutexBase has to be a POD and its member variables
// have to be public.
public:
pthread_mutex_t mutex_; // The underlying pthread mutex.
// has_owner_ indicates whether the owner_ field below contains a valid thread
// ID and is therefore safe to inspect (e.g., to use in pthread_equal()). All
// accesses to the owner_ field should be protected by a check of this field.
// An alternative might be to memset() owner_ to all zeros, but there's no
// guarantee that a zero'd pthread_t is necessarily invalid or even different
// from pthread_self().
bool has_owner_;
pthread_t owner_; // The thread holding the mutex.
};
// Forward-declares a static mutex.
# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
extern ::testing::internal::MutexBase mutex
// Defines and statically (i.e. at link time) initializes a static mutex.
// The initialization list here does not explicitly initialize each field,
// instead relying on default initialization for the unspecified fields. In
// particular, the owner_ field (a pthread_t) is not explicitly initialized.
// This allows initialization to work whether pthread_t is a scalar or struct.
// The flag -Wmissing-field-initializers must not be specified for this to work.
#define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
::testing::internal::MutexBase mutex = {PTHREAD_MUTEX_INITIALIZER, false, 0}
// The Mutex class can only be used for mutexes created at runtime. It
// shares its API with MutexBase otherwise.
class Mutex : public MutexBase {
public:
Mutex() {
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, nullptr));
has_owner_ = false;
}
~Mutex() {
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_));
}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
};
// We cannot name this class MutexLock because the ctor declaration would
// conflict with a macro named MutexLock, which is defined on some
// platforms. That macro is used as a defensive measure to prevent against
// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
// "MutexLock l(&mu)". Hence the typedef trick below.
class GTestMutexLock {
public:
explicit GTestMutexLock(MutexBase* mutex)
: mutex_(mutex) { mutex_->Lock(); }
~GTestMutexLock() { mutex_->Unlock(); }
private:
MutexBase* const mutex_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock);
};
typedef GTestMutexLock MutexLock;
// Helpers for ThreadLocal.
// pthread_key_create() requires DeleteThreadLocalValue() to have
// C-linkage. Therefore it cannot be templatized to access
// ThreadLocal<T>. Hence the need for class
// ThreadLocalValueHolderBase.
class ThreadLocalValueHolderBase {
public:
virtual ~ThreadLocalValueHolderBase() {}
};
// Called by pthread to delete thread-local data stored by
// pthread_setspecific().
extern "C" inline void DeleteThreadLocalValue(void* value_holder) {
delete static_cast<ThreadLocalValueHolderBase*>(value_holder);
}
// Implements thread-local storage on pthreads-based systems.
template <typename T>
class GTEST_API_ ThreadLocal {
public:
ThreadLocal()
: key_(CreateKey()), default_factory_(new DefaultValueHolderFactory()) {}
explicit ThreadLocal(const T& value)
: key_(CreateKey()),
default_factory_(new InstanceValueHolderFactory(value)) {}
~ThreadLocal() {
// Destroys the managed object for the current thread, if any.
DeleteThreadLocalValue(pthread_getspecific(key_));
// Releases resources associated with the key. This will *not*
// delete managed objects for other threads.
GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_));
}
T* pointer() { return GetOrCreateValue(); }
const T* pointer() const { return GetOrCreateValue(); }
const T& get() const { return *pointer(); }
void set(const T& value) { *pointer() = value; }
private:
// Holds a value of type T.
class ValueHolder : public ThreadLocalValueHolderBase {
public:
ValueHolder() : value_() {}
explicit ValueHolder(const T& value) : value_(value) {}
T* pointer() { return &value_; }
private:
T value_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder);
};
static pthread_key_t CreateKey() {
pthread_key_t key;
// When a thread exits, DeleteThreadLocalValue() will be called on
// the object managed for that thread.
GTEST_CHECK_POSIX_SUCCESS_(
pthread_key_create(&key, &DeleteThreadLocalValue));
return key;
}
T* GetOrCreateValue() const {
ThreadLocalValueHolderBase* const holder =
static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_));
if (holder != nullptr) {
return CheckedDowncastToActualType<ValueHolder>(holder)->pointer();
}
ValueHolder* const new_holder = default_factory_->MakeNewHolder();
ThreadLocalValueHolderBase* const holder_base = new_holder;
GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base));
return new_holder->pointer();
}
class ValueHolderFactory {
public:
ValueHolderFactory() {}
virtual ~ValueHolderFactory() {}
virtual ValueHolder* MakeNewHolder() const = 0;
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory);
};
class DefaultValueHolderFactory : public ValueHolderFactory {
public:
DefaultValueHolderFactory() {}
ValueHolder* MakeNewHolder() const override { return new ValueHolder(); }
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory);
};
class InstanceValueHolderFactory : public ValueHolderFactory {
public:
explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
ValueHolder* MakeNewHolder() const override {
return new ValueHolder(value_);
}
private:
const T value_; // The value for each thread.
GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory);
};
// A key pthreads uses for looking up per-thread values.
const pthread_key_t key_;
std::unique_ptr<ValueHolderFactory> default_factory_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
};
# endif // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
#else // GTEST_IS_THREADSAFE
// A dummy implementation of synchronization primitives (mutex, lock,
// and thread-local variable). Necessary for compiling Google Test where
// mutex is not supported - using Google Test in multiple threads is not
// supported on such platforms.
class Mutex {
public:
Mutex() {}
void Lock() {}
void Unlock() {}
void AssertHeld() const {}
};
# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
extern ::testing::internal::Mutex mutex
# define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex
// We cannot name this class MutexLock because the ctor declaration would
// conflict with a macro named MutexLock, which is defined on some
// platforms. That macro is used as a defensive measure to prevent against
// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
// "MutexLock l(&mu)". Hence the typedef trick below.
class GTestMutexLock {
public:
explicit GTestMutexLock(Mutex*) {} // NOLINT
};
typedef GTestMutexLock MutexLock;
template <typename T>
class GTEST_API_ ThreadLocal {
public:
ThreadLocal() : value_() {}
explicit ThreadLocal(const T& value) : value_(value) {}
T* pointer() { return &value_; }
const T* pointer() const { return &value_; }
const T& get() const { return value_; }
void set(const T& value) { value_ = value; }
private:
T value_;
};
#endif // GTEST_IS_THREADSAFE
// Returns the number of threads running in the process, or 0 to indicate that
// we cannot detect it.
GTEST_API_ size_t GetThreadCount();
#if GTEST_OS_WINDOWS
# define GTEST_PATH_SEP_ "\\"
# define GTEST_HAS_ALT_PATH_SEP_ 1
#else
# define GTEST_PATH_SEP_ "/"
# define GTEST_HAS_ALT_PATH_SEP_ 0
#endif // GTEST_OS_WINDOWS
// Utilities for char.
// isspace(int ch) and friends accept an unsigned char or EOF. char
// may be signed, depending on the compiler (or compiler flags).
// Therefore we need to cast a char to unsigned char before calling
// isspace(), etc.
inline bool IsAlpha(char ch) {
return isalpha(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsAlNum(char ch) {
return isalnum(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsDigit(char ch) {
return isdigit(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsLower(char ch) {
return islower(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsSpace(char ch) {
return isspace(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsUpper(char ch) {
return isupper(static_cast<unsigned char>(ch)) != 0;
}
inline bool IsXDigit(char ch) {
return isxdigit(static_cast<unsigned char>(ch)) != 0;
}
#ifdef __cpp_char8_t
inline bool IsXDigit(char8_t ch) {
return isxdigit(static_cast<unsigned char>(ch)) != 0;
}
#endif
inline bool IsXDigit(char16_t ch) {
const unsigned char low_byte = static_cast<unsigned char>(ch);
return ch == low_byte && isxdigit(low_byte) != 0;
}
inline bool IsXDigit(char32_t ch) {
const unsigned char low_byte = static_cast<unsigned char>(ch);
return ch == low_byte && isxdigit(low_byte) != 0;
}
inline bool IsXDigit(wchar_t ch) {
const unsigned char low_byte = static_cast<unsigned char>(ch);
return ch == low_byte && isxdigit(low_byte) != 0;
}
inline char ToLower(char ch) {
return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
}
inline char ToUpper(char ch) {
return static_cast<char>(toupper(static_cast<unsigned char>(ch)));
}
inline std::string StripTrailingSpaces(std::string str) {
std::string::iterator it = str.end();
while (it != str.begin() && IsSpace(*--it))
it = str.erase(it);
return str;
}
// The testing::internal::posix namespace holds wrappers for common
// POSIX functions. These wrappers hide the differences between
// Windows/MSVC and POSIX systems. Since some compilers define these
// standard functions as macros, the wrapper cannot have the same name
// as the wrapped function.
namespace posix {
// Functions with a different name on Windows.
#if GTEST_OS_WINDOWS
typedef struct _stat StatStruct;
# ifdef __BORLANDC__
inline int DoIsATTY(int fd) { return isatty(fd); }
inline int StrCaseCmp(const char* s1, const char* s2) {
return stricmp(s1, s2);
}
inline char* StrDup(const char* src) { return strdup(src); }
# else // !__BORLANDC__
# if GTEST_OS_WINDOWS_MOBILE
inline int DoIsATTY(int /* fd */) { return 0; }
# else
inline int DoIsATTY(int fd) { return _isatty(fd); }
# endif // GTEST_OS_WINDOWS_MOBILE
inline int StrCaseCmp(const char* s1, const char* s2) {
return _stricmp(s1, s2);
}
inline char* StrDup(const char* src) { return _strdup(src); }
# endif // __BORLANDC__
# if GTEST_OS_WINDOWS_MOBILE
inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); }
// Stat(), RmDir(), and IsDir() are not needed on Windows CE at this
// time and thus not defined there.
# else
inline int FileNo(FILE* file) { return _fileno(file); }
inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); }
inline int RmDir(const char* dir) { return _rmdir(dir); }
inline bool IsDir(const StatStruct& st) {
return (_S_IFDIR & st.st_mode) != 0;
}
# endif // GTEST_OS_WINDOWS_MOBILE
#elif GTEST_OS_ESP8266
typedef struct stat StatStruct;
inline int FileNo(FILE* file) { return fileno(file); }
inline int DoIsATTY(int fd) { return isatty(fd); }
inline int Stat(const char* path, StatStruct* buf) {
// stat function not implemented on ESP8266
return 0;
}
inline int StrCaseCmp(const char* s1, const char* s2) {
return strcasecmp(s1, s2);
}
inline char* StrDup(const char* src) { return strdup(src); }
inline int RmDir(const char* dir) { return rmdir(dir); }
inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
#else
typedef struct stat StatStruct;
inline int FileNo(FILE* file) { return fileno(file); }
inline int DoIsATTY(int fd) { return isatty(fd); }
inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); }
inline int StrCaseCmp(const char* s1, const char* s2) {
return strcasecmp(s1, s2);
}
inline char* StrDup(const char* src) { return strdup(src); }
inline int RmDir(const char* dir) { return rmdir(dir); }
inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
#endif // GTEST_OS_WINDOWS
inline int IsATTY(int fd) {
// DoIsATTY might change errno (for example ENOTTY in case you redirect stdout
// to a file on Linux), which is unexpected, so save the previous value, and
// restore it after the call.
int savedErrno = errno;
int isAttyValue = DoIsATTY(fd);
errno = savedErrno;
return isAttyValue;
}
// Functions deprecated by MSVC 8.0.
GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
// ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and
// StrError() aren't needed on Windows CE at this time and thus not
// defined there.
#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && \
!GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA
inline int ChDir(const char* dir) { return chdir(dir); }
#endif
inline FILE* FOpen(const char* path, const char* mode) {
#if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
struct wchar_codecvt : public std::codecvt<wchar_t, char, std::mbstate_t> {};
std::wstring_convert<wchar_codecvt> converter;
std::wstring wide_path = converter.from_bytes(path);
std::wstring wide_mode = converter.from_bytes(mode);
return _wfopen(wide_path.c_str(), wide_mode.c_str());
#else // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
return fopen(path, mode);
#endif // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
}
#if !GTEST_OS_WINDOWS_MOBILE
inline FILE *FReopen(const char* path, const char* mode, FILE* stream) {
return freopen(path, mode, stream);
}
inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
#endif
inline int FClose(FILE* fp) { return fclose(fp); }
#if !GTEST_OS_WINDOWS_MOBILE
inline int Read(int fd, void* buf, unsigned int count) {
return static_cast<int>(read(fd, buf, count));
}
inline int Write(int fd, const void* buf, unsigned int count) {
return static_cast<int>(write(fd, buf, count));
}
inline int Close(int fd) { return close(fd); }
inline const char* StrError(int errnum) { return strerror(errnum); }
#endif
inline const char* GetEnv(const char* name) {
#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
// We are on an embedded platform, which has no environment variables.
static_cast<void>(name); // To prevent 'unused argument' warning.
return nullptr;
#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
// Environment variables which we programmatically clear will be set to the
// empty string rather than unset (NULL). Handle that case.
const char* const env = getenv(name);
return (env != nullptr && env[0] != '\0') ? env : nullptr;
#else
return getenv(name);
#endif
}
GTEST_DISABLE_MSC_DEPRECATED_POP_()
#if GTEST_OS_WINDOWS_MOBILE
// Windows CE has no C library. The abort() function is used in
// several places in Google Test. This implementation provides a reasonable
// imitation of standard behaviour.
[[noreturn]] void Abort();
#else
[[noreturn]] inline void Abort() { abort(); }
#endif // GTEST_OS_WINDOWS_MOBILE
} // namespace posix
// MSVC "deprecates" snprintf and issues warnings wherever it is used. In
// order to avoid these warnings, we need to use _snprintf or _snprintf_s on
// MSVC-based platforms. We map the GTEST_SNPRINTF_ macro to the appropriate
// function in order to achieve that. We use macro definition here because
// snprintf is a variadic function.
#if _MSC_VER && !GTEST_OS_WINDOWS_MOBILE
// MSVC 2005 and above support variadic macros.
# define GTEST_SNPRINTF_(buffer, size, format, ...) \
_snprintf_s(buffer, size, size, format, __VA_ARGS__)
#elif defined(_MSC_VER)
// Windows CE does not define _snprintf_s
# define GTEST_SNPRINTF_ _snprintf
#else
# define GTEST_SNPRINTF_ snprintf
#endif
// The biggest signed integer type the compiler supports.
//
// long long is guaranteed to be at least 64-bits in C++11.
using BiggestInt = long long; // NOLINT
// The maximum number a BiggestInt can represent.
constexpr BiggestInt kMaxBiggestInt = (std::numeric_limits<BiggestInt>::max)();
// This template class serves as a compile-time function from size to
// type. It maps a size in bytes to a primitive type with that
// size. e.g.
//
// TypeWithSize<4>::UInt
//
// is typedef-ed to be unsigned int (unsigned integer made up of 4
// bytes).
//
// Such functionality should belong to STL, but I cannot find it
// there.
//
// Google Test uses this class in the implementation of floating-point
// comparison.
//
// For now it only handles UInt (unsigned int) as that's all Google Test
// needs. Other types can be easily added in the future if need
// arises.
template <size_t size>
class TypeWithSize {
public:
// This prevents the user from using TypeWithSize<N> with incorrect
// values of N.
using UInt = void;
};
// The specialization for size 4.
template <>
class TypeWithSize<4> {
public:
using Int = std::int32_t;
using UInt = std::uint32_t;
};
// The specialization for size 8.
template <>
class TypeWithSize<8> {
public:
using Int = std::int64_t;
using UInt = std::uint64_t;
};
// Integer types of known sizes.
using TimeInMillis = int64_t; // Represents time in milliseconds.
// Utilities for command line flags and environment variables.
// Macro for referencing flags.
#if !defined(GTEST_FLAG)
# define GTEST_FLAG(name) FLAGS_gtest_##name
#endif // !defined(GTEST_FLAG)
#if !defined(GTEST_USE_OWN_FLAGFILE_FLAG_)
# define GTEST_USE_OWN_FLAGFILE_FLAG_ 1
#endif // !defined(GTEST_USE_OWN_FLAGFILE_FLAG_)
#if !defined(GTEST_DECLARE_bool_)
# define GTEST_FLAG_SAVER_ ::testing::internal::GTestFlagSaver
// Macros for declaring flags.
# define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name)
# define GTEST_DECLARE_int32_(name) \
GTEST_API_ extern std::int32_t GTEST_FLAG(name)
# define GTEST_DECLARE_string_(name) \
GTEST_API_ extern ::std::string GTEST_FLAG(name)
// Macros for defining flags.
# define GTEST_DEFINE_bool_(name, default_val, doc) \
GTEST_API_ bool GTEST_FLAG(name) = (default_val)
# define GTEST_DEFINE_int32_(name, default_val, doc) \
GTEST_API_ std::int32_t GTEST_FLAG(name) = (default_val)
# define GTEST_DEFINE_string_(name, default_val, doc) \
GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val)
#endif // !defined(GTEST_DECLARE_bool_)
// Thread annotations
#if !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
# define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks)
# define GTEST_LOCK_EXCLUDED_(locks)
#endif // !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
// Parses 'str' for a 32-bit signed integer. If successful, writes the result
// to *value and returns true; otherwise leaves *value unchanged and returns
// false.
GTEST_API_ bool ParseInt32(const Message& src_text, const char* str,
int32_t* value);
// Parses a bool/int32_t/string from the environment variable
// corresponding to the given Google Test flag.
bool BoolFromGTestEnv(const char* flag, bool default_val);
GTEST_API_ int32_t Int32FromGTestEnv(const char* flag, int32_t default_val);
std::string OutputFlagAlsoCheckEnvVar();
const char* StringFromGTestEnv(const char* flag, const char* default_val);
} // namespace internal
} // namespace testing
#if !defined(GTEST_INTERNAL_DEPRECATED)
// Internal Macro to mark an API deprecated, for googletest usage only
// Usage: class GTEST_INTERNAL_DEPRECATED(message) MyClass or
// GTEST_INTERNAL_DEPRECATED(message) <return_type> myFunction(); Every usage of
// a deprecated entity will trigger a warning when compiled with
// `-Wdeprecated-declarations` option (clang, gcc, any __GNUC__ compiler).
// For msvc /W3 option will need to be used
// Note that for 'other' compilers this macro evaluates to nothing to prevent
// compilations errors.
#if defined(_MSC_VER)
#define GTEST_INTERNAL_DEPRECATED(message) __declspec(deprecated(message))
#elif defined(__GNUC__)
#define GTEST_INTERNAL_DEPRECATED(message) __attribute__((deprecated(message)))
#else
#define GTEST_INTERNAL_DEPRECATED(message)
#endif
#endif // !defined(GTEST_INTERNAL_DEPRECATED)
#if GTEST_HAS_ABSL
// Always use absl::any for UniversalPrinter<> specializations if googletest
// is built with absl support.
#define GTEST_INTERNAL_HAS_ANY 1
#include "absl/types/any.h"
namespace testing {
namespace internal {
using Any = ::absl::any;
} // namespace internal
} // namespace testing
#else
#ifdef __has_include
#if __has_include(<any>) && __cplusplus >= 201703L
// Otherwise for C++17 and higher use std::any for UniversalPrinter<>
// specializations.
#define GTEST_INTERNAL_HAS_ANY 1
#include <any>
namespace testing {
namespace internal {
using Any = ::std::any;
} // namespace internal
} // namespace testing
// The case where absl is configured NOT to alias std::any is not
// supported.
#endif // __has_include(<any>) && __cplusplus >= 201703L
#endif // __has_include
#endif // GTEST_HAS_ABSL
#if GTEST_HAS_ABSL
// Always use absl::optional for UniversalPrinter<> specializations if
// googletest is built with absl support.
#define GTEST_INTERNAL_HAS_OPTIONAL 1
#include "absl/types/optional.h"
namespace testing {
namespace internal {
template <typename T>
using Optional = ::absl::optional<T>;
} // namespace internal
} // namespace testing
#else
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L
// Otherwise for C++17 and higher use std::optional for UniversalPrinter<>
// specializations.
#define GTEST_INTERNAL_HAS_OPTIONAL 1
#include <optional>
namespace testing {
namespace internal {
template <typename T>
using Optional = ::std::optional<T>;
} // namespace internal
} // namespace testing
// The case where absl is configured NOT to alias std::optional is not
// supported.
#endif // __has_include(<optional>) && __cplusplus >= 201703L
#endif // __has_include
#endif // GTEST_HAS_ABSL
#if GTEST_HAS_ABSL
// Always use absl::string_view for Matcher<> specializations if googletest
// is built with absl support.
# define GTEST_INTERNAL_HAS_STRING_VIEW 1
#include "absl/strings/string_view.h"
namespace testing {
namespace internal {
using StringView = ::absl::string_view;
} // namespace internal
} // namespace testing
#else
# ifdef __has_include
# if __has_include(<string_view>) && __cplusplus >= 201703L
// Otherwise for C++17 and higher use std::string_view for Matcher<>
// specializations.
# define GTEST_INTERNAL_HAS_STRING_VIEW 1
#include <string_view>
namespace testing {
namespace internal {
using StringView = ::std::string_view;
} // namespace internal
} // namespace testing
// The case where absl is configured NOT to alias std::string_view is not
// supported.
# endif // __has_include(<string_view>) && __cplusplus >= 201703L
# endif // __has_include
#endif // GTEST_HAS_ABSL
#if GTEST_HAS_ABSL
// Always use absl::variant for UniversalPrinter<> specializations if googletest
// is built with absl support.
#define GTEST_INTERNAL_HAS_VARIANT 1
#include "absl/types/variant.h"
namespace testing {
namespace internal {
template <typename... T>
using Variant = ::absl::variant<T...>;
} // namespace internal
} // namespace testing
#else
#ifdef __has_include
#if __has_include(<variant>) && __cplusplus >= 201703L
// Otherwise for C++17 and higher use std::variant for UniversalPrinter<>
// specializations.
#define GTEST_INTERNAL_HAS_VARIANT 1
#include <variant>
namespace testing {
namespace internal {
template <typename... T>
using Variant = ::std::variant<T...>;
} // namespace internal
} // namespace testing
// The case where absl is configured NOT to alias std::variant is not supported.
#endif // __has_include(<variant>) && __cplusplus >= 201703L
#endif // __has_include
#endif // GTEST_HAS_ABSL
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
#if GTEST_OS_LINUX
# include <stdlib.h>
# include <sys/types.h>
# include <sys/wait.h>
# include <unistd.h>
#endif // GTEST_OS_LINUX
#if GTEST_HAS_EXCEPTIONS
# include <stdexcept>
#endif
#include <ctype.h>
#include <float.h>
#include <string.h>
#include <cstdint>
#include <iomanip>
#include <limits>
#include <map>
#include <set>
#include <string>
#include <type_traits>
#include <vector>
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file defines the Message class.
//
// IMPORTANT NOTE: Due to limitation of the C++ language, we have to
// leave some internal implementation details in this header file.
// They are clearly marked by comments like this:
//
// // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
//
// Such code is NOT meant to be used by a user directly, and is subject
// to CHANGE WITHOUT NOTICE. Therefore DO NOT DEPEND ON IT in a user
// program!
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
#include <limits>
#include <memory>
#include <sstream>
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
// Ensures that there is at least one operator<< in the global namespace.
// See Message& operator<<(...) below for why.
void operator<<(const testing::internal::Secret&, int);
namespace testing {
// The Message class works like an ostream repeater.
//
// Typical usage:
//
// 1. You stream a bunch of values to a Message object.
// It will remember the text in a stringstream.
// 2. Then you stream the Message object to an ostream.
// This causes the text in the Message to be streamed
// to the ostream.
//
// For example;
//
// testing::Message foo;
// foo << 1 << " != " << 2;
// std::cout << foo;
//
// will print "1 != 2".
//
// Message is not intended to be inherited from. In particular, its
// destructor is not virtual.
//
// Note that stringstream behaves differently in gcc and in MSVC. You
// can stream a NULL char pointer to it in the former, but not in the
// latter (it causes an access violation if you do). The Message
// class hides this difference by treating a NULL char pointer as
// "(null)".
class GTEST_API_ Message {
private:
// The type of basic IO manipulators (endl, ends, and flush) for
// narrow streams.
typedef std::ostream& (*BasicNarrowIoManip)(std::ostream&);
public:
// Constructs an empty Message.
Message();
// Copy constructor.
Message(const Message& msg) : ss_(new ::std::stringstream) { // NOLINT
*ss_ << msg.GetString();
}
// Constructs a Message from a C-string.
explicit Message(const char* str) : ss_(new ::std::stringstream) {
*ss_ << str;
}
// Streams a non-pointer value to this object.
template <typename T>
inline Message& operator <<(const T& val) {
// Some libraries overload << for STL containers. These
// overloads are defined in the global namespace instead of ::std.
//
// C++'s symbol lookup rule (i.e. Koenig lookup) says that these
// overloads are visible in either the std namespace or the global
// namespace, but not other namespaces, including the testing
// namespace which Google Test's Message class is in.
//
// To allow STL containers (and other types that has a << operator
// defined in the global namespace) to be used in Google Test
// assertions, testing::Message must access the custom << operator
// from the global namespace. With this using declaration,
// overloads of << defined in the global namespace and those
// visible via Koenig lookup are both exposed in this function.
using ::operator <<;
*ss_ << val;
return *this;
}
// Streams a pointer value to this object.
//
// This function is an overload of the previous one. When you
// stream a pointer to a Message, this definition will be used as it
// is more specialized. (The C++ Standard, section
// [temp.func.order].) If you stream a non-pointer, then the
// previous definition will be used.
//
// The reason for this overload is that streaming a NULL pointer to
// ostream is undefined behavior. Depending on the compiler, you
// may get "0", "(nil)", "(null)", or an access violation. To
// ensure consistent result across compilers, we always treat NULL
// as "(null)".
template <typename T>
inline Message& operator <<(T* const& pointer) { // NOLINT
if (pointer == nullptr) {
*ss_ << "(null)";
} else {
*ss_ << pointer;
}
return *this;
}
// Since the basic IO manipulators are overloaded for both narrow
// and wide streams, we have to provide this specialized definition
// of operator <<, even though its body is the same as the
// templatized version above. Without this definition, streaming
// endl or other basic IO manipulators to Message will confuse the
// compiler.
Message& operator <<(BasicNarrowIoManip val) {
*ss_ << val;
return *this;
}
// Instead of 1/0, we want to see true/false for bool values.
Message& operator <<(bool b) {
return *this << (b ? "true" : "false");
}
// These two overloads allow streaming a wide C string to a Message
// using the UTF-8 encoding.
Message& operator <<(const wchar_t* wide_c_str);
Message& operator <<(wchar_t* wide_c_str);
#if GTEST_HAS_STD_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& operator <<(const ::std::wstring& wstr);
#endif // GTEST_HAS_STD_WSTRING
// Gets the text streamed to this object so far as an std::string.
// Each '\0' character in the buffer is replaced with "\\0".
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
std::string GetString() const;
private:
// We'll hold the text streamed to this object here.
const std::unique_ptr< ::std::stringstream> ss_;
// We declare (but don't implement) this to prevent the compiler
// from implementing the assignment operator.
void operator=(const Message&);
};
// Streams a Message to an ostream.
inline std::ostream& operator <<(std::ostream& os, const Message& sb) {
return os << sb.GetString();
}
namespace internal {
// Converts a streamable value to an std::string. A NULL pointer is
// converted to "(null)". When the input value is a ::string,
// ::std::string, ::wstring, or ::std::wstring object, each NUL
// character in it is replaced with "\\0".
template <typename T>
std::string StreamableToString(const T& streamable) {
return (Message() << streamable).GetString();
}
} // namespace internal
} // namespace testing
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Google Test filepath utilities
//
// This header file declares classes and functions used internally by
// Google Test. They are subject to change without notice.
//
// This file is #included in gtest/internal/gtest-internal.h.
// Do not include this header file separately!
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file declares the String class and functions used internally by
// Google Test. They are subject to change without notice. They should not used
// by code external to Google Test.
//
// This header file is #included by gtest-internal.h.
// It should not be #included by other files.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
#ifdef __BORLANDC__
// string.h is not guaranteed to provide strcpy on C++ Builder.
# include <mem.h>
#endif
#include <string.h>
#include <cstdint>
#include <string>
namespace testing {
namespace internal {
// String - an abstract class holding static string utilities.
class GTEST_API_ String {
public:
// Static utility methods
// Clones a 0-terminated C string, allocating memory using new. The
// caller is responsible for deleting the return value using
// delete[]. Returns the cloned string, or NULL if the input is
// NULL.
//
// This is different from strdup() in string.h, which allocates
// memory using malloc().
static const char* CloneCString(const char* c_str);
#if GTEST_OS_WINDOWS_MOBILE
// Windows CE does not have the 'ANSI' versions of Win32 APIs. To be
// able to pass strings to Win32 APIs on CE we need to convert them
// to 'Unicode', UTF-16.
// Creates a UTF-16 wide string from the given ANSI string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the wide string, or NULL if the
// input is NULL.
//
// The wide string is created using the ANSI codepage (CP_ACP) to
// match the behaviour of the ANSI versions of Win32 calls and the
// C runtime.
static LPCWSTR AnsiToUtf16(const char* c_str);
// Creates an ANSI string from the given wide string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the ANSI string, or NULL if the
// input is NULL.
//
// The returned string is created using the ANSI codepage (CP_ACP) to
// match the behaviour of the ANSI versions of Win32 calls and the
// C runtime.
static const char* Utf16ToAnsi(LPCWSTR utf16_str);
#endif
// Compares two C strings. Returns true if and only if they have the same
// content.
//
// Unlike strcmp(), this function can handle NULL argument(s). A
// NULL C string is considered different to any non-NULL C string,
// including the empty string.
static bool CStringEquals(const char* lhs, const char* rhs);
// Converts a wide C string to a String using the UTF-8 encoding.
// NULL will be converted to "(null)". If an error occurred during
// the conversion, "(failed to convert from wide string)" is
// returned.
static std::string ShowWideCString(const wchar_t* wide_c_str);
// Compares two wide C strings. Returns true if and only if they have the
// same content.
//
// Unlike wcscmp(), this function can handle NULL argument(s). A
// NULL C string is considered different to any non-NULL C string,
// including the empty string.
static bool WideCStringEquals(const wchar_t* lhs, const wchar_t* rhs);
// Compares two C strings, ignoring case. Returns true if and only if
// they have the same content.
//
// Unlike strcasecmp(), this function can handle NULL argument(s).
// A NULL C string is considered different to any non-NULL C string,
// including the empty string.
static bool CaseInsensitiveCStringEquals(const char* lhs,
const char* rhs);
// Compares two wide C strings, ignoring case. Returns true if and only if
// they have the same content.
//
// Unlike wcscasecmp(), this function can handle NULL argument(s).
// A NULL C string is considered different to any non-NULL wide C string,
// including the empty string.
// NB: The implementations on different platforms slightly differ.
// On windows, this method uses _wcsicmp which compares according to LC_CTYPE
// environment variable. On GNU platform this method uses wcscasecmp
// which compares according to LC_CTYPE category of the current locale.
// On MacOS X, it uses towlower, which also uses LC_CTYPE category of the
// current locale.
static bool CaseInsensitiveWideCStringEquals(const wchar_t* lhs,
const wchar_t* rhs);
// Returns true if and only if the given string ends with the given suffix,
// ignoring case. Any string is considered to end with an empty suffix.
static bool EndsWithCaseInsensitive(
const std::string& str, const std::string& suffix);
// Formats an int value as "%02d".
static std::string FormatIntWidth2(int value); // "%02d" for width == 2
// Formats an int value to given width with leading zeros.
static std::string FormatIntWidthN(int value, int width);
// Formats an int value as "%X".
static std::string FormatHexInt(int value);
// Formats an int value as "%X".
static std::string FormatHexUInt32(uint32_t value);
// Formats a byte as "%02X".
static std::string FormatByte(unsigned char value);
private:
String(); // Not meant to be instantiated.
}; // class String
// Gets the content of the stringstream's buffer as an std::string. Each '\0'
// character in the buffer is replaced with "\\0".
GTEST_API_ std::string StringStreamToString(::std::stringstream* stream);
} // namespace internal
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
namespace testing {
namespace internal {
// FilePath - a class for file and directory pathname manipulation which
// handles platform-specific conventions (like the pathname separator).
// Used for helper functions for naming files in a directory for xml output.
// Except for Set methods, all methods are const or static, which provides an
// "immutable value object" -- useful for peace of mind.
// A FilePath with a value ending in a path separator ("like/this/") represents
// a directory, otherwise it is assumed to represent a file. In either case,
// it may or may not represent an actual file or directory in the file system.
// Names are NOT checked for syntax correctness -- no checking for illegal
// characters, malformed paths, etc.
class GTEST_API_ FilePath {
public:
FilePath() : pathname_("") { }
FilePath(const FilePath& rhs) : pathname_(rhs.pathname_) { }
explicit FilePath(const std::string& pathname) : pathname_(pathname) {
Normalize();
}
FilePath& operator=(const FilePath& rhs) {
Set(rhs);
return *this;
}
void Set(const FilePath& rhs) {
pathname_ = rhs.pathname_;
}
const std::string& string() const { return pathname_; }
const char* c_str() const { return pathname_.c_str(); }
// Returns the current working directory, or "" if unsuccessful.
static FilePath GetCurrentDir();
// Given directory = "dir", base_name = "test", number = 0,
// extension = "xml", returns "dir/test.xml". If number is greater
// than zero (e.g., 12), returns "dir/test_12.xml".
// On Windows platform, uses \ as the separator rather than /.
static FilePath MakeFileName(const FilePath& directory,
const FilePath& base_name,
int number,
const char* extension);
// Given directory = "dir", relative_path = "test.xml",
// returns "dir/test.xml".
// On Windows, uses \ as the separator rather than /.
static FilePath ConcatPaths(const FilePath& directory,
const FilePath& relative_path);
// Returns a pathname for a file that does not currently exist. The pathname
// will be directory/base_name.extension or
// directory/base_name_<number>.extension if directory/base_name.extension
// already exists. The number will be incremented until a pathname is found
// that does not already exist.
// Examples: 'dir/foo_test.xml' or 'dir/foo_test_1.xml'.
// There could be a race condition if two or more processes are calling this
// function at the same time -- they could both pick the same filename.
static FilePath GenerateUniqueFileName(const FilePath& directory,
const FilePath& base_name,
const char* extension);
// Returns true if and only if the path is "".
bool IsEmpty() const { return pathname_.empty(); }
// If input name has a trailing separator character, removes it and returns
// the name, otherwise return the name string unmodified.
// On Windows platform, uses \ as the separator, other platforms use /.
FilePath RemoveTrailingPathSeparator() const;
// Returns a copy of the FilePath with the directory part removed.
// Example: FilePath("path/to/file").RemoveDirectoryName() returns
// FilePath("file"). If there is no directory part ("just_a_file"), it returns
// the FilePath unmodified. If there is no file part ("just_a_dir/") it
// returns an empty FilePath ("").
// On Windows platform, '\' is the path separator, otherwise it is '/'.
FilePath RemoveDirectoryName() const;
// RemoveFileName returns the directory path with the filename removed.
// Example: FilePath("path/to/file").RemoveFileName() returns "path/to/".
// If the FilePath is "a_file" or "/a_file", RemoveFileName returns
// FilePath("./") or, on Windows, FilePath(".\\"). If the filepath does
// not have a file, like "just/a/dir/", it returns the FilePath unmodified.
// On Windows platform, '\' is the path separator, otherwise it is '/'.
FilePath RemoveFileName() const;
// Returns a copy of the FilePath with the case-insensitive extension removed.
// Example: FilePath("dir/file.exe").RemoveExtension("EXE") returns
// FilePath("dir/file"). If a case-insensitive extension is not
// found, returns a copy of the original FilePath.
FilePath RemoveExtension(const char* extension) const;
// Creates directories so that path exists. Returns true if successful or if
// the directories already exist; returns false if unable to create
// directories for any reason. Will also return false if the FilePath does
// not represent a directory (that is, it doesn't end with a path separator).
bool CreateDirectoriesRecursively() const;
// Create the directory so that path exists. Returns true if successful or
// if the directory already exists; returns false if unable to create the
// directory for any reason, including if the parent directory does not
// exist. Not named "CreateDirectory" because that's a macro on Windows.
bool CreateFolder() const;
// Returns true if FilePath describes something in the file-system,
// either a file, directory, or whatever, and that something exists.
bool FileOrDirectoryExists() const;
// Returns true if pathname describes a directory in the file-system
// that exists.
bool DirectoryExists() const;
// Returns true if FilePath ends with a path separator, which indicates that
// it is intended to represent a directory. Returns false otherwise.
// This does NOT check that a directory (or file) actually exists.
bool IsDirectory() const;
// Returns true if pathname describes a root directory. (Windows has one
// root directory per disk drive.)
bool IsRootDirectory() const;
// Returns true if pathname describes an absolute path.
bool IsAbsolutePath() const;
private:
// Replaces multiple consecutive separators with a single separator.
// For example, "bar///foo" becomes "bar/foo". Does not eliminate other
// redundancies that might be in a pathname involving "." or "..".
//
// A pathname with multiple consecutive separators may occur either through
// user error or as a result of some scripts or APIs that generate a pathname
// with a trailing separator. On other platforms the same API or script
// may NOT generate a pathname with a trailing "/". Then elsewhere that
// pathname may have another "/" and pathname components added to it,
// without checking for the separator already being there.
// The script language and operating system may allow paths like "foo//bar"
// but some of the functions in FilePath will not handle that correctly. In
// particular, RemoveTrailingPathSeparator() only removes one separator, and
// it is called in CreateDirectoriesRecursively() assuming that it will change
// a pathname from directory syntax (trailing separator) to filename syntax.
//
// On Windows this method also replaces the alternate path separator '/' with
// the primary path separator '\\', so that for example "bar\\/\\foo" becomes
// "bar\\foo".
void Normalize();
// Returns a pointer to the last occurrence of a valid path separator in
// the FilePath. On Windows, for example, both '/' and '\' are valid path
// separators. Returns NULL if no path separator was found.
const char* FindLastPathSeparator() const;
std::string pathname_;
}; // class FilePath
} // namespace internal
} // namespace testing
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
// Copyright 2008 Google Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Type utilities needed for implementing typed and type-parameterized
// tests.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
// #ifdef __GNUC__ is too general here. It is possible to use gcc without using
// libstdc++ (which is where cxxabi.h comes from).
# if GTEST_HAS_CXXABI_H_
# include <cxxabi.h>
# elif defined(__HP_aCC)
# include <acxx_demangle.h>
# endif // GTEST_HASH_CXXABI_H_
namespace testing {
namespace internal {
// Canonicalizes a given name with respect to the Standard C++ Library.
// This handles removing the inline namespace within `std` that is
// used by various standard libraries (e.g., `std::__1`). Names outside
// of namespace std are returned unmodified.
inline std::string CanonicalizeForStdLibVersioning(std::string s) {
static const char prefix[] = "std::__";
if (s.compare(0, strlen(prefix), prefix) == 0) {
std::string::size_type end = s.find("::", strlen(prefix));
if (end != s.npos) {
// Erase everything between the initial `std` and the second `::`.
s.erase(strlen("std"), end - strlen("std"));
}
}
return s;
}
#if GTEST_HAS_RTTI
// GetTypeName(const std::type_info&) returns a human-readable name of type T.
inline std::string GetTypeName(const std::type_info& type) {
const char* const name = type.name();
#if GTEST_HAS_CXXABI_H_ || defined(__HP_aCC)
int status = 0;
// gcc's implementation of typeid(T).name() mangles the type name,
// so we have to demangle it.
