public void AddProductToShoppingCart_Add_Product() { var product = new Product() { Category = "Computer Accessaries", Discount = 10, Name = "Wireless Mouse", ProductId = 1, OriginalPrice = 300, HasAnyPromotionalOffer = true, PromotionalOffer = PromotionalOffer.ByTwoGetOneFree }; _userRepo.AddProductToShoppingCart(product); var productPurchaseList = _purchaseOrderRepo.GetProductPurchaseList(); Assert.AreEqual(productPurchaseList.Count, 1); }