Mercurial > hg > octave-lyh > gnulib-hg
changeset 8690:3283ac3682b6
Tests for module 'fwritable'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 14 Apr 2007 00:15:48 +0000 |
parents | 1476896d10ae |
children | fe35a667f2c8 |
files | ChangeLog modules/fwritable-tests tests/test-fwritable.c |
diffstat | 3 files changed, 129 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2007-04-13 Bruno Haible <bruno@clisp.org> + * modules/fwritable-tests: New file. + * tests/test-fwritable.c: New file. + * modules/fwritable: New file. * lib/fwritable.h: New file. * lib/fwritable.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/fwritable-tests @@ -0,0 +1,11 @@ +Files: +tests/test-fwritable.c + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-fwritable +check_PROGRAMS += test-fwritable +
new file mode 100644 --- /dev/null +++ b/tests/test-fwritable.c @@ -0,0 +1,115 @@ +/* Test of fwritable() 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 2, 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. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2007. */ + +#include <config.h> + +#include "fwritable.h" + +#include <stdlib.h> + +#define ASSERT(expr) if (!(expr)) abort (); + +#define TESTFILE "t-fwritable.tmp" + +int +main () +{ + FILE *fp; + + /* Create a file with some contents. */ + fp = fopen (TESTFILE, "w"); + if (fp == NULL) + goto skip; + ASSERT (fwritable (fp)); + if (fwrite ("foobarsh", 1, 8, fp) < 8) + goto skip; + ASSERT (fwritable (fp)); + if (fclose (fp)) + goto skip; + + /* Open it in read-only mode. */ + fp = fopen (TESTFILE, "r"); + if (fp == NULL) + goto skip; + ASSERT (!fwritable (fp)); + if (fgetc (fp) != 'f') + goto skip; + ASSERT (!fwritable (fp)); + if (fseek (fp, 2, SEEK_CUR)) + goto skip; + ASSERT (!fwritable (fp)); + if (fgetc (fp) != 'b') + goto skip; + ASSERT (!fwritable (fp)); + fflush (fp); + ASSERT (!fwritable (fp)); + if (fgetc (fp) != 'a') + goto skip; + ASSERT (!fwritable (fp)); + if (fseek (fp, 0, SEEK_END)) + goto skip; + ASSERT (!fwritable (fp)); + if (fclose (fp)) + goto skip; + + /* Open it in read-write mode. */ + fp = fopen (TESTFILE, "r+"); + if (fp == NULL) + goto skip; + ASSERT (fwritable (fp)); + if (fgetc (fp) != 'f') + goto skip; + ASSERT (fwritable (fp)); + if (fseek (fp, 2, SEEK_CUR)) + goto skip; + ASSERT (fwritable (fp)); + if (fgetc (fp) != 'b') + goto skip; + ASSERT (fwritable (fp)); + fflush (fp); + ASSERT (fwritable (fp)); + if (fgetc (fp) != 'a') + goto skip; + ASSERT (fwritable (fp)); + if (fputc ('z', fp) != 'z') + goto skip; + ASSERT (fwritable (fp)); + if (fseek (fp, 0, SEEK_END)) + goto skip; + ASSERT (fwritable (fp)); + if (fclose (fp)) + goto skip; + + /* Open it in append mode. */ + fp = fopen (TESTFILE, "a"); + if (fp == NULL) + goto skip; + ASSERT (fwritable (fp)); + if (fwrite ("bla", 1, 3, fp) < 3) + goto skip; + ASSERT (fwritable (fp)); + if (fclose (fp)) + goto skip; + + return 0; + + skip: + fprintf (stderr, "Skipping test: file operations failed.\n"); + return 77; +}