public void UpdateMain() { OrderList orderList = new OrderList(); orderList.AddMain(MainMenu.CheeseBurger); orderList.UpdateMain(MainMenu.CheeseBurger, MainMenu.SteakChips); Assert.AreEqual(1, orderList.GetCountOfItems()); Assert.AreEqual(MainMenu.SteakChips, orderList.GetList()[0].Meal); }