public void discount_4th_milk(int quantity, decimal expectedDiscount)
{
Products products = new Products();
AddMilks(products, quantity);
Money discount = _fourthMilkFreeDiscount.Apply(products);
Assert.Equal(new Money(expectedDiscount), discount);
}
public void discount_a_bread_at_50_percent_off(int butterQuantity, int breadQuantity, decimal expectedDiscount)
{
Products products = new Products();
AddButter(products, butterQuantity);
AddBread(products, breadQuantity);
Money discount = fiftyPercentBreadDiscount.Apply(products);
Assert.Equal(new Money(expectedDiscount), discount);
}
public override decimal CalculateCost()
{
if (!rangeValidator.Includes(RentalsCount))
{
throw new InvalidOperationException();
}
decimal cost = base.CalculateCost();
return(discount.Apply(cost));
}
/// <summary>
/// Calculate the order discount and apply it to the order.
/// </summary>
/// <param name="currentOrder">The ODataOrderHeader for the current order.</param>
/// <param name="discountAmount">The decimal for the discount amount.</param>
public void Apply(ODataOrderHeader currentOrder, DdfDiscount discountData)
{
discount.Apply(currentOrder, discountData);
}
