Mercurial > hg > octave-nkf > gnulib-hg
changeset 15773:46baff75943d
Tests for function fwrite().
* modules/fwrite-tests: New file.
* tests/test-fwrite.c: New file.
* modules/stdio-tests (Depends-on): Add fwrite-tests.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 24 Sep 2011 17:08:38 +0200 |
parents | 9af89e5674f6 |
children | b5685d79081c |
files | ChangeLog modules/fwrite-tests modules/stdio-tests tests/test-fwrite.c |
diffstat | 4 files changed, 102 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2011-09-24 Bruno Haible <bruno@clisp.org> + Tests for function fwrite(). + * modules/fwrite-tests: New file. + * tests/test-fwrite.c: New file. + * modules/stdio-tests (Depends-on): Add fwrite-tests. + Tests for function fread(). * modules/fread-tests: New file. * tests/test-fread.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/fwrite-tests @@ -0,0 +1,12 @@ +Files: +tests/test-fwrite.c +tests/signature.h +tests/macros.h + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-fwrite +check_PROGRAMS += test-fwrite
--- a/modules/stdio-tests +++ b/modules/stdio-tests @@ -7,6 +7,7 @@ fgetc-tests fputc-tests fread-tests +fwrite-tests configure.ac:
new file mode 100644 --- /dev/null +++ b/tests/test-fwrite.c @@ -0,0 +1,84 @@ +/* Test of fwrite() function. + Copyright (C) 2011 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, 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include <config.h> + +#include <stdio.h> + +#include "signature.h" +SIGNATURE_CHECK (fwrite, size_t, (const void *, size_t, size_t, FILE *)); + +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> + +#include "macros.h" + +int +main (int argc, char **argv) +{ + const char *filename = "test-fwrite.txt"; + + /* Test that fwrite() on an unbuffered stream sets errno if someone else + closes the stream fd behind the back of stdio. */ + { + FILE *fp = fopen (filename, "w"); + char buf[5] = "world"; + ASSERT (fp != NULL); + setvbuf (fp, NULL, _IONBF, 0); + ASSERT (close (fileno (fp)) == 0); + errno = 0; + ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0); + ASSERT (errno == EBADF); + ASSERT (ferror (fp)); + fclose (fp); + } + + /* Test that fwrite() on an unbuffered stream sets errno if the stream + was constructed with an invalid file descriptor. */ + { + FILE *fp = fdopen (-1, "w"); + if (fp != NULL) + { + char buf[5] = "world"; + setvbuf (fp, NULL, _IONBF, 0); + errno = 0; + ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0); + ASSERT (errno == EBADF); + ASSERT (ferror (fp)); + fclose (fp); + } + } + { + FILE *fp = fdopen (99, "w"); + if (fp != NULL) + { + char buf[5] = "world"; + setvbuf (fp, NULL, _IONBF, 0); + errno = 0; + ASSERT (fwrite (buf, 1, sizeof (buf), fp) == 0); + ASSERT (errno == EBADF); + ASSERT (ferror (fp)); + fclose (fp); + } + } + + /* Clean up. */ + unlink (filename); + + return 0; +}