public void GetAllCampgrounds_ByPark_ShouldReturn_Right_Count(int parkID, int expected)
        {
            CampgroundSqlDAO   dao         = new CampgroundSqlDAO(ConnectionString);
            IList <Campground> campgrounds = dao.GetAllCampgroundsByPark(parkID);

            Assert.AreEqual(expected, campgrounds.Count);
        }