public void checkOnlyOneHotelPerProperty()
        {
            Residential resid = new Residential("");
            resid.setHotelCount(1);
            resid.addHotel();

            Assert.AreEqual(1, resid.getHotelCount());
            resid.setHotelCount(0);
            resid.addHotel();
            Assert.AreEqual(1, resid.getHotelCount());
        }