private IDiscountHandler GetDefaultDiscountHandler()
{
var tierOneDiscountHandler = new QuantityPriceDiscountHandler(1000, 20, .1d);
var tierTwoDiscountHandler = new QuantityPriceDiscountHandler(2000, 10, .2d);
var tierThreeDiscountHandler = new QuantityPriceDiscountHandler(5000, 5, .2d);
tierOneDiscountHandler.SetNext(tierTwoDiscountHandler).SetNext(tierThreeDiscountHandler);
return(tierOneDiscountHandler);
}
public void Handle_ReturnsZero_WhenQuantityPriceNotMet()
{
var discount = new QuantityPriceDiscountHandler(1, 5, .5d);
var bike = new Bike(string.Empty, string.Empty, 2);
var line = new Line(bike, 1);
double discountAmount = discount.Handle(line);
Assert.AreEqual(discountAmount, 0d);
}
public void Handle_ReturnsDiscount_WhenQuantityPriceMet()
{
var discount = new QuantityPriceDiscountHandler(1, 5, .5d);
var bike = new Bike(string.Empty, string.Empty, 1);
var line = new Line(bike, 6);
double discountAmount = discount.Handle(line);
Assert.AreEqual(discountAmount, line.GetChargeAmount() - discountAmount);
}
