public void IsContainedBy_Should_Return_True_When_Checkin_Date_Is_Not_Contained_In_Range() { // SETUP var participantCheckinDate = new DateTime(2018, 05, 10, 21, 30, 40); var participantCheckin = new Checkin(Email.Of("*****@*****.**"), participantCheckinDate); var periodStartingDate = new DateTime(2018, 10, 09); var periodEndingDate = new DateTime(2018, 12, 02); var period = new Period(periodStartingDate, periodEndingDate); // RUN bool isCheckinDateContainedInPeriod = participantCheckin.IsContainedBy(period); // ASSERT Check.That(isCheckinDateContainedInPeriod).IsFalse(); }