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Diffstat (limited to 'gnulib-tests/test-xvasprintf.c')
-rw-r--r-- | gnulib-tests/test-xvasprintf.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/gnulib-tests/test-xvasprintf.c b/gnulib-tests/test-xvasprintf.c new file mode 100644 index 0000000..39bd264 --- /dev/null +++ b/gnulib-tests/test-xvasprintf.c @@ -0,0 +1,135 @@ +/* Test of xvasprintf() and xasprintf() functions. + Copyright (C) 2007-2020 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. */ + +/* Tell GCC not to warn about the specific edge cases tested here. */ +#if (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) || 4 < __GNUC__ +# pragma GCC diagnostic ignored "-Wformat-zero-length" +# pragma GCC diagnostic ignored "-Wformat-nonliteral" +# pragma GCC diagnostic ignored "-Wformat-security" +#endif + +#include <config.h> + +#include "xvasprintf.h" + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> + +#include "macros.h" + +static char * +my_xasprintf (const char *format, ...) +{ + va_list args; + char *ret; + + va_start (args, format); + ret = xvasprintf (format, args); + va_end (args); + return ret; +} + +static void +test_xvasprintf (void) +{ + int repeat; + char *result; + + for (repeat = 0; repeat <= 8; repeat++) + { + result = my_xasprintf ("%d", 12345); + ASSERT (result != NULL); + ASSERT (strcmp (result, "12345") == 0); + free (result); + } + + { + /* Silence gcc warning about zero-length format string. */ + const char *empty = ""; + result = my_xasprintf (empty); + ASSERT (result != NULL); + ASSERT (strcmp (result, "") == 0); + free (result); + } + + result = my_xasprintf ("%s", "foo"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foo") == 0); + free (result); + + result = my_xasprintf ("%s%s", "foo", "bar"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foobar") == 0); + free (result); + + result = my_xasprintf ("%s%sbaz", "foo", "bar"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foobarbaz") == 0); + free (result); +} + +static void +test_xasprintf (void) +{ + int repeat; + char *result; + + for (repeat = 0; repeat <= 8; repeat++) + { + result = xasprintf ("%d", 12345); + ASSERT (result != NULL); + ASSERT (strcmp (result, "12345") == 0); + free (result); + } + + { + /* Silence gcc warning about zero-length format string, + and about "format not a string literal and no format" + (whatever that means) . */ + const char *empty = ""; + result = xasprintf (empty, empty); + ASSERT (result != NULL); + ASSERT (strcmp (result, "") == 0); + free (result); + } + + result = xasprintf ("%s", "foo"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foo") == 0); + free (result); + + result = xasprintf ("%s%s", "foo", "bar"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foobar") == 0); + free (result); + + result = my_xasprintf ("%s%sbaz", "foo", "bar"); + ASSERT (result != NULL); + ASSERT (strcmp (result, "foobarbaz") == 0); + free (result); +} + +int +main (int argc _GL_UNUSED, char *argv[]) +{ + test_xvasprintf (); + test_xasprintf (); + + return 0; +} |