public void ShouldReturnDiscountWhen101ShurikensAndOtherProducts()
{
// Arrange
var basket = new Basket(new DiscountProvider(), new GiftProvider());
var shurikensCount = 101;
for (var i = 0; i < shurikensCount; i++)
{
basket.AddBasketItem(new Product(_shurikensId, "Shurikens", _shurikensPrice));
}
var otherProductPrice = 100;
basket.AddBasketItem(new Product("Some-Id", "Some Product", otherProductPrice));
// Sut
var discountCalculator = new ShurikensDiscountCalculator();
// Act
var discount = discountCalculator.CalculateDiscount(basket);
// Assert
var expectedDiscount = (_shurikensPrice * shurikensCount + otherProductPrice) * 0.3M;
Assert.IsTrue(discount == expectedDiscount, "Discount returned should be 30% of total price. Discount: {0} Expected: {1}", discount, expectedDiscount);
}
public void ShouldReturn0WhenNoShurikens()
{
// Arrange
var basket = new Basket(new DiscountProvider(), new GiftProvider());
// Sut
var discountCalculator = new ShurikensDiscountCalculator();
// Act
var discount = discountCalculator.CalculateDiscount(basket);
// Assert
Assert.IsTrue(discount == 0, "Discount should be 0");
}
public void ShouldReturn0WhenShurikensLess100()
{
// Arrange
var basket = new Basket(new DiscountProvider(), new GiftProvider());
basket.AddBasketItem(new Product(_shurikensId, "Shurikens", _shurikensPrice));
// Sut
var discountCalculator = new ShurikensDiscountCalculator();
// Act
var discount = discountCalculator.CalculateDiscount(basket);
// Assert
Assert.IsTrue(discount == 0, "Discount should be 0");
}