#if GTEST_HAS_CXXABI_H_
using abi::__cxa_demangle;
#endif // GTEST_HAS_CXXABI_H_
char* const readable_name = __cxa_demangle(name, nullptr, nullptr, &status);
const std::string name_str(status == 0 ? readable_name : name);
free(readable_name);
return CanonicalizeForStdLibVersioning(name_str);
#else
return name;
#endif // GTEST_HAS_CXXABI_H_ || __HP_aCC
}
#endif // GTEST_HAS_RTTI
// GetTypeName<T>() returns a human-readable name of type T if and only if
// RTTI is enabled, otherwise it returns a dummy type name.
// NB: This function is also used in Google Mock, so don't move it inside of
// the typed-test-only section below.
template <typename T>
std::string GetTypeName() {
#if GTEST_HAS_RTTI
return GetTypeName(typeid(T));
#else
return "<type>";
#endif // GTEST_HAS_RTTI
}
// A unique type indicating an empty node
struct None {};
# define GTEST_TEMPLATE_ template <typename T> class
// The template "selector" struct TemplateSel<Tmpl> is used to
// represent Tmpl, which must be a class template with one type
// parameter, as a type. TemplateSel<Tmpl>::Bind<T>::type is defined
// as the type Tmpl<T>. This allows us to actually instantiate the
// template "selected" by TemplateSel<Tmpl>.
//
// This trick is necessary for simulating typedef for class templates,
// which C++ doesn't support directly.
template <GTEST_TEMPLATE_ Tmpl>
struct TemplateSel {
template <typename T>
struct Bind {
typedef Tmpl<T> type;
};
};
# define GTEST_BIND_(TmplSel, T) \
TmplSel::template Bind<T>::type
template <GTEST_TEMPLATE_ Head_, GTEST_TEMPLATE_... Tail_>
struct Templates {
using Head = TemplateSel<Head_>;
using Tail = Templates<Tail_...>;
};
template <GTEST_TEMPLATE_ Head_>
struct Templates<Head_> {
using Head = TemplateSel<Head_>;
using Tail = None;
};
// Tuple-like type lists
template <typename Head_, typename... Tail_>
struct Types {
using Head = Head_;
using Tail = Types<Tail_...>;
};
template <typename Head_>
struct Types<Head_> {
using Head = Head_;
using Tail = None;
};
// Helper metafunctions to tell apart a single type from types
// generated by ::testing::Types
template <typename... Ts>
struct ProxyTypeList {
using type = Types<Ts...>;
};
template <typename>
struct is_proxy_type_list : std::false_type {};
template <typename... Ts>
struct is_proxy_type_list<ProxyTypeList<Ts...>> : std::true_type {};
// Generator which conditionally creates type lists.
// It recognizes if a requested type list should be created
// and prevents creating a new type list nested within another one.
template <typename T>
struct GenerateTypeList {
private:
using proxy = typename std::conditional<is_proxy_type_list<T>::value, T,
ProxyTypeList<T>>::type;
public:
using type = typename proxy::type;
};
} // namespace internal
template <typename... Ts>
using Types = internal::ProxyTypeList<Ts...>;
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
// Due to C++ preprocessor weirdness, we need double indirection to
// concatenate two tokens when one of them is __LINE__. Writing
//
// foo ## __LINE__
//
// will result in the token foo__LINE__, instead of foo followed by
// the current line number. For more details, see
// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6
#define GTEST_CONCAT_TOKEN_(foo, bar) GTEST_CONCAT_TOKEN_IMPL_(foo, bar)
#define GTEST_CONCAT_TOKEN_IMPL_(foo, bar) foo ## bar
// Stringifies its argument.
// Work around a bug in visual studio which doesn't accept code like this:
//
// #define GTEST_STRINGIFY_(name) #name
// #define MACRO(a, b, c) ... GTEST_STRINGIFY_(a) ...
// MACRO(, x, y)
//
// Complaining about the argument to GTEST_STRINGIFY_ being empty.
// This is allowed by the spec.
#define GTEST_STRINGIFY_HELPER_(name, ...) #name
#define GTEST_STRINGIFY_(...) GTEST_STRINGIFY_HELPER_(__VA_ARGS__, )
namespace proto2 {
class MessageLite;
}
namespace testing {
// Forward declarations.
class AssertionResult; // Result of an assertion.
class Message; // Represents a failure message.
class Test; // Represents a test.
class TestInfo; // Information about a test.
class TestPartResult; // Result of a test part.
class UnitTest; // A collection of test suites.
template <typename T>
::std::string PrintToString(const T& value);
namespace internal {
struct TraceInfo; // Information about a trace point.
class TestInfoImpl; // Opaque implementation of TestInfo
class UnitTestImpl; // Opaque implementation of UnitTest
// The text used in failure messages to indicate the start of the
// stack trace.
GTEST_API_ extern const char kStackTraceMarker[];
// An IgnoredValue object can be implicitly constructed from ANY value.
class IgnoredValue {
struct Sink {};
public:
// This constructor template allows any value to be implicitly
// converted to IgnoredValue. The object has no data member and
// doesn't try to remember anything about the argument. We
// deliberately omit the 'explicit' keyword in order to allow the
// conversion to be implicit.
// Disable the conversion if T already has a magical conversion operator.
// Otherwise we get ambiguity.
template <typename T,
typename std::enable_if<!std::is_convertible<T, Sink>::value,
int>::type = 0>
IgnoredValue(const T& /* ignored */) {} // NOLINT(runtime/explicit)
};
// Appends the user-supplied message to the Google-Test-generated message.
GTEST_API_ std::string AppendUserMessage(
const std::string& gtest_msg, const Message& user_msg);
#if GTEST_HAS_EXCEPTIONS
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4275 \
/* an exported class was derived from a class that was not exported */)
// This exception is thrown by (and only by) a failed Google Test
// assertion when GTEST_FLAG(throw_on_failure) is true (if exceptions
// are enabled). We derive it from std::runtime_error, which is for
// errors presumably detectable only at run time. Since
// std::runtime_error inherits from std::exception, many testing
// frameworks know how to extract and print the message inside it.
class GTEST_API_ GoogleTestFailureException : public ::std::runtime_error {
public:
explicit GoogleTestFailureException(const TestPartResult& failure);
};
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4275
#endif // GTEST_HAS_EXCEPTIONS
namespace edit_distance {
// Returns the optimal edits to go from 'left' to 'right'.
// All edits cost the same, with replace having lower priority than
// add/remove.
// Simple implementation of the Wagner-Fischer algorithm.
// See http://en.wikipedia.org/wiki/Wagner-Fischer_algorithm
enum EditType { kMatch, kAdd, kRemove, kReplace };
GTEST_API_ std::vector<EditType> CalculateOptimalEdits(
const std::vector<size_t>& left, const std::vector<size_t>& right);
// Same as above, but the input is represented as strings.
GTEST_API_ std::vector<EditType> CalculateOptimalEdits(
const std::vector<std::string>& left,
const std::vector<std::string>& right);
// Create a diff of the input strings in Unified diff format.
GTEST_API_ std::string CreateUnifiedDiff(const std::vector<std::string>& left,
const std::vector<std::string>& right,
size_t context = 2);
} // namespace edit_distance
// Calculate the diff between 'left' and 'right' and return it in unified diff
// format.
// If not null, stores in 'total_line_count' the total number of lines found
// in left + right.
GTEST_API_ std::string DiffStrings(const std::string& left,
const std::string& right,
size_t* total_line_count);
// Constructs and returns the message for an equality assertion
// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
//
// The first four parameters are the expressions used in the assertion
// and their values, as strings. For example, for ASSERT_EQ(foo, bar)
// where foo is 5 and bar is 6, we have:
//
// expected_expression: "foo"
// actual_expression: "bar"
// expected_value: "5"
// actual_value: "6"
//
// The ignoring_case parameter is true if and only if the assertion is a
// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will
// be inserted into the message.
GTEST_API_ AssertionResult EqFailure(const char* expected_expression,
const char* actual_expression,
const std::string& expected_value,
const std::string& actual_value,
bool ignoring_case);
// Constructs a failure message for Boolean assertions such as EXPECT_TRUE.
GTEST_API_ std::string GetBoolAssertionFailureMessage(
const AssertionResult& assertion_result,
const char* expression_text,
const char* actual_predicate_value,
const char* expected_predicate_value);
// This template class represents an IEEE floating-point number
// (either single-precision or double-precision, depending on the
// template parameters).
//
// The purpose of this class is to do more sophisticated number
// comparison. (Due to round-off error, etc, it's very unlikely that
// two floating-points will be equal exactly. Hence a naive
// comparison by the == operation often doesn't work.)
//
// Format of IEEE floating-point:
//
// The most-significant bit being the leftmost, an IEEE
// floating-point looks like
//
// sign_bit exponent_bits fraction_bits
//
// Here, sign_bit is a single bit that designates the sign of the
// number.
//
// For float, there are 8 exponent bits and 23 fraction bits.
//
// For double, there are 11 exponent bits and 52 fraction bits.
//
// More details can be found at
// http://en.wikipedia.org/wiki/IEEE_floating-point_standard.
//
// Template parameter:
//
// RawType: the raw floating-point type (either float or double)
template <typename RawType>
class FloatingPoint {
public:
// Defines the unsigned integer type that has the same size as the
// floating point number.
typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits;
// Constants.
// # of bits in a number.
static const size_t kBitCount = 8*sizeof(RawType);
// # of fraction bits in a number.
static const size_t kFractionBitCount =
std::numeric_limits<RawType>::digits - 1;
// # of exponent bits in a number.
static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount;
// The mask for the sign bit.
static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1);
// The mask for the fraction bits.
static const Bits kFractionBitMask =
~static_cast<Bits>(0) >> (kExponentBitCount + 1);
// The mask for the exponent bits.
static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask);
// How many ULP's (Units in the Last Place) we want to tolerate when
// comparing two numbers. The larger the value, the more error we
// allow. A 0 value means that two numbers must be exactly the same
// to be considered equal.
//
// The maximum error of a single floating-point operation is 0.5
// units in the last place. On Intel CPU's, all floating-point
// calculations are done with 80-bit precision, while double has 64
// bits. Therefore, 4 should be enough for ordinary use.
//
// See the following article for more details on ULP:
// http://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
static const uint32_t kMaxUlps = 4;
// Constructs a FloatingPoint from a raw floating-point number.
//
// On an Intel CPU, passing a non-normalized NAN (Not a Number)
// around may change its bits, although the new value is guaranteed
// to be also a NAN. Therefore, don't expect this constructor to
// preserve the bits in x when x is a NAN.
explicit FloatingPoint(const RawType& x) { u_.value_ = x; }
// Static methods
// Reinterprets a bit pattern as a floating-point number.
//
// This function is needed to test the AlmostEquals() method.
static RawType ReinterpretBits(const Bits bits) {
FloatingPoint fp(0);
fp.u_.bits_ = bits;
return fp.u_.value_;
}
// Returns the floating-point number that represent positive infinity.
static RawType Infinity() {
return ReinterpretBits(kExponentBitMask);
}
// Returns the maximum representable finite floating-point number.
static RawType Max();
// Non-static methods
// Returns the bits that represents this number.
const Bits &bits() const { return u_.bits_; }
// Returns the exponent bits of this number.
Bits exponent_bits() const { return kExponentBitMask & u_.bits_; }
// Returns the fraction bits of this number.
Bits fraction_bits() const { return kFractionBitMask & u_.bits_; }
// Returns the sign bit of this number.
Bits sign_bit() const { return kSignBitMask & u_.bits_; }
// Returns true if and only if this is NAN (not a number).
bool is_nan() const {
// It's a NAN if the exponent bits are all ones and the fraction
// bits are not entirely zeros.
return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0);
}
// Returns true if and only if this number is at most kMaxUlps ULP's away
// from rhs. In particular, this function:
//
// - returns false if either number is (or both are) NAN.
// - treats really large numbers as almost equal to infinity.
// - thinks +0.0 and -0.0 are 0 DLP's apart.
bool AlmostEquals(const FloatingPoint& rhs) const {
// The IEEE standard says that any comparison operation involving
// a NAN must return false.
if (is_nan() || rhs.is_nan()) return false;
return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_)
<= kMaxUlps;
}
private:
// The data type used to store the actual floating-point number.
union FloatingPointUnion {
RawType value_; // The raw floating-point number.
Bits bits_; // The bits that represent the number.
};
// Converts an integer from the sign-and-magnitude representation to
// the biased representation. More precisely, let N be 2 to the
// power of (kBitCount - 1), an integer x is represented by the
// unsigned number x + N.
//
// For instance,
//
// -N + 1 (the most negative number representable using
// sign-and-magnitude) is represented by 1;
// 0 is represented by N; and
// N - 1 (the biggest number representable using
// sign-and-magnitude) is represented by 2N - 1.
//
// Read http://en.wikipedia.org/wiki/Signed_number_representations
// for more details on signed number representations.
static Bits SignAndMagnitudeToBiased(const Bits &sam) {
if (kSignBitMask & sam) {
// sam represents a negative number.
return ~sam + 1;
} else {
// sam represents a positive number.
return kSignBitMask | sam;
}
}
// Given two numbers in the sign-and-magnitude representation,
// returns the distance between them as an unsigned number.
static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1,
const Bits &sam2) {
const Bits biased1 = SignAndMagnitudeToBiased(sam1);
const Bits biased2 = SignAndMagnitudeToBiased(sam2);
return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1);
}
FloatingPointUnion u_;
};
// We cannot use std::numeric_limits<T>::max() as it clashes with the max()
// macro defined by <windows.h>.
template <>
inline float FloatingPoint<float>::Max() { return FLT_MAX; }
template <>
inline double FloatingPoint<double>::Max() { return DBL_MAX; }
// Typedefs the instances of the FloatingPoint template class that we
// care to use.
typedef FloatingPoint<float> Float;
typedef FloatingPoint<double> Double;
// In order to catch the mistake of putting tests that use different
// test fixture classes in the same test suite, we need to assign
// unique IDs to fixture classes and compare them. The TypeId type is
// used to hold such IDs. The user should treat TypeId as an opaque
// type: the only operation allowed on TypeId values is to compare
// them for equality using the == operator.
typedef const void* TypeId;
template <typename T>
class TypeIdHelper {
public:
// dummy_ must not have a const type. Otherwise an overly eager
// compiler (e.g. MSVC 7.1 & 8.0) may try to merge
// TypeIdHelper<T>::dummy_ for different Ts as an "optimization".
static bool dummy_;
};
template <typename T>
bool TypeIdHelper<T>::dummy_ = false;
// GetTypeId<T>() returns the ID of type T. Different values will be
// returned for different types. Calling the function twice with the
// same type argument is guaranteed to return the same ID.
template <typename T>
TypeId GetTypeId() {
// The compiler is required to allocate a different
// TypeIdHelper<T>::dummy_ variable for each T used to instantiate
// the template. Therefore, the address of dummy_ is guaranteed to
// be unique.
return &(TypeIdHelper<T>::dummy_);
}
// Returns the type ID of ::testing::Test. Always call this instead
// of GetTypeId< ::testing::Test>() to get the type ID of
// ::testing::Test, as the latter may give the wrong result due to a
// suspected linker bug when compiling Google Test as a Mac OS X
// framework.
GTEST_API_ TypeId GetTestTypeId();
// Defines the abstract factory interface that creates instances
// of a Test object.
class TestFactoryBase {
public:
virtual ~TestFactoryBase() {}
// Creates a test instance to run. The instance is both created and destroyed
// within TestInfoImpl::Run()
virtual Test* CreateTest() = 0;
protected:
TestFactoryBase() {}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestFactoryBase);
};
// This class provides implementation of TeastFactoryBase interface.
// It is used in TEST and TEST_F macros.
template <class TestClass>
class TestFactoryImpl : public TestFactoryBase {
public:
Test* CreateTest() override { return new TestClass; }
};
#if GTEST_OS_WINDOWS
// Predicate-formatters for implementing the HRESULT checking macros
// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}
// We pass a long instead of HRESULT to avoid causing an
// include dependency for the HRESULT type.
GTEST_API_ AssertionResult IsHRESULTSuccess(const char* expr,
long hr); // NOLINT
GTEST_API_ AssertionResult IsHRESULTFailure(const char* expr,
long hr); // NOLINT
#endif // GTEST_OS_WINDOWS
// Types of SetUpTestSuite() and TearDownTestSuite() functions.
using SetUpTestSuiteFunc = void (*)();
using TearDownTestSuiteFunc = void (*)();
struct CodeLocation {
CodeLocation(const std::string& a_file, int a_line)
: file(a_file), line(a_line) {}
std::string file;
int line;
};
// Helper to identify which setup function for TestCase / TestSuite to call.
// Only one function is allowed, either TestCase or TestSute but not both.
// Utility functions to help SuiteApiResolver
using SetUpTearDownSuiteFuncType = void (*)();
inline SetUpTearDownSuiteFuncType GetNotDefaultOrNull(
SetUpTearDownSuiteFuncType a, SetUpTearDownSuiteFuncType def) {
return a == def ? nullptr : a;
}
template <typename T>
// Note that SuiteApiResolver inherits from T because
// SetUpTestSuite()/TearDownTestSuite() could be protected. Ths way
// SuiteApiResolver can access them.
struct SuiteApiResolver : T {
// testing::Test is only forward declared at this point. So we make it a
// dependend class for the compiler to be OK with it.
using Test =
typename std::conditional<sizeof(T) != 0, ::testing::Test, void>::type;
static SetUpTearDownSuiteFuncType GetSetUpCaseOrSuite(const char* filename,
int line_num) {
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
SetUpTearDownSuiteFuncType test_case_fp =
GetNotDefaultOrNull(&T::SetUpTestCase, &Test::SetUpTestCase);
SetUpTearDownSuiteFuncType test_suite_fp =
GetNotDefaultOrNull(&T::SetUpTestSuite, &Test::SetUpTestSuite);
GTEST_CHECK_(!test_case_fp || !test_suite_fp)
<< "Test can not provide both SetUpTestSuite and SetUpTestCase, please "
"make sure there is only one present at "
<< filename << ":" << line_num;
return test_case_fp != nullptr ? test_case_fp : test_suite_fp;
#else
(void)(filename);
(void)(line_num);
return &T::SetUpTestSuite;
#endif
}
static SetUpTearDownSuiteFuncType GetTearDownCaseOrSuite(const char* filename,
int line_num) {
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
SetUpTearDownSuiteFuncType test_case_fp =
GetNotDefaultOrNull(&T::TearDownTestCase, &Test::TearDownTestCase);
SetUpTearDownSuiteFuncType test_suite_fp =
GetNotDefaultOrNull(&T::TearDownTestSuite, &Test::TearDownTestSuite);
GTEST_CHECK_(!test_case_fp || !test_suite_fp)
<< "Test can not provide both TearDownTestSuite and TearDownTestCase,"
" please make sure there is only one present at"
<< filename << ":" << line_num;
return test_case_fp != nullptr ? test_case_fp : test_suite_fp;
#else
(void)(filename);
(void)(line_num);
return &T::TearDownTestSuite;
#endif
}
};
// Creates a new TestInfo object and registers it with Google Test;
// returns the created object.
//
// Arguments:
//
// test_suite_name: name of the test suite
// name: name of the test
// type_param: the name of the test's type parameter, or NULL if
// this is not a typed or a type-parameterized test.
// value_param: text representation of the test's value parameter,
// or NULL if this is not a type-parameterized test.
// code_location: code location where the test is defined
// fixture_class_id: ID of the test fixture class
// set_up_tc: pointer to the function that sets up the test suite
// tear_down_tc: pointer to the function that tears down the test suite
// factory: pointer to the factory that creates a test object.
// The newly created TestInfo instance will assume
// ownership of the factory object.
GTEST_API_ TestInfo* MakeAndRegisterTestInfo(
const char* test_suite_name, const char* name, const char* type_param,
const char* value_param, CodeLocation code_location,
TypeId fixture_class_id, SetUpTestSuiteFunc set_up_tc,
TearDownTestSuiteFunc tear_down_tc, TestFactoryBase* factory);
// If *pstr starts with the given prefix, modifies *pstr to be right
// past the prefix and returns true; otherwise leaves *pstr unchanged
// and returns false. None of pstr, *pstr, and prefix can be NULL.
GTEST_API_ bool SkipPrefix(const char* prefix, const char** pstr);
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
// State of the definition of a type-parameterized test suite.
class GTEST_API_ TypedTestSuitePState {
public:
TypedTestSuitePState() : registered_(false) {}
// Adds the given test name to defined_test_names_ and return true
// if the test suite hasn't been registered; otherwise aborts the
// program.
bool AddTestName(const char* file, int line, const char* case_name,
const char* test_name) {
if (registered_) {
fprintf(stderr,
"%s Test %s must be defined before "
"REGISTER_TYPED_TEST_SUITE_P(%s, ...).\n",
FormatFileLocation(file, line).c_str(), test_name, case_name);
fflush(stderr);
posix::Abort();
}
registered_tests_.insert(
::std::make_pair(test_name, CodeLocation(file, line)));
return true;
}
bool TestExists(const std::string& test_name) const {
return registered_tests_.count(test_name) > 0;
}
const CodeLocation& GetCodeLocation(const std::string& test_name) const {
RegisteredTestsMap::const_iterator it = registered_tests_.find(test_name);
GTEST_CHECK_(it != registered_tests_.end());
return it->second;
}
// Verifies that registered_tests match the test names in
// defined_test_names_; returns registered_tests if successful, or
// aborts the program otherwise.
const char* VerifyRegisteredTestNames(const char* test_suite_name,
const char* file, int line,
const char* registered_tests);
private:
typedef ::std::map<std::string, CodeLocation> RegisteredTestsMap;
bool registered_;
RegisteredTestsMap registered_tests_;
};
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
using TypedTestCasePState = TypedTestSuitePState;
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
// Skips to the first non-space char after the first comma in 'str';
// returns NULL if no comma is found in 'str'.
inline const char* SkipComma(const char* str) {
const char* comma = strchr(str, ',');
if (comma == nullptr) {
return nullptr;
}
while (IsSpace(*(++comma))) {}
return comma;
}
// Returns the prefix of 'str' before the first comma in it; returns
// the entire string if it contains no comma.
inline std::string GetPrefixUntilComma(const char* str) {
const char* comma = strchr(str, ',');
return comma == nullptr ? str : std::string(str, comma);
}
// Splits a given string on a given delimiter, populating a given
// vector with the fields.
void SplitString(const ::std::string& str, char delimiter,
::std::vector< ::std::string>* dest);
// The default argument to the template below for the case when the user does
// not provide a name generator.
struct DefaultNameGenerator {
template <typename T>
static std::string GetName(int i) {
return StreamableToString(i);
}
};
template <typename Provided = DefaultNameGenerator>
struct NameGeneratorSelector {
typedef Provided type;
};
template <typename NameGenerator>
void GenerateNamesRecursively(internal::None, std::vector<std::string>*, int) {}
template <typename NameGenerator, typename Types>
void GenerateNamesRecursively(Types, std::vector<std::string>* result, int i) {
result->push_back(NameGenerator::template GetName<typename Types::Head>(i));
GenerateNamesRecursively<NameGenerator>(typename Types::Tail(), result,
i + 1);
}
template <typename NameGenerator, typename Types>
std::vector<std::string> GenerateNames() {
std::vector<std::string> result;
GenerateNamesRecursively<NameGenerator>(Types(), &result, 0);
return result;
}
// TypeParameterizedTest<Fixture, TestSel, Types>::Register()
// registers a list of type-parameterized tests with Google Test. The
// return value is insignificant - we just need to return something
// such that we can call this function in a namespace scope.
//
// Implementation note: The GTEST_TEMPLATE_ macro declares a template
// template parameter. It's defined in gtest-type-util.h.
template <GTEST_TEMPLATE_ Fixture, class TestSel, typename Types>
class TypeParameterizedTest {
public:
// 'index' is the index of the test in the type list 'Types'
// specified in INSTANTIATE_TYPED_TEST_SUITE_P(Prefix, TestSuite,
// Types). Valid values for 'index' are [0, N - 1] where N is the
// length of Types.
static bool Register(const char* prefix, const CodeLocation& code_location,
const char* case_name, const char* test_names, int index,
const std::vector<std::string>& type_names =
GenerateNames<DefaultNameGenerator, Types>()) {
typedef typename Types::Head Type;
typedef Fixture<Type> FixtureClass;
typedef typename GTEST_BIND_(TestSel, Type) TestClass;
// First, registers the first type-parameterized test in the type
// list.
MakeAndRegisterTestInfo(
(std::string(prefix) + (prefix[0] == '\0' ? "" : "/") + case_name +
"/" + type_names[static_cast<size_t>(index)])
.c_str(),
StripTrailingSpaces(GetPrefixUntilComma(test_names)).c_str(),
GetTypeName<Type>().c_str(),
nullptr, // No value parameter.
code_location, GetTypeId<FixtureClass>(),
SuiteApiResolver<TestClass>::GetSetUpCaseOrSuite(
code_location.file.c_str(), code_location.line),
SuiteApiResolver<TestClass>::GetTearDownCaseOrSuite(
code_location.file.c_str(), code_location.line),
new TestFactoryImpl<TestClass>);
// Next, recurses (at compile time) with the tail of the type list.
return TypeParameterizedTest<Fixture, TestSel,
typename Types::Tail>::Register(prefix,
code_location,
case_name,
test_names,
index + 1,
type_names);
}
};
// The base case for the compile time recursion.
template <GTEST_TEMPLATE_ Fixture, class TestSel>
class TypeParameterizedTest<Fixture, TestSel, internal::None> {
public:
static bool Register(const char* /*prefix*/, const CodeLocation&,
const char* /*case_name*/, const char* /*test_names*/,
int /*index*/,
const std::vector<std::string>& =
std::vector<std::string>() /*type_names*/) {
return true;
}
};
GTEST_API_ void RegisterTypeParameterizedTestSuite(const char* test_suite_name,
CodeLocation code_location);
GTEST_API_ void RegisterTypeParameterizedTestSuiteInstantiation(
const char* case_name);
// TypeParameterizedTestSuite<Fixture, Tests, Types>::Register()
// registers *all combinations* of 'Tests' and 'Types' with Google
// Test. The return value is insignificant - we just need to return
// something such that we can call this function in a namespace scope.
template <GTEST_TEMPLATE_ Fixture, typename Tests, typename Types>
class TypeParameterizedTestSuite {
public:
static bool Register(const char* prefix, CodeLocation code_location,
const TypedTestSuitePState* state, const char* case_name,
const char* test_names,
const std::vector<std::string>& type_names =
GenerateNames<DefaultNameGenerator, Types>()) {
RegisterTypeParameterizedTestSuiteInstantiation(case_name);
std::string test_name = StripTrailingSpaces(
GetPrefixUntilComma(test_names));
if (!state->TestExists(test_name)) {
fprintf(stderr, "Failed to get code location for test %s.%s at %s.",
case_name, test_name.c_str(),
FormatFileLocation(code_location.file.c_str(),
code_location.line).c_str());
fflush(stderr);
posix::Abort();
}
const CodeLocation& test_location = state->GetCodeLocation(test_name);
typedef typename Tests::Head Head;
// First, register the first test in 'Test' for each type in 'Types'.
TypeParameterizedTest<Fixture, Head, Types>::Register(
prefix, test_location, case_name, test_names, 0, type_names);
// Next, recurses (at compile time) with the tail of the test list.
return TypeParameterizedTestSuite<Fixture, typename Tests::Tail,
Types>::Register(prefix, code_location,
state, case_name,
SkipComma(test_names),
type_names);
}
};
// The base case for the compile time recursion.
template <GTEST_TEMPLATE_ Fixture, typename Types>
class TypeParameterizedTestSuite<Fixture, internal::None, Types> {
public:
static bool Register(const char* /*prefix*/, const CodeLocation&,
const TypedTestSuitePState* /*state*/,
const char* /*case_name*/, const char* /*test_names*/,
const std::vector<std::string>& =
std::vector<std::string>() /*type_names*/) {
return true;
}
};
// Returns the current OS stack trace as an std::string.
//
// The maximum number of stack frames to be included is specified by
// the gtest_stack_trace_depth flag. The skip_count parameter
// specifies the number of top frames to be skipped, which doesn't
// count against the number of frames to be included.
//
// For example, if Foo() calls Bar(), which in turn calls
// GetCurrentOsStackTraceExceptTop(..., 1), Foo() will be included in
// the trace but Bar() and GetCurrentOsStackTraceExceptTop() won't.
GTEST_API_ std::string GetCurrentOsStackTraceExceptTop(
UnitTest* unit_test, int skip_count);
// Helpers for suppressing warnings on unreachable code or constant
// condition.
// Always returns true.
GTEST_API_ bool AlwaysTrue();
// Always returns false.
inline bool AlwaysFalse() { return !AlwaysTrue(); }
// Helper for suppressing false warning from Clang on a const char*
// variable declared in a conditional expression always being NULL in
// the else branch.
struct GTEST_API_ ConstCharPtr {
ConstCharPtr(const char* str) : value(str) {}
operator bool() const { return true; }
const char* value;
};
// Helper for declaring std::string within 'if' statement
// in pre C++17 build environment.
struct TrueWithString {
TrueWithString() = default;
explicit TrueWithString(const char* str) : value(str) {}
explicit TrueWithString(const std::string& str) : value(str) {}
explicit operator bool() const { return true; }
std::string value;
};
// A simple Linear Congruential Generator for generating random
// numbers with a uniform distribution. Unlike rand() and srand(), it
// doesn't use global state (and therefore can't interfere with user
// code). Unlike rand_r(), it's portable. An LCG isn't very random,
// but it's good enough for our purposes.
class GTEST_API_ Random {
public:
static const uint32_t kMaxRange = 1u << 31;
explicit Random(uint32_t seed) : state_(seed) {}
void Reseed(uint32_t seed) { state_ = seed; }
// Generates a random number from [0, range). Crashes if 'range' is
// 0 or greater than kMaxRange.
uint32_t Generate(uint32_t range);
private:
uint32_t state_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(Random);
};
// Turns const U&, U&, const U, and U all into U.
#define GTEST_REMOVE_REFERENCE_AND_CONST_(T) \
typename std::remove_const<typename std::remove_reference<T>::type>::type
// HasDebugStringAndShortDebugString<T>::value is a compile-time bool constant
// that's true if and only if T has methods DebugString() and ShortDebugString()
// that return std::string.
template <typename T>
class HasDebugStringAndShortDebugString {
private:
template <typename C>
static auto CheckDebugString(C*) -> typename std::is_same<
std::string, decltype(std::declval<const C>().DebugString())>::type;
template <typename>
static std::false_type CheckDebugString(...);
template <typename C>
static auto CheckShortDebugString(C*) -> typename std::is_same<
std::string, decltype(std::declval<const C>().ShortDebugString())>::type;
template <typename>
static std::false_type CheckShortDebugString(...);
using HasDebugStringType = decltype(CheckDebugString<T>(nullptr));
using HasShortDebugStringType = decltype(CheckShortDebugString<T>(nullptr));
public:
static constexpr bool value =
HasDebugStringType::value && HasShortDebugStringType::value;
};
template <typename T>
constexpr bool HasDebugStringAndShortDebugString<T>::value;
// When the compiler sees expression IsContainerTest<C>(0), if C is an
// STL-style container class, the first overload of IsContainerTest
// will be viable (since both C::iterator* and C::const_iterator* are
// valid types and NULL can be implicitly converted to them). It will
// be picked over the second overload as 'int' is a perfect match for
// the type of argument 0. If C::iterator or C::const_iterator is not
// a valid type, the first overload is not viable, and the second
// overload will be picked. Therefore, we can determine whether C is
// a container class by checking the type of IsContainerTest<C>(0).
// The value of the expression is insignificant.
//
// In C++11 mode we check the existence of a const_iterator and that an
// iterator is properly implemented for the container.
//
// For pre-C++11 that we look for both C::iterator and C::const_iterator.
// The reason is that C++ injects the name of a class as a member of the
// class itself (e.g. you can refer to class iterator as either
// 'iterator' or 'iterator::iterator'). If we look for C::iterator
// only, for example, we would mistakenly think that a class named
// iterator is an STL container.
//
// Also note that the simpler approach of overloading
// IsContainerTest(typename C::const_iterator*) and
// IsContainerTest(...) doesn't work with Visual Age C++ and Sun C++.
typedef int IsContainer;
template <class C,
class Iterator = decltype(::std::declval<const C&>().begin()),
class = decltype(::std::declval<const C&>().end()),
class = decltype(++::std::declval<Iterator&>()),
class = decltype(*::std::declval<Iterator>()),
class = typename C::const_iterator>
IsContainer IsContainerTest(int /* dummy */) {
return 0;
}
typedef char IsNotContainer;
template <class C>
IsNotContainer IsContainerTest(long /* dummy */) { return '\0'; }
// Trait to detect whether a type T is a hash table.
// The heuristic used is that the type contains an inner type `hasher` and does
// not contain an inner type `reverse_iterator`.
// If the container is iterable in reverse, then order might actually matter.
template <typename T>
struct IsHashTable {
private:
template <typename U>
static char test(typename U::hasher*, typename U::reverse_iterator*);
template <typename U>
static int test(typename U::hasher*, ...);
template <typename U>
static char test(...);
public:
static const bool value = sizeof(test<T>(nullptr, nullptr)) == sizeof(int);
};
template <typename T>
const bool IsHashTable<T>::value;
template <typename C,
bool = sizeof(IsContainerTest<C>(0)) == sizeof(IsContainer)>
struct IsRecursiveContainerImpl;
template <typename C>
struct IsRecursiveContainerImpl<C, false> : public std::false_type {};
// Since the IsRecursiveContainerImpl depends on the IsContainerTest we need to
// obey the same inconsistencies as the IsContainerTest, namely check if
// something is a container is relying on only const_iterator in C++11 and
// is relying on both const_iterator and iterator otherwise
template <typename C>
struct IsRecursiveContainerImpl<C, true> {
using value_type = decltype(*std::declval<typename C::const_iterator>());
using type =
std::is_same<typename std::remove_const<
typename std::remove_reference<value_type>::type>::type,
C>;
};
// IsRecursiveContainer<Type> is a unary compile-time predicate that
// evaluates whether C is a recursive container type. A recursive container
// type is a container type whose value_type is equal to the container type
// itself. An example for a recursive container type is
// boost::filesystem::path, whose iterator has a value_type that is equal to
// boost::filesystem::path.
template <typename C>
struct IsRecursiveContainer : public IsRecursiveContainerImpl<C>::type {};
// Utilities for native arrays.
// ArrayEq() compares two k-dimensional native arrays using the
// elements' operator==, where k can be any integer >= 0. When k is
// 0, ArrayEq() degenerates into comparing a single pair of values.
template <typename T, typename U>
bool ArrayEq(const T* lhs, size_t size, const U* rhs);
// This generic version is used when k is 0.
template <typename T, typename U>
inline bool ArrayEq(const T& lhs, const U& rhs) { return lhs == rhs; }
// This overload is used when k >= 1.
template <typename T, typename U, size_t N>
inline bool ArrayEq(const T(&lhs)[N], const U(&rhs)[N]) {
return internal::ArrayEq(lhs, N, rhs);
}
// This helper reduces code bloat. If we instead put its logic inside
// the previous ArrayEq() function, arrays with different sizes would
// lead to different copies of the template code.
template <typename T, typename U>
bool ArrayEq(const T* lhs, size_t size, const U* rhs) {
for (size_t i = 0; i != size; i++) {
if (!internal::ArrayEq(lhs[i], rhs[i]))
return false;
}
return true;
}
// Finds the first element in the iterator range [begin, end) that
// equals elem. Element may be a native array type itself.
template <typename Iter, typename Element>
Iter ArrayAwareFind(Iter begin, Iter end, const Element& elem) {
for (Iter it = begin; it != end; ++it) {
if (internal::ArrayEq(*it, elem))
return it;
}
return end;
}
// CopyArray() copies a k-dimensional native array using the elements'
// operator=, where k can be any integer >= 0. When k is 0,
// CopyArray() degenerates into copying a single value.
template <typename T, typename U>
void CopyArray(const T* from, size_t size, U* to);
// This generic version is used when k is 0.
template <typename T, typename U>
inline void CopyArray(const T& from, U* to) { *to = from; }
// This overload is used when k >= 1.
template <typename T, typename U, size_t N>
inline void CopyArray(const T(&from)[N], U(*to)[N]) {
internal::CopyArray(from, N, *to);
}
// This helper reduces code bloat. If we instead put its logic inside
// the previous CopyArray() function, arrays with different sizes
// would lead to different copies of the template code.
template <typename T, typename U>
void CopyArray(const T* from, size_t size, U* to) {
for (size_t i = 0; i != size; i++) {
internal::CopyArray(from[i], to + i);
}
}
// The relation between an NativeArray object (see below) and the
// native array it represents.
// We use 2 different structs to allow non-copyable types to be used, as long
// as RelationToSourceReference() is passed.
struct RelationToSourceReference {};
struct RelationToSourceCopy {};
// Adapts a native array to a read-only STL-style container. Instead
// of the complete STL container concept, this adaptor only implements
// members useful for Google Mock's container matchers. New members
// should be added as needed. To simplify the implementation, we only
// support Element being a raw type (i.e. having no top-level const or
// reference modifier). It's the client's responsibility to satisfy
// this requirement. Element can be an array type itself (hence
// multi-dimensional arrays are supported).
template <typename Element>
class NativeArray {
public:
// STL-style container typedefs.
typedef Element value_type;
typedef Element* iterator;
typedef const Element* const_iterator;
// Constructs from a native array. References the source.
NativeArray(const Element* array, size_t count, RelationToSourceReference) {
InitRef(array, count);
}
// Constructs from a native array. Copies the source.
NativeArray(const Element* array, size_t count, RelationToSourceCopy) {
InitCopy(array, count);
}
// Copy constructor.
NativeArray(const NativeArray& rhs) {
(this->*rhs.clone_)(rhs.array_, rhs.size_);
}
~NativeArray() {
if (clone_ != &NativeArray::InitRef)
delete[] array_;
}
// STL-style container methods.
size_t size() const { return size_; }
const_iterator begin() const { return array_; }
const_iterator end() const { return array_ + size_; }
bool operator==(const NativeArray& rhs) const {
return size() == rhs.size() &&
ArrayEq(begin(), size(), rhs.begin());
}
private:
static_assert(!std::is_const<Element>::value, "Type must not be const");
static_assert(!std::is_reference<Element>::value,
"Type must not be a reference");
// Initializes this object with a copy of the input.
void InitCopy(const Element* array, size_t a_size) {
Element* const copy = new Element[a_size];
CopyArray(array, a_size, copy);
array_ = copy;
size_ = a_size;
clone_ = &NativeArray::InitCopy;
}
// Initializes this object with a reference of the input.
void InitRef(const Element* array, size_t a_size) {
array_ = array;
size_ = a_size;
clone_ = &NativeArray::InitRef;
}
const Element* array_;
size_t size_;
void (NativeArray::*clone_)(const Element*, size_t);
};
// Backport of std::index_sequence.
template <size_t... Is>
struct IndexSequence {
using type = IndexSequence;
};
// Double the IndexSequence, and one if plus_one is true.
template <bool plus_one, typename T, size_t sizeofT>
struct DoubleSequence;
template <size_t... I, size_t sizeofT>
struct DoubleSequence<true, IndexSequence<I...>, sizeofT> {
using type = IndexSequence<I..., (sizeofT + I)..., 2 * sizeofT>;
};
template <size_t... I, size_t sizeofT>
struct DoubleSequence<false, IndexSequence<I...>, sizeofT> {
using type = IndexSequence<I..., (sizeofT + I)...>;
};
// Backport of std::make_index_sequence.
// It uses O(ln(N)) instantiation depth.
template <size_t N>
struct MakeIndexSequenceImpl
: DoubleSequence<N % 2 == 1, typename MakeIndexSequenceImpl<N / 2>::type,
N / 2>::type {};
template <>
struct MakeIndexSequenceImpl<0> : IndexSequence<> {};
template <size_t N>
using MakeIndexSequence = typename MakeIndexSequenceImpl<N>::type;
template <typename... T>
using IndexSequenceFor = typename MakeIndexSequence<sizeof...(T)>::type;
template <size_t>
struct Ignore {
Ignore(...); // NOLINT
};
template <typename>
struct ElemFromListImpl;
template <size_t... I>
struct ElemFromListImpl<IndexSequence<I...>> {
// We make Ignore a template to solve a problem with MSVC.
