public void AvailableReservationTest()
{
//arrange
SiteSqlDAO dao = new SiteSqlDAO(connectionString);
//act
DateTime startDate = new DateTime(2019, 10, 19);
DateTime endDate = new DateTime(2019, 10, 21);
IList <Site> listOfSites = dao.ViewCampsites(1, startDate, endDate);
//assert
Assert.AreEqual(5, listOfSites.Count);
}