static void Main(string[] args)
{
//Defined 2 category
Category electronics = new Category("Electronics");
Category auto = new Category("Automotive");
//Defined 4 campaign with constructor method.
IDiscount camp1 = new Campaign(electronics, DiscountType.Rate, 20, 3);
IDiscount camp2 = new Campaign(electronics, DiscountType.Rate, 50, 5);
IDiscount camp3 = new Campaign(electronics, DiscountType.Amount, 5, 10);
IDiscount camp4 = new Campaign(auto, DiscountType.Rate, 20, 3);
//Defined a coupon with Initialize method, Coupon implemented ICoupon and IDiscount interfaces.This is a example of use Interface Seg. princible.
IDiscount coupon = new Coupon().Initialize("a45f", DiscountType.Amount, 10, 10);
//Define 6 product with constructor method.
Product mac = new Product("Macbook Pro", electronics, 10000.00m, 4);
Product cas = new Product("Casper Nova", electronics, 3500m, 2);
Product len = new Product("Lenovo RSX", electronics, 2000m, 1);
Product hpx = new Product("Hp 1XN", electronics, 3800m, 1);
Product mic = new Product("Michelin Tire", auto, 1000m, 4);
Product amg = new Product("AMG Bodykit", auto, 8000m, 1);
//Create new cart context and used dependency injection method for delivery operation, usable IoC also this class have single responsilibty princibles.
IShoppingCartContext context = new ShoppingCartContext(new CargoDeliveryStrategy());
//Added products at cart.
context.AddItem(mac);
context.AddItem(cas);
context.AddItem(len);
context.AddItem(hpx);
context.AddItem(mic);
context.AddItem(amg);
//Apply discounts and delivery cost.
context.Apply(new List <IDiscount>()
{
camp1, camp2, camp3, coupon
});
//other methods
context.GetDeliveryCost();
context.GetTotalDiscount();
//Print cart
context.Print();
}
public void Shopping_Cart_Total_Discount_Calculate()
{
//Arrange
var deliveryStrategy = new CargoDeliveryStrategy();
var context = new ShoppingCartContext(deliveryStrategy);
var catg = new Category("electronics");
decimal expectedAmount = 1500;
//Act
context.AddItem(new Product("tv", catg, 3000, 2));
context.AddItem(new Product("pc", catg, 4500, 1));
var campaign = new Campaign(catg, DiscountType.Rate, 20, 2);
context.Apply(new List <IDiscount> {
campaign
});
var act = context.GetTotalDiscount();
//Assert
Assert.Equal(expectedAmount, act);
}
