public void It_should_apply_discounts_first_then_coupons()
{
//Arrange
Category category = new Category("food");
var campaign1 = new RateCampaign(category, 40, 1);
var campaign2 = new AmountCampaign(category, 50.0, 1);
var coupon = new AmountCoupon(100, 60);
var cart = new Cart();
Product apple = new Product("Elma", 200, category);
Product armut = new Product("Armut", 500, category);
cart.AddItem(apple, 5);
cart.AddItem(armut, 2);
//Act
cart.ApplyCoupon(coupon);
cart.ApplyDiscounts(campaign1, campaign2);
//Verify
cart.RawTotal.Should().Be(2000);
cart.CampaignDiscount.Should().Be(800);
cart.TotalAmountAfterDiscounts.Should().Be(1140);
}
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 ApplicableCoupon_InapplicableCampaign()
{
ICart cart = new ShoppingCart.Core.Cart.Services.Cart();
cart.Add(this.product1Category1, 1);
cart.Add(this.product2Category1, 5);
cart.Add(this.product3Category2, 10);
ICollection <ICampaign> campaigns = new Collection <ICampaign>()
{
new AmountCampaign(this.category1, "", 100.0, true, false, double.MaxValue, 0),
new RateCampaign(this.category1, "", 0.5, false, true, 0, int.MaxValue)
};
IAmountCoupon applicableCoupon = new AmountCoupon(100, "", true, true, 1000, 1);
ICollection <ICoupon> coupons = new Collection <ICoupon>()
{
applicableCoupon,
new AmountCoupon(1000, "", true, false, double.MaxValue, 0),
new RateCoupon(.5, "", false, true, 0, int.MaxValue),
};
cart.ApplyDiscounts(campaigns, coupons);
Assert.NotEqual(cart.Items.Sum(x => x.TotalPrice), cart.TotalAmount);
Assert.NotEqual(cart.Items.Sum(x => x.PricePerProduct * x.Quantity), cart.TotalAmount);
Assert.Equal(cart.Items.Sum(x => x.PricePerProduct * x.Quantity), cart.TotalAmountAfterDiscounts);
Assert.Equal(cart.TotalAmount - cart.TotalCampaignDiscountAmount, cart.TotalAmountAfterCampaignDiscount);
Assert.Equal(0, cart.TotalCampaignDiscountAmount);
Assert.Equal(applicableCoupon.DiscountAmount, cart.TotalCouponDiscountAmount);
Assert.Null(cart.AppliedCampaign);
Assert.Equal(applicableCoupon, cart.AppliedCoupon);
}
public void GetTotalAmountTest()
{
AmountCoupon rateCoupon = new AmountCoupon("AmountTest", 150, 77);
Cart cart = new Cart();
Product product = new Product(3, "testProduct", 100, 5, 99, "");
cart.AddItem(product, 2);
double totalAmount = cart.GetTotalAmount();
Assert.Equal(200, totalAmount);
}
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 GetDiscount_WhenCalledForAmountCoupon_ReturnsDiscount()
{
//Arrange
CouponFactory factory = new CouponFactory();
AmountCoupon coupon = factory.ProduceCoupon(50, 10, DiscountType.Amount) as AmountCoupon;
//Act
double discount = coupon.GetDiscount(120);
//Assert
Assert.Equal(coupon.Discount, discount);
}
public void It_should_create_coupon_with_amount_and_minimum_amount()
{
//Arrange
double minimumCartAmount = 100;
double amountOfDiscount = 10;
//Act
var discountType = DiscountType.Amount;
var coupon = new AmountCoupon(minimumCartAmount, amountOfDiscount);
//Verify
coupon.DiscountType.Should().Be(discountType);
}
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);
}
static void Main()
{
try
{
var tShirtCategory = new Category("TShirt");
var sportTShirtCategory = new Category("Sport TShirt", tShirtCategory);
var jacketCategory = new Category("Jacket");
var campaigns = new List <Discount>();
var tShirtCampaign = new RateCampaign(20, 4, tShirtCategory);
campaigns.Add(tShirtCampaign);
var coupon = new AmountCoupon(50, 300);
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 hummelTShirt = new Product("Hummel Sport TShirt", 120, sportTShirtCategory);
var premiumHummelTShirt = new Product("Premium Hummel Sport TShirt", 500, sportTShirtCategory);
var zaraJacket = new Product("Zara Jacket", 260, jacketCategory);
var cart = new Core.ShoppingCart(new DeliveryCostCalculator(3.5, 2));
cart.AddItem(poloTShirt, 1);
cart.AddItem(hummelTShirt, 1);
cart.AddItem(premiumHummelTShirt);
cart.AddItem(kotonTShirt);
cart.AddItem(lacosteTShirt);
cart.AddItem(zaraJacket);
