libvirt/gnulib/tests/test-snprintf.c

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Add gnulib-tool unit tests. * bootstrap: Re-add --with-tests, now that gnulib-tool arranges to use separate libraries for lib/ and tests/. * configure.in (AC_OUTPUT): Add gnulib/tests/Makefile.in. * Makefile.am (SUBDIRS): Add gnulib/tests. * gnulib/tests/Makefile.am: New file. * gnulib/lib/.cvsignore: Sort. * gnulib/lib/Makefile.am, gnulib/m4/getdelim.m4, gnulib/m4/getline.m4: * gnulib/m4/gnulib-cache.m4, gnulib/m4/gnulib-comp.m4: Regenerate. * gnulib/tests/test-alloca-opt.c: New file, from gnulib. * gnulib/tests/test-arpa_inet.c: Likewise. * gnulib/tests/test-fseeko.c: Likewise. * gnulib/tests/test-fseeko.sh: Likewise. * gnulib/tests/test-getaddrinfo.c: Likewise. * gnulib/tests/test-getdelim.c: Likewise. * gnulib/tests/test-getline.c: Likewise. * gnulib/tests/test-lseek.c: Likewise. * gnulib/tests/test-lseek.sh: Likewise. * gnulib/tests/test-netinet_in.c: Likewise. * gnulib/tests/test-snprintf.c: Likewise. * gnulib/tests/test-stdbool.c: Likewise. * gnulib/tests/test-stdint.c: Likewise. * gnulib/tests/test-stdio.c: Likewise. * gnulib/tests/test-stdlib.c: Likewise. * gnulib/tests/test-string.c: Likewise. * gnulib/tests/test-sys_select.c: Likewise. * gnulib/tests/test-sys_socket.c: Likewise. * gnulib/tests/test-sys_stat.c: Likewise. * gnulib/tests/test-sys_time.c: Likewise. * gnulib/tests/test-unistd.c: Likewise. * gnulib/tests/test-vasnprintf.c: Likewise. * gnulib/tests/test-vasprintf.c: Likewise. * gnulib/tests/test-wchar.c: Likewise. * gnulib/tests/dummy.c: Likewise. * gnulib/tests/intprops.h: Likewise. * gnulib/tests/verify.h: Likewise.
2007-12-10 18:26:56 +00:00
/* Test of snprintf() function.
Copyright (C) 2007 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 <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ASSERT(expr) \
do \
{ \
if (!(expr)) \
{ \
fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
abort (); \
} \
} \
while (0)
int
main (int argc, char *argv[])
{
char buf[8];
int size;
int retval;
for (size = 0; size <= 8; size++)
{
memcpy (buf, "DEADBEEF", 8);
retval = snprintf (buf, size, "%d", 12345);
if (size < 6)
{
#if CHECK_SNPRINTF_POSIX
ASSERT (retval < 0 || retval >= size);
#endif
if (size > 0)
{
ASSERT (memcmp (buf, "12345", size - 1) == 0);
ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
}
#if !CHECK_SNPRINTF_POSIX
if (size > 0)
#endif
ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
}
else
{
ASSERT (retval == 5);
ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
}
}
return 0;
}