// A non-template Ignore would work fine with `decltype(Ignore(I))...`, but
// MSVC doesn't understand how to deal with that pack expansion.
// Use `0 * I` to have a single instantiation of Ignore.
template <typename R>
static R Apply(Ignore<0 * I>..., R (*)(), ...);
};
template <size_t N, typename... T>
struct ElemFromList {
using type =
decltype(ElemFromListImpl<typename MakeIndexSequence<N>::type>::Apply(
static_cast<T (*)()>(nullptr)...));
};
struct FlatTupleConstructTag {};
template <typename... T>
class FlatTuple;
template <typename Derived, size_t I>
struct FlatTupleElemBase;
template <typename... T, size_t I>
struct FlatTupleElemBase<FlatTuple<T...>, I> {
using value_type = typename ElemFromList<I, T...>::type;
FlatTupleElemBase() = default;
template <typename Arg>
explicit FlatTupleElemBase(FlatTupleConstructTag, Arg&& t)
: value(std::forward<Arg>(t)) {}
value_type value;
};
template <typename Derived, typename Idx>
struct FlatTupleBase;
template <size_t... Idx, typename... T>
struct FlatTupleBase<FlatTuple<T...>, IndexSequence<Idx...>>
: FlatTupleElemBase<FlatTuple<T...>, Idx>... {
using Indices = IndexSequence<Idx...>;
FlatTupleBase() = default;
template <typename... Args>
explicit FlatTupleBase(FlatTupleConstructTag, Args&&... args)
: FlatTupleElemBase<FlatTuple<T...>, Idx>(FlatTupleConstructTag{},
std::forward<Args>(args))... {}
template <size_t I>
const typename ElemFromList<I, T...>::type& Get() const {
return FlatTupleElemBase<FlatTuple<T...>, I>::value;
}
template <size_t I>
typename ElemFromList<I, T...>::type& Get() {
return FlatTupleElemBase<FlatTuple<T...>, I>::value;
}
template <typename F>
auto Apply(F&& f) -> decltype(std::forward<F>(f)(this->Get<Idx>()...)) {
return std::forward<F>(f)(Get<Idx>()...);
}
template <typename F>
auto Apply(F&& f) const -> decltype(std::forward<F>(f)(this->Get<Idx>()...)) {
return std::forward<F>(f)(Get<Idx>()...);
}
};
// Analog to std::tuple but with different tradeoffs.
// This class minimizes the template instantiation depth, thus allowing more
// elements than std::tuple would. std::tuple has been seen to require an
// instantiation depth of more than 10x the number of elements in some
// implementations.
// FlatTuple and ElemFromList are not recursive and have a fixed depth
// regardless of T...
// MakeIndexSequence, on the other hand, it is recursive but with an
// instantiation depth of O(ln(N)).
template <typename... T>
class FlatTuple
: private FlatTupleBase<FlatTuple<T...>,
typename MakeIndexSequence<sizeof...(T)>::type> {
using Indices = typename FlatTupleBase<
FlatTuple<T...>, typename MakeIndexSequence<sizeof...(T)>::type>::Indices;
public:
FlatTuple() = default;
template <typename... Args>
explicit FlatTuple(FlatTupleConstructTag tag, Args&&... args)
: FlatTuple::FlatTupleBase(tag, std::forward<Args>(args)...) {}
using FlatTuple::FlatTupleBase::Apply;
using FlatTuple::FlatTupleBase::Get;
};
// Utility functions to be called with static_assert to induce deprecation
// warnings.
GTEST_INTERNAL_DEPRECATED(
"INSTANTIATE_TEST_CASE_P is deprecated, please use "
"INSTANTIATE_TEST_SUITE_P")
constexpr bool InstantiateTestCase_P_IsDeprecated() { return true; }
GTEST_INTERNAL_DEPRECATED(
"TYPED_TEST_CASE_P is deprecated, please use "
"TYPED_TEST_SUITE_P")
constexpr bool TypedTestCase_P_IsDeprecated() { return true; }
GTEST_INTERNAL_DEPRECATED(
"TYPED_TEST_CASE is deprecated, please use "
"TYPED_TEST_SUITE")
constexpr bool TypedTestCaseIsDeprecated() { return true; }
GTEST_INTERNAL_DEPRECATED(
"REGISTER_TYPED_TEST_CASE_P is deprecated, please use "
"REGISTER_TYPED_TEST_SUITE_P")
constexpr bool RegisterTypedTestCase_P_IsDeprecated() { return true; }
GTEST_INTERNAL_DEPRECATED(
"INSTANTIATE_TYPED_TEST_CASE_P is deprecated, please use "
"INSTANTIATE_TYPED_TEST_SUITE_P")
constexpr bool InstantiateTypedTestCase_P_IsDeprecated() { return true; }
} // namespace internal
} // namespace testing
namespace std {
// Some standard library implementations use `struct tuple_size` and some use
// `class tuple_size`. Clang warns about the mismatch.
// https://reviews.llvm.org/D55466
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmismatched-tags"
#endif
template <typename... Ts>
struct tuple_size<testing::internal::FlatTuple<Ts...>>
: std::integral_constant<size_t, sizeof...(Ts)> {};
#ifdef __clang__
#pragma clang diagnostic pop
#endif
} // namespace std
#define GTEST_MESSAGE_AT_(file, line, message, result_type) \
::testing::internal::AssertHelper(result_type, file, line, message) \
= ::testing::Message()
#define GTEST_MESSAGE_(message, result_type) \
GTEST_MESSAGE_AT_(__FILE__, __LINE__, message, result_type)
#define GTEST_FATAL_FAILURE_(message) \
return GTEST_MESSAGE_(message, ::testing::TestPartResult::kFatalFailure)
#define GTEST_NONFATAL_FAILURE_(message) \
GTEST_MESSAGE_(message, ::testing::TestPartResult::kNonFatalFailure)
#define GTEST_SUCCESS_(message) \
GTEST_MESSAGE_(message, ::testing::TestPartResult::kSuccess)
#define GTEST_SKIP_(message) \
return GTEST_MESSAGE_(message, ::testing::TestPartResult::kSkip)
// Suppress MSVC warning 4072 (unreachable code) for the code following
// statement if it returns or throws (or doesn't return or throw in some
// situations).
// NOTE: The "else" is important to keep this expansion to prevent a top-level
// "else" from attaching to our "if".
#define GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement) \
if (::testing::internal::AlwaysTrue()) { \
statement; \
} else /* NOLINT */ \
static_assert(true, "") // User must have a semicolon after expansion.
#if GTEST_HAS_EXCEPTIONS
namespace testing {
namespace internal {
class NeverThrown {
public:
const char* what() const noexcept {
return "this exception should never be thrown";
}
};
} // namespace internal
} // namespace testing
#if GTEST_HAS_RTTI
#define GTEST_EXCEPTION_TYPE_(e) ::testing::internal::GetTypeName(typeid(e))
#else // GTEST_HAS_RTTI
#define GTEST_EXCEPTION_TYPE_(e) \
std::string { "an std::exception-derived error" }
#endif // GTEST_HAS_RTTI
#define GTEST_TEST_THROW_CATCH_STD_EXCEPTION_(statement, expected_exception) \
catch (typename std::conditional< \
std::is_same<typename std::remove_cv<typename std::remove_reference< \
expected_exception>::type>::type, \
std::exception>::value, \
const ::testing::internal::NeverThrown&, const std::exception&>::type \
e) { \
gtest_msg.value = "Expected: " #statement \
" throws an exception of type " #expected_exception \
".\n Actual: it throws "; \
gtest_msg.value += GTEST_EXCEPTION_TYPE_(e); \
gtest_msg.value += " with description \""; \
gtest_msg.value += e.what(); \
gtest_msg.value += "\"."; \
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
}
#else // GTEST_HAS_EXCEPTIONS
#define GTEST_TEST_THROW_CATCH_STD_EXCEPTION_(statement, expected_exception)
#endif // GTEST_HAS_EXCEPTIONS
#define GTEST_TEST_THROW_(statement, expected_exception, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::TrueWithString gtest_msg{}) { \
bool gtest_caught_expected = false; \
try { \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
} catch (expected_exception const&) { \
gtest_caught_expected = true; \
} \
GTEST_TEST_THROW_CATCH_STD_EXCEPTION_(statement, expected_exception) \
catch (...) { \
gtest_msg.value = "Expected: " #statement \
" throws an exception of type " #expected_exception \
".\n Actual: it throws a different type."; \
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
} \
if (!gtest_caught_expected) { \
gtest_msg.value = "Expected: " #statement \
" throws an exception of type " #expected_exception \
".\n Actual: it throws nothing."; \
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
} \
} else /*NOLINT*/ \
GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__) \
: fail(gtest_msg.value.c_str())
#if GTEST_HAS_EXCEPTIONS
#define GTEST_TEST_NO_THROW_CATCH_STD_EXCEPTION_() \
catch (std::exception const& e) { \
gtest_msg.value = "it throws "; \
gtest_msg.value += GTEST_EXCEPTION_TYPE_(e); \
gtest_msg.value += " with description \""; \
gtest_msg.value += e.what(); \
gtest_msg.value += "\"."; \
goto GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__); \
}
#else // GTEST_HAS_EXCEPTIONS
#define GTEST_TEST_NO_THROW_CATCH_STD_EXCEPTION_()
#endif // GTEST_HAS_EXCEPTIONS
#define GTEST_TEST_NO_THROW_(statement, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::TrueWithString gtest_msg{}) { \
try { \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
} \
GTEST_TEST_NO_THROW_CATCH_STD_EXCEPTION_() \
catch (...) { \
gtest_msg.value = "it throws."; \
goto GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__); \
} \
} else \
GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__): \
fail(("Expected: " #statement " doesn't throw an exception.\n" \
" Actual: " + gtest_msg.value).c_str())
#define GTEST_TEST_ANY_THROW_(statement, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::AlwaysTrue()) { \
bool gtest_caught_any = false; \
try { \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
} \
catch (...) { \
gtest_caught_any = true; \
} \
if (!gtest_caught_any) { \
goto GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__); \
} \
} else \
GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__): \
fail("Expected: " #statement " throws an exception.\n" \
" Actual: it doesn't.")
// Implements Boolean test assertions such as EXPECT_TRUE. expression can be
// either a boolean expression or an AssertionResult. text is a textual
// representation of expression as it was passed into the EXPECT_TRUE.
#define GTEST_TEST_BOOLEAN_(expression, text, actual, expected, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (const ::testing::AssertionResult gtest_ar_ = \
::testing::AssertionResult(expression)) \
; \
else \
fail(::testing::internal::GetBoolAssertionFailureMessage(\
gtest_ar_, text, #actual, #expected).c_str())
#define GTEST_TEST_NO_FATAL_FAILURE_(statement, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::AlwaysTrue()) { \
::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
if (gtest_fatal_failure_checker.has_new_fatal_failure()) { \
goto GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__); \
} \
} else \
GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__): \
fail("Expected: " #statement " doesn't generate new fatal " \
"failures in the current thread.\n" \
" Actual: it does.")
// Expands to the name of the class that implements the given test.
#define GTEST_TEST_CLASS_NAME_(test_suite_name, test_name) \
test_suite_name##_##test_name##_Test
// Helper macro for defining tests.
#define GTEST_TEST_(test_suite_name, test_name, parent_class, parent_id) \
static_assert(sizeof(GTEST_STRINGIFY_(test_suite_name)) > 1, \
"test_suite_name must not be empty"); \
static_assert(sizeof(GTEST_STRINGIFY_(test_name)) > 1, \
"test_name must not be empty"); \
class GTEST_TEST_CLASS_NAME_(test_suite_name, test_name) \
: public parent_class { \
public: \
GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)() = default; \
~GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)() override = default; \
GTEST_DISALLOW_COPY_AND_ASSIGN_(GTEST_TEST_CLASS_NAME_(test_suite_name, \
test_name)); \
GTEST_DISALLOW_MOVE_AND_ASSIGN_(GTEST_TEST_CLASS_NAME_(test_suite_name, \
test_name)); \
\
private: \
void TestBody() override; \
static ::testing::TestInfo* const test_info_ GTEST_ATTRIBUTE_UNUSED_; \
}; \
\
::testing::TestInfo* const GTEST_TEST_CLASS_NAME_(test_suite_name, \
test_name)::test_info_ = \
::testing::internal::MakeAndRegisterTestInfo( \
#test_suite_name, #test_name, nullptr, nullptr, \
::testing::internal::CodeLocation(__FILE__, __LINE__), (parent_id), \
::testing::internal::SuiteApiResolver< \
parent_class>::GetSetUpCaseOrSuite(__FILE__, __LINE__), \
::testing::internal::SuiteApiResolver< \
parent_class>::GetTearDownCaseOrSuite(__FILE__, __LINE__), \
new ::testing::internal::TestFactoryImpl<GTEST_TEST_CLASS_NAME_( \
test_suite_name, test_name)>); \
void GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)::TestBody()
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file defines the public API for death tests. It is
// #included by gtest.h so a user doesn't need to include this
// directly.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_DEATH_TEST_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_DEATH_TEST_H_
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This header file defines internal utilities needed for implementing
// death tests. They are subject to change without notice.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// The Google C++ Testing and Mocking Framework (Google Test)
//
// This file implements just enough of the matcher interface to allow
// EXPECT_DEATH and friends to accept a matcher argument.
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_MATCHERS_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_MATCHERS_H_
#include <atomic>
#include <memory>
#include <ostream>
#include <string>
#include <type_traits>
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Google Test - The Google C++ Testing and Mocking Framework
//
// This file implements a universal value printer that can print a
// value of any type T:
//
// void ::testing::internal::UniversalPrinter<T>::Print(value, ostream_ptr);
//
// A user can teach this function how to print a class type T by
// defining either operator<<() or PrintTo() in the namespace that
// defines T. More specifically, the FIRST defined function in the
// following list will be used (assuming T is defined in namespace
// foo):
//
// 1. foo::PrintTo(const T&, ostream*)
// 2. operator<<(ostream&, const T&) defined in either foo or the
// global namespace.
//
// However if T is an STL-style container then it is printed element-wise
// unless foo::PrintTo(const T&, ostream*) is defined. Note that
// operator<<() is ignored for container types.
//
// If none of the above is defined, it will print the debug string of
// the value if it is a protocol buffer, or print the raw bytes in the
// value otherwise.
//
// To aid debugging: when T is a reference type, the address of the
// value is also printed; when T is a (const) char pointer, both the
// pointer value and the NUL-terminated string it points to are
// printed.
//
// We also provide some convenient wrappers:
//
// // Prints a value to a string. For a (const or not) char
// // pointer, the NUL-terminated string (but not the pointer) is
// // printed.
// std::string ::testing::PrintToString(const T& value);
//
// // Prints a value tersely: for a reference type, the referenced
// // value (but not the address) is printed; for a (const or not) char
// // pointer, the NUL-terminated string (but not the pointer) is
// // printed.
// void ::testing::internal::UniversalTersePrint(const T& value, ostream*);
//
// // Prints value using the type inferred by the compiler. The difference
// // from UniversalTersePrint() is that this function prints both the
// // pointer and the NUL-terminated string for a (const or not) char pointer.
// void ::testing::internal::UniversalPrint(const T& value, ostream*);
//
// // Prints the fields of a tuple tersely to a string vector, one
// // element for each field. Tuple support must be enabled in
// // gtest-port.h.
// std::vector<string> UniversalTersePrintTupleFieldsToStrings(
// const Tuple& value);
//
// Known limitation:
//
// The print primitives print the elements of an STL-style container
// using the compiler-inferred type of *iter where iter is a
// const_iterator of the container. When const_iterator is an input
// iterator but not a forward iterator, this inferred type may not
// match value_type, and the print output may be incorrect. In
// practice, this is rarely a problem as for most containers
// const_iterator is a forward iterator. We'll fix this if there's an
// actual need for it. Note that this fix cannot rely on value_type
// being defined as many user-defined container types don't have
// value_type.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
#include <functional>
#include <memory>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
#include <tuple>
#include <type_traits>
#include <utility>
#include <vector>
namespace testing {
// Definitions in the internal* namespaces are subject to change without notice.
// DO NOT USE THEM IN USER CODE!
namespace internal {
template <typename T>
void UniversalPrint(const T& value, ::std::ostream* os);
// Used to print an STL-style container when the user doesn't define
// a PrintTo() for it.
struct ContainerPrinter {
template <typename T,
typename = typename std::enable_if<
(sizeof(IsContainerTest<T>(0)) == sizeof(IsContainer)) &&
!IsRecursiveContainer<T>::value>::type>
static void PrintValue(const T& container, std::ostream* os) {
const size_t kMaxCount = 32; // The maximum number of elements to print.
*os << '{';
size_t count = 0;
for (auto&& elem : container) {
if (count > 0) {
*os << ',';
if (count == kMaxCount) { // Enough has been printed.
*os << " ...";
break;
}
}
*os << ' ';
// We cannot call PrintTo(elem, os) here as PrintTo() doesn't
// handle `elem` being a native array.
internal::UniversalPrint(elem, os);
++count;
}
if (count > 0) {
*os << ' ';
}
*os << '}';
}
};
// Used to print a pointer that is neither a char pointer nor a member
// pointer, when the user doesn't define PrintTo() for it. (A member
// variable pointer or member function pointer doesn't really point to
// a location in the address space. Their representation is
// implementation-defined. Therefore they will be printed as raw
// bytes.)
struct FunctionPointerPrinter {
template <typename T, typename = typename std::enable_if<
std::is_function<T>::value>::type>
static void PrintValue(T* p, ::std::ostream* os) {
if (p == nullptr) {
*os << "NULL";
} else {
// T is a function type, so '*os << p' doesn't do what we want
// (it just prints p as bool). We want to print p as a const
// void*.
*os << reinterpret_cast<const void*>(p);
}
}
};
struct PointerPrinter {
template <typename T>
static void PrintValue(T* p, ::std::ostream* os) {
if (p == nullptr) {
*os << "NULL";
} else {
// T is not a function type. We just call << to print p,
// relying on ADL to pick up user-defined << for their pointer
// types, if any.
*os << p;
}
}
};
namespace internal_stream_operator_without_lexical_name_lookup {
// The presence of an operator<< here will terminate lexical scope lookup
// straight away (even though it cannot be a match because of its argument
// types). Thus, the two operator<< calls in StreamPrinter will find only ADL
// candidates.
struct LookupBlocker {};
void operator<<(LookupBlocker, LookupBlocker);
struct StreamPrinter {
template <typename T,
// Don't accept member pointers here. We'd print them via implicit
// conversion to bool, which isn't useful.
typename = typename std::enable_if<
!std::is_member_pointer<T>::value>::type,
// Only accept types for which we can find a streaming operator via
// ADL (possibly involving implicit conversions).
typename = decltype(std::declval<std::ostream&>()
<< std::declval<const T&>())>
static void PrintValue(const T& value, ::std::ostream* os) {
// Call streaming operator found by ADL, possibly with implicit conversions
// of the arguments.
*os << value;
}
};
} // namespace internal_stream_operator_without_lexical_name_lookup
struct ProtobufPrinter {
// We print a protobuf using its ShortDebugString() when the string
// doesn't exceed this many characters; otherwise we print it using
// DebugString() for better readability.
static const size_t kProtobufOneLinerMaxLength = 50;
template <typename T,
typename = typename std::enable_if<
internal::HasDebugStringAndShortDebugString<T>::value>::type>
static void PrintValue(const T& value, ::std::ostream* os) {
std::string pretty_str = value.ShortDebugString();
if (pretty_str.length() > kProtobufOneLinerMaxLength) {
pretty_str = "\n" + value.DebugString();
}
*os << ("<" + pretty_str + ">");
}
};
struct ConvertibleToIntegerPrinter {
// Since T has no << operator or PrintTo() but can be implicitly
// converted to BiggestInt, we print it as a BiggestInt.
//
// Most likely T is an enum type (either named or unnamed), in which
// case printing it as an integer is the desired behavior. In case
// T is not an enum, printing it as an integer is the best we can do
// given that it has no user-defined printer.
static void PrintValue(internal::BiggestInt value, ::std::ostream* os) {
*os << value;
}
};
struct ConvertibleToStringViewPrinter {
#if GTEST_INTERNAL_HAS_STRING_VIEW
static void PrintValue(internal::StringView value, ::std::ostream* os) {
internal::UniversalPrint(value, os);
}
#endif
};
// Prints the given number of bytes in the given object to the given
// ostream.
GTEST_API_ void PrintBytesInObjectTo(const unsigned char* obj_bytes,
size_t count,
::std::ostream* os);
struct RawBytesPrinter {
// SFINAE on `sizeof` to make sure we have a complete type.
template <typename T, size_t = sizeof(T)>
static void PrintValue(const T& value, ::std::ostream* os) {
PrintBytesInObjectTo(
static_cast<const unsigned char*>(
// Load bearing cast to void* to support iOS
reinterpret_cast<const void*>(std::addressof(value))),
sizeof(value), os);
}
};
struct FallbackPrinter {
template <typename T>
static void PrintValue(const T&, ::std::ostream* os) {
*os << "(incomplete type)";
}
};
// Try every printer in order and return the first one that works.
template <typename T, typename E, typename Printer, typename... Printers>
struct FindFirstPrinter : FindFirstPrinter<T, E, Printers...> {};
template <typename T, typename Printer, typename... Printers>
struct FindFirstPrinter<
T, decltype(Printer::PrintValue(std::declval<const T&>(), nullptr)),
Printer, Printers...> {
using type = Printer;
};
// Select the best printer in the following order:
// - Print containers (they have begin/end/etc).
// - Print function pointers.
// - Print object pointers.
// - Use the stream operator, if available.
// - Print protocol buffers.
// - Print types convertible to BiggestInt.
// - Print types convertible to StringView, if available.
// - Fallback to printing the raw bytes of the object.
template <typename T>
void PrintWithFallback(const T& value, ::std::ostream* os) {
using Printer = typename FindFirstPrinter<
T, void, ContainerPrinter, FunctionPointerPrinter, PointerPrinter,
internal_stream_operator_without_lexical_name_lookup::StreamPrinter,
ProtobufPrinter, ConvertibleToIntegerPrinter,
ConvertibleToStringViewPrinter, RawBytesPrinter, FallbackPrinter>::type;
Printer::PrintValue(value, os);
}
// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
// value of type ToPrint that is an operand of a comparison assertion
// (e.g. ASSERT_EQ). OtherOperand is the type of the other operand in
// the comparison, and is used to help determine the best way to
// format the value. In particular, when the value is a C string
// (char pointer) and the other operand is an STL string object, we
// want to format the C string as a string, since we know it is
// compared by value with the string object. If the value is a char
// pointer but the other operand is not an STL string object, we don't
// know whether the pointer is supposed to point to a NUL-terminated
// string, and thus want to print it as a pointer to be safe.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
// The default case.
template <typename ToPrint, typename OtherOperand>
class FormatForComparison {
public:
static ::std::string Format(const ToPrint& value) {
return ::testing::PrintToString(value);
}
};
// Array.
template <typename ToPrint, size_t N, typename OtherOperand>
class FormatForComparison<ToPrint[N], OtherOperand> {
public:
static ::std::string Format(const ToPrint* value) {
return FormatForComparison<const ToPrint*, OtherOperand>::Format(value);
}
};
// By default, print C string as pointers to be safe, as we don't know
// whether they actually point to a NUL-terminated string.
#define GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(CharType) \
template <typename OtherOperand> \
class FormatForComparison<CharType*, OtherOperand> { \
public: \
static ::std::string Format(CharType* value) { \
return ::testing::PrintToString(static_cast<const void*>(value)); \
} \
}
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(wchar_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const wchar_t);
#ifdef __cpp_char8_t
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char8_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char8_t);
#endif
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char16_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char16_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char32_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char32_t);
#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
// If a C string is compared with an STL string object, we know it's meant
// to point to a NUL-terminated string, and thus can print it as a string.
#define GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(CharType, OtherStringType) \
template <> \
class FormatForComparison<CharType*, OtherStringType> { \
public: \
static ::std::string Format(CharType* value) { \
return ::testing::PrintToString(value); \
} \
}
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
#ifdef __cpp_char8_t
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char8_t, ::std::u8string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char8_t, ::std::u8string);
#endif
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char16_t, ::std::u16string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char16_t, ::std::u16string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char32_t, ::std::u32string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char32_t, ::std::u32string);
#if GTEST_HAS_STD_WSTRING
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::std::wstring);
#endif
#undef GTEST_IMPL_FORMAT_C_STRING_AS_STRING_
// Formats a comparison assertion (e.g. ASSERT_EQ, EXPECT_LT, and etc)
// operand to be used in a failure message. The type (but not value)
// of the other operand may affect the format. This allows us to
// print a char* as a raw pointer when it is compared against another
// char* or void*, and print it as a C string when it is compared
// against an std::string object, for example.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
template <typename T1, typename T2>
std::string FormatForComparisonFailureMessage(
const T1& value, const T2& /* other_operand */) {
return FormatForComparison<T1, T2>::Format(value);
}
// UniversalPrinter<T>::Print(value, ostream_ptr) prints the given
// value to the given ostream. The caller must ensure that
// 'ostream_ptr' is not NULL, or the behavior is undefined.
//
// We define UniversalPrinter as a class template (as opposed to a
// function template), as we need to partially specialize it for
// reference types, which cannot be done with function templates.
template <typename T>
class UniversalPrinter;
// Prints the given value using the << operator if it has one;
// otherwise prints the bytes in it. This is what
// UniversalPrinter<T>::Print() does when PrintTo() is not specialized
// or overloaded for type T.
//
// A user can override this behavior for a class type Foo by defining
// an overload of PrintTo() in the namespace where Foo is defined. We
// give the user this option as sometimes defining a << operator for
// Foo is not desirable (e.g. the coding style may prevent doing it,
// or there is already a << operator but it doesn't do what the user
// wants).
template <typename T>
void PrintTo(const T& value, ::std::ostream* os) {
internal::PrintWithFallback(value, os);
}
// The following list of PrintTo() overloads tells
// UniversalPrinter<T>::Print() how to print standard types (built-in
// types, strings, plain arrays, and pointers).
// Overloads for various char types.
GTEST_API_ void PrintTo(unsigned char c, ::std::ostream* os);
GTEST_API_ void PrintTo(signed char c, ::std::ostream* os);
inline void PrintTo(char c, ::std::ostream* os) {
// When printing a plain char, we always treat it as unsigned. This
// way, the output won't be affected by whether the compiler thinks
// char is signed or not.
PrintTo(static_cast<unsigned char>(c), os);
}
// Overloads for other simple built-in types.
inline void PrintTo(bool x, ::std::ostream* os) {
*os << (x ? "true" : "false");
}
// Overload for wchar_t type.
// Prints a wchar_t as a symbol if it is printable or as its internal
// code otherwise and also as its decimal code (except for L'\0').
// The L'\0' char is printed as "L'\\0'". The decimal code is printed
// as signed integer when wchar_t is implemented by the compiler
// as a signed type and is printed as an unsigned integer when wchar_t
// is implemented as an unsigned type.
GTEST_API_ void PrintTo(wchar_t wc, ::std::ostream* os);
GTEST_API_ void PrintTo(char32_t c, ::std::ostream* os);
inline void PrintTo(char16_t c, ::std::ostream* os) {
PrintTo(ImplicitCast_<char32_t>(c), os);
}
#ifdef __cpp_char8_t
inline void PrintTo(char8_t c, ::std::ostream* os) {
PrintTo(ImplicitCast_<char32_t>(c), os);
}
#endif
// Overloads for C strings.
GTEST_API_ void PrintTo(const char* s, ::std::ostream* os);
inline void PrintTo(char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const char*>(s), os);
}
// signed/unsigned char is often used for representing binary data, so
// we print pointers to it as void* to be safe.
inline void PrintTo(const signed char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const void*>(s), os);
}
inline void PrintTo(signed char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const void*>(s), os);
}
inline void PrintTo(const unsigned char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const void*>(s), os);
}
inline void PrintTo(unsigned char* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const void*>(s), os);
}
#ifdef __cpp_char8_t
// Overloads for u8 strings.
GTEST_API_ void PrintTo(const char8_t* s, ::std::ostream* os);
inline void PrintTo(char8_t* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const char8_t*>(s), os);
}
#endif
// Overloads for u16 strings.
GTEST_API_ void PrintTo(const char16_t* s, ::std::ostream* os);
inline void PrintTo(char16_t* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const char16_t*>(s), os);
}
// Overloads for u32 strings.
GTEST_API_ void PrintTo(const char32_t* s, ::std::ostream* os);
inline void PrintTo(char32_t* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const char32_t*>(s), os);
}
// MSVC can be configured to define wchar_t as a typedef of unsigned
// short. It defines _NATIVE_WCHAR_T_DEFINED when wchar_t is a native
// type. When wchar_t is a typedef, defining an overload for const
// wchar_t* would cause unsigned short* be printed as a wide string,
// possibly causing invalid memory accesses.
#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
// Overloads for wide C strings
GTEST_API_ void PrintTo(const wchar_t* s, ::std::ostream* os);
inline void PrintTo(wchar_t* s, ::std::ostream* os) {
PrintTo(ImplicitCast_<const wchar_t*>(s), os);
}
#endif
// Overload for C arrays. Multi-dimensional arrays are printed
// properly.
// Prints the given number of elements in an array, without printing
// the curly braces.
template <typename T>
void PrintRawArrayTo(const T a[], size_t count, ::std::ostream* os) {
UniversalPrint(a[0], os);
for (size_t i = 1; i != count; i++) {
*os << ", ";
UniversalPrint(a[i], os);
}
}
// Overloads for ::std::string.
GTEST_API_ void PrintStringTo(const ::std::string&s, ::std::ostream* os);
inline void PrintTo(const ::std::string& s, ::std::ostream* os) {
PrintStringTo(s, os);
}
// Overloads for ::std::u8string
#ifdef __cpp_char8_t
GTEST_API_ void PrintU8StringTo(const ::std::u8string& s, ::std::ostream* os);
inline void PrintTo(const ::std::u8string& s, ::std::ostream* os) {
PrintU8StringTo(s, os);
}
#endif
// Overloads for ::std::u16string
GTEST_API_ void PrintU16StringTo(const ::std::u16string& s, ::std::ostream* os);
inline void PrintTo(const ::std::u16string& s, ::std::ostream* os) {
PrintU16StringTo(s, os);
}
// Overloads for ::std::u32string
GTEST_API_ void PrintU32StringTo(const ::std::u32string& s, ::std::ostream* os);
inline void PrintTo(const ::std::u32string& s, ::std::ostream* os) {
PrintU32StringTo(s, os);
}
// Overloads for ::std::wstring.
#if GTEST_HAS_STD_WSTRING
GTEST_API_ void PrintWideStringTo(const ::std::wstring&s, ::std::ostream* os);
inline void PrintTo(const ::std::wstring& s, ::std::ostream* os) {
PrintWideStringTo(s, os);
}
#endif // GTEST_HAS_STD_WSTRING
#if GTEST_INTERNAL_HAS_STRING_VIEW
// Overload for internal::StringView.
inline void PrintTo(internal::StringView sp, ::std::ostream* os) {
PrintTo(::std::string(sp), os);
}
#endif // GTEST_INTERNAL_HAS_STRING_VIEW
inline void PrintTo(std::nullptr_t, ::std::ostream* os) { *os << "(nullptr)"; }
template <typename T>
void PrintTo(std::reference_wrapper<T> ref, ::std::ostream* os) {
UniversalPrinter<T&>::Print(ref.get(), os);
}
inline const void* VoidifyPointer(const void* p) { return p; }
inline const void* VoidifyPointer(volatile const void* p) {
return const_cast<const void*>(p);
}
template <typename T, typename Ptr>
void PrintSmartPointer(const Ptr& ptr, std::ostream* os, char) {
if (ptr == nullptr) {
*os << "(nullptr)";
} else {
// We can't print the value. Just print the pointer..
*os << "(" << (VoidifyPointer)(ptr.get()) << ")";
}
}
template <typename T, typename Ptr,
typename = typename std::enable_if<!std::is_void<T>::value &&
!std::is_array<T>::value>::type>
void PrintSmartPointer(const Ptr& ptr, std::ostream* os, int) {
if (ptr == nullptr) {
*os << "(nullptr)";
} else {
*os << "(ptr = " << (VoidifyPointer)(ptr.get()) << ", value = ";
UniversalPrinter<T>::Print(*ptr, os);
*os << ")";
}
}
template <typename T, typename D>
void PrintTo(const std::unique_ptr<T, D>& ptr, std::ostream* os) {
(PrintSmartPointer<T>)(ptr, os, 0);
}
template <typename T>
void PrintTo(const std::shared_ptr<T>& ptr, std::ostream* os) {
(PrintSmartPointer<T>)(ptr, os, 0);
}
// Helper function for printing a tuple. T must be instantiated with
// a tuple type.
template <typename T>
void PrintTupleTo(const T&, std::integral_constant<size_t, 0>,
::std::ostream*) {}
template <typename T, size_t I>
void PrintTupleTo(const T& t, std::integral_constant<size_t, I>,
::std::ostream* os) {
PrintTupleTo(t, std::integral_constant<size_t, I - 1>(), os);
GTEST_INTENTIONAL_CONST_COND_PUSH_()
if (I > 1) {
GTEST_INTENTIONAL_CONST_COND_POP_()
*os << ", ";
}
UniversalPrinter<typename std::tuple_element<I - 1, T>::type>::Print(
std::get<I - 1>(t), os);
}
template <typename... Types>
void PrintTo(const ::std::tuple<Types...>& t, ::std::ostream* os) {
*os << "(";
PrintTupleTo(t, std::integral_constant<size_t, sizeof...(Types)>(), os);
*os << ")";
}
// Overload for std::pair.
template <typename T1, typename T2>
void PrintTo(const ::std::pair<T1, T2>& value, ::std::ostream* os) {
*os << '(';
// We cannot use UniversalPrint(value.first, os) here, as T1 may be
// a reference type. The same for printing value.second.
UniversalPrinter<T1>::Print(value.first, os);
*os << ", ";
UniversalPrinter<T2>::Print(value.second, os);
*os << ')';
}
// Implements printing a non-reference type T by letting the compiler
// pick the right overload of PrintTo() for T.
template <typename T>
class UniversalPrinter {
public:
// MSVC warns about adding const to a function type, so we want to
// disable the warning.
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4180)
// Note: we deliberately don't call this PrintTo(), as that name
// conflicts with ::testing::internal::PrintTo in the body of the
// function.
static void Print(const T& value, ::std::ostream* os) {
// By default, ::testing::internal::PrintTo() is used for printing
// the value.
//
// Thanks to Koenig look-up, if T is a class and has its own
// PrintTo() function defined in its namespace, that function will
// be visible here. Since it is more specific than the generic ones
// in ::testing::internal, it will be picked by the compiler in the
// following statement - exactly what we want.
PrintTo(value, os);
}
GTEST_DISABLE_MSC_WARNINGS_POP_()
};
// Remove any const-qualifiers before passing a type to UniversalPrinter.
template <typename T>
class UniversalPrinter<const T> : public UniversalPrinter<T> {};
#if GTEST_INTERNAL_HAS_ANY
// Printer for std::any / absl::any
template <>
class UniversalPrinter<Any> {
public:
static void Print(const Any& value, ::std::ostream* os) {
if (value.has_value()) {
*os << "value of type " << GetTypeName(value);
} else {
*os << "no value";
}
}
private:
static std::string GetTypeName(const Any& value) {
#if GTEST_HAS_RTTI
return internal::GetTypeName(value.type());
#else
static_cast<void>(value); // possibly unused
return "<unknown_type>";
#endif // GTEST_HAS_RTTI
}
};
#endif // GTEST_INTERNAL_HAS_ANY
#if GTEST_INTERNAL_HAS_OPTIONAL
// Printer for std::optional / absl::optional
template <typename T>
class UniversalPrinter<Optional<T>> {
public:
static void Print(const Optional<T>& value, ::std::ostream* os) {
*os << '(';
if (!value) {
*os << "nullopt";
} else {
UniversalPrint(*value, os);
}
*os << ')';
}
};
#endif // GTEST_INTERNAL_HAS_OPTIONAL
#if GTEST_INTERNAL_HAS_VARIANT
// Printer for std::variant / absl::variant
template <typename... T>
class UniversalPrinter<Variant<T...>> {
public:
static void Print(const Variant<T...>& value, ::std::ostream* os) {
*os << '(';
#if GTEST_HAS_ABSL
absl::visit(Visitor{os, value.index()}, value);
#else
std::visit(Visitor{os, value.index()}, value);
#endif // GTEST_HAS_ABSL
*os << ')';
}
private:
struct Visitor {
template <typename U>
void operator()(const U& u) const {
*os << "'" << GetTypeName<U>() << "(index = " << index
<< ")' with value ";
UniversalPrint(u, os);
}
::std::ostream* os;
std::size_t index;
};
};
#endif // GTEST_INTERNAL_HAS_VARIANT
// UniversalPrintArray(begin, len, os) prints an array of 'len'
// elements, starting at address 'begin'.
template <typename T>
void UniversalPrintArray(const T* begin, size_t len, ::std::ostream* os) {
if (len == 0) {
*os << "{}";
} else {
*os << "{ ";
const size_t kThreshold = 18;
const size_t kChunkSize = 8;
// If the array has more than kThreshold elements, we'll have to
// omit some details by printing only the first and the last
// kChunkSize elements.
if (len <= kThreshold) {
PrintRawArrayTo(begin, len, os);
} else {
PrintRawArrayTo(begin, kChunkSize, os);
*os << ", ..., ";
PrintRawArrayTo(begin + len - kChunkSize, kChunkSize, os);
}
*os << " }";
}
}
// This overload prints a (const) char array compactly.
GTEST_API_ void UniversalPrintArray(
const char* begin, size_t len, ::std::ostream* os);
#ifdef __cpp_char8_t
// This overload prints a (const) char8_t array compactly.
GTEST_API_ void UniversalPrintArray(const char8_t* begin, size_t len,
::std::ostream* os);
#endif
// This overload prints a (const) char16_t array compactly.
GTEST_API_ void UniversalPrintArray(const char16_t* begin, size_t len,
::std::ostream* os);
// This overload prints a (const) char32_t array compactly.
GTEST_API_ void UniversalPrintArray(const char32_t* begin, size_t len,
::std::ostream* os);
// This overload prints a (const) wchar_t array compactly.
GTEST_API_ void UniversalPrintArray(
const wchar_t* begin, size_t len, ::std::ostream* os);
// Implements printing an array type T[N].
template <typename T, size_t N>
class UniversalPrinter<T[N]> {
public:
// Prints the given array, omitting some elements when there are too
// many.
static void Print(const T (&a)[N], ::std::ostream* os) {
UniversalPrintArray(a, N, os);
}
};
// Implements printing a reference type T&.
template <typename T>
class UniversalPrinter<T&> {
public:
// MSVC warns about adding const to a function type, so we want to
// disable the warning.
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4180)
static void Print(const T& value, ::std::ostream* os) {
// Prints the address of the value. We use reinterpret_cast here
// as static_cast doesn't compile when T is a function type.
*os << "@" << reinterpret_cast<const void*>(&value) << " ";
// Then prints the value itself.
