public void SetDatesTest() { var slot = new Timeslot(); slot.StartDateTime = new DateTime(2020, 09, 18, 23, 30, 00); slot.EndDateTime = slot.StartDateTime.AddMinutes(30); bool exceptionThrown = false; try { slot.ValidateDates(); } catch (Exception ex) { exceptionThrown = true; } Assert.IsFalse(exceptionThrown); }