public void GetReservationByCampgroundTest()
        {
            //Arrange
            ReservationSqlDAO reservationSqlDAO = new ReservationSqlDAO(connectionString);
            //Act
            IList <Reservations> reservations = reservationSqlDAO.GetReservationByCampground(testCampgroundId);

            //Assert
            Assert.IsTrue(reservations.Count > 0);
        }