UniversalPrint(value, os);
}
GTEST_DISABLE_MSC_WARNINGS_POP_()
};
// Prints a value tersely: for a reference type, the referenced value
// (but not the address) is printed; for a (const) char pointer, the
// NUL-terminated string (but not the pointer) is printed.
template <typename T>
class UniversalTersePrinter {
public:
static void Print(const T& value, ::std::ostream* os) {
UniversalPrint(value, os);
}
};
template <typename T>
class UniversalTersePrinter<T&> {
public:
static void Print(const T& value, ::std::ostream* os) {
UniversalPrint(value, os);
}
};
template <typename T, size_t N>
class UniversalTersePrinter<T[N]> {
public:
static void Print(const T (&value)[N], ::std::ostream* os) {
UniversalPrinter<T[N]>::Print(value, os);
}
};
template <>
class UniversalTersePrinter<const char*> {
public:
static void Print(const char* str, ::std::ostream* os) {
if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(std::string(str), os);
}
}
};
template <>
class UniversalTersePrinter<char*> : public UniversalTersePrinter<const char*> {
};
#ifdef __cpp_char8_t
template <>
class UniversalTersePrinter<const char8_t*> {
public:
static void Print(const char8_t* str, ::std::ostream* os) {
if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(::std::u8string(str), os);
}
}
};
template <>
class UniversalTersePrinter<char8_t*>
: public UniversalTersePrinter<const char8_t*> {};
#endif
template <>
class UniversalTersePrinter<const char16_t*> {
public:
static void Print(const char16_t* str, ::std::ostream* os) {
if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(::std::u16string(str), os);
}
}
};
template <>
class UniversalTersePrinter<char16_t*>
: public UniversalTersePrinter<const char16_t*> {};
template <>
class UniversalTersePrinter<const char32_t*> {
public:
static void Print(const char32_t* str, ::std::ostream* os) {
if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(::std::u32string(str), os);
}
}
};
template <>
class UniversalTersePrinter<char32_t*>
: public UniversalTersePrinter<const char32_t*> {};
#if GTEST_HAS_STD_WSTRING
template <>
class UniversalTersePrinter<const wchar_t*> {
public:
static void Print(const wchar_t* str, ::std::ostream* os) {
if (str == nullptr) {
*os << "NULL";
} else {
UniversalPrint(::std::wstring(str), os);
}
}
};
#endif
template <>
class UniversalTersePrinter<wchar_t*> {
public:
static void Print(wchar_t* str, ::std::ostream* os) {
UniversalTersePrinter<const wchar_t*>::Print(str, os);
}
};
template <typename T>
void UniversalTersePrint(const T& value, ::std::ostream* os) {
UniversalTersePrinter<T>::Print(value, os);
}
// Prints a value using the type inferred by the compiler. The
// difference between this and UniversalTersePrint() is that for a
// (const) char pointer, this prints both the pointer and the
// NUL-terminated string.
template <typename T>
void UniversalPrint(const T& value, ::std::ostream* os) {
// A workarond for the bug in VC++ 7.1 that prevents us from instantiating
// UniversalPrinter with T directly.
typedef T T1;
UniversalPrinter<T1>::Print(value, os);
}
typedef ::std::vector< ::std::string> Strings;
// Tersely prints the first N fields of a tuple to a string vector,
// one element for each field.
template <typename Tuple>
void TersePrintPrefixToStrings(const Tuple&, std::integral_constant<size_t, 0>,
Strings*) {}
template <typename Tuple, size_t I>
void TersePrintPrefixToStrings(const Tuple& t,
std::integral_constant<size_t, I>,
Strings* strings) {
TersePrintPrefixToStrings(t, std::integral_constant<size_t, I - 1>(),
strings);
::std::stringstream ss;
UniversalTersePrint(std::get<I - 1>(t), &ss);
strings->push_back(ss.str());
}
// Prints the fields of a tuple tersely to a string vector, one
// element for each field. See the comment before
// UniversalTersePrint() for how we define "tersely".
template <typename Tuple>
Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) {
Strings result;
TersePrintPrefixToStrings(
value, std::integral_constant<size_t, std::tuple_size<Tuple>::value>(),
&result);
return result;
}
} // namespace internal
template <typename T>
::std::string PrintToString(const T& value) {
::std::stringstream ss;
internal::UniversalTersePrinter<T>::Print(value, &ss);
return ss.str();
}
} // namespace testing
// Include any custom printer added by the local installation.
// We must include this header at the end to make sure it can use the
// declarations from this file.
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This file provides an injection point for custom printers in a local
// installation of gTest.
// It will be included from gtest-printers.h and the overrides in this file
// will be visible to everyone.
//
// Injection point for custom user configurations. See README for details
//
// ** Custom implementation starts here **
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
// MSVC warning C5046 is new as of VS2017 version 15.8.
#if defined(_MSC_VER) && _MSC_VER >= 1915
#define GTEST_MAYBE_5046_ 5046
#else
#define GTEST_MAYBE_5046_
#endif
GTEST_DISABLE_MSC_WARNINGS_PUSH_(
4251 GTEST_MAYBE_5046_ /* class A needs to have dll-interface to be used by
clients of class B */
/* Symbol involving type with internal linkage not defined */)
namespace testing {
// To implement a matcher Foo for type T, define:
// 1. a class FooMatcherMatcher that implements the matcher interface:
// using is_gtest_matcher = void;
// bool MatchAndExplain(const T&, std::ostream*);
// (MatchResultListener* can also be used instead of std::ostream*)
// void DescribeTo(std::ostream*);
// void DescribeNegationTo(std::ostream*);
//
// 2. a factory function that creates a Matcher<T> object from a
// FooMatcherMatcher.
class MatchResultListener {
public:
// Creates a listener object with the given underlying ostream. The
// listener does not own the ostream, and does not dereference it
// in the constructor or destructor.
explicit MatchResultListener(::std::ostream* os) : stream_(os) {}
virtual ~MatchResultListener() = 0; // Makes this class abstract.
// Streams x to the underlying ostream; does nothing if the ostream
// is NULL.
template <typename T>
MatchResultListener& operator<<(const T& x) {
if (stream_ != nullptr) *stream_ << x;
return *this;
}
// Returns the underlying ostream.
::std::ostream* stream() { return stream_; }
// Returns true if and only if the listener is interested in an explanation
// of the match result. A matcher's MatchAndExplain() method can use
// this information to avoid generating the explanation when no one
// intends to hear it.
bool IsInterested() const { return stream_ != nullptr; }
private:
::std::ostream* const stream_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener);
};
inline MatchResultListener::~MatchResultListener() {
}
// An instance of a subclass of this knows how to describe itself as a
// matcher.
class GTEST_API_ MatcherDescriberInterface {
public:
virtual ~MatcherDescriberInterface() {}
// Describes this matcher to an ostream. The function should print
// a verb phrase that describes the property a value matching this
// matcher should have. The subject of the verb phrase is the value
// being matched. For example, the DescribeTo() method of the Gt(7)
// matcher prints "is greater than 7".
virtual void DescribeTo(::std::ostream* os) const = 0;
// Describes the negation of this matcher to an ostream. For
// example, if the description of this matcher is "is greater than
// 7", the negated description could be "is not greater than 7".
// You are not required to override this when implementing
// MatcherInterface, but it is highly advised so that your matcher
// can produce good error messages.
virtual void DescribeNegationTo(::std::ostream* os) const {
*os << "not (";
DescribeTo(os);
*os << ")";
}
};
// The implementation of a matcher.
template <typename T>
class MatcherInterface : public MatcherDescriberInterface {
public:
// Returns true if and only if the matcher matches x; also explains the
// match result to 'listener' if necessary (see the next paragraph), in
// the form of a non-restrictive relative clause ("which ...",
// "whose ...", etc) that describes x. For example, the
// MatchAndExplain() method of the Pointee(...) matcher should
// generate an explanation like "which points to ...".
//
// Implementations of MatchAndExplain() should add an explanation of
// the match result *if and only if* they can provide additional
// information that's not already present (or not obvious) in the
// print-out of x and the matcher's description. Whether the match
// succeeds is not a factor in deciding whether an explanation is
// needed, as sometimes the caller needs to print a failure message
// when the match succeeds (e.g. when the matcher is used inside
// Not()).
//
// For example, a "has at least 10 elements" matcher should explain
// what the actual element count is, regardless of the match result,
// as it is useful information to the reader; on the other hand, an
// "is empty" matcher probably only needs to explain what the actual
// size is when the match fails, as it's redundant to say that the
// size is 0 when the value is already known to be empty.
//
// You should override this method when defining a new matcher.
//
// It's the responsibility of the caller (Google Test) to guarantee
// that 'listener' is not NULL. This helps to simplify a matcher's
// implementation when it doesn't care about the performance, as it
// can talk to 'listener' without checking its validity first.
// However, in order to implement dummy listeners efficiently,
// listener->stream() may be NULL.
virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
// Inherits these methods from MatcherDescriberInterface:
// virtual void DescribeTo(::std::ostream* os) const = 0;
// virtual void DescribeNegationTo(::std::ostream* os) const;
};
namespace internal {
struct AnyEq {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a == b; }
};
struct AnyNe {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a != b; }
};
struct AnyLt {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a < b; }
};
struct AnyGt {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a > b; }
};
struct AnyLe {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a <= b; }
};
struct AnyGe {
template <typename A, typename B>
bool operator()(const A& a, const B& b) const { return a >= b; }
};
// A match result listener that ignores the explanation.
class DummyMatchResultListener : public MatchResultListener {
public:
DummyMatchResultListener() : MatchResultListener(nullptr) {}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener);
};
// A match result listener that forwards the explanation to a given
// ostream. The difference between this and MatchResultListener is
// that the former is concrete.
class StreamMatchResultListener : public MatchResultListener {
public:
explicit StreamMatchResultListener(::std::ostream* os)
: MatchResultListener(os) {}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener);
};
struct SharedPayloadBase {
std::atomic<int> ref{1};
void Ref() { ref.fetch_add(1, std::memory_order_relaxed); }
bool Unref() { return ref.fetch_sub(1, std::memory_order_acq_rel) == 1; }
};
template <typename T>
struct SharedPayload : SharedPayloadBase {
explicit SharedPayload(const T& v) : value(v) {}
explicit SharedPayload(T&& v) : value(std::move(v)) {}
static void Destroy(SharedPayloadBase* shared) {
delete static_cast<SharedPayload*>(shared);
}
T value;
};
// An internal class for implementing Matcher<T>, which will derive
// from it. We put functionalities common to all Matcher<T>
// specializations here to avoid code duplication.
template <typename T>
class MatcherBase : private MatcherDescriberInterface {
public:
// Returns true if and only if the matcher matches x; also explains the
// match result to 'listener'.
bool MatchAndExplain(const T& x, MatchResultListener* listener) const {
GTEST_CHECK_(vtable_ != nullptr);
return vtable_->match_and_explain(*this, x, listener);
}
// Returns true if and only if this matcher matches x.
bool Matches(const T& x) const {
DummyMatchResultListener dummy;
return MatchAndExplain(x, &dummy);
}
// Describes this matcher to an ostream.
void DescribeTo(::std::ostream* os) const final {
GTEST_CHECK_(vtable_ != nullptr);
vtable_->describe(*this, os, false);
}
// Describes the negation of this matcher to an ostream.
void DescribeNegationTo(::std::ostream* os) const final {
GTEST_CHECK_(vtable_ != nullptr);
vtable_->describe(*this, os, true);
}
// Explains why x matches, or doesn't match, the matcher.
void ExplainMatchResultTo(const T& x, ::std::ostream* os) const {
StreamMatchResultListener listener(os);
MatchAndExplain(x, &listener);
}
// Returns the describer for this matcher object; retains ownership
// of the describer, which is only guaranteed to be alive when
// this matcher object is alive.
const MatcherDescriberInterface* GetDescriber() const {
if (vtable_ == nullptr) return nullptr;
return vtable_->get_describer(*this);
}
protected:
MatcherBase() : vtable_(nullptr) {}
// Constructs a matcher from its implementation.
template <typename U>
explicit MatcherBase(const MatcherInterface<U>* impl) {
Init(impl);
}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
MatcherBase(M&& m) { // NOLINT
Init(std::forward<M>(m));
}
MatcherBase(const MatcherBase& other)
: vtable_(other.vtable_), buffer_(other.buffer_) {
if (IsShared()) buffer_.shared->Ref();
}
MatcherBase& operator=(const MatcherBase& other) {
if (this == &other) return *this;
Destroy();
vtable_ = other.vtable_;
buffer_ = other.buffer_;
if (IsShared()) buffer_.shared->Ref();
return *this;
}
MatcherBase(MatcherBase&& other)
: vtable_(other.vtable_), buffer_(other.buffer_) {
other.vtable_ = nullptr;
}
MatcherBase& operator=(MatcherBase&& other) {
if (this == &other) return *this;
Destroy();
vtable_ = other.vtable_;
buffer_ = other.buffer_;
other.vtable_ = nullptr;
return *this;
}
~MatcherBase() override { Destroy(); }
private:
struct VTable {
bool (*match_and_explain)(const MatcherBase&, const T&,
MatchResultListener*);
void (*describe)(const MatcherBase&, std::ostream*, bool negation);
// Returns the captured object if it implements the interface, otherwise
// returns the MatcherBase itself.
const MatcherDescriberInterface* (*get_describer)(const MatcherBase&);
// Called on shared instances when the reference count reaches 0.
void (*shared_destroy)(SharedPayloadBase*);
};
bool IsShared() const {
return vtable_ != nullptr && vtable_->shared_destroy != nullptr;
}
// If the implementation uses a listener, call that.
template <typename P>
static auto MatchAndExplainImpl(const MatcherBase& m, const T& value,
MatchResultListener* listener)
-> decltype(P::Get(m).MatchAndExplain(value, listener->stream())) {
return P::Get(m).MatchAndExplain(value, listener->stream());
}
template <typename P>
static auto MatchAndExplainImpl(const MatcherBase& m, const T& value,
MatchResultListener* listener)
-> decltype(P::Get(m).MatchAndExplain(value, listener)) {
return P::Get(m).MatchAndExplain(value, listener);
}
template <typename P>
static void DescribeImpl(const MatcherBase& m, std::ostream* os,
bool negation) {
if (negation) {
P::Get(m).DescribeNegationTo(os);
} else {
P::Get(m).DescribeTo(os);
}
}
template <typename P>
static const MatcherDescriberInterface* GetDescriberImpl(
const MatcherBase& m) {
// If the impl is a MatcherDescriberInterface, then return it.
// Otherwise use MatcherBase itself.
// This allows us to implement the GetDescriber() function without support
// from the impl, but some users really want to get their impl back when
// they call GetDescriber().
// We use std::get on a tuple as a workaround of not having `if constexpr`.
return std::get<(
std::is_convertible<decltype(&P::Get(m)),
const MatcherDescriberInterface*>::value
? 1
: 0)>(std::make_tuple(&m, &P::Get(m)));
}
template <typename P>
const VTable* GetVTable() {
static constexpr VTable kVTable = {&MatchAndExplainImpl<P>,
&DescribeImpl<P>, &GetDescriberImpl<P>,
P::shared_destroy};
return &kVTable;
}
union Buffer {
// Add some types to give Buffer some common alignment/size use cases.
void* ptr;
double d;
int64_t i;
// And add one for the out-of-line cases.
SharedPayloadBase* shared;
};
void Destroy() {
if (IsShared() && buffer_.shared->Unref()) {
vtable_->shared_destroy(buffer_.shared);
}
}
template <typename M>
static constexpr bool IsInlined() {
return sizeof(M) <= sizeof(Buffer) && alignof(M) <= alignof(Buffer) &&
std::is_trivially_copy_constructible<M>::value &&
std::is_trivially_destructible<M>::value;
}
template <typename M, bool = MatcherBase::IsInlined<M>()>
struct ValuePolicy {
static const M& Get(const MatcherBase& m) {
// When inlined along with Init, need to be explicit to avoid violating
// strict aliasing rules.
const M *ptr = static_cast<const M*>(
static_cast<const void*>(&m.buffer_));
return *ptr;
}
static void Init(MatcherBase& m, M impl) {
::new (static_cast<void*>(&m.buffer_)) M(impl);
}
static constexpr auto shared_destroy = nullptr;
};
template <typename M>
struct ValuePolicy<M, false> {
using Shared = SharedPayload<M>;
static const M& Get(const MatcherBase& m) {
return static_cast<Shared*>(m.buffer_.shared)->value;
}
template <typename Arg>
static void Init(MatcherBase& m, Arg&& arg) {
m.buffer_.shared = new Shared(std::forward<Arg>(arg));
}
static constexpr auto shared_destroy = &Shared::Destroy;
};
template <typename U, bool B>
struct ValuePolicy<const MatcherInterface<U>*, B> {
using M = const MatcherInterface<U>;
using Shared = SharedPayload<std::unique_ptr<M>>;
static const M& Get(const MatcherBase& m) {
return *static_cast<Shared*>(m.buffer_.shared)->value;
}
static void Init(MatcherBase& m, M* impl) {
m.buffer_.shared = new Shared(std::unique_ptr<M>(impl));
}
static constexpr auto shared_destroy = &Shared::Destroy;
};
template <typename M>
void Init(M&& m) {
using MM = typename std::decay<M>::type;
using Policy = ValuePolicy<MM>;
vtable_ = GetVTable<Policy>();
Policy::Init(*this, std::forward<M>(m));
}
const VTable* vtable_;
Buffer buffer_;
};
} // namespace internal
// A Matcher<T> is a copyable and IMMUTABLE (except by assignment)
// object that can check whether a value of type T matches. The
// implementation of Matcher<T> is just a std::shared_ptr to const
// MatcherInterface<T>. Don't inherit from Matcher!
template <typename T>
class Matcher : public internal::MatcherBase<T> {
public:
// Constructs a null matcher. Needed for storing Matcher objects in STL
// containers. A default-constructed matcher is not yet initialized. You
// cannot use it until a valid value has been assigned to it.
explicit Matcher() {} // NOLINT
// Constructs a matcher from its implementation.
explicit Matcher(const MatcherInterface<const T&>* impl)
: internal::MatcherBase<T>(impl) {}
template <typename U>
explicit Matcher(
const MatcherInterface<U>* impl,
typename std::enable_if<!std::is_same<U, const U&>::value>::type* =
nullptr)
: internal::MatcherBase<T>(impl) {}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
Matcher(M&& m) : internal::MatcherBase<T>(std::forward<M>(m)) {} // NOLINT
// Implicit constructor here allows people to write
// EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes
Matcher(T value); // NOLINT
};
// The following two specializations allow the user to write str
// instead of Eq(str) and "foo" instead of Eq("foo") when a std::string
// matcher is expected.
template <>
class GTEST_API_ Matcher<const std::string&>
: public internal::MatcherBase<const std::string&> {
public:
Matcher() {}
explicit Matcher(const MatcherInterface<const std::string&>* impl)
: internal::MatcherBase<const std::string&>(impl) {}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
Matcher(M&& m) // NOLINT
: internal::MatcherBase<const std::string&>(std::forward<M>(m)) {}
// Allows the user to write str instead of Eq(str) sometimes, where
// str is a std::string object.
Matcher(const std::string& s); // NOLINT
// Allows the user to write "foo" instead of Eq("foo") sometimes.
Matcher(const char* s); // NOLINT
};
template <>
class GTEST_API_ Matcher<std::string>
: public internal::MatcherBase<std::string> {
public:
Matcher() {}
explicit Matcher(const MatcherInterface<const std::string&>* impl)
: internal::MatcherBase<std::string>(impl) {}
explicit Matcher(const MatcherInterface<std::string>* impl)
: internal::MatcherBase<std::string>(impl) {}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
Matcher(M&& m) // NOLINT
: internal::MatcherBase<std::string>(std::forward<M>(m)) {}
// Allows the user to write str instead of Eq(str) sometimes, where
// str is a string object.
Matcher(const std::string& s); // NOLINT
// Allows the user to write "foo" instead of Eq("foo") sometimes.
Matcher(const char* s); // NOLINT
};
#if GTEST_INTERNAL_HAS_STRING_VIEW
// The following two specializations allow the user to write str
// instead of Eq(str) and "foo" instead of Eq("foo") when a absl::string_view
// matcher is expected.
template <>
class GTEST_API_ Matcher<const internal::StringView&>
: public internal::MatcherBase<const internal::StringView&> {
public:
Matcher() {}
explicit Matcher(const MatcherInterface<const internal::StringView&>* impl)
: internal::MatcherBase<const internal::StringView&>(impl) {}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
Matcher(M&& m) // NOLINT
: internal::MatcherBase<const internal::StringView&>(std::forward<M>(m)) {
}
// Allows the user to write str instead of Eq(str) sometimes, where
// str is a std::string object.
Matcher(const std::string& s); // NOLINT
// Allows the user to write "foo" instead of Eq("foo") sometimes.
Matcher(const char* s); // NOLINT
// Allows the user to pass absl::string_views or std::string_views directly.
Matcher(internal::StringView s); // NOLINT
};
template <>
class GTEST_API_ Matcher<internal::StringView>
: public internal::MatcherBase<internal::StringView> {
public:
Matcher() {}
explicit Matcher(const MatcherInterface<const internal::StringView&>* impl)
: internal::MatcherBase<internal::StringView>(impl) {}
explicit Matcher(const MatcherInterface<internal::StringView>* impl)
: internal::MatcherBase<internal::StringView>(impl) {}
template <typename M, typename = typename std::remove_reference<
M>::type::is_gtest_matcher>
Matcher(M&& m) // NOLINT
: internal::MatcherBase<internal::StringView>(std::forward<M>(m)) {}
// Allows the user to write str instead of Eq(str) sometimes, where
// str is a std::string object.
Matcher(const std::string& s); // NOLINT
// Allows the user to write "foo" instead of Eq("foo") sometimes.
Matcher(const char* s); // NOLINT
// Allows the user to pass absl::string_views or std::string_views directly.
Matcher(internal::StringView s); // NOLINT
};
#endif // GTEST_INTERNAL_HAS_STRING_VIEW
// Prints a matcher in a human-readable format.
template <typename T>
std::ostream& operator<<(std::ostream& os, const Matcher<T>& matcher) {
matcher.DescribeTo(&os);
return os;
}
// The PolymorphicMatcher class template makes it easy to implement a
// polymorphic matcher (i.e. a matcher that can match values of more
// than one type, e.g. Eq(n) and NotNull()).
//
// To define a polymorphic matcher, a user should provide an Impl
// class that has a DescribeTo() method and a DescribeNegationTo()
// method, and define a member function (or member function template)
//
// bool MatchAndExplain(const Value& value,
// MatchResultListener* listener) const;
//
// See the definition of NotNull() for a complete example.
template <class Impl>
class PolymorphicMatcher {
public:
explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {}
// Returns a mutable reference to the underlying matcher
// implementation object.
Impl& mutable_impl() { return impl_; }
// Returns an immutable reference to the underlying matcher
// implementation object.
const Impl& impl() const { return impl_; }
template <typename T>
operator Matcher<T>() const {
return Matcher<T>(new MonomorphicImpl<const T&>(impl_));
}
private:
template <typename T>
class MonomorphicImpl : public MatcherInterface<T> {
public:
explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
void DescribeTo(::std::ostream* os) const override { impl_.DescribeTo(os); }
void DescribeNegationTo(::std::ostream* os) const override {
impl_.DescribeNegationTo(os);
}
bool MatchAndExplain(T x, MatchResultListener* listener) const override {
return impl_.MatchAndExplain(x, listener);
}
private:
const Impl impl_;
};
Impl impl_;
};
// Creates a matcher from its implementation.
// DEPRECATED: Especially in the generic code, prefer:
// Matcher<T>(new MyMatcherImpl<const T&>(...));
//
// MakeMatcher may create a Matcher that accepts its argument by value, which
// leads to unnecessary copies & lack of support for non-copyable types.
template <typename T>
inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) {
return Matcher<T>(impl);
}
// Creates a polymorphic matcher from its implementation. This is
// easier to use than the PolymorphicMatcher<Impl> constructor as it
// doesn't require you to explicitly write the template argument, e.g.
//
// MakePolymorphicMatcher(foo);
// vs
// PolymorphicMatcher<TypeOfFoo>(foo);
template <class Impl>
inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) {
return PolymorphicMatcher<Impl>(impl);
}
namespace internal {
// Implements a matcher that compares a given value with a
// pre-supplied value using one of the ==, <=, <, etc, operators. The
// two values being compared don't have to have the same type.
//
// The matcher defined here is polymorphic (for example, Eq(5) can be
// used to match an int, a short, a double, etc). Therefore we use
// a template type conversion operator in the implementation.
//
// The following template definition assumes that the Rhs parameter is
// a "bare" type (i.e. neither 'const T' nor 'T&').
template <typename D, typename Rhs, typename Op>
class ComparisonBase {
public:
explicit ComparisonBase(const Rhs& rhs) : rhs_(rhs) {}
using is_gtest_matcher = void;
template <typename Lhs>
bool MatchAndExplain(const Lhs& lhs, std::ostream*) const {
return Op()(lhs, Unwrap(rhs_));
}
void DescribeTo(std::ostream* os) const {
*os << D::Desc() << " ";
UniversalPrint(Unwrap(rhs_), os);
}
void DescribeNegationTo(std::ostream* os) const {
*os << D::NegatedDesc() << " ";
UniversalPrint(Unwrap(rhs_), os);
}
private:
template <typename T>
static const T& Unwrap(const T& v) {
return v;
}
template <typename T>
static const T& Unwrap(std::reference_wrapper<T> v) {
return v;
}
Rhs rhs_;
};
template <typename Rhs>
class EqMatcher : public ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq> {
public:
explicit EqMatcher(const Rhs& rhs)
: ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq>(rhs) { }
static const char* Desc() { return "is equal to"; }
static const char* NegatedDesc() { return "isn't equal to"; }
};
template <typename Rhs>
class NeMatcher : public ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe> {
public:
explicit NeMatcher(const Rhs& rhs)
: ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe>(rhs) { }
static const char* Desc() { return "isn't equal to"; }
static const char* NegatedDesc() { return "is equal to"; }
};
template <typename Rhs>
class LtMatcher : public ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt> {
public:
explicit LtMatcher(const Rhs& rhs)
: ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt>(rhs) { }
static const char* Desc() { return "is <"; }
static const char* NegatedDesc() { return "isn't <"; }
};
template <typename Rhs>
class GtMatcher : public ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt> {
public:
explicit GtMatcher(const Rhs& rhs)
: ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt>(rhs) { }
static const char* Desc() { return "is >"; }
static const char* NegatedDesc() { return "isn't >"; }
};
template <typename Rhs>
class LeMatcher : public ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe> {
public:
explicit LeMatcher(const Rhs& rhs)
: ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe>(rhs) { }
static const char* Desc() { return "is <="; }
static const char* NegatedDesc() { return "isn't <="; }
};
template <typename Rhs>
class GeMatcher : public ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe> {
public:
explicit GeMatcher(const Rhs& rhs)
: ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe>(rhs) { }
static const char* Desc() { return "is >="; }
static const char* NegatedDesc() { return "isn't >="; }
};
template <typename T, typename = typename std::enable_if<
std::is_constructible<std::string, T>::value>::type>
using StringLike = T;
// Implements polymorphic matchers MatchesRegex(regex) and
// ContainsRegex(regex), which can be used as a Matcher<T> as long as
// T can be converted to a string.
class MatchesRegexMatcher {
public:
MatchesRegexMatcher(const RE* regex, bool full_match)
: regex_(regex), full_match_(full_match) {}
#if GTEST_INTERNAL_HAS_STRING_VIEW
bool MatchAndExplain(const internal::StringView& s,
MatchResultListener* listener) const {
return MatchAndExplain(std::string(s), listener);
}
#endif // GTEST_INTERNAL_HAS_STRING_VIEW
// Accepts pointer types, particularly:
// const char*
// char*
// const wchar_t*
// wchar_t*
template <typename CharType>
bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
return s != nullptr && MatchAndExplain(std::string(s), listener);
}
// Matches anything that can convert to std::string.
//
// This is a template, not just a plain function with const std::string&,
// because absl::string_view has some interfering non-explicit constructors.
template <class MatcheeStringType>
bool MatchAndExplain(const MatcheeStringType& s,
MatchResultListener* /* listener */) const {
const std::string& s2(s);
return full_match_ ? RE::FullMatch(s2, *regex_)
: RE::PartialMatch(s2, *regex_);
}
void DescribeTo(::std::ostream* os) const {
*os << (full_match_ ? "matches" : "contains") << " regular expression ";
UniversalPrinter<std::string>::Print(regex_->pattern(), os);
}
void DescribeNegationTo(::std::ostream* os) const {
*os << "doesn't " << (full_match_ ? "match" : "contain")
<< " regular expression ";
UniversalPrinter<std::string>::Print(regex_->pattern(), os);
}
private:
const std::shared_ptr<const RE> regex_;
const bool full_match_;
};
} // namespace internal
// Matches a string that fully matches regular expression 'regex'.
// The matcher takes ownership of 'regex'.
inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
const internal::RE* regex) {
return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true));
}
template <typename T = std::string>
PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
const internal::StringLike<T>& regex) {
return MatchesRegex(new internal::RE(std::string(regex)));
}
// Matches a string that contains regular expression 'regex'.
// The matcher takes ownership of 'regex'.
inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
const internal::RE* regex) {
return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false));
}
template <typename T = std::string>
PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
const internal::StringLike<T>& regex) {
return ContainsRegex(new internal::RE(std::string(regex)));
}
// Creates a polymorphic matcher that matches anything equal to x.
// Note: if the parameter of Eq() were declared as const T&, Eq("foo")
// wouldn't compile.
template <typename T>
inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); }
// Constructs a Matcher<T> from a 'value' of type T. The constructed
// matcher matches any value that's equal to 'value'.
template <typename T>
Matcher<T>::Matcher(T value) { *this = Eq(value); }
// Creates a monomorphic matcher that matches anything with type Lhs
// and equal to rhs. A user may need to use this instead of Eq(...)
// in order to resolve an overloading ambiguity.
//
// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x))
// or Matcher<T>(x), but more readable than the latter.
//
// We could define similar monomorphic matchers for other comparison
// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do
// it yet as those are used much less than Eq() in practice. A user
// can always write Matcher<T>(Lt(5)) to be explicit about the type,
// for example.
template <typename Lhs, typename Rhs>
inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); }
// Creates a polymorphic matcher that matches anything >= x.
template <typename Rhs>
inline internal::GeMatcher<Rhs> Ge(Rhs x) {
return internal::GeMatcher<Rhs>(x);
}
// Creates a polymorphic matcher that matches anything > x.
template <typename Rhs>
inline internal::GtMatcher<Rhs> Gt(Rhs x) {
return internal::GtMatcher<Rhs>(x);
}
// Creates a polymorphic matcher that matches anything <= x.
template <typename Rhs>
inline internal::LeMatcher<Rhs> Le(Rhs x) {
return internal::LeMatcher<Rhs>(x);
}
// Creates a polymorphic matcher that matches anything < x.
template <typename Rhs>
inline internal::LtMatcher<Rhs> Lt(Rhs x) {
return internal::LtMatcher<Rhs>(x);
}
// Creates a polymorphic matcher that matches anything != x.
template <typename Rhs>
inline internal::NeMatcher<Rhs> Ne(Rhs x) {
return internal::NeMatcher<Rhs>(x);
}
} // namespace testing
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251 5046
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_MATCHERS_H_
#include <stdio.h>
#include <memory>
namespace testing {
namespace internal {
GTEST_DECLARE_string_(internal_run_death_test);
// Names of the flags (needed for parsing Google Test flags).
const char kDeathTestStyleFlag[] = "death_test_style";
const char kDeathTestUseFork[] = "death_test_use_fork";
const char kInternalRunDeathTestFlag[] = "internal_run_death_test";
#if GTEST_HAS_DEATH_TEST
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
// DeathTest is a class that hides much of the complexity of the
// GTEST_DEATH_TEST_ macro. It is abstract; its static Create method
// returns a concrete class that depends on the prevailing death test
// style, as defined by the --gtest_death_test_style and/or
// --gtest_internal_run_death_test flags.
// In describing the results of death tests, these terms are used with
// the corresponding definitions:
//
// exit status: The integer exit information in the format specified
// by wait(2)
// exit code: The integer code passed to exit(3), _exit(2), or
// returned from main()
class GTEST_API_ DeathTest {
public:
// Create returns false if there was an error determining the
// appropriate action to take for the current death test; for example,
// if the gtest_death_test_style flag is set to an invalid value.
// The LastMessage method will return a more detailed message in that
// case. Otherwise, the DeathTest pointer pointed to by the "test"
// argument is set. If the death test should be skipped, the pointer
// is set to NULL; otherwise, it is set to the address of a new concrete
// DeathTest object that controls the execution of the current test.
static bool Create(const char* statement, Matcher<const std::string&> matcher,
const char* file, int line, DeathTest** test);
DeathTest();
virtual ~DeathTest() { }
// A helper class that aborts a death test when it's deleted.
class ReturnSentinel {
public:
explicit ReturnSentinel(DeathTest* test) : test_(test) { }
~ReturnSentinel() { test_->Abort(TEST_ENCOUNTERED_RETURN_STATEMENT); }
private:
DeathTest* const test_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ReturnSentinel);
} GTEST_ATTRIBUTE_UNUSED_;
// An enumeration of possible roles that may be taken when a death
// test is encountered. EXECUTE means that the death test logic should
// be executed immediately. OVERSEE means that the program should prepare
// the appropriate environment for a child process to execute the death
// test, then wait for it to complete.
enum TestRole { OVERSEE_TEST, EXECUTE_TEST };
// An enumeration of the three reasons that a test might be aborted.
enum AbortReason {
TEST_ENCOUNTERED_RETURN_STATEMENT,
TEST_THREW_EXCEPTION,
TEST_DID_NOT_DIE
};
// Assumes one of the above roles.
virtual TestRole AssumeRole() = 0;
// Waits for the death test to finish and returns its status.
virtual int Wait() = 0;
// Returns true if the death test passed; that is, the test process
// exited during the test, its exit status matches a user-supplied
// predicate, and its stderr output matches a user-supplied regular
// expression.
// The user-supplied predicate may be a macro expression rather
// than a function pointer or functor, or else Wait and Passed could
// be combined.
virtual bool Passed(bool exit_status_ok) = 0;
// Signals that the death test did not die as expected.
virtual void Abort(AbortReason reason) = 0;
// Returns a human-readable outcome message regarding the outcome of
// the last death test.
static const char* LastMessage();
static void set_last_death_test_message(const std::string& message);
private:
// A string containing a description of the outcome of the last death test.
static std::string last_death_test_message_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(DeathTest);
};
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
// Factory interface for death tests. May be mocked out for testing.
class DeathTestFactory {
public:
virtual ~DeathTestFactory() { }
virtual bool Create(const char* statement,
Matcher<const std::string&> matcher, const char* file,
int line, DeathTest** test) = 0;
};
// A concrete DeathTestFactory implementation for normal use.
class DefaultDeathTestFactory : public DeathTestFactory {
public:
bool Create(const char* statement, Matcher<const std::string&> matcher,
const char* file, int line, DeathTest** test) override;
};
// Returns true if exit_status describes a process that was terminated
// by a signal, or exited normally with a nonzero exit code.
GTEST_API_ bool ExitedUnsuccessfully(int exit_status);
// A string passed to EXPECT_DEATH (etc.) is caught by one of these overloads
// and interpreted as a regex (rather than an Eq matcher) for legacy
// compatibility.
inline Matcher<const ::std::string&> MakeDeathTestMatcher(
::testing::internal::RE regex) {
return ContainsRegex(regex.pattern());
}
inline Matcher<const ::std::string&> MakeDeathTestMatcher(const char* regex) {
return ContainsRegex(regex);
}
inline Matcher<const ::std::string&> MakeDeathTestMatcher(
const ::std::string& regex) {
return ContainsRegex(regex);
}
// If a Matcher<const ::std::string&> is passed to EXPECT_DEATH (etc.), it's
// used directly.
inline Matcher<const ::std::string&> MakeDeathTestMatcher(
Matcher<const ::std::string&> matcher) {
return matcher;
}
// Traps C++ exceptions escaping statement and reports them as test
// failures. Note that trapping SEH exceptions is not implemented here.
# if GTEST_HAS_EXCEPTIONS
# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \
try { \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
} catch (const ::std::exception& gtest_exception) { \
fprintf(\
stderr, \
"\n%s: Caught std::exception-derived exception escaping the " \
"death test statement. Exception message: %s\n", \
::testing::internal::FormatFileLocation(__FILE__, __LINE__).c_str(), \
gtest_exception.what()); \
fflush(stderr); \
death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \
} catch (...) { \
death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \
}
# else
# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement)
# endif
// This macro is for implementing ASSERT_DEATH*, EXPECT_DEATH*,
// ASSERT_EXIT*, and EXPECT_EXIT*.
#define GTEST_DEATH_TEST_(statement, predicate, regex_or_matcher, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::AlwaysTrue()) { \
::testing::internal::DeathTest* gtest_dt; \
if (!::testing::internal::DeathTest::Create( \
#statement, \
::testing::internal::MakeDeathTestMatcher(regex_or_matcher), \
__FILE__, __LINE__, &gtest_dt)) { \
goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \
} \
if (gtest_dt != nullptr) { \
std::unique_ptr< ::testing::internal::DeathTest> gtest_dt_ptr(gtest_dt); \
switch (gtest_dt->AssumeRole()) { \
case ::testing::internal::DeathTest::OVERSEE_TEST: \
if (!gtest_dt->Passed(predicate(gtest_dt->Wait()))) { \
goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \
} \
break; \
case ::testing::internal::DeathTest::EXECUTE_TEST: { \
::testing::internal::DeathTest::ReturnSentinel gtest_sentinel( \
gtest_dt); \
GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, gtest_dt); \
gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \
break; \
} \
default: \
break; \
} \
} \
} else \
GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__) \
: fail(::testing::internal::DeathTest::LastMessage())
// The symbol "fail" here expands to something into which a message
// can be streamed.
// This macro is for implementing ASSERT/EXPECT_DEBUG_DEATH when compiled in
// NDEBUG mode. In this case we need the statements to be executed and the macro
// must accept a streamed message even though the message is never printed.
// The regex object is not evaluated, but it is used to prevent "unused"
// warnings and to avoid an expression that doesn't compile in debug mode.
#define GTEST_EXECUTE_STATEMENT_(statement, regex_or_matcher) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::AlwaysTrue()) { \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
} else if (!::testing::internal::AlwaysTrue()) { \
::testing::internal::MakeDeathTestMatcher(regex_or_matcher); \
} else \
::testing::Message()
// A class representing the parsed contents of the
// --gtest_internal_run_death_test flag, as it existed when
// RUN_ALL_TESTS was called.
class InternalRunDeathTestFlag {
public:
InternalRunDeathTestFlag(const std::string& a_file,
int a_line,
int an_index,
int a_write_fd)
: file_(a_file), line_(a_line), index_(an_index),
write_fd_(a_write_fd) {}
~InternalRunDeathTestFlag() {
if (write_fd_ >= 0)
posix::Close(write_fd_);
}
const std::string& file() const { return file_; }
int line() const { return line_; }
int index() const { return index_; }
int write_fd() const { return write_fd_; }
private:
std::string file_;
int line_;
int index_;
int write_fd_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(InternalRunDeathTestFlag);
};
// Returns a newly created InternalRunDeathTestFlag object with fields
// initialized from the GTEST_FLAG(internal_run_death_test) flag if
// the flag is specified; otherwise returns NULL.
InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag();
#endif // GTEST_HAS_DEATH_TEST
} // namespace internal
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
namespace testing {
// This flag controls the style of death tests. Valid values are "threadsafe",
// meaning that the death test child process will re-execute the test binary
// from the start, running only a single death test, or "fast",
// meaning that the child process will execute the test logic immediately
// after forking.
GTEST_DECLARE_string_(death_test_style);
#if GTEST_HAS_DEATH_TEST
namespace internal {
// Returns a Boolean value indicating whether the caller is currently
// executing in the context of the death test child process. Tools such as
// Valgrind heap checkers may need this to modify their behavior in death
// tests. IMPORTANT: This is an internal utility. Using it may break the
// implementation of death tests. User code MUST NOT use it.
