Initial project import

tools/v/vlib/time/chrono_test.v

@@ -0,0 +1,35 @@
+module time
+
+fn test_days_from_unix_epoch() {
+	s := '2000-05-10 22:11:03'
+	time_test := parse(s) or {
+		eprintln('> failing format: ${s} | err: ${err}')
+		assert false
+		return
+	}
+	one_day_in_seconds := 86400
+
+	assert time_test.days_from_unix_epoch() == 11087
+	assert time_test.days_from_unix_epoch() == int(time_test.unix / one_day_in_seconds)
+	assert days_from_unix_epoch(1970, 1, 1) == 0
+	assert days_from_unix_epoch(1970, 2, 1) == 31
+	assert days_from_unix_epoch(1970, 3, 1) == 59
+	assert days_from_unix_epoch(2022, 11, 10) == 19306
+}
+
+fn test_date_from_days_after_unix_epoch() {
+	assert date_from_days_after_unix_epoch(11087).year == 2000
+	assert date_from_days_after_unix_epoch(11087).month == 5
+	assert date_from_days_after_unix_epoch(11087).day == 10
+	assert date_from_days_after_unix_epoch(1).year == 1970
+	assert date_from_days_after_unix_epoch(1).month == 1
+	assert date_from_days_after_unix_epoch(1).day == 2
+
+	assert date_from_days_after_unix_epoch(31).year == 1970
+	assert date_from_days_after_unix_epoch(31).month == 2
+	assert date_from_days_after_unix_epoch(31).day == 1
+
+	assert date_from_days_after_unix_epoch(59).year == 1970
+	assert date_from_days_after_unix_epoch(59).month == 3
+	assert date_from_days_after_unix_epoch(59).day == 1
+}