cart.ApplyDiscounts(campaigns);
cart.ApplyCoupon(coupon);
Console.WriteLine(cart.Print());
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.ReadLine();
}
public void UseAmountCoupon()
{
AmountCoupon rateCoupon = new AmountCoupon("AmountTest", 150, 77);
Cart cart = new Cart();
Product product = new Product(3, "testProduct", 100, 5, 99, "");
cart.AddItem(product, 2);
bool result = cart.ApplyCoupon(rateCoupon);
Assert.True(result);
double totalAmountAfterDiscounts = cart.GetTotalAmountAfterDiscounts();
Assert.Equal(123, totalAmountAfterDiscounts);
double totalCouponDiscount = cart.GetCouponDiscount();
Assert.Equal(77, totalCouponDiscount);
}
public void Get_Coupon_Discount_With_Total_Price_Is_Smaller_Than_Minimum_Amount_Should_Return_Zero()
{
var calc = new Mock <IDeliveryCostCalculator>();
Type type = typeof(Core.ShoppingCart);
var shoppingCart = Activator.CreateInstance(type, calc.Object);
var coupon = new AmountCoupon(50, 300);
((Core.ShoppingCart)shoppingCart).ApplyCoupon(coupon);
MethodInfo method = type.GetMethods(BindingFlags.NonPublic | BindingFlags.Instance)
.Where(x => x.Name == "GetCouponDiscount" && x.IsPrivate).First();
var output = method.Invoke(shoppingCart, new object[] { 120 });
Assert.True(Convert.ToInt32(output) == 0);
}
public void Get_Coupon_Discount_With_Amount_Coupon_Should_Return_The_Discount_Amount_Of_The_Applied_Coupon()
{
var calc = new Mock <IDeliveryCostCalculator>();
Type type = typeof(Core.ShoppingCart);
var shoppingCart = Activator.CreateInstance(type, calc.Object);
int discountAmount = 150;
var coupon = new AmountCoupon(discountAmount, 600);
((Core.ShoppingCart)shoppingCart).ApplyCoupon(coupon);
MethodInfo method = type.GetMethods(BindingFlags.NonPublic | BindingFlags.Instance)
.Where(x => x.Name == "GetCouponDiscount" && x.IsPrivate).First();
var output = method.Invoke(shoppingCart, new object[] { 600 });
Assert.True(Convert.ToInt32(output) == discountAmount);
}
static void Run(ICart cart, IDeliveryCostCalculator deliveryCostCalculator)
{
ICategory categoryConsumerElectronics = new Category("Consumer Electronics");
IProduct productAppleWatch = new Product(categoryConsumerElectronics, "Apple Watch", 2000.0);
IProduct productAppleMacbookPro = new Product(categoryConsumerElectronics, "Apple Macbook Pro", 10000.0);
ICategory categoryToysAndGames = new Category("Toys & Games");
IProduct productLego = new Product(categoryToysAndGames, "Lego Classic Pack", 100.0);
cart.Add(productAppleWatch, 2);
cart.Add(productAppleMacbookPro, 1);
cart.Add(productLego, 10);
ICollection <ICampaign> campaigns = new Collection <ICampaign>();
ICollection <ICoupon> coupons = new Collection <ICoupon>();
IRateCampaign inapplicableRateCampaign = new RateCampaign(categoryToysAndGames, "80% discount on Toys & Games category", .5, true, true, 50000.0, 20);
IAmountCampaign lowAmountCampaign = new AmountCampaign(categoryConsumerElectronics, "100 TL discount on Toys & Games category", 100, false, false, 0.0, 0);
IAmountCampaign bestAmountCampaign = new AmountCampaign(categoryConsumerElectronics, "1400 TL discount on Toys & Games category", 1400, false, true, 0.0, 3);
IAmountCoupon inapplicableAmountCoupon = new AmountCoupon(5000, "5000 TL discount coupon", true, true, 50000, 50);
IRateCoupon lowRateCoupon = new RateCoupon(.1, "10% discount coupon", false, false, 0.0, 0);
IRateCoupon bestRateCoupon = new RateCoupon(.5, "50% discount coupon", true, true, 10000, 13);
campaigns.Add(inapplicableRateCampaign);
campaigns.Add(lowAmountCampaign);
campaigns.Add(bestAmountCampaign);
coupons.Add(inapplicableAmountCoupon);
coupons.Add(lowRateCoupon);
coupons.Add(bestRateCoupon);
cart.ApplyDiscounts(campaigns, coupons);
cart.DeliveryCost = deliveryCostCalculator.Calculate(cart);
var response = cart.Print();
Console.Write(response);
}
public void CreateCoupon_Success(string couponName)
{
var coupon = new AmountCoupon(couponName, 2, 2);
Assert.IsTrue(!string.IsNullOrEmpty(coupon.Description));
}
