public void MakeaReservation_ReturnsCount()
{
// Arrange
ReservationSqlDAL dal = new ReservationSqlDAL(ConnectionString);
int initialCount = dal.CountReservations(CampsiteId);
// Act
dal.ReserveCampsite(CampsiteId, new DateTime(2018, 09, 01), new DateTime(2018, 09, 08), "Cray-Smith");
int newCount = dal.CountReservations(CampsiteId);
// Assert
Assert.AreEqual(initialCount + 1, newCount);
}