diff options
Diffstat (limited to 'gnulib/tests/test-fwritable.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-fwritable.c | 117 |
2 files changed, 117 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-fwritable.c b/gnulib/tests/test-fwritable.c new file mode 100644 index 0000000..a859486 --- /dev/null +++ b/gnulib/tests/test-fwritable.c @@ -0,0 +1,117 @@ +/* Test of fwritable() function. + Copyright (C) 2007-2011 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 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> + +/* None of the files accessed by this test are large, so disable the + fseek link warning if we are not using the gnulib fseek module. */ +#define _GL_NO_LARGE_FILES +#include "fwritable.h" + +#include <stdio.h> + +#include "macros.h" + +#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; +} |