public void GetAvailableReservationsSingleCapmgroundTest(int campgroundId, string startDate, string endDate)
        {
            //Arrange
            SiteSqlDAO dao = new SiteSqlDAO(ConnectionString);

            //Act
            IList <Site> sites = dao.GetAvailableReservationsSingleCapmground(campgroundId, startDate, endDate);

            //Assert
            Assert.AreEqual(1, sites.Count);
        }