GTEST_API_ bool InDeathTestChild();
} // namespace internal
// The following macros are useful for writing death tests.
// Here's what happens when an ASSERT_DEATH* or EXPECT_DEATH* is
// executed:
//
// 1. It generates a warning if there is more than one active
// thread. This is because it's safe to fork() or clone() only
// when there is a single thread.
//
// 2. The parent process clone()s a sub-process and runs the death
// test in it; the sub-process exits with code 0 at the end of the
// death test, if it hasn't exited already.
//
// 3. The parent process waits for the sub-process to terminate.
//
// 4. The parent process checks the exit code and error message of
// the sub-process.
//
// Examples:
//
// ASSERT_DEATH(server.SendMessage(56, "Hello"), "Invalid port number");
// for (int i = 0; i < 5; i++) {
// EXPECT_DEATH(server.ProcessRequest(i),
// "Invalid request .* in ProcessRequest()")
// << "Failed to die on request " << i;
// }
//
// ASSERT_EXIT(server.ExitNow(), ::testing::ExitedWithCode(0), "Exiting");
//
// bool KilledBySIGHUP(int exit_code) {
// return WIFSIGNALED(exit_code) && WTERMSIG(exit_code) == SIGHUP;
// }
//
// ASSERT_EXIT(client.HangUpServer(), KilledBySIGHUP, "Hanging up!");
//
// The final parameter to each of these macros is a matcher applied to any data
// the sub-process wrote to stderr. For compatibility with existing tests, a
// bare string is interpreted as a regular expression matcher.
//
// On the regular expressions used in death tests:
//
// GOOGLETEST_CM0005 DO NOT DELETE
// On POSIX-compliant systems (*nix), we use the <regex.h> library,
// which uses the POSIX extended regex syntax.
//
// On other platforms (e.g. Windows or Mac), we only support a simple regex
// syntax implemented as part of Google Test. This limited
// implementation should be enough most of the time when writing
// death tests; though it lacks many features you can find in PCRE
// or POSIX extended regex syntax. For example, we don't support
// union ("x|y"), grouping ("(xy)"), brackets ("[xy]"), and
// repetition count ("x{5,7}"), among others.
//
// Below is the syntax that we do support. We chose it to be a
// subset of both PCRE and POSIX extended regex, so it's easy to
// learn wherever you come from. In the following: 'A' denotes a
// literal character, period (.), or a single \\ escape sequence;
// 'x' and 'y' denote regular expressions; 'm' and 'n' are for
// natural numbers.
//
// c matches any literal character c
// \\d matches any decimal digit
// \\D matches any character that's not a decimal digit
// \\f matches \f
// \\n matches \n
// \\r matches \r
// \\s matches any ASCII whitespace, including \n
// \\S matches any character that's not a whitespace
// \\t matches \t
// \\v matches \v
// \\w matches any letter, _, or decimal digit
// \\W matches any character that \\w doesn't match
// \\c matches any literal character c, which must be a punctuation
// . matches any single character except \n
// A? matches 0 or 1 occurrences of A
// A* matches 0 or many occurrences of A
// A+ matches 1 or many occurrences of A
// ^ matches the beginning of a string (not that of each line)
// $ matches the end of a string (not that of each line)
// xy matches x followed by y
//
// If you accidentally use PCRE or POSIX extended regex features
// not implemented by us, you will get a run-time failure. In that
// case, please try to rewrite your regular expression within the
// above syntax.
//
// This implementation is *not* meant to be as highly tuned or robust
// as a compiled regex library, but should perform well enough for a
// death test, which already incurs significant overhead by launching
// a child process.
//
// Known caveats:
//
// A "threadsafe" style death test obtains the path to the test
// program from argv[0] and re-executes it in the sub-process. For
// simplicity, the current implementation doesn't search the PATH
// when launching the sub-process. This means that the user must
// invoke the test program via a path that contains at least one
// path separator (e.g. path/to/foo_test and
// /absolute/path/to/bar_test are fine, but foo_test is not). This
// is rarely a problem as people usually don't put the test binary
// directory in PATH.
//
// Asserts that a given `statement` causes the program to exit, with an
// integer exit status that satisfies `predicate`, and emitting error output
// that matches `matcher`.
# define ASSERT_EXIT(statement, predicate, matcher) \
GTEST_DEATH_TEST_(statement, predicate, matcher, GTEST_FATAL_FAILURE_)
// Like `ASSERT_EXIT`, but continues on to successive tests in the
// test suite, if any:
# define EXPECT_EXIT(statement, predicate, matcher) \
GTEST_DEATH_TEST_(statement, predicate, matcher, GTEST_NONFATAL_FAILURE_)
// Asserts that a given `statement` causes the program to exit, either by
// explicitly exiting with a nonzero exit code or being killed by a
// signal, and emitting error output that matches `matcher`.
# define ASSERT_DEATH(statement, matcher) \
ASSERT_EXIT(statement, ::testing::internal::ExitedUnsuccessfully, matcher)
// Like `ASSERT_DEATH`, but continues on to successive tests in the
// test suite, if any:
# define EXPECT_DEATH(statement, matcher) \
EXPECT_EXIT(statement, ::testing::internal::ExitedUnsuccessfully, matcher)
// Two predicate classes that can be used in {ASSERT,EXPECT}_EXIT*:
// Tests that an exit code describes a normal exit with a given exit code.
class GTEST_API_ ExitedWithCode {
public:
explicit ExitedWithCode(int exit_code);
ExitedWithCode(const ExitedWithCode&) = default;
void operator=(const ExitedWithCode& other) = delete;
bool operator()(int exit_status) const;
private:
const int exit_code_;
};
# if !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA
// Tests that an exit code describes an exit due to termination by a
// given signal.
// GOOGLETEST_CM0006 DO NOT DELETE
class GTEST_API_ KilledBySignal {
public:
explicit KilledBySignal(int signum);
bool operator()(int exit_status) const;
private:
const int signum_;
};
# endif // !GTEST_OS_WINDOWS
// EXPECT_DEBUG_DEATH asserts that the given statements die in debug mode.
// The death testing framework causes this to have interesting semantics,
// since the sideeffects of the call are only visible in opt mode, and not
// in debug mode.
//
// In practice, this can be used to test functions that utilize the
// LOG(DFATAL) macro using the following style:
//
// int DieInDebugOr12(int* sideeffect) {
// if (sideeffect) {
// *sideeffect = 12;
// }
// LOG(DFATAL) << "death";
// return 12;
// }
//
// TEST(TestSuite, TestDieOr12WorksInDgbAndOpt) {
// int sideeffect = 0;
// // Only asserts in dbg.
// EXPECT_DEBUG_DEATH(DieInDebugOr12(&sideeffect), "death");
//
// #ifdef NDEBUG
// // opt-mode has sideeffect visible.
// EXPECT_EQ(12, sideeffect);
// #else
// // dbg-mode no visible sideeffect.
// EXPECT_EQ(0, sideeffect);
// #endif
// }
//
// This will assert that DieInDebugReturn12InOpt() crashes in debug
// mode, usually due to a DCHECK or LOG(DFATAL), but returns the
// appropriate fallback value (12 in this case) in opt mode. If you
// need to test that a function has appropriate side-effects in opt
// mode, include assertions against the side-effects. A general
// pattern for this is:
//
// EXPECT_DEBUG_DEATH({
// // Side-effects here will have an effect after this statement in
// // opt mode, but none in debug mode.
// EXPECT_EQ(12, DieInDebugOr12(&sideeffect));
// }, "death");
//
# ifdef NDEBUG
# define EXPECT_DEBUG_DEATH(statement, regex) \
GTEST_EXECUTE_STATEMENT_(statement, regex)
# define ASSERT_DEBUG_DEATH(statement, regex) \
GTEST_EXECUTE_STATEMENT_(statement, regex)
# else
# define EXPECT_DEBUG_DEATH(statement, regex) \
EXPECT_DEATH(statement, regex)
# define ASSERT_DEBUG_DEATH(statement, regex) \
ASSERT_DEATH(statement, regex)
# endif // NDEBUG for EXPECT_DEBUG_DEATH
#endif // GTEST_HAS_DEATH_TEST
// This macro is used for implementing macros such as
// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
// death tests are not supported. Those macros must compile on such systems
// if and only if EXPECT_DEATH and ASSERT_DEATH compile with the same parameters
// on systems that support death tests. This allows one to write such a macro on
// a system that does not support death tests and be sure that it will compile
// on a death-test supporting system. It is exposed publicly so that systems
// that have death-tests with stricter requirements than GTEST_HAS_DEATH_TEST
// can write their own equivalent of EXPECT_DEATH_IF_SUPPORTED and
// ASSERT_DEATH_IF_SUPPORTED.
//
// Parameters:
// statement - A statement that a macro such as EXPECT_DEATH would test
// for program termination. This macro has to make sure this
// statement is compiled but not executed, to ensure that
// EXPECT_DEATH_IF_SUPPORTED compiles with a certain
// parameter if and only if EXPECT_DEATH compiles with it.
// regex - A regex that a macro such as EXPECT_DEATH would use to test
// the output of statement. This parameter has to be
// compiled but not evaluated by this macro, to ensure that
// this macro only accepts expressions that a macro such as
// EXPECT_DEATH would accept.
// terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
// and a return statement for ASSERT_DEATH_IF_SUPPORTED.
// This ensures that ASSERT_DEATH_IF_SUPPORTED will not
// compile inside functions where ASSERT_DEATH doesn't
// compile.
//
// The branch that has an always false condition is used to ensure that
// statement and regex are compiled (and thus syntactically correct) but
// never executed. The unreachable code macro protects the terminator
// statement from generating an 'unreachable code' warning in case
// statement unconditionally returns or throws. The Message constructor at
// the end allows the syntax of streaming additional messages into the
// macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
# define GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, terminator) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (::testing::internal::AlwaysTrue()) { \
GTEST_LOG_(WARNING) \
<< "Death tests are not supported on this platform.\n" \
<< "Statement '" #statement "' cannot be verified."; \
} else if (::testing::internal::AlwaysFalse()) { \
::testing::internal::RE::PartialMatch(".*", (regex)); \
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
terminator; \
} else \
::testing::Message()
// EXPECT_DEATH_IF_SUPPORTED(statement, regex) and
// ASSERT_DEATH_IF_SUPPORTED(statement, regex) expand to real death tests if
// death tests are supported; otherwise they just issue a warning. This is
// useful when you are combining death test assertions with normal test
// assertions in one test.
#if GTEST_HAS_DEATH_TEST
# define EXPECT_DEATH_IF_SUPPORTED(statement, regex) \
EXPECT_DEATH(statement, regex)
# define ASSERT_DEATH_IF_SUPPORTED(statement, regex) \
ASSERT_DEATH(statement, regex)
#else
# define EXPECT_DEATH_IF_SUPPORTED(statement, regex) \
GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, )
# define ASSERT_DEATH_IF_SUPPORTED(statement, regex) \
GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, return)
#endif
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_DEATH_TEST_H_
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Macros and functions for implementing parameterized tests
// in Google C++ Testing and Mocking Framework (Google Test)
//
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
// Value-parameterized tests allow you to test your code with different
// parameters without writing multiple copies of the same test.
//
// Here is how you use value-parameterized tests:
#if 0
// To write value-parameterized tests, first you should define a fixture
// class. It is usually derived from testing::TestWithParam<T> (see below for
// another inheritance scheme that's sometimes useful in more complicated
// class hierarchies), where the type of your parameter values.
// TestWithParam<T> is itself derived from testing::Test. T can be any
// copyable type. If it's a raw pointer, you are responsible for managing the
// lifespan of the pointed values.
class FooTest : public ::testing::TestWithParam<const char*> {
// You can implement all the usual class fixture members here.
};
// Then, use the TEST_P macro to define as many parameterized tests
// for this fixture as you want. The _P suffix is for "parameterized"
// or "pattern", whichever you prefer to think.
TEST_P(FooTest, DoesBlah) {
// Inside a test, access the test parameter with the GetParam() method
// of the TestWithParam<T> class:
EXPECT_TRUE(foo.Blah(GetParam()));
...
}
TEST_P(FooTest, HasBlahBlah) {
...
}
// Finally, you can use INSTANTIATE_TEST_SUITE_P to instantiate the test
// case with any set of parameters you want. Google Test defines a number
// of functions for generating test parameters. They return what we call
// (surprise!) parameter generators. Here is a summary of them, which
// are all in the testing namespace:
//
//
// Range(begin, end [, step]) - Yields values {begin, begin+step,
// begin+step+step, ...}. The values do not
// include end. step defaults to 1.
// Values(v1, v2, ..., vN) - Yields values {v1, v2, ..., vN}.
// ValuesIn(container) - Yields values from a C-style array, an STL
// ValuesIn(begin,end) container, or an iterator range [begin, end).
// Bool() - Yields sequence {false, true}.
// Combine(g1, g2, ..., gN) - Yields all combinations (the Cartesian product
// for the math savvy) of the values generated
// by the N generators.
//
// For more details, see comments at the definitions of these functions below
// in this file.
//
// The following statement will instantiate tests from the FooTest test suite
// each with parameter values "meeny", "miny", and "moe".
INSTANTIATE_TEST_SUITE_P(InstantiationName,
FooTest,
Values("meeny", "miny", "moe"));
// To distinguish different instances of the pattern, (yes, you
// can instantiate it more than once) the first argument to the
// INSTANTIATE_TEST_SUITE_P macro is a prefix that will be added to the
// actual test suite name. Remember to pick unique prefixes for different
// instantiations. The tests from the instantiation above will have
// these names:
//
// * InstantiationName/FooTest.DoesBlah/0 for "meeny"
// * InstantiationName/FooTest.DoesBlah/1 for "miny"
// * InstantiationName/FooTest.DoesBlah/2 for "moe"
// * InstantiationName/FooTest.HasBlahBlah/0 for "meeny"
// * InstantiationName/FooTest.HasBlahBlah/1 for "miny"
// * InstantiationName/FooTest.HasBlahBlah/2 for "moe"
//
// You can use these names in --gtest_filter.
//
// This statement will instantiate all tests from FooTest again, each
// with parameter values "cat" and "dog":
const char* pets[] = {"cat", "dog"};
INSTANTIATE_TEST_SUITE_P(AnotherInstantiationName, FooTest, ValuesIn(pets));
// The tests from the instantiation above will have these names:
//
// * AnotherInstantiationName/FooTest.DoesBlah/0 for "cat"
// * AnotherInstantiationName/FooTest.DoesBlah/1 for "dog"
// * AnotherInstantiationName/FooTest.HasBlahBlah/0 for "cat"
// * AnotherInstantiationName/FooTest.HasBlahBlah/1 for "dog"
//
// Please note that INSTANTIATE_TEST_SUITE_P will instantiate all tests
// in the given test suite, whether their definitions come before or
// AFTER the INSTANTIATE_TEST_SUITE_P statement.
//
// Please also note that generator expressions (including parameters to the
// generators) are evaluated in InitGoogleTest(), after main() has started.
// This allows the user on one hand, to adjust generator parameters in order
// to dynamically determine a set of tests to run and on the other hand,
// give the user a chance to inspect the generated tests with Google Test
// reflection API before RUN_ALL_TESTS() is executed.
//
// You can see samples/sample7_unittest.cc and samples/sample8_unittest.cc
// for more examples.
//
// In the future, we plan to publish the API for defining new parameter
// generators. But for now this interface remains part of the internal
// implementation and is subject to change.
//
//
// A parameterized test fixture must be derived from testing::Test and from
// testing::WithParamInterface<T>, where T is the type of the parameter
// values. Inheriting from TestWithParam<T> satisfies that requirement because
// TestWithParam<T> inherits from both Test and WithParamInterface. In more
// complicated hierarchies, however, it is occasionally useful to inherit
// separately from Test and WithParamInterface. For example:
class BaseTest : public ::testing::Test {
// You can inherit all the usual members for a non-parameterized test
// fixture here.
};
class DerivedTest : public BaseTest, public ::testing::WithParamInterface<int> {
// The usual test fixture members go here too.
};
TEST_F(BaseTest, HasFoo) {
// This is an ordinary non-parameterized test.
}
TEST_P(DerivedTest, DoesBlah) {
// GetParam works just the same here as if you inherit from TestWithParam.
EXPECT_TRUE(foo.Blah(GetParam()));
}
#endif // 0
#include <iterator>
#include <utility>
// Copyright 2008 Google Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Type and function utilities for implementing parameterized tests.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
#define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
#include <ctype.h>
#include <cassert>
#include <iterator>
#include <memory>
#include <set>
#include <tuple>
#include <type_traits>
#include <utility>
#include <vector>
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
#include <iosfwd>
#include <vector>
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
namespace testing {
// A copyable object representing the result of a test part (i.e. an
// assertion or an explicit FAIL(), ADD_FAILURE(), or SUCCESS()).
//
// Don't inherit from TestPartResult as its destructor is not virtual.
class GTEST_API_ TestPartResult {
public:
// The possible outcomes of a test part (i.e. an assertion or an
// explicit SUCCEED(), FAIL(), or ADD_FAILURE()).
enum Type {
kSuccess, // Succeeded.
kNonFatalFailure, // Failed but the test can continue.
kFatalFailure, // Failed and the test should be terminated.
kSkip // Skipped.
};
// C'tor. TestPartResult does NOT have a default constructor.
// Always use this constructor (with parameters) to create a
// TestPartResult object.
TestPartResult(Type a_type, const char* a_file_name, int a_line_number,
const char* a_message)
: type_(a_type),
file_name_(a_file_name == nullptr ? "" : a_file_name),
line_number_(a_line_number),
summary_(ExtractSummary(a_message)),
message_(a_message) {}
// Gets the outcome of the test part.
Type type() const { return type_; }
// Gets the name of the source file where the test part took place, or
// NULL if it's unknown.
const char* file_name() const {
return file_name_.empty() ? nullptr : file_name_.c_str();
}
// Gets the line in the source file where the test part took place,
// or -1 if it's unknown.
int line_number() const { return line_number_; }
// Gets the summary of the failure message.
const char* summary() const { return summary_.c_str(); }
// Gets the message associated with the test part.
const char* message() const { return message_.c_str(); }
// Returns true if and only if the test part was skipped.
bool skipped() const { return type_ == kSkip; }
// Returns true if and only if the test part passed.
bool passed() const { return type_ == kSuccess; }
// Returns true if and only if the test part non-fatally failed.
bool nonfatally_failed() const { return type_ == kNonFatalFailure; }
// Returns true if and only if the test part fatally failed.
bool fatally_failed() const { return type_ == kFatalFailure; }
// Returns true if and only if the test part failed.
bool failed() const { return fatally_failed() || nonfatally_failed(); }
private:
Type type_;
// Gets the summary of the failure message by omitting the stack
// trace in it.
static std::string ExtractSummary(const char* message);
// The name of the source file where the test part took place, or
// "" if the source file is unknown.
std::string file_name_;
// The line in the source file where the test part took place, or -1
// if the line number is unknown.
int line_number_;
std::string summary_; // The test failure summary.
std::string message_; // The test failure message.
};
// Prints a TestPartResult object.
std::ostream& operator<<(std::ostream& os, const TestPartResult& result);
// An array of TestPartResult objects.
//
// Don't inherit from TestPartResultArray as its destructor is not
// virtual.
class GTEST_API_ TestPartResultArray {
public:
TestPartResultArray() {}
// Appends the given TestPartResult to the array.
void Append(const TestPartResult& result);
// Returns the TestPartResult at the given index (0-based).
const TestPartResult& GetTestPartResult(int index) const;
// Returns the number of TestPartResult objects in the array.
int size() const;
private:
std::vector<TestPartResult> array_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestPartResultArray);
};
// This interface knows how to report a test part result.
class GTEST_API_ TestPartResultReporterInterface {
public:
virtual ~TestPartResultReporterInterface() {}
virtual void ReportTestPartResult(const TestPartResult& result) = 0;
};
namespace internal {
// This helper class is used by {ASSERT|EXPECT}_NO_FATAL_FAILURE to check if a
// statement generates new fatal failures. To do so it registers itself as the
// current test part result reporter. Besides checking if fatal failures were
// reported, it only delegates the reporting to the former result reporter.
// The original result reporter is restored in the destructor.
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
class GTEST_API_ HasNewFatalFailureHelper
: public TestPartResultReporterInterface {
public:
HasNewFatalFailureHelper();
~HasNewFatalFailureHelper() override;
void ReportTestPartResult(const TestPartResult& result) override;
bool has_new_fatal_failure() const { return has_new_fatal_failure_; }
private:
bool has_new_fatal_failure_;
TestPartResultReporterInterface* original_reporter_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(HasNewFatalFailureHelper);
};
} // namespace internal
} // namespace testing
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
namespace testing {
// Input to a parameterized test name generator, describing a test parameter.
// Consists of the parameter value and the integer parameter index.
template <class ParamType>
struct TestParamInfo {
TestParamInfo(const ParamType& a_param, size_t an_index) :
param(a_param),
index(an_index) {}
ParamType param;
size_t index;
};
// A builtin parameterized test name generator which returns the result of
// testing::PrintToString.
struct PrintToStringParamName {
template <class ParamType>
std::string operator()(const TestParamInfo<ParamType>& info) const {
return PrintToString(info.param);
}
};
namespace internal {
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
// Utility Functions
// Outputs a message explaining invalid registration of different
// fixture class for the same test suite. This may happen when
// TEST_P macro is used to define two tests with the same name
// but in different namespaces.
GTEST_API_ void ReportInvalidTestSuiteType(const char* test_suite_name,
CodeLocation code_location);
template <typename> class ParamGeneratorInterface;
template <typename> class ParamGenerator;
// Interface for iterating over elements provided by an implementation
// of ParamGeneratorInterface<T>.
template <typename T>
class ParamIteratorInterface {
public:
virtual ~ParamIteratorInterface() {}
// A pointer to the base generator instance.
// Used only for the purposes of iterator comparison
// to make sure that two iterators belong to the same generator.
virtual const ParamGeneratorInterface<T>* BaseGenerator() const = 0;
// Advances iterator to point to the next element
// provided by the generator. The caller is responsible
// for not calling Advance() on an iterator equal to
// BaseGenerator()->End().
virtual void Advance() = 0;
// Clones the iterator object. Used for implementing copy semantics
// of ParamIterator<T>.
virtual ParamIteratorInterface* Clone() const = 0;
// Dereferences the current iterator and provides (read-only) access
// to the pointed value. It is the caller's responsibility not to call
// Current() on an iterator equal to BaseGenerator()->End().
// Used for implementing ParamGenerator<T>::operator*().
virtual const T* Current() const = 0;
// Determines whether the given iterator and other point to the same
// element in the sequence generated by the generator.
// Used for implementing ParamGenerator<T>::operator==().
virtual bool Equals(const ParamIteratorInterface& other) const = 0;
};
// Class iterating over elements provided by an implementation of
// ParamGeneratorInterface<T>. It wraps ParamIteratorInterface<T>
// and implements the const forward iterator concept.
template <typename T>
class ParamIterator {
public:
typedef T value_type;
typedef const T& reference;
typedef ptrdiff_t difference_type;
// ParamIterator assumes ownership of the impl_ pointer.
ParamIterator(const ParamIterator& other) : impl_(other.impl_->Clone()) {}
ParamIterator& operator=(const ParamIterator& other) {
if (this != &other)
impl_.reset(other.impl_->Clone());
return *this;
}
const T& operator*() const { return *impl_->Current(); }
const T* operator->() const { return impl_->Current(); }
// Prefix version of operator++.
ParamIterator& operator++() {
impl_->Advance();
return *this;
}
// Postfix version of operator++.
ParamIterator operator++(int /*unused*/) {
ParamIteratorInterface<T>* clone = impl_->Clone();
impl_->Advance();
return ParamIterator(clone);
}
bool operator==(const ParamIterator& other) const {
return impl_.get() == other.impl_.get() || impl_->Equals(*other.impl_);
}
bool operator!=(const ParamIterator& other) const {
return !(*this == other);
}
private:
friend class ParamGenerator<T>;
explicit ParamIterator(ParamIteratorInterface<T>* impl) : impl_(impl) {}
std::unique_ptr<ParamIteratorInterface<T> > impl_;
};
// ParamGeneratorInterface<T> is the binary interface to access generators
// defined in other translation units.
template <typename T>
class ParamGeneratorInterface {
public:
typedef T ParamType;
virtual ~ParamGeneratorInterface() {}
// Generator interface definition
virtual ParamIteratorInterface<T>* Begin() const = 0;
virtual ParamIteratorInterface<T>* End() const = 0;
};
// Wraps ParamGeneratorInterface<T> and provides general generator syntax
// compatible with the STL Container concept.
// This class implements copy initialization semantics and the contained
// ParamGeneratorInterface<T> instance is shared among all copies
// of the original object. This is possible because that instance is immutable.
template<typename T>
class ParamGenerator {
public:
typedef ParamIterator<T> iterator;
explicit ParamGenerator(ParamGeneratorInterface<T>* impl) : impl_(impl) {}
ParamGenerator(const ParamGenerator& other) : impl_(other.impl_) {}
ParamGenerator& operator=(const ParamGenerator& other) {
impl_ = other.impl_;
return *this;
}
iterator begin() const { return iterator(impl_->Begin()); }
iterator end() const { return iterator(impl_->End()); }
private:
std::shared_ptr<const ParamGeneratorInterface<T> > impl_;
};
// Generates values from a range of two comparable values. Can be used to
// generate sequences of user-defined types that implement operator+() and
// operator<().
// This class is used in the Range() function.
template <typename T, typename IncrementT>
class RangeGenerator : public ParamGeneratorInterface<T> {
public:
RangeGenerator(T begin, T end, IncrementT step)
: begin_(begin), end_(end),
step_(step), end_index_(CalculateEndIndex(begin, end, step)) {}
~RangeGenerator() override {}
ParamIteratorInterface<T>* Begin() const override {
return new Iterator(this, begin_, 0, step_);
}
ParamIteratorInterface<T>* End() const override {
return new Iterator(this, end_, end_index_, step_);
}
private:
class Iterator : public ParamIteratorInterface<T> {
public:
Iterator(const ParamGeneratorInterface<T>* base, T value, int index,
IncrementT step)
: base_(base), value_(value), index_(index), step_(step) {}
~Iterator() override {}
const ParamGeneratorInterface<T>* BaseGenerator() const override {
return base_;
}
void Advance() override {
value_ = static_cast<T>(value_ + step_);
index_++;
}
ParamIteratorInterface<T>* Clone() const override {
return new Iterator(*this);
}
const T* Current() const override { return &value_; }
bool Equals(const ParamIteratorInterface<T>& other) const override {
// Having the same base generator guarantees that the other
// iterator is of the same type and we can downcast.
GTEST_CHECK_(BaseGenerator() == other.BaseGenerator())
<< "The program attempted to compare iterators "
<< "from different generators." << std::endl;
const int other_index =
CheckedDowncastToActualType<const Iterator>(&other)->index_;
return index_ == other_index;
}
private:
Iterator(const Iterator& other)
: ParamIteratorInterface<T>(),
base_(other.base_), value_(other.value_), index_(other.index_),
step_(other.step_) {}
// No implementation - assignment is unsupported.
void operator=(const Iterator& other);
const ParamGeneratorInterface<T>* const base_;
T value_;
int index_;
const IncrementT step_;
}; // class RangeGenerator::Iterator
static int CalculateEndIndex(const T& begin,
const T& end,
const IncrementT& step) {
int end_index = 0;
for (T i = begin; i < end; i = static_cast<T>(i + step))
end_index++;
return end_index;
}
// No implementation - assignment is unsupported.
void operator=(const RangeGenerator& other);
const T begin_;
const T end_;
const IncrementT step_;
// The index for the end() iterator. All the elements in the generated
// sequence are indexed (0-based) to aid iterator comparison.
const int end_index_;
}; // class RangeGenerator
// Generates values from a pair of STL-style iterators. Used in the
// ValuesIn() function. The elements are copied from the source range
// since the source can be located on the stack, and the generator
// is likely to persist beyond that stack frame.
template <typename T>
class ValuesInIteratorRangeGenerator : public ParamGeneratorInterface<T> {
public:
template <typename ForwardIterator>
ValuesInIteratorRangeGenerator(ForwardIterator begin, ForwardIterator end)
: container_(begin, end) {}
~ValuesInIteratorRangeGenerator() override {}
ParamIteratorInterface<T>* Begin() const override {
return new Iterator(this, container_.begin());
}
ParamIteratorInterface<T>* End() const override {
return new Iterator(this, container_.end());
}
private:
typedef typename ::std::vector<T> ContainerType;
class Iterator : public ParamIteratorInterface<T> {
public:
Iterator(const ParamGeneratorInterface<T>* base,
typename ContainerType::const_iterator iterator)
: base_(base), iterator_(iterator) {}
~Iterator() override {}
const ParamGeneratorInterface<T>* BaseGenerator() const override {
return base_;
}
void Advance() override {
++iterator_;
value_.reset();
}
ParamIteratorInterface<T>* Clone() const override {
return new Iterator(*this);
}
// We need to use cached value referenced by iterator_ because *iterator_
// can return a temporary object (and of type other then T), so just
// having "return &*iterator_;" doesn't work.
// value_ is updated here and not in Advance() because Advance()
// can advance iterator_ beyond the end of the range, and we cannot
// detect that fact. The client code, on the other hand, is
// responsible for not calling Current() on an out-of-range iterator.
const T* Current() const override {
if (value_.get() == nullptr) value_.reset(new T(*iterator_));
return value_.get();
}
bool Equals(const ParamIteratorInterface<T>& other) const override {
// Having the same base generator guarantees that the other
// iterator is of the same type and we can downcast.
GTEST_CHECK_(BaseGenerator() == other.BaseGenerator())
<< "The program attempted to compare iterators "
<< "from different generators." << std::endl;
return iterator_ ==
CheckedDowncastToActualType<const Iterator>(&other)->iterator_;
}
private:
Iterator(const Iterator& other)
// The explicit constructor call suppresses a false warning
// emitted by gcc when supplied with the -Wextra option.
: ParamIteratorInterface<T>(),
base_(other.base_),
iterator_(other.iterator_) {}
const ParamGeneratorInterface<T>* const base_;
typename ContainerType::const_iterator iterator_;
// A cached value of *iterator_. We keep it here to allow access by
// pointer in the wrapping iterator's operator->().
// value_ needs to be mutable to be accessed in Current().
// Use of std::unique_ptr helps manage cached value's lifetime,
// which is bound by the lifespan of the iterator itself.
mutable std::unique_ptr<const T> value_;
}; // class ValuesInIteratorRangeGenerator::Iterator
// No implementation - assignment is unsupported.
void operator=(const ValuesInIteratorRangeGenerator& other);
const ContainerType container_;
}; // class ValuesInIteratorRangeGenerator
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Default parameterized test name generator, returns a string containing the
// integer test parameter index.
template <class ParamType>
std::string DefaultParamName(const TestParamInfo<ParamType>& info) {
Message name_stream;
name_stream << info.index;
return name_stream.GetString();
}
template <typename T = int>
void TestNotEmpty() {
static_assert(sizeof(T) == 0, "Empty arguments are not allowed.");
}
template <typename T = int>
void TestNotEmpty(const T&) {}
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Stores a parameter value and later creates tests parameterized with that
// value.
template <class TestClass>
class ParameterizedTestFactory : public TestFactoryBase {
public:
typedef typename TestClass::ParamType ParamType;
explicit ParameterizedTestFactory(ParamType parameter) :
parameter_(parameter) {}
Test* CreateTest() override {
TestClass::SetParam(&parameter_);
return new TestClass();
}
private:
const ParamType parameter_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ParameterizedTestFactory);
};
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// TestMetaFactoryBase is a base class for meta-factories that create
// test factories for passing into MakeAndRegisterTestInfo function.
template <class ParamType>
class TestMetaFactoryBase {
public:
virtual ~TestMetaFactoryBase() {}
virtual TestFactoryBase* CreateTestFactory(ParamType parameter) = 0;
};
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// TestMetaFactory creates test factories for passing into
// MakeAndRegisterTestInfo function. Since MakeAndRegisterTestInfo receives
// ownership of test factory pointer, same factory object cannot be passed
// into that method twice. But ParameterizedTestSuiteInfo is going to call
// it for each Test/Parameter value combination. Thus it needs meta factory
// creator class.
template <class TestSuite>
class TestMetaFactory
: public TestMetaFactoryBase<typename TestSuite::ParamType> {
public:
using ParamType = typename TestSuite::ParamType;
TestMetaFactory() {}
TestFactoryBase* CreateTestFactory(ParamType parameter) override {
return new ParameterizedTestFactory<TestSuite>(parameter);
}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestMetaFactory);
};
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// ParameterizedTestSuiteInfoBase is a generic interface
// to ParameterizedTestSuiteInfo classes. ParameterizedTestSuiteInfoBase
// accumulates test information provided by TEST_P macro invocations
// and generators provided by INSTANTIATE_TEST_SUITE_P macro invocations
// and uses that information to register all resulting test instances
// in RegisterTests method. The ParameterizeTestSuiteRegistry class holds
// a collection of pointers to the ParameterizedTestSuiteInfo objects
// and calls RegisterTests() on each of them when asked.
class ParameterizedTestSuiteInfoBase {
public:
virtual ~ParameterizedTestSuiteInfoBase() {}
// Base part of test suite name for display purposes.
virtual const std::string& GetTestSuiteName() const = 0;
// Test suite id to verify identity.
virtual TypeId GetTestSuiteTypeId() const = 0;
// UnitTest class invokes this method to register tests in this
// test suite right before running them in RUN_ALL_TESTS macro.
// This method should not be called more than once on any single
// instance of a ParameterizedTestSuiteInfoBase derived class.
virtual void RegisterTests() = 0;
protected:
ParameterizedTestSuiteInfoBase() {}
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(ParameterizedTestSuiteInfoBase);
};
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Report a the name of a test_suit as safe to ignore
// as the side effect of construction of this type.
struct GTEST_API_ MarkAsIgnored {
explicit MarkAsIgnored(const char* test_suite);
};
GTEST_API_ void InsertSyntheticTestCase(const std::string& name,
CodeLocation location, bool has_test_p);
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// ParameterizedTestSuiteInfo accumulates tests obtained from TEST_P
// macro invocations for a particular test suite and generators
// obtained from INSTANTIATE_TEST_SUITE_P macro invocations for that
// test suite. It registers tests with all values generated by all
// generators when asked.
template <class TestSuite>
class ParameterizedTestSuiteInfo : public ParameterizedTestSuiteInfoBase {
public:
// ParamType and GeneratorCreationFunc are private types but are required
// for declarations of public methods AddTestPattern() and
// AddTestSuiteInstantiation().
using ParamType = typename TestSuite::ParamType;
// A function that returns an instance of appropriate generator type.
typedef ParamGenerator<ParamType>(GeneratorCreationFunc)();
using ParamNameGeneratorFunc = std::string(const TestParamInfo<ParamType>&);
explicit ParameterizedTestSuiteInfo(const char* name,
CodeLocation code_location)
: test_suite_name_(name), code_location_(code_location) {}
// Test suite base name for display purposes.
const std::string& GetTestSuiteName() const override {
return test_suite_name_;
}
// Test suite id to verify identity.
TypeId GetTestSuiteTypeId() const override { return GetTypeId<TestSuite>(); }
// TEST_P macro uses AddTestPattern() to record information
// about a single test in a LocalTestInfo structure.
// test_suite_name is the base name of the test suite (without invocation
// prefix). test_base_name is the name of an individual test without
// parameter index. For the test SequenceA/FooTest.DoBar/1 FooTest is
// test suite base name and DoBar is test base name.
void AddTestPattern(const char* test_suite_name, const char* test_base_name,
TestMetaFactoryBase<ParamType>* meta_factory,
CodeLocation code_location) {
tests_.push_back(std::shared_ptr<TestInfo>(new TestInfo(
test_suite_name, test_base_name, meta_factory, code_location)));
}
// INSTANTIATE_TEST_SUITE_P macro uses AddGenerator() to record information
// about a generator.
int AddTestSuiteInstantiation(const std::string& instantiation_name,
GeneratorCreationFunc* func,
ParamNameGeneratorFunc* name_func,
const char* file, int line) {
instantiations_.push_back(
InstantiationInfo(instantiation_name, func, name_func, file, line));
return 0; // Return value used only to run this method in namespace scope.
}
// UnitTest class invokes this method to register tests in this test suite
// right before running tests in RUN_ALL_TESTS macro.
// This method should not be called more than once on any single
// instance of a ParameterizedTestSuiteInfoBase derived class.
// UnitTest has a guard to prevent from calling this method more than once.
void RegisterTests() override {
bool generated_instantiations = false;
for (typename TestInfoContainer::iterator test_it = tests_.begin();
test_it != tests_.end(); ++test_it) {
std::shared_ptr<TestInfo> test_info = *test_it;
for (typename InstantiationContainer::iterator gen_it =
instantiations_.begin(); gen_it != instantiations_.end();
++gen_it) {
const std::string& instantiation_name = gen_it->name;
ParamGenerator<ParamType> generator((*gen_it->generator)());
ParamNameGeneratorFunc* name_func = gen_it->name_func;
const char* file = gen_it->file;
int line = gen_it->line;
std::string test_suite_name;
if ( !instantiation_name.empty() )
test_suite_name = instantiation_name + "/";
test_suite_name += test_info->test_suite_base_name;
size_t i = 0;
std::set<std::string> test_param_names;
for (typename ParamGenerator<ParamType>::iterator param_it =
generator.begin();
param_it != generator.end(); ++param_it, ++i) {
generated_instantiations = true;
Message test_name_stream;
std::string param_name = name_func(
TestParamInfo<ParamType>(*param_it, i));
GTEST_CHECK_(IsValidParamName(param_name))
<< "Parameterized test name '" << param_name
<< "' is invalid, in " << file
<< " line " << line << std::endl;
GTEST_CHECK_(test_param_names.count(param_name) == 0)
<< "Duplicate parameterized test name '" << param_name
<< "', in " << file << " line " << line << std::endl;
test_param_names.insert(param_name);
if (!test_info->test_base_name.empty()) {
test_name_stream << test_info->test_base_name << "/";
}
test_name_stream << param_name;
MakeAndRegisterTestInfo(
test_suite_name.c_str(), test_name_stream.GetString().c_str(),
nullptr, // No type parameter.
PrintToString(*param_it).c_str(), test_info->code_location,
GetTestSuiteTypeId(),
SuiteApiResolver<TestSuite>::GetSetUpCaseOrSuite(file, line),
SuiteApiResolver<TestSuite>::GetTearDownCaseOrSuite(file, line),
test_info->test_meta_factory->CreateTestFactory(*param_it));
} // for param_it
} // for gen_it
} // for test_it
if (!generated_instantiations) {
// There are no generaotrs, or they all generate nothing ...
