public void GivenAnOrderDiscount_WhenApplyToNonOrder_ThenShouldReturnZero()
{
var sut = new OrderDiscount("d", 1);
var line = new Line(new Bike(string.Empty, string.Empty, 1), 1);
Assert.AreEqual(0, sut.Apply(line));
}
public void GivenAnOrderDiscount_WhenApplyToOrder_ThenShouldReturnOrderSubTotalTimesPercentage()
{
var sut = new OrderDiscount("d", 1);
var order = new Order(string.Empty);
order.AddLine(new Line(new Bike(string.Empty, string.Empty, 1), 1));
Assert.AreEqual(order.CalculateSubTotal() * sut.Percentage, sut.Apply(order));
}