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author | Bruno Haible <bruno@clisp.org> | 2023-03-23 13:53:44 +0100 |
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committer | Bruno Haible <bruno@clisp.org> | 2023-03-24 02:46:06 +0100 |
commit | 1bd54c4369bfaef729b85505e70b62a115a3de69 (patch) | |
tree | c4f7f86fd1681a9217597fb3f209e4a3afe6c672 /tests | |
parent | 0645e170eadd356967b0690ba8208d85e8042edd (diff) | |
download | gnulib-1bd54c4369bfaef729b85505e70b62a115a3de69.tar.gz |
vasnprintf-gnu: Add tests.
* tests/test-vasnprintf-gnu.c: New file, based on
tests/test-vasnprintf-posix.c.
* modules/vasnprintf-gnu-tests: New file.
Diffstat (limited to 'tests')
-rw-r--r-- | tests/test-vasnprintf-gnu.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/tests/test-vasnprintf-gnu.c b/tests/test-vasnprintf-gnu.c new file mode 100644 index 0000000000..cb75fa6135 --- /dev/null +++ b/tests/test-vasnprintf-gnu.c @@ -0,0 +1,275 @@ +/* Test of POSIX and GNU compatible vasnprintf() and asnprintf() 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 "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 *, ...)) +{ + /* Test the support of the 'B' conversion specifier for binary output of + integers. */ + + { /* Zero. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%B %d", 0, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "0 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* A positive number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* A large positive number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%B %d", 0xFFFFFFFEU, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "11111111111111111111111111111110 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Width. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, " 11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Width given as argument. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%*B %d", 20, 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, " 11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Negative width given as argument (cf. FLAG_LEFT below). */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%*B %d", -20, 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%.20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Zero precision and a positive number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%.0B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Zero precision and a zero number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%.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 (strcmp (result, " 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Width and precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%25.20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, " 00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* Padding and precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%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 (strcmp (result, " 00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_LEFT. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%-20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with zero. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%#B %d", 0, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "0 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%#B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "0B11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number and width. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%#20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, " 0B11000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number and padding. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%0#20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "0B000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number and precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%0#.20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, "0B00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number and width and precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%#25.20B %d", 12345, 33, 44, 55); + ASSERT (result != NULL); + ASSERT (strcmp (result, " 0B00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a positive number and padding and precision. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%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 (strcmp (result, " 0B00000011000000111001 33") == 0); + ASSERT (length == strlen (result)); + free (result); + } + + { /* FLAG_ALT with a zero precision and a zero number. */ + size_t length; + char *result = + my_asnprintf (NULL, &length, "%#.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 (strcmp (result, " 33") == 0); + ASSERT (length == strlen (result)); + 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; +} |