public void VerifyMultiplePromotion_Scenerio_1()
{
ActivePromotion activePromotion = new ActivePromotion();
BulkItemPromotion bulkItemPromotionA = new BulkItemPromotion("A", 3, 130);
BulkItemPromotion bulkItemPromotionB = new BulkItemPromotion("B", 2, 45);
CombineItemPromotion combineItemPromotionC = new CombineItemPromotion("C", "D", 30);
activePromotion.AddPromotion(bulkItemPromotionA);
activePromotion.AddPromotion(bulkItemPromotionB);
activePromotion.AddPromotion(combineItemPromotionC);
CartItem cartItemA = new CartItem(50, "A", 3);
CartItem cartItemB = new CartItem(30, "B", 5);
CartItem cartItemC = new CartItem(20, "C", 1);
CartItem cartItemD = new CartItem(15, "D", 1);
Cart cart = new Cart();
cart.AddItem(cartItemA);
cart.AddItem(cartItemB);
cart.AddItem(cartItemC);
cart.AddItem(cartItemD);
PromotionEngine promotionEngine = new PromotionEngine(activePromotion);
int totalCost = promotionEngine.checkout(cart);
Assert.AreEqual(280, totalCost);
}
public void VerifyBulkItemPromotionWithTwoItem()
{
ActivePromotion activePromotion = new ActivePromotion();
BulkItemPromotion bulkItemPromotionA = new BulkItemPromotion("A", 3, 130);
BulkItemPromotion bulkItemPromotionB = new BulkItemPromotion("B", 2, 45);
activePromotion.AddPromotion(bulkItemPromotionA);
activePromotion.AddPromotion(bulkItemPromotionB);
CartItem cartItemA = new CartItem(50, "A", 5);
CartItem cartItemB = new CartItem(30, "B", 3);
Cart cart = new Cart();
cart.AddItem(cartItemA);
cart.AddItem(cartItemB);
PromotionEngine promotionEngine = new PromotionEngine(activePromotion);
int totalCost = promotionEngine.checkout(cart);
Assert.AreEqual(305, totalCost);
}
public void VerifyBulkItemPromotionWithOneItem()
{
ActivePromotion activePromotion = new ActivePromotion();
BulkItemPromotion bulkItemPromotion = new BulkItemPromotion("A", 3, 130);
activePromotion.AddPromotion(bulkItemPromotion);
CartItem cartItem = new CartItem(50, "A", 5);
Cart cart = new Cart();
cart.AddItem(cartItem);
PromotionEngine promotionEngine = new PromotionEngine(activePromotion);
int totalCost = promotionEngine.checkout(cart);
Assert.AreEqual(230, totalCost);
}
