Mercurial > gnulib
view tests/test-fopen.h @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children |
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/* Test of opening a file stream. Copyright (C) 2007-2019 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. */ /* Include <config.h> and a form of <stdio.h> first. */ #include <errno.h> #include <unistd.h> #include "macros.h" /* Test fopen. Assumes BASE is defined. */ static int test_fopen (void) { FILE *f; /* Remove anything from prior partial run. */ unlink (BASE "file"); /* Read requires existing file. */ errno = 0; ASSERT (fopen (BASE "file", "r") == NULL); ASSERT (errno == ENOENT); /* Write can create a file. */ f = fopen (BASE "file", "w"); ASSERT (f); ASSERT (fclose (f) == 0); /* Trailing slash is invalid on non-directory. */ errno = 0; ASSERT (fopen (BASE "file/", "r") == NULL); ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL); /* Cannot create a directory. */ errno = 0; ASSERT (fopen ("nonexist.ent/", "w") == NULL); ASSERT (errno == ENOTDIR || errno == EISDIR || errno == ENOENT || errno == EINVAL); /* Directories cannot be opened for writing. */ errno = 0; ASSERT (fopen (".", "w") == NULL); ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES); /* /dev/null must exist, and be writable. */ f = fopen ("/dev/null", "r"); ASSERT (f); ASSERT (fclose (f) == 0); f = fopen ("/dev/null", "w"); ASSERT (f); ASSERT (fclose (f) == 0); /* Cleanup. */ ASSERT (unlink (BASE "file") == 0); return 0; }