InsertSyntheticTestCase(GetTestSuiteName(), code_location_,
!tests_.empty());
}
} // RegisterTests
private:
// LocalTestInfo structure keeps information about a single test registered
// with TEST_P macro.
struct TestInfo {
TestInfo(const char* a_test_suite_base_name, const char* a_test_base_name,
TestMetaFactoryBase<ParamType>* a_test_meta_factory,
CodeLocation a_code_location)
: test_suite_base_name(a_test_suite_base_name),
test_base_name(a_test_base_name),
test_meta_factory(a_test_meta_factory),
code_location(a_code_location) {}
const std::string test_suite_base_name;
const std::string test_base_name;
const std::unique_ptr<TestMetaFactoryBase<ParamType> > test_meta_factory;
const CodeLocation code_location;
};
using TestInfoContainer = ::std::vector<std::shared_ptr<TestInfo> >;
// Records data received from INSTANTIATE_TEST_SUITE_P macros:
// <Instantiation name, Sequence generator creation function,
// Name generator function, Source file, Source line>
struct InstantiationInfo {
InstantiationInfo(const std::string &name_in,
GeneratorCreationFunc* generator_in,
ParamNameGeneratorFunc* name_func_in,
const char* file_in,
int line_in)
: name(name_in),
generator(generator_in),
name_func(name_func_in),
file(file_in),
line(line_in) {}
std::string name;
GeneratorCreationFunc* generator;
ParamNameGeneratorFunc* name_func;
const char* file;
int line;
};
typedef ::std::vector<InstantiationInfo> InstantiationContainer;
static bool IsValidParamName(const std::string& name) {
// Check for empty string
if (name.empty())
return false;
// Check for invalid characters
for (std::string::size_type index = 0; index < name.size(); ++index) {
if (!IsAlNum(name[index]) && name[index] != '_')
return false;
}
return true;
}
const std::string test_suite_name_;
CodeLocation code_location_;
TestInfoContainer tests_;
InstantiationContainer instantiations_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ParameterizedTestSuiteInfo);
}; // class ParameterizedTestSuiteInfo
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
template <class TestCase>
using ParameterizedTestCaseInfo = ParameterizedTestSuiteInfo<TestCase>;
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// ParameterizedTestSuiteRegistry contains a map of
// ParameterizedTestSuiteInfoBase classes accessed by test suite names. TEST_P
// and INSTANTIATE_TEST_SUITE_P macros use it to locate their corresponding
// ParameterizedTestSuiteInfo descriptors.
class ParameterizedTestSuiteRegistry {
public:
ParameterizedTestSuiteRegistry() {}
~ParameterizedTestSuiteRegistry() {
for (auto& test_suite_info : test_suite_infos_) {
delete test_suite_info;
}
}
// Looks up or creates and returns a structure containing information about
// tests and instantiations of a particular test suite.
template <class TestSuite>
ParameterizedTestSuiteInfo<TestSuite>* GetTestSuitePatternHolder(
const char* test_suite_name, CodeLocation code_location) {
ParameterizedTestSuiteInfo<TestSuite>* typed_test_info = nullptr;
for (auto& test_suite_info : test_suite_infos_) {
if (test_suite_info->GetTestSuiteName() == test_suite_name) {
if (test_suite_info->GetTestSuiteTypeId() != GetTypeId<TestSuite>()) {
// Complain about incorrect usage of Google Test facilities
// and terminate the program since we cannot guaranty correct
// test suite setup and tear-down in this case.
ReportInvalidTestSuiteType(test_suite_name, code_location);
posix::Abort();
} else {
// At this point we are sure that the object we found is of the same
// type we are looking for, so we downcast it to that type
// without further checks.
typed_test_info = CheckedDowncastToActualType<
ParameterizedTestSuiteInfo<TestSuite> >(test_suite_info);
}
break;
}
}
if (typed_test_info == nullptr) {
typed_test_info = new ParameterizedTestSuiteInfo<TestSuite>(
test_suite_name, code_location);
test_suite_infos_.push_back(typed_test_info);
}
return typed_test_info;
}
void RegisterTests() {
for (auto& test_suite_info : test_suite_infos_) {
test_suite_info->RegisterTests();
}
}
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
template <class TestCase>
ParameterizedTestCaseInfo<TestCase>* GetTestCasePatternHolder(
const char* test_case_name, CodeLocation code_location) {
return GetTestSuitePatternHolder<TestCase>(test_case_name, code_location);
}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
private:
using TestSuiteInfoContainer = ::std::vector<ParameterizedTestSuiteInfoBase*>;
TestSuiteInfoContainer test_suite_infos_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(ParameterizedTestSuiteRegistry);
};
// Keep track of what type-parameterized test suite are defined and
// where as well as which are intatiated. This allows susequently
// identifying suits that are defined but never used.
class TypeParameterizedTestSuiteRegistry {
public:
// Add a suite definition
void RegisterTestSuite(const char* test_suite_name,
CodeLocation code_location);
// Add an instantiation of a suit.
void RegisterInstantiation(const char* test_suite_name);
// For each suit repored as defined but not reported as instantiation,
// emit a test that reports that fact (configurably, as an error).
void CheckForInstantiations();
private:
struct TypeParameterizedTestSuiteInfo {
explicit TypeParameterizedTestSuiteInfo(CodeLocation c)
: code_location(c), instantiated(false) {}
CodeLocation code_location;
bool instantiated;
};
std::map<std::string, TypeParameterizedTestSuiteInfo> suites_;
};
} // namespace internal
// Forward declarations of ValuesIn(), which is implemented in
// include/gtest/gtest-param-test.h.
template <class Container>
internal::ParamGenerator<typename Container::value_type> ValuesIn(
const Container& container);
namespace internal {
// Used in the Values() function to provide polymorphic capabilities.
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4100)
#endif
template <typename... Ts>
class ValueArray {
public:
explicit ValueArray(Ts... v) : v_(FlatTupleConstructTag{}, std::move(v)...) {}
template <typename T>
operator ParamGenerator<T>() const { // NOLINT
return ValuesIn(MakeVector<T>(MakeIndexSequence<sizeof...(Ts)>()));
}
private:
template <typename T, size_t... I>
std::vector<T> MakeVector(IndexSequence<I...>) const {
return std::vector<T>{static_cast<T>(v_.template Get<I>())...};
}
FlatTuple<Ts...> v_;
};
#ifdef _MSC_VER
#pragma warning(pop)
#endif
template <typename... T>
class CartesianProductGenerator
: public ParamGeneratorInterface<::std::tuple<T...>> {
public:
typedef ::std::tuple<T...> ParamType;
CartesianProductGenerator(const std::tuple<ParamGenerator<T>...>& g)
: generators_(g) {}
~CartesianProductGenerator() override {}
ParamIteratorInterface<ParamType>* Begin() const override {
return new Iterator(this, generators_, false);
}
ParamIteratorInterface<ParamType>* End() const override {
return new Iterator(this, generators_, true);
}
private:
template <class I>
class IteratorImpl;
template <size_t... I>
class IteratorImpl<IndexSequence<I...>>
: public ParamIteratorInterface<ParamType> {
public:
IteratorImpl(const ParamGeneratorInterface<ParamType>* base,
const std::tuple<ParamGenerator<T>...>& generators, bool is_end)
: base_(base),
begin_(std::get<I>(generators).begin()...),
end_(std::get<I>(generators).end()...),
current_(is_end ? end_ : begin_) {
ComputeCurrentValue();
}
~IteratorImpl() override {}
const ParamGeneratorInterface<ParamType>* BaseGenerator() const override {
return base_;
}
// Advance should not be called on beyond-of-range iterators
// so no component iterators must be beyond end of range, either.
void Advance() override {
assert(!AtEnd());
// Advance the last iterator.
++std::get<sizeof...(T) - 1>(current_);
// if that reaches end, propagate that up.
AdvanceIfEnd<sizeof...(T) - 1>();
ComputeCurrentValue();
}
ParamIteratorInterface<ParamType>* Clone() const override {
return new IteratorImpl(*this);
}
const ParamType* Current() const override { return current_value_.get(); }
bool Equals(const ParamIteratorInterface<ParamType>& other) const override {
// Having the same base generator guarantees that the other
// iterator is of the same type and we can downcast.
GTEST_CHECK_(BaseGenerator() == other.BaseGenerator())
<< "The program attempted to compare iterators "
<< "from different generators." << std::endl;
const IteratorImpl* typed_other =
CheckedDowncastToActualType<const IteratorImpl>(&other);
// We must report iterators equal if they both point beyond their
// respective ranges. That can happen in a variety of fashions,
// so we have to consult AtEnd().
if (AtEnd() && typed_other->AtEnd()) return true;
bool same = true;
bool dummy[] = {
(same = same && std::get<I>(current_) ==
std::get<I>(typed_other->current_))...};
(void)dummy;
return same;
}
private:
template <size_t ThisI>
void AdvanceIfEnd() {
if (std::get<ThisI>(current_) != std::get<ThisI>(end_)) return;
bool last = ThisI == 0;
if (last) {
// We are done. Nothing else to propagate.
return;
}
constexpr size_t NextI = ThisI - (ThisI != 0);
std::get<ThisI>(current_) = std::get<ThisI>(begin_);
++std::get<NextI>(current_);
AdvanceIfEnd<NextI>();
}
void ComputeCurrentValue() {
if (!AtEnd())
current_value_ = std::make_shared<ParamType>(*std::get<I>(current_)...);
}
bool AtEnd() const {
bool at_end = false;
bool dummy[] = {
(at_end = at_end || std::get<I>(current_) == std::get<I>(end_))...};
(void)dummy;
return at_end;
}
const ParamGeneratorInterface<ParamType>* const base_;
std::tuple<typename ParamGenerator<T>::iterator...> begin_;
std::tuple<typename ParamGenerator<T>::iterator...> end_;
std::tuple<typename ParamGenerator<T>::iterator...> current_;
std::shared_ptr<ParamType> current_value_;
};
using Iterator = IteratorImpl<typename MakeIndexSequence<sizeof...(T)>::type>;
std::tuple<ParamGenerator<T>...> generators_;
};
template <class... Gen>
class CartesianProductHolder {
public:
CartesianProductHolder(const Gen&... g) : generators_(g...) {}
template <typename... T>
operator ParamGenerator<::std::tuple<T...>>() const {
return ParamGenerator<::std::tuple<T...>>(
new CartesianProductGenerator<T...>(generators_));
}
private:
std::tuple<Gen...> generators_;
};
} // namespace internal
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
namespace testing {
// Functions producing parameter generators.
//
// Google Test uses these generators to produce parameters for value-
// parameterized tests. When a parameterized test suite is instantiated
// with a particular generator, Google Test creates and runs tests
// for each element in the sequence produced by the generator.
//
// In the following sample, tests from test suite FooTest are instantiated
// each three times with parameter values 3, 5, and 8:
//
// class FooTest : public TestWithParam<int> { ... };
//
// TEST_P(FooTest, TestThis) {
// }
// TEST_P(FooTest, TestThat) {
// }
// INSTANTIATE_TEST_SUITE_P(TestSequence, FooTest, Values(3, 5, 8));
//
// Range() returns generators providing sequences of values in a range.
//
// Synopsis:
// Range(start, end)
// - returns a generator producing a sequence of values {start, start+1,
// start+2, ..., }.
// Range(start, end, step)
// - returns a generator producing a sequence of values {start, start+step,
// start+step+step, ..., }.
// Notes:
// * The generated sequences never include end. For example, Range(1, 5)
// returns a generator producing a sequence {1, 2, 3, 4}. Range(1, 9, 2)
// returns a generator producing {1, 3, 5, 7}.
// * start and end must have the same type. That type may be any integral or
// floating-point type or a user defined type satisfying these conditions:
// * It must be assignable (have operator=() defined).
// * It must have operator+() (operator+(int-compatible type) for
// two-operand version).
// * It must have operator<() defined.
// Elements in the resulting sequences will also have that type.
// * Condition start < end must be satisfied in order for resulting sequences
// to contain any elements.
//
template <typename T, typename IncrementT>
internal::ParamGenerator<T> Range(T start, T end, IncrementT step) {
return internal::ParamGenerator<T>(
new internal::RangeGenerator<T, IncrementT>(start, end, step));
}
template <typename T>
internal::ParamGenerator<T> Range(T start, T end) {
return Range(start, end, 1);
}
// ValuesIn() function allows generation of tests with parameters coming from
// a container.
//
// Synopsis:
// ValuesIn(const T (&array)[N])
// - returns a generator producing sequences with elements from
// a C-style array.
// ValuesIn(const Container& container)
// - returns a generator producing sequences with elements from
// an STL-style container.
// ValuesIn(Iterator begin, Iterator end)
// - returns a generator producing sequences with elements from
// a range [begin, end) defined by a pair of STL-style iterators. These
// iterators can also be plain C pointers.
//
// Please note that ValuesIn copies the values from the containers
// passed in and keeps them to generate tests in RUN_ALL_TESTS().
//
// Examples:
//
// This instantiates tests from test suite StringTest
// each with C-string values of "foo", "bar", and "baz":
//
// const char* strings[] = {"foo", "bar", "baz"};
// INSTANTIATE_TEST_SUITE_P(StringSequence, StringTest, ValuesIn(strings));
//
// This instantiates tests from test suite StlStringTest
// each with STL strings with values "a" and "b":
//
// ::std::vector< ::std::string> GetParameterStrings() {
// ::std::vector< ::std::string> v;
// v.push_back("a");
// v.push_back("b");
// return v;
// }
//
// INSTANTIATE_TEST_SUITE_P(CharSequence,
// StlStringTest,
// ValuesIn(GetParameterStrings()));
//
//
// This will also instantiate tests from CharTest
// each with parameter values 'a' and 'b':
//
// ::std::list<char> GetParameterChars() {
// ::std::list<char> list;
// list.push_back('a');
// list.push_back('b');
// return list;
// }
// ::std::list<char> l = GetParameterChars();
// INSTANTIATE_TEST_SUITE_P(CharSequence2,
// CharTest,
// ValuesIn(l.begin(), l.end()));
//
template <typename ForwardIterator>
internal::ParamGenerator<
typename std::iterator_traits<ForwardIterator>::value_type>
ValuesIn(ForwardIterator begin, ForwardIterator end) {
typedef typename std::iterator_traits<ForwardIterator>::value_type ParamType;
return internal::ParamGenerator<ParamType>(
new internal::ValuesInIteratorRangeGenerator<ParamType>(begin, end));
}
template <typename T, size_t N>
internal::ParamGenerator<T> ValuesIn(const T (&array)[N]) {
return ValuesIn(array, array + N);
}
template <class Container>
internal::ParamGenerator<typename Container::value_type> ValuesIn(
const Container& container) {
return ValuesIn(container.begin(), container.end());
}
// Values() allows generating tests from explicitly specified list of
// parameters.
//
// Synopsis:
// Values(T v1, T v2, ..., T vN)
// - returns a generator producing sequences with elements v1, v2, ..., vN.
//
// For example, this instantiates tests from test suite BarTest each
// with values "one", "two", and "three":
//
// INSTANTIATE_TEST_SUITE_P(NumSequence,
// BarTest,
// Values("one", "two", "three"));
//
// This instantiates tests from test suite BazTest each with values 1, 2, 3.5.
// The exact type of values will depend on the type of parameter in BazTest.
//
// INSTANTIATE_TEST_SUITE_P(FloatingNumbers, BazTest, Values(1, 2, 3.5));
//
//
template <typename... T>
internal::ValueArray<T...> Values(T... v) {
return internal::ValueArray<T...>(std::move(v)...);
}
// Bool() allows generating tests with parameters in a set of (false, true).
//
// Synopsis:
// Bool()
// - returns a generator producing sequences with elements {false, true}.
//
// It is useful when testing code that depends on Boolean flags. Combinations
// of multiple flags can be tested when several Bool()'s are combined using
// Combine() function.
//
// In the following example all tests in the test suite FlagDependentTest
// will be instantiated twice with parameters false and true.
//
// class FlagDependentTest : public testing::TestWithParam<bool> {
// virtual void SetUp() {
// external_flag = GetParam();
// }
// }
// INSTANTIATE_TEST_SUITE_P(BoolSequence, FlagDependentTest, Bool());
//
inline internal::ParamGenerator<bool> Bool() {
return Values(false, true);
}
// Combine() allows the user to combine two or more sequences to produce
// values of a Cartesian product of those sequences' elements.
//
// Synopsis:
// Combine(gen1, gen2, ..., genN)
// - returns a generator producing sequences with elements coming from
// the Cartesian product of elements from the sequences generated by
// gen1, gen2, ..., genN. The sequence elements will have a type of
// std::tuple<T1, T2, ..., TN> where T1, T2, ..., TN are the types
// of elements from sequences produces by gen1, gen2, ..., genN.
//
// Example:
//
// This will instantiate tests in test suite AnimalTest each one with
// the parameter values tuple("cat", BLACK), tuple("cat", WHITE),
// tuple("dog", BLACK), and tuple("dog", WHITE):
//
// enum Color { BLACK, GRAY, WHITE };
// class AnimalTest
// : public testing::TestWithParam<std::tuple<const char*, Color> > {...};
//
// TEST_P(AnimalTest, AnimalLooksNice) {...}
//
// INSTANTIATE_TEST_SUITE_P(AnimalVariations, AnimalTest,
// Combine(Values("cat", "dog"),
// Values(BLACK, WHITE)));
//
// This will instantiate tests in FlagDependentTest with all variations of two
// Boolean flags:
//
// class FlagDependentTest
// : public testing::TestWithParam<std::tuple<bool, bool> > {
// virtual void SetUp() {
// // Assigns external_flag_1 and external_flag_2 values from the tuple.
// std::tie(external_flag_1, external_flag_2) = GetParam();
// }
// };
//
// TEST_P(FlagDependentTest, TestFeature1) {
// // Test your code using external_flag_1 and external_flag_2 here.
// }
// INSTANTIATE_TEST_SUITE_P(TwoBoolSequence, FlagDependentTest,
// Combine(Bool(), Bool()));
//
template <typename... Generator>
internal::CartesianProductHolder<Generator...> Combine(const Generator&... g) {
return internal::CartesianProductHolder<Generator...>(g...);
}
#define TEST_P(test_suite_name, test_name) \
class GTEST_TEST_CLASS_NAME_(test_suite_name, test_name) \
: public test_suite_name { \
public: \
GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)() {} \
void TestBody() override; \
\
private: \
static int AddToRegistry() { \
::testing::UnitTest::GetInstance() \
->parameterized_test_registry() \
.GetTestSuitePatternHolder<test_suite_name>( \
GTEST_STRINGIFY_(test_suite_name), \
::testing::internal::CodeLocation(__FILE__, __LINE__)) \
->AddTestPattern( \
GTEST_STRINGIFY_(test_suite_name), GTEST_STRINGIFY_(test_name), \
new ::testing::internal::TestMetaFactory<GTEST_TEST_CLASS_NAME_( \
test_suite_name, test_name)>(), \
::testing::internal::CodeLocation(__FILE__, __LINE__)); \
return 0; \
} \
static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
GTEST_DISALLOW_COPY_AND_ASSIGN_(GTEST_TEST_CLASS_NAME_(test_suite_name, \
test_name)); \
}; \
int GTEST_TEST_CLASS_NAME_(test_suite_name, \
test_name)::gtest_registering_dummy_ = \
GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)::AddToRegistry(); \
void GTEST_TEST_CLASS_NAME_(test_suite_name, test_name)::TestBody()
// The last argument to INSTANTIATE_TEST_SUITE_P allows the user to specify
// generator and an optional function or functor that generates custom test name
// suffixes based on the test parameters. Such a function or functor should
// accept one argument of type testing::TestParamInfo<class ParamType>, and
// return std::string.
//
// testing::PrintToStringParamName is a builtin test suffix generator that
// returns the value of testing::PrintToString(GetParam()).
//
// Note: test names must be non-empty, unique, and may only contain ASCII
// alphanumeric characters or underscore. Because PrintToString adds quotes
// to std::string and C strings, it won't work for these types.
#define GTEST_EXPAND_(arg) arg
#define GTEST_GET_FIRST_(first, ...) first
#define GTEST_GET_SECOND_(first, second, ...) second
#define INSTANTIATE_TEST_SUITE_P(prefix, test_suite_name, ...) \
static ::testing::internal::ParamGenerator<test_suite_name::ParamType> \
gtest_##prefix##test_suite_name##_EvalGenerator_() { \
return GTEST_EXPAND_(GTEST_GET_FIRST_(__VA_ARGS__, DUMMY_PARAM_)); \
} \
static ::std::string gtest_##prefix##test_suite_name##_EvalGenerateName_( \
const ::testing::TestParamInfo<test_suite_name::ParamType>& info) { \
if (::testing::internal::AlwaysFalse()) { \
::testing::internal::TestNotEmpty(GTEST_EXPAND_(GTEST_GET_SECOND_( \
__VA_ARGS__, \
::testing::internal::DefaultParamName<test_suite_name::ParamType>, \
DUMMY_PARAM_))); \
auto t = std::make_tuple(__VA_ARGS__); \
static_assert(std::tuple_size<decltype(t)>::value <= 2, \
"Too Many Args!"); \
} \
return ((GTEST_EXPAND_(GTEST_GET_SECOND_( \
__VA_ARGS__, \
::testing::internal::DefaultParamName<test_suite_name::ParamType>, \
DUMMY_PARAM_))))(info); \
} \
static int gtest_##prefix##test_suite_name##_dummy_ \
GTEST_ATTRIBUTE_UNUSED_ = \
::testing::UnitTest::GetInstance() \
->parameterized_test_registry() \
.GetTestSuitePatternHolder<test_suite_name>( \
GTEST_STRINGIFY_(test_suite_name), \
::testing::internal::CodeLocation(__FILE__, __LINE__)) \
->AddTestSuiteInstantiation( \
GTEST_STRINGIFY_(prefix), \
&gtest_##prefix##test_suite_name##_EvalGenerator_, \
&gtest_##prefix##test_suite_name##_EvalGenerateName_, \
__FILE__, __LINE__)
// Allow Marking a Parameterized test class as not needing to be instantiated.
#define GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(T) \
namespace gtest_do_not_use_outside_namespace_scope {} \
static const ::testing::internal::MarkAsIgnored gtest_allow_ignore_##T( \
GTEST_STRINGIFY_(T))
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define INSTANTIATE_TEST_CASE_P \
static_assert(::testing::internal::InstantiateTestCase_P_IsDeprecated(), \
""); \
INSTANTIATE_TEST_SUITE_P
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
// Copyright 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Google C++ Testing and Mocking Framework definitions useful in production code.
// GOOGLETEST_CM0003 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PROD_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_PROD_H_
// When you need to test the private or protected members of a class,
// use the FRIEND_TEST macro to declare your tests as friends of the
// class. For example:
//
// class MyClass {
// private:
// void PrivateMethod();
// FRIEND_TEST(MyClassTest, PrivateMethodWorks);
// };
//
// class MyClassTest : public testing::Test {
// // ...
// };
//
// TEST_F(MyClassTest, PrivateMethodWorks) {
// // Can call MyClass::PrivateMethod() here.
// }
//
// Note: The test class must be in the same namespace as the class being tested.
// For example, putting MyClassTest in an anonymous namespace will not work.
#define FRIEND_TEST(test_case_name, test_name)\
friend class test_case_name##_##test_name##_Test
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_PROD_H_
// Copyright 2008 Google Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
// This header implements typed tests and type-parameterized tests.
// Typed (aka type-driven) tests repeat the same test for types in a
// list. You must know which types you want to test with when writing
// typed tests. Here's how you do it:
#if 0
// First, define a fixture class template. It should be parameterized
// by a type. Remember to derive it from testing::Test.
template <typename T>
class FooTest : public testing::Test {
public:
...
typedef std::list<T> List;
static T shared_;
T value_;
};
// Next, associate a list of types with the test suite, which will be
// repeated for each type in the list. The typedef is necessary for
// the macro to parse correctly.
typedef testing::Types<char, int, unsigned int> MyTypes;
TYPED_TEST_SUITE(FooTest, MyTypes);
// If the type list contains only one type, you can write that type
// directly without Types<...>:
// TYPED_TEST_SUITE(FooTest, int);
// Then, use TYPED_TEST() instead of TEST_F() to define as many typed
// tests for this test suite as you want.
TYPED_TEST(FooTest, DoesBlah) {
// Inside a test, refer to the special name TypeParam to get the type
// parameter. Since we are inside a derived class template, C++ requires
// us to visit the members of FooTest via 'this'.
TypeParam n = this->value_;
// To visit static members of the fixture, add the TestFixture::
// prefix.
n += TestFixture::shared_;
// To refer to typedefs in the fixture, add the "typename
// TestFixture::" prefix.
typename TestFixture::List values;
values.push_back(n);
...
}
TYPED_TEST(FooTest, HasPropertyA) { ... }
// TYPED_TEST_SUITE takes an optional third argument which allows to specify a
// class that generates custom test name suffixes based on the type. This should
// be a class which has a static template function GetName(int index) returning
// a string for each type. The provided integer index equals the index of the
// type in the provided type list. In many cases the index can be ignored.
//
// For example:
// class MyTypeNames {
// public:
// template <typename T>
// static std::string GetName(int) {
// if (std::is_same<T, char>()) return "char";
// if (std::is_same<T, int>()) return "int";
// if (std::is_same<T, unsigned int>()) return "unsignedInt";
// }
// };
// TYPED_TEST_SUITE(FooTest, MyTypes, MyTypeNames);
#endif // 0
// Type-parameterized tests are abstract test patterns parameterized
// by a type. Compared with typed tests, type-parameterized tests
// allow you to define the test pattern without knowing what the type
// parameters are. The defined pattern can be instantiated with
// different types any number of times, in any number of translation
// units.
//
// If you are designing an interface or concept, you can define a
// suite of type-parameterized tests to verify properties that any
// valid implementation of the interface/concept should have. Then,
// each implementation can easily instantiate the test suite to verify
// that it conforms to the requirements, without having to write
// similar tests repeatedly. Here's an example:
#if 0
// First, define a fixture class template. It should be parameterized
// by a type. Remember to derive it from testing::Test.
template <typename T>
class FooTest : public testing::Test {
...
};
// Next, declare that you will define a type-parameterized test suite
// (the _P suffix is for "parameterized" or "pattern", whichever you
// prefer):
TYPED_TEST_SUITE_P(FooTest);
// Then, use TYPED_TEST_P() to define as many type-parameterized tests
// for this type-parameterized test suite as you want.
TYPED_TEST_P(FooTest, DoesBlah) {
// Inside a test, refer to TypeParam to get the type parameter.
TypeParam n = 0;
...
}
TYPED_TEST_P(FooTest, HasPropertyA) { ... }
// Now the tricky part: you need to register all test patterns before
// you can instantiate them. The first argument of the macro is the
// test suite name; the rest are the names of the tests in this test
// case.
REGISTER_TYPED_TEST_SUITE_P(FooTest,
DoesBlah, HasPropertyA);
// Finally, you are free to instantiate the pattern with the types you
// want. If you put the above code in a header file, you can #include
// it in multiple C++ source files and instantiate it multiple times.
//
// To distinguish different instances of the pattern, the first
// argument to the INSTANTIATE_* macro is a prefix that will be added
// to the actual test suite name. Remember to pick unique prefixes for
// different instances.
typedef testing::Types<char, int, unsigned int> MyTypes;
INSTANTIATE_TYPED_TEST_SUITE_P(My, FooTest, MyTypes);
// If the type list contains only one type, you can write that type
// directly without Types<...>:
// INSTANTIATE_TYPED_TEST_SUITE_P(My, FooTest, int);
//
// Similar to the optional argument of TYPED_TEST_SUITE above,
// INSTANTIATE_TEST_SUITE_P takes an optional fourth argument which allows to
// generate custom names.
// INSTANTIATE_TYPED_TEST_SUITE_P(My, FooTest, MyTypes, MyTypeNames);
#endif // 0
// Implements typed tests.
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the name of the typedef for the type parameters of the
// given test suite.
#define GTEST_TYPE_PARAMS_(TestSuiteName) gtest_type_params_##TestSuiteName##_
// Expands to the name of the typedef for the NameGenerator, responsible for
// creating the suffixes of the name.
#define GTEST_NAME_GENERATOR_(TestSuiteName) \
gtest_type_params_##TestSuiteName##_NameGenerator
#define TYPED_TEST_SUITE(CaseName, Types, ...) \
typedef ::testing::internal::GenerateTypeList<Types>::type \
GTEST_TYPE_PARAMS_(CaseName); \
typedef ::testing::internal::NameGeneratorSelector<__VA_ARGS__>::type \
GTEST_NAME_GENERATOR_(CaseName)
#define TYPED_TEST(CaseName, TestName) \
static_assert(sizeof(GTEST_STRINGIFY_(TestName)) > 1, \
"test-name must not be empty"); \
template <typename gtest_TypeParam_> \
class GTEST_TEST_CLASS_NAME_(CaseName, TestName) \
: public CaseName<gtest_TypeParam_> { \
private: \
typedef CaseName<gtest_TypeParam_> TestFixture; \
typedef gtest_TypeParam_ TypeParam; \
void TestBody() override; \
}; \
static bool gtest_##CaseName##_##TestName##_registered_ \
GTEST_ATTRIBUTE_UNUSED_ = ::testing::internal::TypeParameterizedTest< \
CaseName, \
::testing::internal::TemplateSel<GTEST_TEST_CLASS_NAME_(CaseName, \
TestName)>, \
GTEST_TYPE_PARAMS_( \
CaseName)>::Register("", \
::testing::internal::CodeLocation( \
__FILE__, __LINE__), \
GTEST_STRINGIFY_(CaseName), \
GTEST_STRINGIFY_(TestName), 0, \
::testing::internal::GenerateNames< \
GTEST_NAME_GENERATOR_(CaseName), \
GTEST_TYPE_PARAMS_(CaseName)>()); \
template <typename gtest_TypeParam_> \
void GTEST_TEST_CLASS_NAME_(CaseName, \
TestName)<gtest_TypeParam_>::TestBody()
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define TYPED_TEST_CASE \
static_assert(::testing::internal::TypedTestCaseIsDeprecated(), ""); \
TYPED_TEST_SUITE
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Implements type-parameterized tests.
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the namespace name that the type-parameterized tests for
// the given type-parameterized test suite are defined in. The exact
// name of the namespace is subject to change without notice.
#define GTEST_SUITE_NAMESPACE_(TestSuiteName) gtest_suite_##TestSuiteName##_
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the name of the variable used to remember the names of
// the defined tests in the given test suite.
#define GTEST_TYPED_TEST_SUITE_P_STATE_(TestSuiteName) \
gtest_typed_test_suite_p_state_##TestSuiteName##_
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE DIRECTLY.
//
// Expands to the name of the variable used to remember the names of
// the registered tests in the given test suite.
#define GTEST_REGISTERED_TEST_NAMES_(TestSuiteName) \
gtest_registered_test_names_##TestSuiteName##_
// The variables defined in the type-parameterized test macros are
// static as typically these macros are used in a .h file that can be
// #included in multiple translation units linked together.
#define TYPED_TEST_SUITE_P(SuiteName) \
static ::testing::internal::TypedTestSuitePState \
GTEST_TYPED_TEST_SUITE_P_STATE_(SuiteName)
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define TYPED_TEST_CASE_P \
static_assert(::testing::internal::TypedTestCase_P_IsDeprecated(), ""); \
TYPED_TEST_SUITE_P
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define TYPED_TEST_P(SuiteName, TestName) \
namespace GTEST_SUITE_NAMESPACE_(SuiteName) { \
template <typename gtest_TypeParam_> \
class TestName : public SuiteName<gtest_TypeParam_> { \
private: \
typedef SuiteName<gtest_TypeParam_> TestFixture; \
typedef gtest_TypeParam_ TypeParam; \
void TestBody() override; \
}; \
static bool gtest_##TestName##_defined_ GTEST_ATTRIBUTE_UNUSED_ = \
GTEST_TYPED_TEST_SUITE_P_STATE_(SuiteName).AddTestName( \
__FILE__, __LINE__, GTEST_STRINGIFY_(SuiteName), \
GTEST_STRINGIFY_(TestName)); \
} \
template <typename gtest_TypeParam_> \
void GTEST_SUITE_NAMESPACE_( \
SuiteName)::TestName<gtest_TypeParam_>::TestBody()
// Note: this won't work correctly if the trailing arguments are macros.
#define REGISTER_TYPED_TEST_SUITE_P(SuiteName, ...) \
namespace GTEST_SUITE_NAMESPACE_(SuiteName) { \
typedef ::testing::internal::Templates<__VA_ARGS__> gtest_AllTests_; \
} \
static const char* const GTEST_REGISTERED_TEST_NAMES_( \
SuiteName) GTEST_ATTRIBUTE_UNUSED_ = \
GTEST_TYPED_TEST_SUITE_P_STATE_(SuiteName).VerifyRegisteredTestNames( \
GTEST_STRINGIFY_(SuiteName), __FILE__, __LINE__, #__VA_ARGS__)
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define REGISTER_TYPED_TEST_CASE_P \
static_assert(::testing::internal::RegisterTypedTestCase_P_IsDeprecated(), \
""); \
REGISTER_TYPED_TEST_SUITE_P
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define INSTANTIATE_TYPED_TEST_SUITE_P(Prefix, SuiteName, Types, ...) \
static_assert(sizeof(GTEST_STRINGIFY_(Prefix)) > 1, \
"test-suit-prefix must not be empty"); \
static bool gtest_##Prefix##_##SuiteName GTEST_ATTRIBUTE_UNUSED_ = \
::testing::internal::TypeParameterizedTestSuite< \
SuiteName, GTEST_SUITE_NAMESPACE_(SuiteName)::gtest_AllTests_, \
::testing::internal::GenerateTypeList<Types>::type>:: \
Register(GTEST_STRINGIFY_(Prefix), \
::testing::internal::CodeLocation(__FILE__, __LINE__), \
&GTEST_TYPED_TEST_SUITE_P_STATE_(SuiteName), \
GTEST_STRINGIFY_(SuiteName), \
GTEST_REGISTERED_TEST_NAMES_(SuiteName), \
::testing::internal::GenerateNames< \
::testing::internal::NameGeneratorSelector< \
__VA_ARGS__>::type, \
::testing::internal::GenerateTypeList<Types>::type>())
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#define INSTANTIATE_TYPED_TEST_CASE_P \
static_assert( \
::testing::internal::InstantiateTypedTestCase_P_IsDeprecated(), ""); \
INSTANTIATE_TYPED_TEST_SUITE_P
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
namespace testing {
// Silence C4100 (unreferenced formal parameter) and 4805
// unsafe mix of type 'const int' and type 'const bool'
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4805)
# pragma warning(disable:4100)
#endif
// Declares the flags.
// This flag temporary enables the disabled tests.
GTEST_DECLARE_bool_(also_run_disabled_tests);
// This flag brings the debugger on an assertion failure.
GTEST_DECLARE_bool_(break_on_failure);
// This flag controls whether Google Test catches all test-thrown exceptions
// and logs them as failures.
GTEST_DECLARE_bool_(catch_exceptions);
// This flag enables using colors in terminal output. Available values are
// "yes" to enable colors, "no" (disable colors), or "auto" (the default)
// to let Google Test decide.
GTEST_DECLARE_string_(color);
// This flag controls whether the test runner should continue execution past
// first failure.
GTEST_DECLARE_bool_(fail_fast);
// This flag sets up the filter to select by name using a glob pattern
// the tests to run. If the filter is not given all tests are executed.
GTEST_DECLARE_string_(filter);
// This flag controls whether Google Test installs a signal handler that dumps
// debugging information when fatal signals are raised.
GTEST_DECLARE_bool_(install_failure_signal_handler);
// This flag causes the Google Test to list tests. None of the tests listed
// are actually run if the flag is provided.
GTEST_DECLARE_bool_(list_tests);
// This flag controls whether Google Test emits a detailed XML report to a file
// in addition to its normal textual output.
GTEST_DECLARE_string_(output);
// This flags control whether Google Test prints only test failures.
GTEST_DECLARE_bool_(brief);
// This flags control whether Google Test prints the elapsed time for each
// test.
GTEST_DECLARE_bool_(print_time);
// This flags control whether Google Test prints UTF8 characters as text.
GTEST_DECLARE_bool_(print_utf8);
// This flag specifies the random number seed.
GTEST_DECLARE_int32_(random_seed);
// This flag sets how many times the tests are repeated. The default value
// is 1. If the value is -1 the tests are repeating forever.
GTEST_DECLARE_int32_(repeat);
// This flag controls whether Google Test includes Google Test internal
// stack frames in failure stack traces.
GTEST_DECLARE_bool_(show_internal_stack_frames);
// When this flag is specified, tests' order is randomized on every iteration.
GTEST_DECLARE_bool_(shuffle);
// This flag specifies the maximum number of stack frames to be
// printed in a failure message.
GTEST_DECLARE_int32_(stack_trace_depth);
// When this flag is specified, a failed assertion will throw an
// exception if exceptions are enabled, or exit the program with a
// non-zero code otherwise. For use with an external test framework.
GTEST_DECLARE_bool_(throw_on_failure);
// When this flag is set with a "host:port" string, on supported
// platforms test results are streamed to the specified port on
// the specified host machine.
GTEST_DECLARE_string_(stream_result_to);
#if GTEST_USE_OWN_FLAGFILE_FLAG_
GTEST_DECLARE_string_(flagfile);
#endif // GTEST_USE_OWN_FLAGFILE_FLAG_
// The upper limit for valid stack trace depths.
const int kMaxStackTraceDepth = 100;
namespace internal {
class AssertHelper;
class DefaultGlobalTestPartResultReporter;
class ExecDeathTest;
class NoExecDeathTest;
class FinalSuccessChecker;
class GTestFlagSaver;
class StreamingListenerTest;
class TestResultAccessor;
class TestEventListenersAccessor;
class TestEventRepeater;
class UnitTestRecordPropertyTestHelper;
class WindowsDeathTest;
class FuchsiaDeathTest;
class UnitTestImpl* GetUnitTestImpl();
void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
const std::string& message);
std::set<std::string>* GetIgnoredParameterizedTestSuites();
} // namespace internal
// The friend relationship of some of these classes is cyclic.
// If we don't forward declare them the compiler might confuse the classes
// in friendship clauses with same named classes on the scope.
class Test;
class TestSuite;
// Old API is still available but deprecated
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
using TestCase = TestSuite;
#endif
class TestInfo;
class UnitTest;
// A class for indicating whether an assertion was successful. When
// the assertion wasn't successful, the AssertionResult object
// remembers a non-empty message that describes how it failed.
//
// To create an instance of this class, use one of the factory functions
// (AssertionSuccess() and AssertionFailure()).
//
// This class is useful for two purposes:
// 1. Defining predicate functions to be used with Boolean test assertions
// EXPECT_TRUE/EXPECT_FALSE and their ASSERT_ counterparts
// 2. Defining predicate-format functions to be
// used with predicate assertions (ASSERT_PRED_FORMAT*, etc).
//
// For example, if you define IsEven predicate:
//
// testing::AssertionResult IsEven(int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess();
// else
// return testing::AssertionFailure() << n << " is odd";
// }
//
// Then the failed expectation EXPECT_TRUE(IsEven(Fib(5)))
// will print the message
//
// Value of: IsEven(Fib(5))
// Actual: false (5 is odd)
// Expected: true
//
// instead of a more opaque
//
// Value of: IsEven(Fib(5))
// Actual: false
// Expected: true
//
// in case IsEven is a simple Boolean predicate.
//
// If you expect your predicate to be reused and want to support informative
// messages in EXPECT_FALSE and ASSERT_FALSE (negative assertions show up
// about half as often as positive ones in our tests), supply messages for
// both success and failure cases:
//
// testing::AssertionResult IsEven(int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess() << n << " is even";
// else
// return testing::AssertionFailure() << n << " is odd";
// }
//
// Then a statement EXPECT_FALSE(IsEven(Fib(6))) will print
//
// Value of: IsEven(Fib(6))
// Actual: true (8 is even)
// Expected: false
//
// NB: Predicates that support negative Boolean assertions have reduced
// performance in positive ones so be careful not to use them in tests
// that have lots (tens of thousands) of positive Boolean assertions.
//
// To use this class with EXPECT_PRED_FORMAT assertions such as:
//
// // Verifies that Foo() returns an even number.
// EXPECT_PRED_FORMAT1(IsEven, Foo());
//
// you need to define:
//
// testing::AssertionResult IsEven(const char* expr, int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess();
// else
// return testing::AssertionFailure()
// << "Expected: " << expr << " is even\n Actual: it's " << n;
// }
//
// If Foo() returns 5, you will see the following message:
//
// Expected: Foo() is even
// Actual: it's 5
//
class GTEST_API_ AssertionResult {
public:
// Copy constructor.
