public async Task ScenarioOkay01TestAsync() { // arrange Reservation = new Reservation { CarId = 1, CustomerId = 1, From = new DateTime(Year, 12, 01), To = new DateTime(Year, 12, 03) }; // act var insertedReservation = await _target.Insert(Reservation); // assert Assert.True(_target.DateRangeCheck(Reservation)); Assert.Equal(Reservation.CarId, insertedReservation.CarId); }