67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* Test the putenv function.
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Copyright (C) 2024-2025 Free Software Foundation, Inc.
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This file 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
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by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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This file 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 Collin Funk <collin.funk1@gmail.com>, 2024. */
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#include <config.h>
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/* Specification. */
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#include <stdlib.h>
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#include "signature.h"
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SIGNATURE_CHECK (putenv, int, (char *));
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#include <string.h>
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#include "macros.h"
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int
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main (void)
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{
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char *ptr;
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/* Verify the environment is clean. */
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unsetenv ("TEST_VAR");
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ASSERT (getenv ("TEST_VAR") == NULL);
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/* Use static on variables passed to the environment to pacify
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-Wanalyzer-putenv-of-auto-var. */
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/* Verify adding an environment variable. */
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{
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static char var[] = "TEST_VAR=abc";
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ASSERT (putenv (var) == 0);
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ptr = getenv ("TEST_VAR");
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ASSERT (ptr != NULL);
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ASSERT (STREQ (ptr, "abc"));
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}
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/* Verify removing an environment variable. */
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{
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static char var[] = "TEST_VAR";
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ASSERT (putenv (var) == 0);
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ASSERT (getenv ("TEST_VAR") == NULL);
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}
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/* Verify the behavior when removing a variable not in the environment. */
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{
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static char var[] = "TEST_VAR";
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ASSERT (putenv (var) == 0);
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ASSERT (getenv ("TEST_VAR") == NULL);
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}
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return test_exit_status;
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}
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