public void Get_Price_When_List_Is_Empty(int initialQuantity, int priceOfQuantity, decimal result) { ICatalogueItem catalogueItem = new SimpleCatalogueItem(); IItem item = new FakeItem3(); for (int i = 0; i < initialQuantity; i++) { catalogueItem.Add(item); } decimal price = catalogueItem.GetPriceOfQuantity(priceOfQuantity); Assert.That(price.Equals(result)); }