public void getFordPriceTest()
{
decimal price = 0;
// Test default car price
Car ford = new FordFocus();
price = ford.GetPrice();
Assert.AreEqual((decimal)9000.5, price);
// Test car price with AirCo
Car airco = new AirCo(ford);
price = airco.GetPrice();
Assert.AreEqual((decimal)9150.5, price);
// Test car price with 2 or more accessories
Car gps = new GPS(airco);
price = gps.GetPrice();
Assert.AreEqual((decimal)9250.75, price);
}
