1 files changed, 61 insertions, 0 deletions
diff --git a/src/lib/test-utc-mktime.c b/src/lib/test-utc-mktime.c
new file mode 100644
index 0000000..157179b
--- /dev/null
+++ b/src/lib/test-utc-mktime.c
@@ -0,0 +1,61 @@
+/* Copyright (c) 2007-2018 Dovecot authors, see the included COPYING file */
+
+#include "test-lib.h"
+#include "utc-mktime.h"
+
+struct test_utc_mktime {
+	int year, month, day, hour, min, sec;
+	time_t out;
+};
+
+void test_utc_mktime(void)
+{
+	static const struct test_utc_mktime tests[] = {
+#ifdef TIME_T_SIGNED
+		{ 1969, 12, 31, 23, 59, 59, -1 },
+		{ 1901, 12, 13, 20, 45, 53, -2147483647 },
+#endif
+#if (TIME_T_MAX_BITS > 32 || !defined(TIME_T_SIGNED))
+		{ 2106, 2, 7, 6, 28, 15, 4294967295 },
+		{ 2038, 1, 19, 3, 14, 8, 2147483648 },
+#endif
+		{ 2007, 11, 7, 1, 7, 20, 1194397640 },
+		{ 1970, 1, 1, 0, 0, 0, 0 },
+		{ 2038, 1, 19, 3, 14, 7, 2147483647 },
+		{ INT_MAX, INT_MAX, INT_MAX, INT_MAX, INT_MAX, INT_MAX, -1 },
+#if TIME_T_MAX_BITS > 32
+		{ 2106, 2, 7, 6, 28, 16, 4294967296 },
+#endif
+		/* June leap second */
+		{ 2015, 6, 30, 23, 59, 59, 1435708799 },
+		{ 2015, 6, 30, 23, 59, 60, 1435708799 },
+		{ 2015, 7, 1, 0, 0, 0, 1435708800 },
+		/* Invalid leap second */
+		{ 2017, 1, 24, 16, 40, 60, 1485276059 },
+		/* Dec leap second */
+		{ 2016, 12, 31, 23, 59, 59, 1483228799 },
+		{ 2016, 12, 31, 23, 59, 60, 1483228799 },
+		{ 2017, 1, 1, 0, 0, 0, 1483228800 },
+	};
+	struct tm tm;
+	unsigned int i;
+	time_t t;
+	bool success;
+
+	for (i = 0; i < N_ELEMENTS(tests); i++) {
+		const struct test_utc_mktime *test = &tests[i];
+		i_zero(&tm);
+		tm.tm_year = test->year - 1900;
+		tm.tm_mon = test->month - 1;
+		tm.tm_mday = test->day;
+		tm.tm_hour = test->hour;
+		tm.tm_min = test->min;
+		tm.tm_sec = test->sec;
+
+		t = utc_mktime(&tm);
+		success = t == test->out;
+		test_out_reason(t_strdup_printf("utc_mktime(%d)", i), success,
+				success ? NULL : t_strdup_printf("%ld != %ld",
+							(long)t, (long)test->out));
+	}
+}