public ShoppingBasketTestsFixture(ITestOutputHelper outputHelper)
{
// Setup DI.
var serviceCollection = new ServiceCollection();
serviceCollection.AddLogging((builder) => builder.AddXUnit(outputHelper));
serviceCollection.AddShoppingBasketDependencies();
ServiceProvider = serviceCollection.BuildServiceProvider();
// Create basket items.
var bread = new BasketItem(Guid.NewGuid(), "Bread", 1);
var butter = new BasketItem(Guid.NewGuid(), "Butter", 0.8M);
var milk = new BasketItem(Guid.NewGuid(), "Milk", 1.15M);
// Create discounts.
var breadDiscount = new ProductDiscount("Buy two butters, get one bread at 50% off", 50);
breadDiscount.AddCondition(butter.ProductId, 2);
bread.AddDiscount(breadDiscount);
var milkDiscount = new ProductDiscount("Buy three milks, get fourth for free", 100);
milkDiscount.AddCondition(milk.ProductId, 3);
milk.AddDiscount(milkDiscount);
Products = new List <BasketItem> {
bread, butter, milk
};
}