// Used in EXPECT_TRUE/FALSE(assertion_result).
AssertionResult(const AssertionResult& other);
// C4800 is a level 3 warning in Visual Studio 2015 and earlier.
// This warning is not emitted in Visual Studio 2017.
// This warning is off by default starting in Visual Studio 2019 but can be
// enabled with command-line options.
#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 /* forcing value to bool */)
#endif
// Used in the EXPECT_TRUE/FALSE(bool_expression).
//
// T must be contextually convertible to bool.
//
// The second parameter prevents this overload from being considered if
// the argument is implicitly convertible to AssertionResult. In that case
// we want AssertionResult's copy constructor to be used.
template <typename T>
explicit AssertionResult(
const T& success,
typename std::enable_if<
!std::is_convertible<T, AssertionResult>::value>::type*
/*enabler*/
= nullptr)
: success_(success) {}
#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
GTEST_DISABLE_MSC_WARNINGS_POP_()
#endif
// Assignment operator.
AssertionResult& operator=(AssertionResult other) {
swap(other);
return *this;
}
// Returns true if and only if the assertion succeeded.
operator bool() const { return success_; } // NOLINT
// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
AssertionResult operator!() const;
// Returns the text streamed into this AssertionResult. Test assertions
// use it when they fail (i.e., the predicate's outcome doesn't match the
// assertion's expectation). When nothing has been streamed into the
// object, returns an empty string.
const char* message() const {
return message_.get() != nullptr ? message_->c_str() : "";
}
// Deprecated; please use message() instead.
const char* failure_message() const { return message(); }
// Streams a custom failure message into this object.
template <typename T> AssertionResult& operator<<(const T& value) {
AppendMessage(Message() << value);
return *this;
}
// Allows streaming basic output manipulators such as endl or flush into
// this object.
AssertionResult& operator<<(
::std::ostream& (*basic_manipulator)(::std::ostream& stream)) {
AppendMessage(Message() << basic_manipulator);
return *this;
}
private:
// Appends the contents of message to message_.
void AppendMessage(const Message& a_message) {
if (message_.get() == nullptr) message_.reset(new ::std::string);
message_->append(a_message.GetString().c_str());
}
// Swap the contents of this AssertionResult with other.
void swap(AssertionResult& other);
// Stores result of the assertion predicate.
bool success_;
// Stores the message describing the condition in case the expectation
// construct is not satisfied with the predicate's outcome.
// Referenced via a pointer to avoid taking too much stack frame space
// with test assertions.
std::unique_ptr< ::std::string> message_;
};
// Makes a successful assertion result.
GTEST_API_ AssertionResult AssertionSuccess();
// Makes a failed assertion result.
GTEST_API_ AssertionResult AssertionFailure();
// Makes a failed assertion result with the given failure message.
// Deprecated; use AssertionFailure() << msg.
GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
} // namespace testing
// Includes the auto-generated header that implements a family of generic
// predicate assertion macros. This include comes late because it relies on
// APIs declared above.
// Copyright 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This file is AUTOMATICALLY GENERATED on 01/02/2019 by command
// 'gen_gtest_pred_impl.py 5'. DO NOT EDIT BY HAND!
//
// Implements a family of generic predicate assertion macros.
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
namespace testing {
// This header implements a family of generic predicate assertion
// macros:
//
// ASSERT_PRED_FORMAT1(pred_format, v1)
// ASSERT_PRED_FORMAT2(pred_format, v1, v2)
// ...
//
// where pred_format is a function or functor that takes n (in the
// case of ASSERT_PRED_FORMATn) values and their source expression
// text, and returns a testing::AssertionResult. See the definition
// of ASSERT_EQ in gtest.h for an example.
//
// If you don't care about formatting, you can use the more
// restrictive version:
//
// ASSERT_PRED1(pred, v1)
// ASSERT_PRED2(pred, v1, v2)
// ...
//
// where pred is an n-ary function or functor that returns bool,
// and the values v1, v2, ..., must support the << operator for
// streaming to std::ostream.
//
// We also define the EXPECT_* variations.
//
// For now we only support predicates whose arity is at most 5.
// Please email googletestframework@googlegroups.com if you need
// support for higher arities.
// GTEST_ASSERT_ is the basic statement to which all of the assertions
// in this file reduce. Don't use this in your code.
#define GTEST_ASSERT_(expression, on_failure) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
if (const ::testing::AssertionResult gtest_ar = (expression)) \
; \
else \
on_failure(gtest_ar.failure_message())
// Helper function for implementing {EXPECT|ASSERT}_PRED1. Don't use
// this in your code.
template <typename Pred,
typename T1>
AssertionResult AssertPred1Helper(const char* pred_text,
const char* e1,
Pred pred,
const T1& v1) {
if (pred(v1)) return AssertionSuccess();
return AssertionFailure()
<< pred_text << "(" << e1 << ") evaluates to false, where"
<< "\n"
<< e1 << " evaluates to " << ::testing::PrintToString(v1);
}
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT1.
// Don't use this in your code.
#define GTEST_PRED_FORMAT1_(pred_format, v1, on_failure)\
GTEST_ASSERT_(pred_format(#v1, v1), \
on_failure)
// Internal macro for implementing {EXPECT|ASSERT}_PRED1. Don't use
// this in your code.
#define GTEST_PRED1_(pred, v1, on_failure)\
GTEST_ASSERT_(::testing::AssertPred1Helper(#pred, \
#v1, \
pred, \
v1), on_failure)
// Unary predicate assertion macros.
#define EXPECT_PRED_FORMAT1(pred_format, v1) \
GTEST_PRED_FORMAT1_(pred_format, v1, GTEST_NONFATAL_FAILURE_)
#define EXPECT_PRED1(pred, v1) \
GTEST_PRED1_(pred, v1, GTEST_NONFATAL_FAILURE_)
#define ASSERT_PRED_FORMAT1(pred_format, v1) \
GTEST_PRED_FORMAT1_(pred_format, v1, GTEST_FATAL_FAILURE_)
#define ASSERT_PRED1(pred, v1) \
GTEST_PRED1_(pred, v1, GTEST_FATAL_FAILURE_)
// Helper function for implementing {EXPECT|ASSERT}_PRED2. Don't use
// this in your code.
template <typename Pred,
typename T1,
typename T2>
AssertionResult AssertPred2Helper(const char* pred_text,
const char* e1,
const char* e2,
Pred pred,
const T1& v1,
const T2& v2) {
if (pred(v1, v2)) return AssertionSuccess();
return AssertionFailure()
<< pred_text << "(" << e1 << ", " << e2
<< ") evaluates to false, where"
<< "\n"
<< e1 << " evaluates to " << ::testing::PrintToString(v1) << "\n"
<< e2 << " evaluates to " << ::testing::PrintToString(v2);
}
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT2.
// Don't use this in your code.
#define GTEST_PRED_FORMAT2_(pred_format, v1, v2, on_failure)\
GTEST_ASSERT_(pred_format(#v1, #v2, v1, v2), \
on_failure)
// Internal macro for implementing {EXPECT|ASSERT}_PRED2. Don't use
// this in your code.
#define GTEST_PRED2_(pred, v1, v2, on_failure)\
GTEST_ASSERT_(::testing::AssertPred2Helper(#pred, \
#v1, \
#v2, \
pred, \
v1, \
v2), on_failure)
// Binary predicate assertion macros.
#define EXPECT_PRED_FORMAT2(pred_format, v1, v2) \
GTEST_PRED_FORMAT2_(pred_format, v1, v2, GTEST_NONFATAL_FAILURE_)
#define EXPECT_PRED2(pred, v1, v2) \
GTEST_PRED2_(pred, v1, v2, GTEST_NONFATAL_FAILURE_)
#define ASSERT_PRED_FORMAT2(pred_format, v1, v2) \
GTEST_PRED_FORMAT2_(pred_format, v1, v2, GTEST_FATAL_FAILURE_)
#define ASSERT_PRED2(pred, v1, v2) \
GTEST_PRED2_(pred, v1, v2, GTEST_FATAL_FAILURE_)
// Helper function for implementing {EXPECT|ASSERT}_PRED3. Don't use
// this in your code.
template <typename Pred,
typename T1,
typename T2,
typename T3>
AssertionResult AssertPred3Helper(const char* pred_text,
const char* e1,
const char* e2,
const char* e3,
Pred pred,
const T1& v1,
const T2& v2,
const T3& v3) {
if (pred(v1, v2, v3)) return AssertionSuccess();
return AssertionFailure()
<< pred_text << "(" << e1 << ", " << e2 << ", " << e3
<< ") evaluates to false, where"
<< "\n"
<< e1 << " evaluates to " << ::testing::PrintToString(v1) << "\n"
<< e2 << " evaluates to " << ::testing::PrintToString(v2) << "\n"
<< e3 << " evaluates to " << ::testing::PrintToString(v3);
}
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT3.
// Don't use this in your code.
#define GTEST_PRED_FORMAT3_(pred_format, v1, v2, v3, on_failure)\
GTEST_ASSERT_(pred_format(#v1, #v2, #v3, v1, v2, v3), \
on_failure)
// Internal macro for implementing {EXPECT|ASSERT}_PRED3. Don't use
// this in your code.
#define GTEST_PRED3_(pred, v1, v2, v3, on_failure)\
GTEST_ASSERT_(::testing::AssertPred3Helper(#pred, \
#v1, \
#v2, \
#v3, \
pred, \
v1, \
v2, \
v3), on_failure)
// Ternary predicate assertion macros.
#define EXPECT_PRED_FORMAT3(pred_format, v1, v2, v3) \
GTEST_PRED_FORMAT3_(pred_format, v1, v2, v3, GTEST_NONFATAL_FAILURE_)
#define EXPECT_PRED3(pred, v1, v2, v3) \
GTEST_PRED3_(pred, v1, v2, v3, GTEST_NONFATAL_FAILURE_)
#define ASSERT_PRED_FORMAT3(pred_format, v1, v2, v3) \
GTEST_PRED_FORMAT3_(pred_format, v1, v2, v3, GTEST_FATAL_FAILURE_)
#define ASSERT_PRED3(pred, v1, v2, v3) \
GTEST_PRED3_(pred, v1, v2, v3, GTEST_FATAL_FAILURE_)
// Helper function for implementing {EXPECT|ASSERT}_PRED4. Don't use
// this in your code.
template <typename Pred,
typename T1,
typename T2,
typename T3,
typename T4>
AssertionResult AssertPred4Helper(const char* pred_text,
const char* e1,
const char* e2,
const char* e3,
const char* e4,
Pred pred,
const T1& v1,
const T2& v2,
const T3& v3,
const T4& v4) {
if (pred(v1, v2, v3, v4)) return AssertionSuccess();
return AssertionFailure()
<< pred_text << "(" << e1 << ", " << e2 << ", " << e3 << ", " << e4
<< ") evaluates to false, where"
<< "\n"
<< e1 << " evaluates to " << ::testing::PrintToString(v1) << "\n"
<< e2 << " evaluates to " << ::testing::PrintToString(v2) << "\n"
<< e3 << " evaluates to " << ::testing::PrintToString(v3) << "\n"
<< e4 << " evaluates to " << ::testing::PrintToString(v4);
}
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT4.
// Don't use this in your code.
#define GTEST_PRED_FORMAT4_(pred_format, v1, v2, v3, v4, on_failure)\
GTEST_ASSERT_(pred_format(#v1, #v2, #v3, #v4, v1, v2, v3, v4), \
on_failure)
// Internal macro for implementing {EXPECT|ASSERT}_PRED4. Don't use
// this in your code.
#define GTEST_PRED4_(pred, v1, v2, v3, v4, on_failure)\
GTEST_ASSERT_(::testing::AssertPred4Helper(#pred, \
#v1, \
#v2, \
#v3, \
#v4, \
pred, \
v1, \
v2, \
v3, \
v4), on_failure)
// 4-ary predicate assertion macros.
#define EXPECT_PRED_FORMAT4(pred_format, v1, v2, v3, v4) \
GTEST_PRED_FORMAT4_(pred_format, v1, v2, v3, v4, GTEST_NONFATAL_FAILURE_)
#define EXPECT_PRED4(pred, v1, v2, v3, v4) \
GTEST_PRED4_(pred, v1, v2, v3, v4, GTEST_NONFATAL_FAILURE_)
#define ASSERT_PRED_FORMAT4(pred_format, v1, v2, v3, v4) \
GTEST_PRED_FORMAT4_(pred_format, v1, v2, v3, v4, GTEST_FATAL_FAILURE_)
#define ASSERT_PRED4(pred, v1, v2, v3, v4) \
GTEST_PRED4_(pred, v1, v2, v3, v4, GTEST_FATAL_FAILURE_)
// Helper function for implementing {EXPECT|ASSERT}_PRED5. Don't use
// this in your code.
template <typename Pred,
typename T1,
typename T2,
typename T3,
typename T4,
typename T5>
AssertionResult AssertPred5Helper(const char* pred_text,
const char* e1,
const char* e2,
const char* e3,
const char* e4,
const char* e5,
Pred pred,
const T1& v1,
const T2& v2,
const T3& v3,
const T4& v4,
const T5& v5) {
if (pred(v1, v2, v3, v4, v5)) return AssertionSuccess();
return AssertionFailure()
<< pred_text << "(" << e1 << ", " << e2 << ", " << e3 << ", " << e4
<< ", " << e5 << ") evaluates to false, where"
<< "\n"
<< e1 << " evaluates to " << ::testing::PrintToString(v1) << "\n"
<< e2 << " evaluates to " << ::testing::PrintToString(v2) << "\n"
<< e3 << " evaluates to " << ::testing::PrintToString(v3) << "\n"
<< e4 << " evaluates to " << ::testing::PrintToString(v4) << "\n"
<< e5 << " evaluates to " << ::testing::PrintToString(v5);
}
// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT5.
// Don't use this in your code.
#define GTEST_PRED_FORMAT5_(pred_format, v1, v2, v3, v4, v5, on_failure)\
GTEST_ASSERT_(pred_format(#v1, #v2, #v3, #v4, #v5, v1, v2, v3, v4, v5), \
on_failure)
// Internal macro for implementing {EXPECT|ASSERT}_PRED5. Don't use
// this in your code.
#define GTEST_PRED5_(pred, v1, v2, v3, v4, v5, on_failure)\
GTEST_ASSERT_(::testing::AssertPred5Helper(#pred, \
#v1, \
#v2, \
#v3, \
#v4, \
#v5, \
pred, \
v1, \
v2, \
v3, \
v4, \
v5), on_failure)
// 5-ary predicate assertion macros.
#define EXPECT_PRED_FORMAT5(pred_format, v1, v2, v3, v4, v5) \
GTEST_PRED_FORMAT5_(pred_format, v1, v2, v3, v4, v5, GTEST_NONFATAL_FAILURE_)
#define EXPECT_PRED5(pred, v1, v2, v3, v4, v5) \
GTEST_PRED5_(pred, v1, v2, v3, v4, v5, GTEST_NONFATAL_FAILURE_)
#define ASSERT_PRED_FORMAT5(pred_format, v1, v2, v3, v4, v5) \
GTEST_PRED_FORMAT5_(pred_format, v1, v2, v3, v4, v5, GTEST_FATAL_FAILURE_)
#define ASSERT_PRED5(pred, v1, v2, v3, v4, v5) \
GTEST_PRED5_(pred, v1, v2, v3, v4, v5, GTEST_FATAL_FAILURE_)
} // namespace testing
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
namespace testing {
// The abstract class that all tests inherit from.
//
// In Google Test, a unit test program contains one or many TestSuites, and
// each TestSuite contains one or many Tests.
//
// When you define a test using the TEST macro, you don't need to
// explicitly derive from Test - the TEST macro automatically does
// this for you.
//
// The only time you derive from Test is when defining a test fixture
// to be used in a TEST_F. For example:
//
// class FooTest : public testing::Test {
// protected:
// void SetUp() override { ... }
// void TearDown() override { ... }
// ...
// };
//
// TEST_F(FooTest, Bar) { ... }
// TEST_F(FooTest, Baz) { ... }
//
// Test is not copyable.
class GTEST_API_ Test {
public:
friend class TestInfo;
// The d'tor is virtual as we intend to inherit from Test.
virtual ~Test();
// Sets up the stuff shared by all tests in this test suite.
//
// Google Test will call Foo::SetUpTestSuite() before running the first
// test in test suite Foo. Hence a sub-class can define its own
// SetUpTestSuite() method to shadow the one defined in the super
// class.
static void SetUpTestSuite() {}
// Tears down the stuff shared by all tests in this test suite.
//
// Google Test will call Foo::TearDownTestSuite() after running the last
// test in test suite Foo. Hence a sub-class can define its own
// TearDownTestSuite() method to shadow the one defined in the super
// class.
static void TearDownTestSuite() {}
// Legacy API is deprecated but still available. Use SetUpTestSuite and
// TearDownTestSuite instead.
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
static void TearDownTestCase() {}
static void SetUpTestCase() {}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Returns true if and only if the current test has a fatal failure.
static bool HasFatalFailure();
// Returns true if and only if the current test has a non-fatal failure.
static bool HasNonfatalFailure();
// Returns true if and only if the current test was skipped.
static bool IsSkipped();
// Returns true if and only if the current test has a (either fatal or
// non-fatal) failure.
static bool HasFailure() { return HasFatalFailure() || HasNonfatalFailure(); }
// Logs a property for the current test, test suite, or for the entire
// invocation of the test program when used outside of the context of a
// test suite. Only the last value for a given key is remembered. These
// are public static so they can be called from utility functions that are
// not members of the test fixture. Calls to RecordProperty made during
// lifespan of the test (from the moment its constructor starts to the
// moment its destructor finishes) will be output in XML as attributes of
// the <testcase> element. Properties recorded from fixture's
// SetUpTestSuite or TearDownTestSuite are logged as attributes of the
// corresponding <testsuite> element. Calls to RecordProperty made in the
// global context (before or after invocation of RUN_ALL_TESTS and from
// SetUp/TearDown method of Environment objects registered with Google
// Test) will be output as attributes of the <testsuites> element.
static void RecordProperty(const std::string& key, const std::string& value);
static void RecordProperty(const std::string& key, int value);
protected:
// Creates a Test object.
Test();
// Sets up the test fixture.
virtual void SetUp();
// Tears down the test fixture.
virtual void TearDown();
private:
// Returns true if and only if the current test has the same fixture class
// as the first test in the current test suite.
static bool HasSameFixtureClass();
// Runs the test after the test fixture has been set up.
//
// A sub-class must implement this to define the test logic.
//
// DO NOT OVERRIDE THIS FUNCTION DIRECTLY IN A USER PROGRAM.
// Instead, use the TEST or TEST_F macro.
virtual void TestBody() = 0;
// Sets up, executes, and tears down the test.
void Run();
// Deletes self. We deliberately pick an unusual name for this
// internal method to avoid clashing with names used in user TESTs.
void DeleteSelf_() { delete this; }
const std::unique_ptr<GTEST_FLAG_SAVER_> gtest_flag_saver_;
// Often a user misspells SetUp() as Setup() and spends a long time
// wondering why it is never called by Google Test. The declaration of
// the following method is solely for catching such an error at
// compile time:
//
// - The return type is deliberately chosen to be not void, so it
// will be a conflict if void Setup() is declared in the user's
// test fixture.
//
// - This method is private, so it will be another compiler error
// if the method is called from the user's test fixture.
//
// DO NOT OVERRIDE THIS FUNCTION.
//
// If you see an error about overriding the following function or
// about it being private, you have mis-spelled SetUp() as Setup().
struct Setup_should_be_spelled_SetUp {};
virtual Setup_should_be_spelled_SetUp* Setup() { return nullptr; }
// We disallow copying Tests.
GTEST_DISALLOW_COPY_AND_ASSIGN_(Test);
};
typedef internal::TimeInMillis TimeInMillis;
// A copyable object representing a user specified test property which can be
// output as a key/value string pair.
//
// Don't inherit from TestProperty as its destructor is not virtual.
class TestProperty {
public:
// C'tor. TestProperty does NOT have a default constructor.
// Always use this constructor (with parameters) to create a
// TestProperty object.
TestProperty(const std::string& a_key, const std::string& a_value) :
key_(a_key), value_(a_value) {
}
// Gets the user supplied key.
const char* key() const {
return key_.c_str();
}
// Gets the user supplied value.
const char* value() const {
return value_.c_str();
}
// Sets a new value, overriding the one supplied in the constructor.
void SetValue(const std::string& new_value) {
value_ = new_value;
}
private:
// The key supplied by the user.
std::string key_;
// The value supplied by the user.
std::string value_;
};
// The result of a single Test. This includes a list of
// TestPartResults, a list of TestProperties, a count of how many
// death tests there are in the Test, and how much time it took to run
// the Test.
//
// TestResult is not copyable.
class GTEST_API_ TestResult {
public:
// Creates an empty TestResult.
TestResult();
// D'tor. Do not inherit from TestResult.
~TestResult();
// Gets the number of all test parts. This is the sum of the number
// of successful test parts and the number of failed test parts.
int total_part_count() const;
// Returns the number of the test properties.
int test_property_count() const;
// Returns true if and only if the test passed (i.e. no test part failed).
bool Passed() const { return !Skipped() && !Failed(); }
// Returns true if and only if the test was skipped.
bool Skipped() const;
// Returns true if and only if the test failed.
bool Failed() const;
// Returns true if and only if the test fatally failed.
bool HasFatalFailure() const;
// Returns true if and only if the test has a non-fatal failure.
bool HasNonfatalFailure() const;
// Returns the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const { return elapsed_time_; }
// Gets the time of the test case start, in ms from the start of the
// UNIX epoch.
TimeInMillis start_timestamp() const { return start_timestamp_; }
// Returns the i-th test part result among all the results. i can range from 0
// to total_part_count() - 1. If i is not in that range, aborts the program.
const TestPartResult& GetTestPartResult(int i) const;
// Returns the i-th test property. i can range from 0 to
// test_property_count() - 1. If i is not in that range, aborts the
// program.
const TestProperty& GetTestProperty(int i) const;
private:
friend class TestInfo;
friend class TestSuite;
friend class UnitTest;
friend class internal::DefaultGlobalTestPartResultReporter;
friend class internal::ExecDeathTest;
friend class internal::TestResultAccessor;
friend class internal::UnitTestImpl;
friend class internal::WindowsDeathTest;
friend class internal::FuchsiaDeathTest;
// Gets the vector of TestPartResults.
const std::vector<TestPartResult>& test_part_results() const {
return test_part_results_;
}
// Gets the vector of TestProperties.
const std::vector<TestProperty>& test_properties() const {
return test_properties_;
}
// Sets the start time.
void set_start_timestamp(TimeInMillis start) { start_timestamp_ = start; }
// Sets the elapsed time.
void set_elapsed_time(TimeInMillis elapsed) { elapsed_time_ = elapsed; }
// Adds a test property to the list. The property is validated and may add
// a non-fatal failure if invalid (e.g., if it conflicts with reserved
// key names). If a property is already recorded for the same key, the
// value will be updated, rather than storing multiple values for the same
// key. xml_element specifies the element for which the property is being
// recorded and is used for validation.
void RecordProperty(const std::string& xml_element,
const TestProperty& test_property);
// Adds a failure if the key is a reserved attribute of Google Test
// testsuite tags. Returns true if the property is valid.
// FIXME: Validate attribute names are legal and human readable.
static bool ValidateTestProperty(const std::string& xml_element,
const TestProperty& test_property);
// Adds a test part result to the list.
void AddTestPartResult(const TestPartResult& test_part_result);
// Returns the death test count.
int death_test_count() const { return death_test_count_; }
// Increments the death test count, returning the new count.
int increment_death_test_count() { return ++death_test_count_; }
// Clears the test part results.
void ClearTestPartResults();
// Clears the object.
void Clear();
// Protects mutable state of the property vector and of owned
// properties, whose values may be updated.
internal::Mutex test_properties_mutex_;
// The vector of TestPartResults
std::vector<TestPartResult> test_part_results_;
// The vector of TestProperties
std::vector<TestProperty> test_properties_;
// Running count of death tests.
int death_test_count_;
// The start time, in milliseconds since UNIX Epoch.
TimeInMillis start_timestamp_;
// The elapsed time, in milliseconds.
TimeInMillis elapsed_time_;
// We disallow copying TestResult.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestResult);
}; // class TestResult
// A TestInfo object stores the following information about a test:
//
// Test suite name
// Test name
// Whether the test should be run
// A function pointer that creates the test object when invoked
// Test result
//
// The constructor of TestInfo registers itself with the UnitTest
// singleton such that the RUN_ALL_TESTS() macro knows which tests to
// run.
class GTEST_API_ TestInfo {
public:
// Destructs a TestInfo object. This function is not virtual, so
// don't inherit from TestInfo.
~TestInfo();
// Returns the test suite name.
const char* test_suite_name() const { return test_suite_name_.c_str(); }
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
const char* test_case_name() const { return test_suite_name(); }
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Returns the test name.
const char* name() const { return name_.c_str(); }
// Returns the name of the parameter type, or NULL if this is not a typed
// or a type-parameterized test.
const char* type_param() const {
if (type_param_.get() != nullptr) return type_param_->c_str();
return nullptr;
}
// Returns the text representation of the value parameter, or NULL if this
// is not a value-parameterized test.
const char* value_param() const {
if (value_param_.get() != nullptr) return value_param_->c_str();
return nullptr;
}
// Returns the file name where this test is defined.
const char* file() const { return location_.file.c_str(); }
// Returns the line where this test is defined.
int line() const { return location_.line; }
// Return true if this test should not be run because it's in another shard.
bool is_in_another_shard() const { return is_in_another_shard_; }
// Returns true if this test should run, that is if the test is not
// disabled (or it is disabled but the also_run_disabled_tests flag has
// been specified) and its full name matches the user-specified filter.
//
// Google Test allows the user to filter the tests by their full names.
// The full name of a test Bar in test suite Foo is defined as
// "Foo.Bar". Only the tests that match the filter will run.
//
// A filter is a colon-separated list of glob (not regex) patterns,
// optionally followed by a '-' and a colon-separated list of
// negative patterns (tests to exclude). A test is run if it
// matches one of the positive patterns and does not match any of
// the negative patterns.
//
// For example, *A*:Foo.* is a filter that matches any string that
// contains the character 'A' or starts with "Foo.".
bool should_run() const { return should_run_; }
// Returns true if and only if this test will appear in the XML report.
bool is_reportable() const {
// The XML report includes tests matching the filter, excluding those
// run in other shards.
return matches_filter_ && !is_in_another_shard_;
}
// Returns the result of the test.
const TestResult* result() const { return &result_; }
private:
#if GTEST_HAS_DEATH_TEST
friend class internal::DefaultDeathTestFactory;
#endif // GTEST_HAS_DEATH_TEST
friend class Test;
friend class TestSuite;
friend class internal::UnitTestImpl;
friend class internal::StreamingListenerTest;
friend TestInfo* internal::MakeAndRegisterTestInfo(
const char* test_suite_name, const char* name, const char* type_param,
const char* value_param, internal::CodeLocation code_location,
internal::TypeId fixture_class_id, internal::SetUpTestSuiteFunc set_up_tc,
internal::TearDownTestSuiteFunc tear_down_tc,
internal::TestFactoryBase* factory);
// Constructs a TestInfo object. The newly constructed instance assumes
// ownership of the factory object.
TestInfo(const std::string& test_suite_name, const std::string& name,
const char* a_type_param, // NULL if not a type-parameterized test
const char* a_value_param, // NULL if not a value-parameterized test
internal::CodeLocation a_code_location,
internal::TypeId fixture_class_id,
internal::TestFactoryBase* factory);
// Increments the number of death tests encountered in this test so
// far.
int increment_death_test_count() {
return result_.increment_death_test_count();
}
// Creates the test object, runs it, records its result, and then
// deletes it.
void Run();
// Skip and records the test result for this object.
void Skip();
static void ClearTestResult(TestInfo* test_info) {
test_info->result_.Clear();
}
// These fields are immutable properties of the test.
const std::string test_suite_name_; // test suite name
const std::string name_; // Test name
// Name of the parameter type, or NULL if this is not a typed or a
// type-parameterized test.
const std::unique_ptr<const ::std::string> type_param_;
// Text representation of the value parameter, or NULL if this is not a
// value-parameterized test.
const std::unique_ptr<const ::std::string> value_param_;
internal::CodeLocation location_;
const internal::TypeId fixture_class_id_; // ID of the test fixture class
bool should_run_; // True if and only if this test should run
bool is_disabled_; // True if and only if this test is disabled
bool matches_filter_; // True if this test matches the
// user-specified filter.
bool is_in_another_shard_; // Will be run in another shard.
internal::TestFactoryBase* const factory_; // The factory that creates
// the test object
// This field is mutable and needs to be reset before running the
// test for the second time.
TestResult result_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestInfo);
};
// A test suite, which consists of a vector of TestInfos.
//
// TestSuite is not copyable.
class GTEST_API_ TestSuite {
public:
// Creates a TestSuite with the given name.
//
// TestSuite does NOT have a default constructor. Always use this
// constructor to create a TestSuite object.
//
// Arguments:
//
// name: name of the test suite
// a_type_param: the name of the test's type parameter, or NULL if
// this is not a type-parameterized test.
// set_up_tc: pointer to the function that sets up the test suite
// tear_down_tc: pointer to the function that tears down the test suite
TestSuite(const char* name, const char* a_type_param,
internal::SetUpTestSuiteFunc set_up_tc,
internal::TearDownTestSuiteFunc tear_down_tc);
// Destructor of TestSuite.
virtual ~TestSuite();
// Gets the name of the TestSuite.
const char* name() const { return name_.c_str(); }
// Returns the name of the parameter type, or NULL if this is not a
// type-parameterized test suite.
const char* type_param() const {
if (type_param_.get() != nullptr) return type_param_->c_str();
return nullptr;
}
// Returns true if any test in this test suite should run.
bool should_run() const { return should_run_; }
// Gets the number of successful tests in this test suite.
int successful_test_count() const;
// Gets the number of skipped tests in this test suite.
int skipped_test_count() const;
// Gets the number of failed tests in this test suite.
int failed_test_count() const;
// Gets the number of disabled tests that will be reported in the XML report.
int reportable_disabled_test_count() const;
// Gets the number of disabled tests in this test suite.
int disabled_test_count() const;
// Gets the number of tests to be printed in the XML report.
int reportable_test_count() const;
// Get the number of tests in this test suite that should run.
int test_to_run_count() const;
// Gets the number of all tests in this test suite.
int total_test_count() const;
// Returns true if and only if the test suite passed.
bool Passed() const { return !Failed(); }
// Returns true if and only if the test suite failed.
bool Failed() const {
return failed_test_count() > 0 || ad_hoc_test_result().Failed();
}
// Returns the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const { return elapsed_time_; }
// Gets the time of the test suite start, in ms from the start of the
// UNIX epoch.
TimeInMillis start_timestamp() const { return start_timestamp_; }
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
const TestInfo* GetTestInfo(int i) const;
// Returns the TestResult that holds test properties recorded during
// execution of SetUpTestSuite and TearDownTestSuite.
const TestResult& ad_hoc_test_result() const { return ad_hoc_test_result_; }
private:
friend class Test;
friend class internal::UnitTestImpl;
// Gets the (mutable) vector of TestInfos in this TestSuite.
std::vector<TestInfo*>& test_info_list() { return test_info_list_; }
// Gets the (immutable) vector of TestInfos in this TestSuite.
const std::vector<TestInfo*>& test_info_list() const {
return test_info_list_;
}
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
TestInfo* GetMutableTestInfo(int i);
// Sets the should_run member.
void set_should_run(bool should) { should_run_ = should; }
// Adds a TestInfo to this test suite. Will delete the TestInfo upon
// destruction of the TestSuite object.
void AddTestInfo(TestInfo * test_info);
// Clears the results of all tests in this test suite.
void ClearResult();
// Clears the results of all tests in the given test suite.
static void ClearTestSuiteResult(TestSuite* test_suite) {
test_suite->ClearResult();
}
// Runs every test in this TestSuite.
void Run();
// Skips the execution of tests under this TestSuite
void Skip();
// Runs SetUpTestSuite() for this TestSuite. This wrapper is needed
// for catching exceptions thrown from SetUpTestSuite().
void RunSetUpTestSuite() {
if (set_up_tc_ != nullptr) {
(*set_up_tc_)();
}
}
// Runs TearDownTestSuite() for this TestSuite. This wrapper is
// needed for catching exceptions thrown from TearDownTestSuite().
void RunTearDownTestSuite() {
if (tear_down_tc_ != nullptr) {
(*tear_down_tc_)();
}
}
// Returns true if and only if test passed.
static bool TestPassed(const TestInfo* test_info) {
return test_info->should_run() && test_info->result()->Passed();
}
// Returns true if and only if test skipped.
static bool TestSkipped(const TestInfo* test_info) {
return test_info->should_run() && test_info->result()->Skipped();
}
// Returns true if and only if test failed.
static bool TestFailed(const TestInfo* test_info) {
return test_info->should_run() && test_info->result()->Failed();
}
// Returns true if and only if the test is disabled and will be reported in
// the XML report.
static bool TestReportableDisabled(const TestInfo* test_info) {
return test_info->is_reportable() && test_info->is_disabled_;
}
// Returns true if and only if test is disabled.
static bool TestDisabled(const TestInfo* test_info) {
return test_info->is_disabled_;
}
// Returns true if and only if this test will appear in the XML report.
static bool TestReportable(const TestInfo* test_info) {
return test_info->is_reportable();
}
// Returns true if the given test should run.
static bool ShouldRunTest(const TestInfo* test_info) {
return test_info->should_run();
}
// Shuffles the tests in this test suite.
void ShuffleTests(internal::Random* random);
// Restores the test order to before the first shuffle.
void UnshuffleTests();
// Name of the test suite.
std::string name_;
// Name of the parameter type, or NULL if this is not a typed or a
// type-parameterized test.
const std::unique_ptr<const ::std::string> type_param_;
// The vector of TestInfos in their original order. It owns the
// elements in the vector.
std::vector<TestInfo*> test_info_list_;
// Provides a level of indirection for the test list to allow easy
// shuffling and restoring the test order. The i-th element in this
// vector is the index of the i-th test in the shuffled test list.
std::vector<int> test_indices_;
// Pointer to the function that sets up the test suite.
internal::SetUpTestSuiteFunc set_up_tc_;
// Pointer to the function that tears down the test suite.
internal::TearDownTestSuiteFunc tear_down_tc_;
// True if and only if any test in this test suite should run.
bool should_run_;
// The start time, in milliseconds since UNIX Epoch.
TimeInMillis start_timestamp_;
// Elapsed time, in milliseconds.
TimeInMillis elapsed_time_;
// Holds test properties recorded during execution of SetUpTestSuite and
// TearDownTestSuite.
TestResult ad_hoc_test_result_;
// We disallow copying TestSuites.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestSuite);
};
// An Environment object is capable of setting up and tearing down an
// environment. You should subclass this to define your own
// environment(s).
//
// An Environment object does the set-up and tear-down in virtual
// methods SetUp() and TearDown() instead of the constructor and the
// destructor, as:
//
// 1. You cannot safely throw from a destructor. This is a problem
// as in some cases Google Test is used where exceptions are enabled, and
// we may want to implement ASSERT_* using exceptions where they are
// available.
// 2. You cannot use ASSERT_* directly in a constructor or
// destructor.
class Environment {
public:
// The d'tor is virtual as we need to subclass Environment.
virtual ~Environment() {}
// Override this to define how to set up the environment.
virtual void SetUp() {}
// Override this to define how to tear down the environment.
virtual void TearDown() {}
private:
// If you see an error about overriding the following function or
// about it being private, you have mis-spelled SetUp() as Setup().
struct Setup_should_be_spelled_SetUp {};
virtual Setup_should_be_spelled_SetUp* Setup() { return nullptr; }
};
#if GTEST_HAS_EXCEPTIONS
// Exception which can be thrown from TestEventListener::OnTestPartResult.
class GTEST_API_ AssertionException
: public internal::GoogleTestFailureException {
public:
explicit AssertionException(const TestPartResult& result)
: GoogleTestFailureException(result) {}
};
#endif // GTEST_HAS_EXCEPTIONS
// The interface for tracing execution of tests. The methods are organized in
// the order the corresponding events are fired.
class TestEventListener {
public:
virtual ~TestEventListener() {}
// Fired before any test activity starts.
virtual void OnTestProgramStart(const UnitTest& unit_test) = 0;
// Fired before each iteration of tests starts. There may be more than
// one iteration if GTEST_FLAG(repeat) is set. iteration is the iteration
// index, starting from 0.
virtual void OnTestIterationStart(const UnitTest& unit_test,
int iteration) = 0;
// Fired before environment set-up for each iteration of tests starts.
virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test) = 0;
// Fired after environment set-up for each iteration of tests ends.
virtual void OnEnvironmentsSetUpEnd(const UnitTest& unit_test) = 0;
// Fired before the test suite starts.
virtual void OnTestSuiteStart(const TestSuite& /*test_suite*/) {}
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
virtual void OnTestCaseStart(const TestCase& /*test_case*/) {}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Fired before the test starts.
virtual void OnTestStart(const TestInfo& test_info) = 0;
// Fired after a failed assertion or a SUCCEED() invocation.
// If you want to throw an exception from this function to skip to the next
// TEST, it must be AssertionException defined above, or inherited from it.
virtual void OnTestPartResult(const TestPartResult& test_part_result) = 0;
// Fired after the test ends.
virtual void OnTestEnd(const TestInfo& test_info) = 0;
// Fired after the test suite ends.
virtual void OnTestSuiteEnd(const TestSuite& /*test_suite*/) {}
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
virtual void OnTestCaseEnd(const TestCase& /*test_case*/) {}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Fired before environment tear-down for each iteration of tests starts.
virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test) = 0;
// Fired after environment tear-down for each iteration of tests ends.
virtual void OnEnvironmentsTearDownEnd(const UnitTest& unit_test) = 0;
// Fired after each iteration of tests finishes.
virtual void OnTestIterationEnd(const UnitTest& unit_test,
int iteration) = 0;
// Fired after all test activities have ended.
virtual void OnTestProgramEnd(const UnitTest& unit_test) = 0;
};
// The convenience class for users who need to override just one or two
// methods and are not concerned that a possible change to a signature of
// the methods they override will not be caught during the build. For
// comments about each method please see the definition of TestEventListener
// above.
class EmptyTestEventListener : public TestEventListener {
public:
void OnTestProgramStart(const UnitTest& /*unit_test*/) override {}
void OnTestIterationStart(const UnitTest& /*unit_test*/,
int /*iteration*/) override {}
void OnEnvironmentsSetUpStart(const UnitTest& /*unit_test*/) override {}
void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) override {}
void OnTestSuiteStart(const TestSuite& /*test_suite*/) override {}
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
void OnTestCaseStart(const TestCase& /*test_case*/) override {}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
void OnTestStart(const TestInfo& /*test_info*/) override {}
void OnTestPartResult(const TestPartResult& /*test_part_result*/) override {}
void OnTestEnd(const TestInfo& /*test_info*/) override {}
void OnTestSuiteEnd(const TestSuite& /*test_suite*/) override {}
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
void OnTestCaseEnd(const TestCase& /*test_case*/) override {}
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) override {}
void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) override {}
void OnTestIterationEnd(const UnitTest& /*unit_test*/,
int /*iteration*/) override {}
void OnTestProgramEnd(const UnitTest& /*unit_test*/) override {}
};
// TestEventListeners lets users add listeners to track events in Google Test.
class GTEST_API_ TestEventListeners {
public:
TestEventListeners();
~TestEventListeners();
// Appends an event listener to the end of the list. Google Test assumes
// the ownership of the listener (i.e. it will delete the listener when
// the test program finishes).
void Append(TestEventListener* listener);
// Removes the given event listener from the list and returns it. It then
// becomes the caller's responsibility to delete the listener. Returns
// NULL if the listener is not found in the list.
