public static void One_B_Item_Costs_100()
{
var cart = new ShoppingCart(nullProcessor);
var bItem1 = new Item {Name = "B", Price = 100};
cart.AddItem(bItem1);
Assert.AreEqual(cart.Total, 100);
}
public static void One_A_Item_Costs_50()
{
var cart = new ShoppingCart(nullProcessor);
var aItem1 = new Item {Name = "A", Price = 50};
cart.AddItem(aItem1);
Assert.AreEqual(cart.Total, 50);
}
public static void Four_A_Items_And_Two_B_Items_Costs_225()
{
var cart = new ShoppingCart(discountProcessors);
var aItem1 = new Item { Name = "A", Price = 50 };
var aItem2 = new Item { Name = "A", Price = 50 };
var aItem3 = new Item { Name = "A", Price = 50 };
var aItem4 = new Item { Name = "A", Price = 50 };
var bItem1 = new Item { Name = "B", Price = 30 };
var bItem2 = new Item { Name = "B", Price = 30 };
cart.AddItem(aItem1);
cart.AddItem(aItem2);
cart.AddItem(aItem3);
cart.AddItem(aItem4);
cart.AddItem(bItem1);
cart.AddItem(bItem2);
Assert.AreEqual(cart.Total, 225);
}
public static void Empty_Cart_Total_Value_Is_Zero()
{
var cart = new ShoppingCart(nullProcessor);
Assert.AreEqual(cart.Total, 0);
}
public static void Two_A_Items_Costs_100()
{
var cart = new ShoppingCart(nullProcessor);
var aItem1 = new Item {Name = "A", Price = 50};
var aItem2 = new Item {Name = "A", Price = 50};
cart.AddItem(aItem1);
cart.AddItem(aItem2);
Assert.AreEqual(cart.Total, 100);
}
public static void Three_A_Items_Applies_Discount_Costing_130()
{
var aItemDiscountProcessor = new AItemDiscountProcessor();
var cart = new ShoppingCart(new List<IDiscountProcessor> {aItemDiscountProcessor});
var aItem1 = new Item {Name = "A", Price = 50};
var aItem2 = new Item {Name = "A", Price = 50};
var aItem3 = new Item {Name = "A", Price = 50};
cart.AddItem(aItem1);
cart.AddItem(aItem2);
cart.AddItem(aItem3);
Assert.AreEqual(cart.Total, 130);
}
