public void Get_Total_Amount_After_Discounts_With_Coupon_Should_Return_Correct_Price()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var couponDiscountAmount = 50;
var tShirtCategory = new Category("TShirt");
var jacketCategory = new Category("Jacket");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
var kotonTShirt = new Product("Koton TShirt", 40, tShirtCategory);
var lacosteTShirt = new Product("Lacoste TShirt", 220, tShirtCategory);
var zaraJacket = new Product("Zara Jacket", 260, jacketCategory);
shoppingCart.AddItem(poloTShirt, 2);
shoppingCart.AddItem(kotonTShirt);
shoppingCart.AddItem(lacosteTShirt);
shoppingCart.AddItem(zaraJacket);
var campaigns = new List <Discount>();
var coupon = new AmountCoupon(couponDiscountAmount, 300);
shoppingCart.ApplyDiscounts(campaigns);
shoppingCart.ApplyCoupon(coupon);
var totalAmount = shoppingCart.GetTotalAmountAfterDiscounts();
// ( (120 * 2) + 40 + 220 ) + 260 => 760 - 50 => 710
Assert.True(totalAmount == shoppingCart.TotalItemPrice - couponDiscountAmount);
}
public void Add_Item_With_Null_Object_Should_Return_Argument_Null_Exception()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
Product product = null;
Assert.Throws <ArgumentNullException>(() => shoppingCart.AddItem(product));
}
public void Apply_Coupon_With_Null_Object_Should_Return_Argument_Null_Exception()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
Coupon coupon = null;
Assert.Throws <ArgumentNullException>(() => shoppingCart.ApplyCoupon(coupon));
}
public void Remove_Item_With_Negative_Quantity_Should_Return_Argument_Exception()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
Assert.Throws <ArgumentException>(() => shoppingCart.RemoveItem(poloTShirt, -3));
}
public void Apply_Coupon_Should_Add_The_Coupon_To_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var coupon = new AmountCoupon(50, 300);
shoppingCart.ApplyCoupon(coupon);
Assert.NotNull(shoppingCart.Coupon);
}
public void Add_Item_With_Quantity_Should_Add_Correct_Amount_Of_Items_To_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
shoppingCart.AddItem(poloTShirt, 3);
Assert.True(shoppingCart.Items.Single(y => y.Product.Title == poloTShirt.Title).Quantity == 3);
}
public void Add_Item_Should_Add_The_Item_To_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
shoppingCart.AddItem(poloTShirt);
Assert.Contains(shoppingCart.Items, y => y.Product.Title == poloTShirt.Title);
}
public void Add_Item_Should_Increase_Quantity_If_The_Product_Is_Exist_In_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
shoppingCart.AddItem(poloTShirt, 3);
shoppingCart.AddItem(poloTShirt);
Assert.True(shoppingCart.Items.Single(y => y.Product.Title == poloTShirt.Title).Quantity == 4);
}
public void Remove_Item_With_Quantity_That_Is_More_Than_Whats_In_The_Cart_Should_Return_Zero()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
shoppingCart.AddItem(poloTShirt);
shoppingCart.RemoveItem(poloTShirt, 2);
Assert.True(shoppingCart.Items.Single(y => y.Product.Title == poloTShirt.Title).Quantity == 0);
}
public void Apply_Coupon_Should_Replace_The_Previous_Coupon_In_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var coupon = new AmountCoupon(50, 300);
shoppingCart.ApplyCoupon(coupon);
var coupon2 = new AmountCoupon(50, 200);
shoppingCart.ApplyCoupon(coupon2);
Assert.True(shoppingCart.Coupon.MinimumAmountToApply == 200);
}
public void Apply_Discounts_Should_Not_Add_Any_Discount_To_The_Cart_If_No_Campaign_Is_Available()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 100, tShirtCategory);
var campaigns = new List <Discount>();
shoppingCart.AddItem(poloTShirt, 2);
shoppingCart.ApplyDiscounts(campaigns);
Assert.Null(shoppingCart.Campaign);
}
public void Apply_Discounts_With_A_Campaign_That_Does_Not_Satisfy_Minimum_Product_Quantity_Should_Not_Add_The_Discount_To_The_Cart()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 120, tShirtCategory);
var campaigns = new List <Discount>();
shoppingCart.AddItem(poloTShirt);
var tShirtCampaign = new RateCampaign(20, 2, tShirtCategory);
campaigns.Add(tShirtCampaign);
shoppingCart.ApplyDiscounts(campaigns);
Assert.Null(shoppingCart.Campaign);
}
public void Apply_Discounts_Should_Add_A_Discount_To_The_Cart_Which_Has_The_Maximum_Discount_Among_All_Campaigns()
{
var calc = new Mock <IDeliveryCostCalculator>();
var shoppingCart = new Core.ShoppingCart(calc.Object);
var tShirtCategory = new Category("TShirt");
var poloTShirt = new Product("Polo TShirt", 100, tShirtCategory);
var kotonTShirt = new Product("Koton TShirt", 40, tShirtCategory);
var campaigns = new List <Discount>();
shoppingCart.AddItem(poloTShirt, 2);
shoppingCart.AddItem(kotonTShirt, 5);
var tShirtCampaign = new RateCampaign(10, 3, tShirtCategory);
var tShirtCampaign2 = new AmountCampaign(100, 5, tShirtCategory);
campaigns.Add(tShirtCampaign);
campaigns.Add(tShirtCampaign2);
shoppingCart.ApplyDiscounts(campaigns);
Assert.True(shoppingCart.Campaign == tShirtCampaign2);
}
