public void TenPercentDiscount()
{
// ARRANGE
SupermarketCatalog catalog = new FakeCatalog();
var toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 0.99);
var apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1.99);
var cart = new ShoppingCart();
cart.AddItemQuantity(apples, 2.5);
var teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
// ACT
var receipt = teller.ChecksOutArticlesFrom(cart);
// ASSERT
Assert.Equal(4.975, receipt.GetTotalPrice());
Assert.Equal(new List <Discount>(), receipt.GetDiscounts());
Assert.Single(receipt.GetItems());
var receiptItem = receipt.GetItems()[0];
Assert.Equal(apples, receiptItem.Product);
Assert.Equal(1.99, receiptItem.Price);
Assert.Equal(2.5 * 1.99, receiptItem.TotalPrice);
Assert.Equal(2.5, receiptItem.Quantity);
}
public void TestSomething()
{
SupermarketCatalog catalog = new FakeCatalog();
var toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 0.99);
var apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1.99);
var cart = new ShoppingCart();
cart.AddItemQuantity(apples, 2.5);
var teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
var receipt = teller.ChecksOutArticlesFrom(cart);
Assert.Equal(4.975, receipt.GetTotalPrice());
}