public void TestGetAllSurveys()
        {
            // Arrange
            SurveyMockDAO    surveyDAO  = new SurveyMockDAO();
            ParkMockDAO      parkDAO    = new ParkMockDAO();
            SurveyController controller = new SurveyController(surveyDAO, parkDAO);

            // Act
            SurveyVM           vm      = new SurveyVM();
            IActionResult      result  = controller.FavoriteParks();
            ViewResult         vr      = result as ViewResult;
            IList <SurveyPost> surveys = surveyDAO.GetAllSurveys();

            surveys = vr.Model as IList <SurveyPost>;

            // Assert
            Assert.IsNotNull(vr, "Index did not return a ViewResult");
            Assert.AreEqual(4, surveys.Count);
            Assert.IsInstanceOfType(vr.Model, typeof(IList <SurveyPost>));
        }