public void ShouldReturnFalseWhenCurrentRangeDoNotEndsWithRange(int day) { // For DateTimeRange currentRange = new DateTimeRange { Start = new DateTime(2020, 04, 01), End = new DateTime(2020, 04, 30) }; DateTimeRange newRange = currentRange; // Given DateTimeRange range = new DateTimeRange { Start = new DateTime(2020, 04, 01), End = new DateTime(2020, 04, day) }; bool value = newRange.EndsWith(range); // Assert Assert.IsFalse(value); }