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69297aa373
Done through sed -e 's/strcmp \([(][^()]*[)]\) != 0/!streq \1/' * tests/**/*.[hc]: Use !streq instead of strcmp ... != 0. * modules/*-tests (Dependencies): Add streq.
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* Test of creating a temporary file.
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Copyright (C) 2022-2026 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2022. */
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#include <config.h>
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#include "tempname.h"
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#include <string.h>
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#include <unistd.h>
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#include "macros.h"
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int
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main ()
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{
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/* Verify that two consecutive calls to gen_tempname return two different
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file names, with a high probability. */
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const char *templ18 = "gl-temp-XXXXXX.xyz";
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char filename1[18 + 1];
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char filename2[18 + 1];
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/* Case 1: The first file still exists while gen_tempname is called a second
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time. */
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{
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strcpy (filename1, templ18);
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int fd1 = gen_tempname (filename1, strlen (".xyz"), 0, GT_FILE);
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ASSERT (fd1 >= 0);
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strcpy (filename2, templ18);
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int fd2 = gen_tempname (filename2, strlen (".xyz"), 0, GT_FILE);
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ASSERT (fd2 >= 0);
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/* gen_tempname arranges (via O_EXCL) to not return the name of an existing
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file. */
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ASSERT (!streq (filename1, filename2));
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/* Clean up. */
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close (fd1);
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close (fd2);
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unlink (filename1);
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unlink (filename2);
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}
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/* Case 2: The first file is deleted before gen_tempname is called a second
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time. */
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{
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strcpy (filename1, templ18);
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int fd1 = gen_tempname (filename1, strlen (".xyz"), 0, GT_FILE);
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ASSERT (fd1 >= 0);
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/* Clean up. */
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close (fd1);
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unlink (filename1);
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strcpy (filename2, templ18);
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int fd2 = gen_tempname (filename2, strlen (".xyz"), 0, GT_FILE);
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ASSERT (fd2 >= 0);
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/* With 6 'X' and a good pseudo-random number generator behind the scenes,
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the probability of getting the same file name twice in a row should be
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1/62^6 < 1/10^10.
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But on 64-bit native Windows, this probability is ca. 0.1% to 0.3%. */
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ASSERT (!streq (filename1, filename2));
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/* Clean up. */
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close (fd2);
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unlink (filename2);
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}
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return test_exit_status;
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}
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