public void Calculate_returns_zero_for_emptylist()
{
var decorator = new QuantityDiscountDecorator(null, "", 0, 0);
var result = decorator.Calculate(new List <ShoppingCartItem>());
Assert.Equal(0, result);
}
public void Calculate_returns_discount_for_correct_item(string itemName, int quantity, int discount, decimal expected)
{
var lstItems = new List <ShoppingCartItem>
{
new ShoppingCartItem {
Id = 1, Product = new Product {
Id = 10, Name = "ItemA", Price = 1.1M
}, Quantity = 20
},
new ShoppingCartItem {
Id = 2, Product = new Product {
Id = 11, Name = "ItemB", Price = 2.22M
}, Quantity = 21
},
new ShoppingCartItem {
Id = 3, Product = new Product {
Id = 12, Name = "ItemC", Price = 3.333M
}, Quantity = 22
}
};
var decorator = new QuantityDiscountDecorator(null, itemName, quantity, discount);
var result = decorator.Calculate(lstItems);
Assert.Equal(expected, result);
}
public DiscountBaseDecorator GetDiscounts()
{
DiscountBaseDecorator baseDiscount = null;
baseDiscount = new QuantityDiscountDecorator(baseDiscount, "Milk", 4, 1);
baseDiscount = new QuantityADiscountBDecorator(baseDiscount, "Butter", "Bread", 2, 0.50M);
return(baseDiscount);
}
