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Diffstat (limited to 'tests/test-vasnprintf.c')
-rw-r--r-- | tests/test-vasnprintf.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/tests/test-vasnprintf.c b/tests/test-vasnprintf.c new file mode 100644 index 0000000..4cce0a9 --- /dev/null +++ b/tests/test-vasnprintf.c @@ -0,0 +1,94 @@ +/* Test of vasnprintf() and asnprintf() functions. + Copyright (C) 2007-2013 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 "vasnprintf.h" + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> + +#include "macros.h" + +static void +test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...)) +{ + char buf[8]; + int size; + + for (size = 0; size <= 8; size++) + { + size_t length = size; + char *result = my_asnprintf (NULL, &length, "%d", 12345); + ASSERT (result != NULL); + ASSERT (strcmp (result, "12345") == 0); + ASSERT (length == 5); + free (result); + } + + for (size = 0; size <= 8; size++) + { + size_t length; + char *result; + + memcpy (buf, "DEADBEEF", 8); + length = size; + result = my_asnprintf (buf, &length, "%d", 12345); + ASSERT (result != NULL); + ASSERT (strcmp (result, "12345") == 0); + ASSERT (length == 5); + if (size < 6) + ASSERT (result != buf); + ASSERT (memcmp (buf + size, &"DEADBEEF"[size], 8 - size) == 0); + if (result != buf) + free (result); + } +} + +static char * +my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) +{ + va_list args; + char *ret; + + va_start (args, format); + ret = vasnprintf (resultbuf, lengthp, format, args); + va_end (args); + return ret; +} + +static void +test_vasnprintf () +{ + test_function (my_asnprintf); +} + +static void +test_asnprintf () +{ + test_function (asnprintf); +} + +int +main (int argc, char *argv[]) +{ + test_vasnprintf (); + test_asnprintf (); + return 0; +} |