vasnwprintf-gnu: Add tests.

* tests/test-vasnwprintf-gnu.c: New file, based on
tests/test-vasnwprintf-posix.c and tests/test-vasnprintf-gnu.c.
* modules/vasnwprintf-gnu-tests: New file, based on
modules/vasnwprintf-posix-tests.

ChangeLog

@@ -1,5 +1,11 @@
 2023-03-24  Bruno Haible  <bruno@clisp.org>
 
+	vasnwprintf-gnu: Add tests.
+	* tests/test-vasnwprintf-gnu.c: New file, based on
+	tests/test-vasnwprintf-posix.c and tests/test-vasnprintf-gnu.c.
+	* modules/vasnwprintf-gnu-tests: New file, based on
+	modules/vasnwprintf-posix-tests.
+
 	vasnwprintf-gnu: New module.
 	* m4/vasnwprintf-posix.m4 (gl_FUNC_VASNWPRINTF_IS_POSIX): New macro.
 	(gl_FUNC_VASNWPRINTF_POSIX): Require it. Invoke

modules/vasnwprintf-gnu-tests

@@ -0,0 +1,14 @@
+Files:
+tests/test-vasnwprintf-gnu.c
+tests/macros.h
+
+Depends-on:
+vasnwprintf-posix-tests
+wcscmp
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-vasnwprintf-gnu
+check_PROGRAMS += test-vasnwprintf-gnu
+test_vasnwprintf_gnu_LDADD = $(LDADD) $(MBRTOWC_LIB)

tests/test-vasnwprintf-gnu.c

@@ -0,0 +1,276 @@
+/* Test of POSIX and GNU compatible vasnwprintf() and asnwprintf() functions.
+   Copyright (C) 2007-2023 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2023.  */
+
+#include <config.h>
+
+#include "vasnwprintf.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include "macros.h"
+
+static void
+test_function (wchar_t * (*my_asnwprintf) (wchar_t *, size_t *, const wchar_t *, ...))
+{
+  /* Test the support of the 'b' conversion specifier for binary output of
+     integers.  */
+
+  { /* Zero.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%b %d", 0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"0 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* A large positive number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%b %d", 0xFFFFFFFEU, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"11111111111111111111111111111110 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"      11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Width given as argument.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%*b %d", 20, 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"      11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Negative width given as argument (cf. FLAG_LEFT below).  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%*b %d", -20, 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"11000000111001       33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Zero precision and a positive number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%.0b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Zero precision and a zero number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%.0b %d", 0, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* ISO C and POSIX specify that "The result of converting a zero value
+       with a precision of zero is no characters."  */
+    ASSERT (wcscmp (result, L" 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Width and precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%25.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"     00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* Padding and precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%025.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+       a width and a precision are both present.  But implementations do so.  */
+    ASSERT (wcscmp (result, L"     00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%-20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"11000000111001       33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with zero.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%#b %d", 0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"0 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%#b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"0b11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number and width.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%#20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"    0b11000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number and padding.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%0#20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"0b000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number and precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%0#.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"0b00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number and width and precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%#25.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (wcscmp (result, L"   0b00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a positive number and padding and precision.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%0#25.20b %d", 12345, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* Neither ISO C nor POSIX specify that the '0' flag is ignored when
+       a width and a precision are both present.  But implementations do so.  */
+    ASSERT (wcscmp (result, L"   0b00000011000000111001 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT with a zero precision and a zero number.  */
+    size_t length;
+    wchar_t *result =
+      my_asnwprintf (NULL, &length, L"%#.0b %d", 0, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* ISO C and POSIX specify that "The result of converting a zero value
+       with a precision of zero is no characters.", and the prefix is added
+       only for non-zero values.  */
+    ASSERT (wcscmp (result, L" 33") == 0);
+    ASSERT (length == wcslen (result));
+    free (result);
+  }
+}
+
+static wchar_t *
+my_asnwprintf (wchar_t *resultbuf, size_t *lengthp, const wchar_t *format, ...)
+{
+  va_list args;
+  wchar_t *ret;
+
+  va_start (args, format);
+  ret = vasnwprintf (resultbuf, lengthp, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasnwprintf ()
+{
+  test_function (my_asnwprintf);
+}
+
+static void
+test_asnwprintf ()
+{
+  test_function (asnwprintf);
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasnwprintf ();
+  test_asnwprintf ();
+  return 0;
+}