public void GivenProductsAddedWhenCalculatingTotalWithOffersThenOfferAppliedToTotal()
{
var weightProduct = new WeightProduct {
Name = "Gala Apple", Price = 10
};
var quantityProduct = new QuantityProduct {
Name = "Lucky Stars 500g", Price = 399
};
var quantityProduct2 = new WeightProduct {
Name = "Chocolate", Price = 50
};
var offer1 = Substitute.For <IOffer>();
offer1.ApplyOffer(quantityProduct, 2).Returns(399);
var offer2 = Substitute.For <IOffer>();
offer2.ApplyOffer(weightProduct, 9).Returns(67.5m);
var currentOffers = new Dictionary <string, IOffer>
{
{ quantityProduct.Name, offer1 },
{ weightProduct.Name, offer2 }
};
_cashRegister.AddProduct(weightProduct, 9);
_cashRegister.AddProduct(quantityProduct, 2);
_cashRegister.AddProduct(quantityProduct2, 5);
var total = _cashRegister.CalculateTotal(null, currentOffers);
Assert.That(total, Is.EqualTo(716.5m));
}
public void GivenProductNotAddedWhenAddingQuantityProductThenProductShouldBeAdded()
{
var product = new QuantityProduct {
Name = "Lucky Stars 500g"
};
_cashRegister.AddProduct(product, 2);
Assert.That(_cashRegister.Products[product.Name].Quantity, Is.EqualTo(2));
}
public void When75PercentOffApplyOfferCalledThenTotalPriceReduced()
{
var product = new QuantityProduct {
Price = 399
};
var offer = new Seventy5PercentOff();
var totalPrice = offer.ApplyOffer(product, 1);
Assert.That(totalPrice, Is.EqualTo(99.75m));
}
public void GivenProductQuantitiesWhenBogogApplyOfferCalledThenTotalPriceReduced(int quantity, int expectedPrice)
{
var product = new QuantityProduct {
Price = 10
};
var bogof = new BuyOneGetOneFreeOffer();
var totalPrice = bogof.ApplyOffer(product, quantity);
Assert.That(totalPrice, Is.EqualTo(expectedPrice));
}
public void GivenProductsAddedWhenCalculatingTotalThenTotalReturned()
{
var weightProduct = new WeightProduct {
Name = "Gala Apple", Price = 49
};
var quantityProduct = new QuantityProduct {
Name = "Lucky Stars 500g", Price = 399
};
_cashRegister.AddProduct(weightProduct, 100);
_cashRegister.AddProduct(quantityProduct, 2);
var total = _cashRegister.CalculateTotal(null, null);
Assert.That(total, Is.EqualTo(5698));
}
public void GivenProductsAddedWhenCalculatingTotalWithCouponThenDiscountAppliedToTotal()
{
var weightProduct = new WeightProduct {
Name = "Gala Apple", Price = 10
};
var quantityProduct = new QuantityProduct {
Name = "Lucky Stars 500g", Price = 3
};
_cashRegister.AddProduct(weightProduct, 9);
_cashRegister.AddProduct(quantityProduct, 3);
var coupon = Substitute.For <ICoupon>();
coupon.ApplyDiscount(99).Returns(50);
var total = _cashRegister.CalculateTotal(coupon, null);
Assert.That(total, Is.EqualTo(50));
}
