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https://github.com/morgan9e/systemd
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fa34123c35
To make sure everything still compiles, we add a preliminary include of forward.h to tests.h to make sure it is included in every test source file. We'll clean up the tests.h includes in a later commit. We also add a <errno.h> include to errno-list.h to keep test-errno-list.c compiling. It'll be removed again when we clean up includes in src/basic. Split out of #37344.
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/***
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Copyright © 2016 Canonical Ltd.
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***/
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#include <unistd.h>
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#include "clock-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "log.h"
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#include "tests.h"
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#include "tmpfile-util.h"
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TEST(clock_is_localtime) {
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_cleanup_(unlink_tempfilep) char adjtime[] = "/tmp/test-adjtime.XXXXXX";
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_cleanup_fclose_ FILE* f = NULL;
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static const struct scenario {
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const char* contents;
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int expected_result;
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} scenarios[] = {
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/* adjtime configures UTC */
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{"0.0 0 0\n0\nUTC\n", 0},
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/* adjtime configures local time */
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{"0.0 0 0\n0\nLOCAL\n", 1},
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/* no final EOL */
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{"0.0 0 0\n0\nUTC", 0},
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{"0.0 0 0\n0\nLOCAL", 1},
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/* empty value -> defaults to UTC */
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{"0.0 0 0\n0\n", 0},
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/* unknown value -> defaults to UTC */
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{"0.0 0 0\n0\nFOO\n", 0},
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/* no third line */
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{"0.0 0 0", 0},
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{"0.0 0 0\n", 0},
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{"0.0 0 0\n0", 0},
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};
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/* without an adjtime file we default to UTC */
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ASSERT_FALSE(clock_is_localtime("/nonexisting/adjtime"));
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ASSERT_OK(fmkostemp_safe(adjtime, "w", &f));
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log_info("adjtime test file: %s", adjtime);
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for (size_t i = 0; i < ELEMENTSOF(scenarios); ++i) {
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log_info("scenario #%zu:, expected result %i", i, scenarios[i].expected_result);
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log_info("%s", scenarios[i].contents);
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rewind(f);
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ASSERT_OK_ERRNO(ftruncate(fileno(f), 0));
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ASSERT_OK(write_string_stream(f, scenarios[i].contents, WRITE_STRING_FILE_AVOID_NEWLINE));
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ASSERT_TRUE(clock_is_localtime(adjtime) == scenarios[i].expected_result);
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}
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}
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/* Test with the real /etc/adjtime */
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TEST(clock_is_localtime_system) {
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int r;
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r = clock_is_localtime(NULL);
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if (access("/etc/adjtime", R_OK) == 0) {
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log_info("/etc/adjtime is readable, clock_is_localtime() == %i", r);
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/* if /etc/adjtime exists we expect some answer, no error or
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* crash */
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ASSERT_TRUE(IN_SET(r, 0, 1));
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} else
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/* default is UTC if there is no /etc/adjtime */
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ASSERT_TRUE(r == 0 || ERRNO_IS_PRIVILEGE(r));
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}
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DEFINE_TEST_MAIN(LOG_INFO);
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