public void TwoBPromotionApplied()
{
_discountedDoubleBProducts.AddRange(Enumerable.Repeat(new Product("B", 30m), 2));
var discount = _doubleBPromotion.CalculateDiscount(_discountedDoubleBProducts);
discount.ShouldBe(15);
}
public void MixProductPromotionApplied()
{
_discountedCombiProducts.Add(new Product("C", 20m));
_discountedCombiProducts.Add(new Product("D", 15m));
var discount = _mixProductPromotion.CalculateDiscount(_discountedCombiProducts);
discount.ShouldBe(5);
}
public void NotEnoughItemsForOfferToApply()
{
var discount = _tripleAPromotion.CalculateDiscount(_noPromotionProducts);
discount.ShouldBe(0m);
}