1 files changed, 112 insertions, 0 deletions
diff --git a/src/test/test-date.c b/src/test/test-date.c
new file mode 100644
index 0000000..162ac34
--- /dev/null
+++ b/src/test/test-date.c
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "string-util.h"
+#include "tests.h"
+#include "time-util.h"
+
+static void test_should_pass(const char *p) {
+        usec_t t, q;
+        char buf[FORMAT_TIMESTAMP_MAX], buf_relative[FORMAT_TIMESTAMP_RELATIVE_MAX];
+
+        log_info("Test: %s", p);
+        assert_se(parse_timestamp(p, &t) >= 0);
+        assert_se(format_timestamp_style(buf, sizeof(buf), t, TIMESTAMP_US));
+        log_info("\"%s\" → \"%s\"", p, buf);
+
+        assert_se(parse_timestamp(buf, &q) >= 0);
+        if (q != t)
+                log_error("round-trip failed: \"%s\" → \"%s\"",
+                          buf, FORMAT_TIMESTAMP_STYLE(q, TIMESTAMP_US));
+        assert_se(q == t);
+
+        assert_se(format_timestamp_relative(buf_relative, sizeof(buf_relative), t));
+        log_info("%s", strna(buf_relative));
+}
+
+static void test_should_parse(const char *p) {
+        usec_t t;
+
+        log_info("Test: %s", p);
+        assert_se(parse_timestamp(p, &t) >= 0);
+        log_info("\"%s\" → \"@%" PRI_USEC "\"", p, t);
+}
+
+static void test_should_fail(const char *p) {
+        usec_t t;
+        int r;
+
+        log_info("Test: %s", p);
+        r = parse_timestamp(p, &t);
+        if (r >= 0)
+                log_info("\"%s\" → \"@%" PRI_USEC "\" (unexpected)", p, t);
+        else
+                log_info("parse_timestamp() returns %d (expected)", r);
+        assert_se(r < 0);
+}
+
+static void test_one(const char *p) {
+        _cleanup_free_ char *with_utc = NULL;
+
+        with_utc = strjoin(p, " UTC");
+        test_should_pass(p);
+        test_should_pass(with_utc);
+}
+
+static void test_one_noutc(const char *p) {
+        _cleanup_free_ char *with_utc = NULL;
+
+        with_utc = strjoin(p, " UTC");
+        test_should_pass(p);
+        test_should_fail(with_utc);
+}
+
+int main(int argc, char *argv[]) {
+        /* Tests have hard-coded results that do not expect a specific timezone to be set by the caller */
+        assert_se(unsetenv("TZ") >= 0);
+
+        test_setup_logging(LOG_DEBUG);
+
+        test_one("17:41");
+        test_one("18:42:44");
+        test_one("18:42:44.0");
+        test_one("18:42:44.999999999999");
+        test_one("12-10-02 12:13:14");
+        test_one("12-10-2 12:13:14");
+        test_one("12-10-03 12:13");
+        test_one("2012-12-30 18:42");
+        test_one("2012-10-02");
+        test_one("Mar 12 12:01:01");
+        test_one("Mar 12 12:01:01.687197");
+        test_one("Tue 2012-10-02");
+        test_one("yesterday");
+        test_one("today");
+        test_one("tomorrow");
+        test_one_noutc("16:20 UTC");
+        test_one_noutc("16:20 Asia/Seoul");
+        test_one_noutc("tomorrow Asia/Seoul");
+        test_one_noutc("2012-12-30 18:42 Asia/Seoul");
+        test_one_noutc("now");
+        test_one_noutc("+2d");
+        test_one_noutc("+2y 4d");
+        test_one_noutc("5months ago");
+        test_one_noutc("@1395716396");
+        test_should_parse("1970-1-1 UTC");
+        test_should_pass("1970-1-1 00:00:01 UTC");
+        test_should_fail("1969-12-31 UTC");
+        test_should_fail("-1000y");
+        test_should_fail("today UTC UTC");
+        test_should_fail("now Asia/Seoul");
+        test_should_fail("+2d Asia/Seoul");
+        test_should_fail("@1395716396 Asia/Seoul");
+#if SIZEOF_TIME_T == 8
+        test_should_pass("9999-12-30 23:59:59 UTC");
+        test_should_fail("9999-12-31 00:00:00 UTC");
+        test_should_fail("10000-01-01 00:00:00 UTC");
+#elif SIZEOF_TIME_T == 4
+        test_should_pass("2038-01-18 03:14:07 UTC");
+        test_should_fail("2038-01-18 03:14:08 UTC");
+#endif
+
+        return 0;
+}