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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
commit | 19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch) | |
tree | d59b9989ce55ed23693e80974d94c856f1c2c8b1 /src/test/test-clock.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/test-clock.c')
-rw-r--r-- | src/test/test-clock.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/test/test-clock.c b/src/test/test-clock.c new file mode 100644 index 0000000..018e679 --- /dev/null +++ b/src/test/test-clock.c @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/*** + Copyright © 2016 Canonical Ltd. +***/ + +#include <unistd.h> +#include <fcntl.h> + +#include "clock-util.h" +#include "fd-util.h" +#include "fileio.h" +#include "fs-util.h" +#include "log.h" +#include "macro.h" +#include "tmpfile-util.h" + +static void test_clock_is_localtime(void) { + _cleanup_(unlink_tempfilep) char adjtime[] = "/tmp/test-adjtime.XXXXXX"; + _cleanup_fclose_ FILE* f = NULL; + + static const struct scenario { + const char* contents; + int expected_result; + } scenarios[] = { + /* adjtime configures UTC */ + {"0.0 0 0\n0\nUTC\n", 0}, + /* adjtime configures local time */ + {"0.0 0 0\n0\nLOCAL\n", 1}, + /* no final EOL */ + {"0.0 0 0\n0\nUTC", 0}, + {"0.0 0 0\n0\nLOCAL", 1}, + /* empty value -> defaults to UTC */ + {"0.0 0 0\n0\n", 0}, + /* unknown value -> defaults to UTC */ + {"0.0 0 0\n0\nFOO\n", 0}, + /* no third line */ + {"0.0 0 0", 0}, + {"0.0 0 0\n", 0}, + {"0.0 0 0\n0", 0}, + }; + + /* without an adjtime file we default to UTC */ + assert_se(clock_is_localtime("/nonexisting/adjtime") == 0); + + assert_se(fmkostemp_safe(adjtime, "w", &f) == 0); + log_info("adjtime test file: %s", adjtime); + + for (size_t i = 0; i < ELEMENTSOF(scenarios); ++i) { + log_info("scenario #%zu:, expected result %i", i, scenarios[i].expected_result); + log_info("%s", scenarios[i].contents); + rewind(f); + ftruncate(fileno(f), 0); + assert_se(write_string_stream(f, scenarios[i].contents, WRITE_STRING_FILE_AVOID_NEWLINE) == 0); + assert_se(clock_is_localtime(adjtime) == scenarios[i].expected_result); + } +} + +/* Test with the real /etc/adjtime */ +static void test_clock_is_localtime_system(void) { + int r; + r = clock_is_localtime(NULL); + + if (access("/etc/adjtime", F_OK) == 0) { + log_info("/etc/adjtime exists, clock_is_localtime() == %i", r); + /* if /etc/adjtime exists we expect some answer, no error or + * crash */ + assert_se(IN_SET(r, 0, 1)); + } else + /* default is UTC if there is no /etc/adjtime */ + assert_se(r == 0); +} + +int main(int argc, char *argv[]) { + test_clock_is_localtime(); + test_clock_is_localtime_system(); + + return 0; +} |