public void TestListReturnsReservationsByHotelMatchesDaoReturn()
        {
            // Arrange
            List <Reservation> reservationsByHotel = new List <Reservation>();

            reservationsByHotel.Add(reservations[0]);
            reservationsByHotel.Add(reservations[1]);
            _dao.Setup(dao => dao.List("ABCD1234")).Returns(reservationsByHotel);

            // Act
            List <Reservation> allReservations = _controller.List("ABCD1234");

            // Assert
            CollectionAssert.AreEqual(reservationsByHotel, allReservations, "The return value of the DAO does not match what is being returned by the controller's list method.'");
        }