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vsnprintf-gnu: Add tests.

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* tests/test-vsnprintf-gnu.c: New file, based on
tests/test-vsnprintf-posix.c.
* tests/test-snprintf-gnu.h: New file, based on
tests/test-vasnprintf-gnu.c.
* modules/vsnprintf-gnu-tests: New file, based on
modules/vsnprintf-posix-tests.
This commit is contained in:
Bruno Haible
2023-03-24 11:06:44 +01:00
parent 1d4cd9aec7
commit e396564a33
4 changed files with 244 additions and 0 deletions
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8
ChangeLog
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@@ -1,5 +1,13 @@
2023-03-24 Bruno Haible <bruno@clisp.org> 2023-03-24 Bruno Haible <bruno@clisp.org>
vsnprintf-gnu: Add tests.
* tests/test-vsnprintf-gnu.c: New file, based on
tests/test-vsnprintf-posix.c.
* tests/test-snprintf-gnu.h: New file, based on
tests/test-vasnprintf-gnu.c.
* modules/vsnprintf-gnu-tests: New file, based on
modules/vsnprintf-posix-tests.
vsnprintf-gnu: New module. vsnprintf-gnu: New module.
* m4/vsnprintf-posix.m4 (gl_FUNC_VSNPRINTF_IS_POSIX): New macro, * m4/vsnprintf-posix.m4 (gl_FUNC_VSNPRINTF_IS_POSIX): New macro,
extracted from gl_FUNC_VSNPRINTF_POSIX. extracted from gl_FUNC_VSNPRINTF_POSIX.

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modules/vsnprintf-gnu-tests Normal file
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Files:
tests/test-vsnprintf-gnu.c
tests/test-snprintf-gnu.h
tests/macros.h
Depends-on:
vsnprintf-posix-tests
configure.ac:
Makefile.am:
TESTS += test-vsnprintf-gnu
check_PROGRAMS += test-vsnprintf-gnu

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tests/test-snprintf-gnu.h Normal file
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/* Test of POSIX and GNU compatible vsnprintf() and snprintf() 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. */
static void
test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
{
char result[5000];
/* Test the support of the 'B' conversion specifier for binary output of
integers. */
{ /* Zero. */
int retval =
my_snprintf (result, sizeof (result), "%B %d", 0, 33, 44, 55);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* A positive number. */
int retval =
my_snprintf (result, sizeof (result), "%B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* A large positive number. */
int retval =
my_snprintf (result, sizeof (result), "%B %d", 0xFFFFFFFEU, 33, 44, 55);
ASSERT (strcmp (result, "11111111111111111111111111111110 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Width. */
int retval =
my_snprintf (result, sizeof (result), "%20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, " 11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Width given as argument. */
int retval =
my_snprintf (result, sizeof (result), "%*B %d", 20, 12345, 33, 44, 55);
ASSERT (strcmp (result, " 11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Negative width given as argument (cf. FLAG_LEFT below). */
int retval =
my_snprintf (result, sizeof (result), "%*B %d", -20, 12345, 33, 44, 55);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Precision. */
int retval =
my_snprintf (result, sizeof (result), "%.20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Zero precision and a positive number. */
int retval =
my_snprintf (result, sizeof (result), "%.0B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Zero precision and a zero number. */
int retval =
my_snprintf (result, sizeof (result), "%.0B %d", 0, 33, 44, 55);
/* ISO C and POSIX specify that "The result of converting a zero value
with a precision of zero is no characters." */
ASSERT (strcmp (result, " 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Width and precision. */
int retval =
my_snprintf (result, sizeof (result), "%25.20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* Padding and precision. */
int retval =
my_snprintf (result, sizeof (result), "%025.20B %d", 12345, 33, 44, 55);
/* 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 (strcmp (result, " 00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_LEFT. */
int retval =
my_snprintf (result, sizeof (result), "%-20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with zero. */
int retval =
my_snprintf (result, sizeof (result), "%#B %d", 0, 33, 44, 55);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number. */
int retval =
my_snprintf (result, sizeof (result), "%#B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "0B11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number and width. */
int retval =
my_snprintf (result, sizeof (result), "%#20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, " 0B11000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number and padding. */
int retval =
my_snprintf (result, sizeof (result), "%0#20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "0B000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number and precision. */
int retval =
my_snprintf (result, sizeof (result), "%0#.20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, "0B00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number and width and precision. */
int retval =
my_snprintf (result, sizeof (result), "%#25.20B %d", 12345, 33, 44, 55);
ASSERT (strcmp (result, " 0B00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a positive number and padding and precision. */
int retval =
my_snprintf (result, sizeof (result), "%0#25.20B %d", 12345, 33, 44, 55);
/* 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 (strcmp (result, " 0B00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
}
{ /* FLAG_ALT with a zero precision and a zero number. */
int retval =
my_snprintf (result, sizeof (result), "%#.0B %d", 0, 33, 44, 55);
/* 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 (strcmp (result, " 33") == 0);
ASSERT (retval == strlen (result));
}
}

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tests/test-vsnprintf-gnu.c Normal file
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/* Test of POSIX and GNU compatible vsnprintf() function.
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>, 2007. */
#include <config.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "macros.h"
#include "test-snprintf-gnu.h"
static int
my_snprintf (char *str, size_t size, const char *format, ...)
{
va_list args;
int ret;
va_start (args, format);
ret = vsnprintf (str, size, format, args);
va_end (args);
return ret;
}
int
main (int argc, char *argv[])
{
test_function (my_snprintf);
return 0;
}