TestEventListener* Release(TestEventListener* listener);
// Returns the standard listener responsible for the default console
// output. Can be removed from the listeners list to shut down default
// console output. Note that removing this object from the listener list
// with Release transfers its ownership to the caller and makes this
// function return NULL the next time.
TestEventListener* default_result_printer() const {
return default_result_printer_;
}
// Returns the standard listener responsible for the default XML output
// controlled by the --gtest_output=xml flag. Can be removed from the
// listeners list by users who want to shut down the default XML output
// controlled by this flag and substitute it with custom one. Note that
// removing this object from the listener list with Release transfers its
// ownership to the caller and makes this function return NULL the next
// time.
TestEventListener* default_xml_generator() const {
return default_xml_generator_;
}
private:
friend class TestSuite;
friend class TestInfo;
friend class internal::DefaultGlobalTestPartResultReporter;
friend class internal::NoExecDeathTest;
friend class internal::TestEventListenersAccessor;
friend class internal::UnitTestImpl;
// Returns repeater that broadcasts the TestEventListener events to all
// subscribers.
TestEventListener* repeater();
// Sets the default_result_printer attribute to the provided listener.
// The listener is also added to the listener list and previous
// default_result_printer is removed from it and deleted. The listener can
// also be NULL in which case it will not be added to the list. Does
// nothing if the previous and the current listener objects are the same.
void SetDefaultResultPrinter(TestEventListener* listener);
// Sets the default_xml_generator attribute to the provided listener. The
// listener is also added to the listener list and previous
// default_xml_generator is removed from it and deleted. The listener can
// also be NULL in which case it will not be added to the list. Does
// nothing if the previous and the current listener objects are the same.
void SetDefaultXmlGenerator(TestEventListener* listener);
// Controls whether events will be forwarded by the repeater to the
// listeners in the list.
bool EventForwardingEnabled() const;
void SuppressEventForwarding();
// The actual list of listeners.
internal::TestEventRepeater* repeater_;
// Listener responsible for the standard result output.
TestEventListener* default_result_printer_;
// Listener responsible for the creation of the XML output file.
TestEventListener* default_xml_generator_;
// We disallow copying TestEventListeners.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestEventListeners);
};
// A UnitTest consists of a vector of TestSuites.
//
// This is a singleton class. The only instance of UnitTest is
// created when UnitTest::GetInstance() is first called. This
// instance is never deleted.
//
// UnitTest is not copyable.
//
// This class is thread-safe as long as the methods are called
// according to their specification.
class GTEST_API_ UnitTest {
public:
// Gets the singleton UnitTest object. The first time this method
// is called, a UnitTest object is constructed and returned.
// Consecutive calls will return the same object.
static UnitTest* GetInstance();
// Runs all tests in this UnitTest object and prints the result.
// Returns 0 if successful, or 1 otherwise.
//
// This method can only be called from the main thread.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
int Run() GTEST_MUST_USE_RESULT_;
// Returns the working directory when the first TEST() or TEST_F()
// was executed. The UnitTest object owns the string.
const char* original_working_dir() const;
// Returns the TestSuite object for the test that's currently running,
// or NULL if no test is running.
const TestSuite* current_test_suite() const GTEST_LOCK_EXCLUDED_(mutex_);
// Legacy API is still available but deprecated
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
const TestCase* current_test_case() const GTEST_LOCK_EXCLUDED_(mutex_);
#endif
// Returns the TestInfo object for the test that's currently running,
// or NULL if no test is running.
const TestInfo* current_test_info() const
GTEST_LOCK_EXCLUDED_(mutex_);
// Returns the random seed used at the start of the current test run.
int random_seed() const;
// Returns the ParameterizedTestSuiteRegistry object used to keep track of
// value-parameterized tests and instantiate and register them.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
internal::ParameterizedTestSuiteRegistry& parameterized_test_registry()
GTEST_LOCK_EXCLUDED_(mutex_);
// Gets the number of successful test suites.
int successful_test_suite_count() const;
// Gets the number of failed test suites.
int failed_test_suite_count() const;
// Gets the number of all test suites.
int total_test_suite_count() const;
// Gets the number of all test suites that contain at least one test
// that should run.
int test_suite_to_run_count() const;
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
int successful_test_case_count() const;
int failed_test_case_count() const;
int total_test_case_count() const;
int test_case_to_run_count() const;
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Gets the number of successful tests.
int successful_test_count() const;
// Gets the number of skipped tests.
int skipped_test_count() const;
// Gets the number of failed tests.
int failed_test_count() const;
// Gets the number of disabled tests that will be reported in the XML report.
int reportable_disabled_test_count() const;
// Gets the number of disabled tests.
int disabled_test_count() const;
// Gets the number of tests to be printed in the XML report.
int reportable_test_count() const;
// Gets the number of all tests.
int total_test_count() const;
// Gets the number of tests that should run.
int test_to_run_count() const;
// Gets the time of the test program start, in ms from the start of the
// UNIX epoch.
TimeInMillis start_timestamp() const;
// Gets the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const;
// Returns true if and only if the unit test passed (i.e. all test suites
// passed).
bool Passed() const;
// Returns true if and only if the unit test failed (i.e. some test suite
// failed or something outside of all tests failed).
bool Failed() const;
// Gets the i-th test suite among all the test suites. i can range from 0 to
// total_test_suite_count() - 1. If i is not in that range, returns NULL.
const TestSuite* GetTestSuite(int i) const;
// Legacy API is deprecated but still available
#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
const TestCase* GetTestCase(int i) const;
#endif // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
// Returns the TestResult containing information on test failures and
// properties logged outside of individual test suites.
const TestResult& ad_hoc_test_result() const;
// Returns the list of event listeners that can be used to track events
// inside Google Test.
TestEventListeners& listeners();
private:
// Registers and returns a global test environment. When a test
// program is run, all global test environments will be set-up in
// the order they were registered. After all tests in the program
// have finished, all global test environments will be torn-down in
// the *reverse* order they were registered.
//
// The UnitTest object takes ownership of the given environment.
//
// This method can only be called from the main thread.
Environment* AddEnvironment(Environment* env);
// Adds a TestPartResult to the current TestResult object. All
// Google Test assertion macros (e.g. ASSERT_TRUE, EXPECT_EQ, etc)
// eventually call this to report their results. The user code
// should use the assertion macros instead of calling this directly.
void AddTestPartResult(TestPartResult::Type result_type,
const char* file_name,
int line_number,
const std::string& message,
const std::string& os_stack_trace)
GTEST_LOCK_EXCLUDED_(mutex_);
// Adds a TestProperty to the current TestResult object when invoked from
// inside a test, to current TestSuite's ad_hoc_test_result_ when invoked
// from SetUpTestSuite or TearDownTestSuite, or to the global property set
// when invoked elsewhere. If the result already contains a property with
// the same key, the value will be updated.
void RecordProperty(const std::string& key, const std::string& value);
// Gets the i-th test suite among all the test suites. i can range from 0 to
// total_test_suite_count() - 1. If i is not in that range, returns NULL.
TestSuite* GetMutableTestSuite(int i);
// Accessors for the implementation object.
internal::UnitTestImpl* impl() { return impl_; }
const internal::UnitTestImpl* impl() const { return impl_; }
// These classes and functions are friends as they need to access private
// members of UnitTest.
friend class ScopedTrace;
friend class Test;
friend class internal::AssertHelper;
friend class internal::StreamingListenerTest;
friend class internal::UnitTestRecordPropertyTestHelper;
friend Environment* AddGlobalTestEnvironment(Environment* env);
friend std::set<std::string>* internal::GetIgnoredParameterizedTestSuites();
friend internal::UnitTestImpl* internal::GetUnitTestImpl();
friend void internal::ReportFailureInUnknownLocation(
TestPartResult::Type result_type,
const std::string& message);
// Creates an empty UnitTest.
UnitTest();
// D'tor
virtual ~UnitTest();
// Pushes a trace defined by SCOPED_TRACE() on to the per-thread
// Google Test trace stack.
void PushGTestTrace(const internal::TraceInfo& trace)
GTEST_LOCK_EXCLUDED_(mutex_);
// Pops a trace from the per-thread Google Test trace stack.
void PopGTestTrace()
GTEST_LOCK_EXCLUDED_(mutex_);
// Protects mutable state in *impl_. This is mutable as some const
// methods need to lock it too.
mutable internal::Mutex mutex_;
// Opaque implementation object. This field is never changed once
// the object is constructed. We don't mark it as const here, as
// doing so will cause a warning in the constructor of UnitTest.
// Mutable state in *impl_ is protected by mutex_.
internal::UnitTestImpl* impl_;
// We disallow copying UnitTest.
GTEST_DISALLOW_COPY_AND_ASSIGN_(UnitTest);
};
// A convenient wrapper for adding an environment for the test
// program.
//
// You should call this before RUN_ALL_TESTS() is called, probably in
// main(). If you use gtest_main, you need to call this before main()
// starts for it to take effect. For example, you can define a global
// variable like this:
//
// testing::Environment* const foo_env =
// testing::AddGlobalTestEnvironment(new FooEnvironment);
//
// However, we strongly recommend you to write your own main() and
// call AddGlobalTestEnvironment() there, as relying on initialization
// of global variables makes the code harder to read and may cause
// problems when you register multiple environments from different
// translation units and the environments have dependencies among them
// (remember that the compiler doesn't guarantee the order in which
// global variables from different translation units are initialized).
inline Environment* AddGlobalTestEnvironment(Environment* env) {
return UnitTest::GetInstance()->AddEnvironment(env);
}
// Initializes Google Test. This must be called before calling
// RUN_ALL_TESTS(). In particular, it parses a command line for the
// flags that Google Test recognizes. Whenever a Google Test flag is
// seen, it is removed from argv, and *argc is decremented.
//
// No value is returned. Instead, the Google Test flag variables are
// updated.
//
// Calling the function for the second time has no user-visible effect.
GTEST_API_ void InitGoogleTest(int* argc, char** argv);
// This overloaded version can be used in Windows programs compiled in
// UNICODE mode.
GTEST_API_ void InitGoogleTest(int* argc, wchar_t** argv);
// This overloaded version can be used on Arduino/embedded platforms where
// there is no argc/argv.
GTEST_API_ void InitGoogleTest();
namespace internal {
// Separate the error generating code from the code path to reduce the stack
// frame size of CmpHelperEQ. This helps reduce the overhead of some sanitizers
// when calling EXPECT_* in a tight loop.
template <typename T1, typename T2>
AssertionResult CmpHelperEQFailure(const char* lhs_expression,
const char* rhs_expression,
const T1& lhs, const T2& rhs) {
return EqFailure(lhs_expression,
rhs_expression,
FormatForComparisonFailureMessage(lhs, rhs),
FormatForComparisonFailureMessage(rhs, lhs),
false);
}
// This block of code defines operator==/!=
// to block lexical scope lookup.
// It prevents using invalid operator==/!= defined at namespace scope.
struct faketype {};
inline bool operator==(faketype, faketype) { return true; }
inline bool operator!=(faketype, faketype) { return false; }
// The helper function for {ASSERT|EXPECT}_EQ.
template <typename T1, typename T2>
AssertionResult CmpHelperEQ(const char* lhs_expression,
const char* rhs_expression,
const T1& lhs,
const T2& rhs) {
if (lhs == rhs) {
return AssertionSuccess();
}
return CmpHelperEQFailure(lhs_expression, rhs_expression, lhs, rhs);
}
class EqHelper {
public:
// This templatized version is for the general case.
template <
typename T1, typename T2,
// Disable this overload for cases where one argument is a pointer
// and the other is the null pointer constant.
typename std::enable_if<!std::is_integral<T1>::value ||
!std::is_pointer<T2>::value>::type* = nullptr>
static AssertionResult Compare(const char* lhs_expression,
const char* rhs_expression, const T1& lhs,
const T2& rhs) {
return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
}
// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous
// enums can be implicitly cast to BiggestInt.
//
// Even though its body looks the same as the above version, we
// cannot merge the two, as it will make anonymous enums unhappy.
static AssertionResult Compare(const char* lhs_expression,
const char* rhs_expression,
BiggestInt lhs,
BiggestInt rhs) {
return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
}
template <typename T>
static AssertionResult Compare(
const char* lhs_expression, const char* rhs_expression,
// Handle cases where '0' is used as a null pointer literal.
std::nullptr_t /* lhs */, T* rhs) {
// We already know that 'lhs' is a null pointer.
return CmpHelperEQ(lhs_expression, rhs_expression, static_cast<T*>(nullptr),
rhs);
}
};
// Separate the error generating code from the code path to reduce the stack
// frame size of CmpHelperOP. This helps reduce the overhead of some sanitizers
// when calling EXPECT_OP in a tight loop.
template <typename T1, typename T2>
AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
const T1& val1, const T2& val2,
const char* op) {
return AssertionFailure()
<< "Expected: (" << expr1 << ") " << op << " (" << expr2
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2)
<< " vs " << FormatForComparisonFailureMessage(val2, val1);
}
// A macro for implementing the helper functions needed to implement
// ASSERT_?? and EXPECT_??. It is here just to avoid copy-and-paste
// of similar code.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
#define GTEST_IMPL_CMP_HELPER_(op_name, op)\
template <typename T1, typename T2>\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
const T1& val1, const T2& val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
return CmpHelperOpFailure(expr1, expr2, val1, val2, #op);\
}\
}
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
// Implements the helper function for {ASSERT|EXPECT}_NE
GTEST_IMPL_CMP_HELPER_(NE, !=)
// Implements the helper function for {ASSERT|EXPECT}_LE
GTEST_IMPL_CMP_HELPER_(LE, <=)
// Implements the helper function for {ASSERT|EXPECT}_LT
GTEST_IMPL_CMP_HELPER_(LT, <)
// Implements the helper function for {ASSERT|EXPECT}_GE
GTEST_IMPL_CMP_HELPER_(GE, >=)
// Implements the helper function for {ASSERT|EXPECT}_GT
GTEST_IMPL_CMP_HELPER_(GT, >)
#undef GTEST_IMPL_CMP_HELPER_
// The helper function for {ASSERT|EXPECT}_STREQ.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// The helper function for {ASSERT|EXPECT}_STRCASEEQ.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRCASEEQ(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// The helper function for {ASSERT|EXPECT}_STRNE.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// The helper function for {ASSERT|EXPECT}_STRCASENE.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// Helper function for *_STREQ on wide strings.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
const char* s2_expression,
const wchar_t* s1,
const wchar_t* s2);
// Helper function for *_STRNE on wide strings.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const wchar_t* s1,
const wchar_t* s2);
} // namespace internal
// IsSubstring() and IsNotSubstring() are intended to be used as the
// first argument to {EXPECT,ASSERT}_PRED_FORMAT2(), not by
// themselves. They check whether needle is a substring of haystack
// (NULL is considered a substring of itself only), and return an
// appropriate error message when they fail.
//
// The {needle,haystack}_expr arguments are the stringified
// expressions that generated the two real arguments.
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack);
#if GTEST_HAS_STD_WSTRING
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack);
#endif // GTEST_HAS_STD_WSTRING
namespace internal {
// Helper template function for comparing floating-points.
//
// Template parameter:
//
// RawType: the raw floating-point type (either float or double)
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
template <typename RawType>
AssertionResult CmpHelperFloatingPointEQ(const char* lhs_expression,
const char* rhs_expression,
RawType lhs_value,
RawType rhs_value) {
const FloatingPoint<RawType> lhs(lhs_value), rhs(rhs_value);
if (lhs.AlmostEquals(rhs)) {
return AssertionSuccess();
}
::std::stringstream lhs_ss;
lhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< lhs_value;
::std::stringstream rhs_ss;
rhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< rhs_value;
return EqFailure(lhs_expression,
rhs_expression,
StringStreamToString(&lhs_ss),
StringStreamToString(&rhs_ss),
false);
}
// Helper function for implementing ASSERT_NEAR.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult DoubleNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
double val1,
double val2,
double abs_error);
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
// A class that enables one to stream messages to assertion macros
class GTEST_API_ AssertHelper {
public:
// Constructor.
AssertHelper(TestPartResult::Type type,
const char* file,
int line,
const char* message);
~AssertHelper();
// Message assignment is a semantic trick to enable assertion
// streaming; see the GTEST_MESSAGE_ macro below.
void operator=(const Message& message) const;
private:
// We put our data in a struct so that the size of the AssertHelper class can
// be as small as possible. This is important because gcc is incapable of
// re-using stack space even for temporary variables, so every EXPECT_EQ
// reserves stack space for another AssertHelper.
struct AssertHelperData {
AssertHelperData(TestPartResult::Type t,
const char* srcfile,
int line_num,
const char* msg)
: type(t), file(srcfile), line(line_num), message(msg) { }
TestPartResult::Type const type;
const char* const file;
int const line;
std::string const message;
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelperData);
};
AssertHelperData* const data_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelper);
};
} // namespace internal
// The pure interface class that all value-parameterized tests inherit from.
// A value-parameterized class must inherit from both ::testing::Test and
// ::testing::WithParamInterface. In most cases that just means inheriting
// from ::testing::TestWithParam, but more complicated test hierarchies
// may need to inherit from Test and WithParamInterface at different levels.
//
// This interface has support for accessing the test parameter value via
// the GetParam() method.
//
// Use it with one of the parameter generator defining functions, like Range(),
// Values(), ValuesIn(), Bool(), and Combine().
//
// class FooTest : public ::testing::TestWithParam<int> {
// protected:
// FooTest() {
// // Can use GetParam() here.
// }
// ~FooTest() override {
// // Can use GetParam() here.
// }
// void SetUp() override {
// // Can use GetParam() here.
// }
// void TearDown override {
// // Can use GetParam() here.
// }
// };
// TEST_P(FooTest, DoesBar) {
// // Can use GetParam() method here.
// Foo foo;
// ASSERT_TRUE(foo.DoesBar(GetParam()));
// }
// INSTANTIATE_TEST_SUITE_P(OneToTenRange, FooTest, ::testing::Range(1, 10));
template <typename T>
class WithParamInterface {
public:
typedef T ParamType;
virtual ~WithParamInterface() {}
// The current parameter value. Is also available in the test fixture's
// constructor.
static const ParamType& GetParam() {
GTEST_CHECK_(parameter_ != nullptr)
<< "GetParam() can only be called inside a value-parameterized test "
<< "-- did you intend to write TEST_P instead of TEST_F?";
return *parameter_;
}
private:
// Sets parameter value. The caller is responsible for making sure the value
// remains alive and unchanged throughout the current test.
static void SetParam(const ParamType* parameter) {
parameter_ = parameter;
}
// Static value used for accessing parameter during a test lifetime.
static const ParamType* parameter_;
// TestClass must be a subclass of WithParamInterface<T> and Test.
template <class TestClass> friend class internal::ParameterizedTestFactory;
};
template <typename T>
const T* WithParamInterface<T>::parameter_ = nullptr;
// Most value-parameterized classes can ignore the existence of
// WithParamInterface, and can just inherit from ::testing::TestWithParam.
template <typename T>
class TestWithParam : public Test, public WithParamInterface<T> {
};
// Macros for indicating success/failure in test code.
// Skips test in runtime.
// Skipping test aborts current function.
// Skipped tests are neither successful nor failed.
#define GTEST_SKIP() GTEST_SKIP_("")
// ADD_FAILURE unconditionally adds a failure to the current test.
// SUCCEED generates a success - it doesn't automatically make the
// current test successful, as a test is only successful when it has
// no failure.
//
// EXPECT_* verifies that a certain condition is satisfied. If not,
// it behaves like ADD_FAILURE. In particular:
//
// EXPECT_TRUE verifies that a Boolean condition is true.
// EXPECT_FALSE verifies that a Boolean condition is false.
//
// FAIL and ASSERT_* are similar to ADD_FAILURE and EXPECT_*, except
// that they will also abort the current function on failure. People
// usually want the fail-fast behavior of FAIL and ASSERT_*, but those
// writing data-driven tests often find themselves using ADD_FAILURE
// and EXPECT_* more.
// Generates a nonfatal failure with a generic message.
#define ADD_FAILURE() GTEST_NONFATAL_FAILURE_("Failed")
// Generates a nonfatal failure at the given source file location with
// a generic message.
#define ADD_FAILURE_AT(file, line) \
GTEST_MESSAGE_AT_(file, line, "Failed", \
::testing::TestPartResult::kNonFatalFailure)
// Generates a fatal failure with a generic message.
#define GTEST_FAIL() GTEST_FATAL_FAILURE_("Failed")
// Like GTEST_FAIL(), but at the given source file location.
#define GTEST_FAIL_AT(file, line) \
GTEST_MESSAGE_AT_(file, line, "Failed", \
::testing::TestPartResult::kFatalFailure)
// Define this macro to 1 to omit the definition of FAIL(), which is a
// generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_FAIL
# define FAIL() GTEST_FAIL()
#endif
// Generates a success with a generic message.
#define GTEST_SUCCEED() GTEST_SUCCESS_("Succeeded")
// Define this macro to 1 to omit the definition of SUCCEED(), which
// is a generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_SUCCEED
# define SUCCEED() GTEST_SUCCEED()
#endif
// Macros for testing exceptions.
//
// * {ASSERT|EXPECT}_THROW(statement, expected_exception):
// Tests that the statement throws the expected exception.
// * {ASSERT|EXPECT}_NO_THROW(statement):
// Tests that the statement doesn't throw any exception.
// * {ASSERT|EXPECT}_ANY_THROW(statement):
// Tests that the statement throws an exception.
#define EXPECT_THROW(statement, expected_exception) \
GTEST_TEST_THROW_(statement, expected_exception, GTEST_NONFATAL_FAILURE_)
#define EXPECT_NO_THROW(statement) \
GTEST_TEST_NO_THROW_(statement, GTEST_NONFATAL_FAILURE_)
#define EXPECT_ANY_THROW(statement) \
GTEST_TEST_ANY_THROW_(statement, GTEST_NONFATAL_FAILURE_)
#define ASSERT_THROW(statement, expected_exception) \
GTEST_TEST_THROW_(statement, expected_exception, GTEST_FATAL_FAILURE_)
#define ASSERT_NO_THROW(statement) \
GTEST_TEST_NO_THROW_(statement, GTEST_FATAL_FAILURE_)
#define ASSERT_ANY_THROW(statement) \
GTEST_TEST_ANY_THROW_(statement, GTEST_FATAL_FAILURE_)
// Boolean assertions. Condition can be either a Boolean expression or an
// AssertionResult. For more information on how to use AssertionResult with
// these macros see comments on that class.
#define GTEST_EXPECT_TRUE(condition) \
GTEST_TEST_BOOLEAN_(condition, #condition, false, true, \
GTEST_NONFATAL_FAILURE_)
#define GTEST_EXPECT_FALSE(condition) \
GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
GTEST_NONFATAL_FAILURE_)
#define GTEST_ASSERT_TRUE(condition) \
GTEST_TEST_BOOLEAN_(condition, #condition, false, true, \
GTEST_FATAL_FAILURE_)
#define GTEST_ASSERT_FALSE(condition) \
GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
GTEST_FATAL_FAILURE_)
// Define these macros to 1 to omit the definition of the corresponding
// EXPECT or ASSERT, which clashes with some users' own code.
#if !GTEST_DONT_DEFINE_EXPECT_TRUE
#define EXPECT_TRUE(condition) GTEST_EXPECT_TRUE(condition)
#endif
#if !GTEST_DONT_DEFINE_EXPECT_FALSE
#define EXPECT_FALSE(condition) GTEST_EXPECT_FALSE(condition)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_TRUE
#define ASSERT_TRUE(condition) GTEST_ASSERT_TRUE(condition)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_FALSE
#define ASSERT_FALSE(condition) GTEST_ASSERT_FALSE(condition)
#endif
// Macros for testing equalities and inequalities.
//
// * {ASSERT|EXPECT}_EQ(v1, v2): Tests that v1 == v2
// * {ASSERT|EXPECT}_NE(v1, v2): Tests that v1 != v2
// * {ASSERT|EXPECT}_LT(v1, v2): Tests that v1 < v2
// * {ASSERT|EXPECT}_LE(v1, v2): Tests that v1 <= v2
// * {ASSERT|EXPECT}_GT(v1, v2): Tests that v1 > v2
// * {ASSERT|EXPECT}_GE(v1, v2): Tests that v1 >= v2
//
// When they are not, Google Test prints both the tested expressions and
// their actual values. The values must be compatible built-in types,
// or you will get a compiler error. By "compatible" we mean that the
// values can be compared by the respective operator.
//
// Note:
//
// 1. It is possible to make a user-defined type work with
// {ASSERT|EXPECT}_??(), but that requires overloading the
// comparison operators and is thus discouraged by the Google C++
// Usage Guide. Therefore, you are advised to use the
// {ASSERT|EXPECT}_TRUE() macro to assert that two objects are
// equal.
//
// 2. The {ASSERT|EXPECT}_??() macros do pointer comparisons on
// pointers (in particular, C strings). Therefore, if you use it
// with two C strings, you are testing how their locations in memory
// are related, not how their content is related. To compare two C
// strings by content, use {ASSERT|EXPECT}_STR*().
//
// 3. {ASSERT|EXPECT}_EQ(v1, v2) is preferred to
// {ASSERT|EXPECT}_TRUE(v1 == v2), as the former tells you
// what the actual value is when it fails, and similarly for the
// other comparisons.
//
// 4. Do not depend on the order in which {ASSERT|EXPECT}_??()
// evaluate their arguments, which is undefined.
//
// 5. These macros evaluate their arguments exactly once.
//
// Examples:
//
// EXPECT_NE(Foo(), 5);
// EXPECT_EQ(a_pointer, NULL);
// ASSERT_LT(i, array_size);
// ASSERT_GT(records.size(), 0) << "There is no record left.";
#define EXPECT_EQ(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::EqHelper::Compare, val1, val2)
#define EXPECT_NE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
#define EXPECT_LE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
#define EXPECT_LT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
#define EXPECT_GE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
#define EXPECT_GT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
#define GTEST_ASSERT_EQ(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::EqHelper::Compare, val1, val2)
#define GTEST_ASSERT_NE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
#define GTEST_ASSERT_LE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
#define GTEST_ASSERT_LT(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
#define GTEST_ASSERT_GE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
#define GTEST_ASSERT_GT(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
// Define macro GTEST_DONT_DEFINE_ASSERT_XY to 1 to omit the definition of
// ASSERT_XY(), which clashes with some users' own code.
#if !GTEST_DONT_DEFINE_ASSERT_EQ
# define ASSERT_EQ(val1, val2) GTEST_ASSERT_EQ(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_NE
# define ASSERT_NE(val1, val2) GTEST_ASSERT_NE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_LE
# define ASSERT_LE(val1, val2) GTEST_ASSERT_LE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_LT
# define ASSERT_LT(val1, val2) GTEST_ASSERT_LT(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_GE
# define ASSERT_GE(val1, val2) GTEST_ASSERT_GE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_GT
# define ASSERT_GT(val1, val2) GTEST_ASSERT_GT(val1, val2)
#endif
// C-string Comparisons. All tests treat NULL and any non-NULL string
// as different. Two NULLs are equal.
//
// * {ASSERT|EXPECT}_STREQ(s1, s2): Tests that s1 == s2
// * {ASSERT|EXPECT}_STRNE(s1, s2): Tests that s1 != s2
// * {ASSERT|EXPECT}_STRCASEEQ(s1, s2): Tests that s1 == s2, ignoring case
// * {ASSERT|EXPECT}_STRCASENE(s1, s2): Tests that s1 != s2, ignoring case
//
// For wide or narrow string objects, you can use the
// {ASSERT|EXPECT}_??() macros.
//
// Don't depend on the order in which the arguments are evaluated,
// which is undefined.
//
// These macros evaluate their arguments exactly once.
#define EXPECT_STREQ(s1, s2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
#define EXPECT_STRNE(s1, s2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
#define EXPECT_STRCASEEQ(s1, s2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
#define EXPECT_STRCASENE(s1, s2)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
#define ASSERT_STREQ(s1, s2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
#define ASSERT_STRNE(s1, s2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
#define ASSERT_STRCASEEQ(s1, s2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
#define ASSERT_STRCASENE(s1, s2)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
// Macros for comparing floating-point numbers.
//
// * {ASSERT|EXPECT}_FLOAT_EQ(val1, val2):
// Tests that two float values are almost equal.
// * {ASSERT|EXPECT}_DOUBLE_EQ(val1, val2):
// Tests that two double values are almost equal.
// * {ASSERT|EXPECT}_NEAR(v1, v2, abs_error):
// Tests that v1 and v2 are within the given distance to each other.
//
// Google Test uses ULP-based comparison to automatically pick a default
// error bound that is appropriate for the operands. See the
// FloatingPoint template class in gtest-internal.h if you are
// interested in the implementation details.
#define EXPECT_FLOAT_EQ(val1, val2)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
val1, val2)
#define EXPECT_DOUBLE_EQ(val1, val2)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
val1, val2)
#define ASSERT_FLOAT_EQ(val1, val2)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
val1, val2)
#define ASSERT_DOUBLE_EQ(val1, val2)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
val1, val2)
#define EXPECT_NEAR(val1, val2, abs_error)\
EXPECT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
val1, val2, abs_error)
#define ASSERT_NEAR(val1, val2, abs_error)\
ASSERT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
val1, val2, abs_error)
// These predicate format functions work on floating-point values, and
// can be used in {ASSERT|EXPECT}_PRED_FORMAT2*(), e.g.
//
// EXPECT_PRED_FORMAT2(testing::DoubleLE, Foo(), 5.0);
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
GTEST_API_ AssertionResult FloatLE(const char* expr1, const char* expr2,
float val1, float val2);
GTEST_API_ AssertionResult DoubleLE(const char* expr1, const char* expr2,
double val1, double val2);
#if GTEST_OS_WINDOWS
// Macros that test for HRESULT failure and success, these are only useful
// on Windows, and rely on Windows SDK macros and APIs to compile.
//
// * {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}(expr)
//
// When expr unexpectedly fails or succeeds, Google Test prints the
// expected result and the actual result with both a human-readable
// string representation of the error, if available, as well as the
// hex result code.
# define EXPECT_HRESULT_SUCCEEDED(expr) \
EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
# define ASSERT_HRESULT_SUCCEEDED(expr) \
ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
# define EXPECT_HRESULT_FAILED(expr) \
EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
# define ASSERT_HRESULT_FAILED(expr) \
ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
#endif // GTEST_OS_WINDOWS
// Macros that execute statement and check that it doesn't generate new fatal
// failures in the current thread.
//
// * {ASSERT|EXPECT}_NO_FATAL_FAILURE(statement);
//
// Examples:
//
// EXPECT_NO_FATAL_FAILURE(Process());
// ASSERT_NO_FATAL_FAILURE(Process()) << "Process() failed";
//
#define ASSERT_NO_FATAL_FAILURE(statement) \
GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_FATAL_FAILURE_)
#define EXPECT_NO_FATAL_FAILURE(statement) \
GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_NONFATAL_FAILURE_)
// Causes a trace (including the given source file path and line number,
// and the given message) to be included in every test failure message generated
// by code in the scope of the lifetime of an instance of this class. The effect
// is undone with the destruction of the instance.
//
// The message argument can be anything streamable to std::ostream.
//
// Example:
// testing::ScopedTrace trace("file.cc", 123, "message");
//
class GTEST_API_ ScopedTrace {
public:
// The c'tor pushes the given source file location and message onto
// a trace stack maintained by Google Test.
// Template version. Uses Message() to convert the values into strings.
// Slow, but flexible.
template <typename T>
ScopedTrace(const char* file, int line, const T& message) {
PushTrace(file, line, (Message() << message).GetString());
}
// Optimize for some known types.
ScopedTrace(const char* file, int line, const char* message) {
PushTrace(file, line, message ? message : "(null)");
}
ScopedTrace(const char* file, int line, const std::string& message) {
PushTrace(file, line, message);
}
// The d'tor pops the info pushed by the c'tor.
//
// Note that the d'tor is not virtual in order to be efficient.
// Don't inherit from ScopedTrace!
~ScopedTrace();
private:
void PushTrace(const char* file, int line, std::string message);
GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);
} GTEST_ATTRIBUTE_UNUSED_; // A ScopedTrace object does its job in its
// c'tor and d'tor. Therefore it doesn't
// need to be used otherwise.
// Causes a trace (including the source file path, the current line
// number, and the given message) to be included in every test failure
// message generated by code in the current scope. The effect is
// undone when the control leaves the current scope.
//
// The message argument can be anything streamable to std::ostream.
//
// In the implementation, we include the current line number as part
// of the dummy variable name, thus allowing multiple SCOPED_TRACE()s
// to appear in the same block - as long as they are on different
// lines.
//
// Assuming that each thread maintains its own stack of traces.
// Therefore, a SCOPED_TRACE() would (correctly) only affect the
// assertions in its own thread.
#define SCOPED_TRACE(message) \
::testing::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
__FILE__, __LINE__, (message))
// Compile-time assertion for type equality.
// StaticAssertTypeEq<type1, type2>() compiles if and only if type1 and type2
// are the same type. The value it returns is not interesting.
//
// Instead of making StaticAssertTypeEq a class template, we make it a
// function template that invokes a helper class template. This
// prevents a user from misusing StaticAssertTypeEq<T1, T2> by
// defining objects of that type.
//
// CAVEAT:
//
// When used inside a method of a class template,
// StaticAssertTypeEq<T1, T2>() is effective ONLY IF the method is
// instantiated. For example, given:
//
// template <typename T> class Foo {
// public:
// void Bar() { testing::StaticAssertTypeEq<int, T>(); }
// };
//
// the code:
//
// void Test1() { Foo<bool> foo; }
//
// will NOT generate a compiler error, as Foo<bool>::Bar() is never
// actually instantiated. Instead, you need:
//
// void Test2() { Foo<bool> foo; foo.Bar(); }
//
// to cause a compiler error.
template <typename T1, typename T2>
constexpr bool StaticAssertTypeEq() noexcept {
static_assert(std::is_same<T1, T2>::value, "T1 and T2 are not the same type");
return true;
}
// Defines a test.
//
// The first parameter is the name of the test suite, and the second
// parameter is the name of the test within the test suite.
//
// The convention is to end the test suite name with "Test". For
// example, a test suite for the Foo class can be named FooTest.
//
// Test code should appear between braces after an invocation of
// this macro. Example:
//
// TEST(FooTest, InitializesCorrectly) {
// Foo foo;
// EXPECT_TRUE(foo.StatusIsOK());
// }
// Note that we call GetTestTypeId() instead of GetTypeId<
// ::testing::Test>() here to get the type ID of testing::Test. This
// is to work around a suspected linker bug when using Google Test as
// a framework on Mac OS X. The bug causes GetTypeId<
// ::testing::Test>() to return different values depending on whether
// the call is from the Google Test framework itself or from user test
// code. GetTestTypeId() is guaranteed to always return the same
// value, as it always calls GetTypeId<>() from the Google Test
// framework.
#define GTEST_TEST(test_suite_name, test_name) \
GTEST_TEST_(test_suite_name, test_name, ::testing::Test, \
::testing::internal::GetTestTypeId())
// Define this macro to 1 to omit the definition of TEST(), which
// is a generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_TEST
#define TEST(test_suite_name, test_name) GTEST_TEST(test_suite_name, test_name)
#endif
// Defines a test that uses a test fixture.
//
// The first parameter is the name of the test fixture class, which
// also doubles as the test suite name. The second parameter is the
// name of the test within the test suite.
//
// A test fixture class must be declared earlier. The user should put
// the test code between braces after using this macro. Example:
//
// class FooTest : public testing::Test {
// protected:
// void SetUp() override { b_.AddElement(3); }
//
// Foo a_;
// Foo b_;
// };
//
// TEST_F(FooTest, InitializesCorrectly) {
// EXPECT_TRUE(a_.StatusIsOK());
// }
//
// TEST_F(FooTest, ReturnsElementCountCorrectly) {
// EXPECT_EQ(a_.size(), 0);
// EXPECT_EQ(b_.size(), 1);
// }
//
// GOOGLETEST_CM0011 DO NOT DELETE
#if !GTEST_DONT_DEFINE_TEST
#define TEST_F(test_fixture, test_name)\
GTEST_TEST_(test_fixture, test_name, test_fixture, \
::testing::internal::GetTypeId<test_fixture>())
#endif // !GTEST_DONT_DEFINE_TEST
// Returns a path to temporary directory.
// Tries to determine an appropriate directory for the platform.
GTEST_API_ std::string TempDir();
#ifdef _MSC_VER
# pragma warning(pop)
#endif
// Dynamically registers a test with the framework.
//
// This is an advanced API only to be used when the `TEST` macros are
// insufficient. The macros should be preferred when possible, as they avoid
// most of the complexity of calling this function.
//
// The `factory` argument is a factory callable (move-constructible) object or
// function pointer that creates a new instance of the Test object. It
// handles ownership to the caller. The signature of the callable is
// `Fixture*()`, where `Fixture` is the test fixture class for the test. All
// tests registered with the same `test_suite_name` must return the same
// fixture type. This is checked at runtime.
//
// The framework will infer the fixture class from the factory and will call
// the `SetUpTestSuite` and `TearDownTestSuite` for it.
//
// Must be called before `RUN_ALL_TESTS()` is invoked, otherwise behavior is
// undefined.
//
// Use case example:
//
// class MyFixture : public ::testing::Test {
// public:
// // All of these optional, just like in regular macro usage.
// static void SetUpTestSuite() { ... }
// static void TearDownTestSuite() { ... }
// void SetUp() override { ... }
// void TearDown() override { ... }
// };
//
// class MyTest : public MyFixture {
// public:
// explicit MyTest(int data) : data_(data) {}
// void TestBody() override { ... }
//
// private:
// int data_;
// };
//
// void RegisterMyTests(const std::vector<int>& values) {
// for (int v : values) {
// ::testing::RegisterTest(
// "MyFixture", ("Test" + std::to_string(v)).c_str(), nullptr,
// std::to_string(v).c_str(),
// __FILE__, __LINE__,
// // Important to use the fixture type as the return type here.
// [=]() -> MyFixture* { return new MyTest(v); });
// }
// }
// ...
// int main(int argc, char** argv) {
// std::vector<int> values_to_test = LoadValuesFromConfig();
// RegisterMyTests(values_to_test);
// ...
// return RUN_ALL_TESTS();
// }
//
template <int&... ExplicitParameterBarrier, typename Factory>
TestInfo* RegisterTest(const char* test_suite_name, const char* test_name,
const char* type_param, const char* value_param,
const char* file, int line, Factory factory) {
using TestT = typename std::remove_pointer<decltype(factory())>::type;
class FactoryImpl : public internal::TestFactoryBase {
public:
explicit FactoryImpl(Factory f) : factory_(std::move(f)) {}
Test* CreateTest() override { return factory_(); }
private:
Factory factory_;
};
return internal::MakeAndRegisterTestInfo(
test_suite_name, test_name, type_param, value_param,
internal::CodeLocation(file, line), internal::GetTypeId<TestT>(),
internal::SuiteApiResolver<TestT>::GetSetUpCaseOrSuite(file, line),
internal::SuiteApiResolver<TestT>::GetTearDownCaseOrSuite(file, line),
new FactoryImpl{std::move(factory)});
}
} // namespace testing
// Use this function in main() to run all tests. It returns 0 if all
// tests are successful, or 1 otherwise.
//
// RUN_ALL_TESTS() should be invoked after the command line has been
// parsed by InitGoogleTest().
//
// This function was formerly a macro; thus, it is in the global
// namespace and has an all-caps name.
int RUN_ALL_TESTS() GTEST_MUST_USE_RESULT_;
inline int RUN_ALL_TESTS() {
return ::testing::UnitTest::GetInstance()->Run();
}
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_H_
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