changes

crates/domain/tests/metric/sleep_minutes_test.rs

@@ -0,0 +1,12 @@
+use domain::metric::SleepMinutes;
+
+#[test]
+fn a_night_longer_than_a_day_is_rejected() {
+    assert!(SleepMinutes::new(1_441).is_err());
+}
+
+#[test]
+fn the_boundaries_of_a_nights_sleep_are_valid() {
+    assert_eq!(SleepMinutes::new(0).unwrap().value(), 0);
+    assert_eq!(SleepMinutes::new(1_440).unwrap().value(), 1_440);
+}