public void CartWithOneScrewdriver_TotalIsSalePriceOfScrewdriver()
{
const decimal salePrice = 25.0m;
var screwdriver = new Screwdriver(salePrice);
var cart = new ShoppingCart(new ICartItem[] { screwdriver });
Assert.Equal(salePrice, cart.SaleTotal);
}
public void CartWithCheeseAndScrewdriver_TotalIsSumOfBothItemsSalePrices()
{
var cheese = new Cheese(4.99m);
var driver = new Screwdriver(25.0m);
var cart = new ShoppingCart(new ICartItem[] { driver, cheese });
Assert.Equal(cheese.SalePrice + driver.SalePrice, cart.SaleTotal);
}
public void CartWithMultipleScrewdrivers_TotalIsSumOfScrewdriverSalePrices()
{
var cheapDriver = new Screwdriver(5.0m);
var expensiveDriver = new Screwdriver(50.0m);
var cart = new ShoppingCart(new ICartItem[] { cheapDriver, expensiveDriver });
Assert.Equal(cheapDriver.SalePrice + expensiveDriver.SalePrice, cart.SaleTotal);
}
public void TotalDiscountsForBundle()
{
var cheese = new Cheese(4.5m);
var screwdriver = new Screwdriver(25.0m);
var bundle = new Bundle(cheese, screwdriver, new PercentageDiscount(0.1m));
var cart = new ShoppingCart(new ICartItem[] { bundle });
Assert.Equal((cheese.SalePrice + screwdriver.SalePrice) * 0.1m, cart.SaleTotal);
}
