public void AppliesNoDiscount_ForNonApplicableProduct()
{
// Arrange
var sut = new PercentageOffDiscount("Apples", 0.10m);
var _productsInCart = new List <ProductInCart>()
{
new ProductInCart()
{
Product = new Product("Milk", 1.30M), Quantity = 1
}
};
// Act
var result = sut.ApplyDiscount(_productsInCart);
// Assert
Assert.False(result.Any());
}
public void AppliesDiscount_ForMoreThanOneApplicableProduct()
{
// Arrange
var sut = new PercentageOffDiscount("Apples", 0.10m);
var _productsInCart = new List <ProductInCart>()
{
new ProductInCart()
{
Product = new Product("Apples", 1.00M), Quantity = 2
}
};
// Act
var result = sut.ApplyDiscount(_productsInCart);
// Assert
Assert.Single(result);
Assert.Equal(.20M, result.First().DiscountAmount);
}
public void Can_Add_Items_To_An_Order()
{
// create the cart
Order order = new Order(new Member("Chev"));
// add items to the cart
Product hat = new Product("Cap", 110m);
order.AddLineItem(hat, 5);
Product race = new Product("Ticket", 90m);
order.AddLineItem(race, 1);
// add discounts
Discount percentageOff = new PercentageOffDiscount("10% off all items", 0.10m);
percentageOff.CanBeUsedInJuntionWithOtherDiscounts = false;
order.AddDiscount(percentageOff);
Discount spendXgetY = new SpendMoreThanXGetYDiscount("Spend more than R100 get 10% off", 100m, 0.1m);
spendXgetY.SupercedesOtherDiscounts = true;
order.AddDiscount(spendXgetY);
Discount buyXGetY = new BuyXGetYFree("Buy 4 hats get 2 hat free", new List <Product> {
hat
}, 4, 2);
buyXGetY.CanBeUsedInJuntionWithOtherDiscounts = false;
buyXGetY.SupercedesOtherDiscounts = true;
order.AddDiscount(buyXGetY);
// display the cart contents
foreach (LineItem lineItem in order.LineItems)
{
Console.WriteLine("Product: {0}\t Price: {1:c}\t Quantity: {2} \t Subtotal: {4:c} \t Discount: {3:c} \t| Discounts Applied: {5}", lineItem.Product.Name, lineItem.Product.Price, lineItem.Quantity, lineItem.DiscountAmount, lineItem.Subtotal, lineItem.Discounts.Count);
}
}
private static Cart LoadCart()
{
// create the cart
Cart cart = new Cart(new Member("Chev"));
// add items to the cart
Product hat = new Product("Cap", 110m);
cart.AddLineItem(hat, 5);
var race = new Product("Ticket", 90m);
cart.AddLineItem(race, 1);
// add discounts
Discount percentageOff = new PercentageOffDiscount("10% off all items", 0.10m);
percentageOff.CanBeUsedInJuntionWithOtherDiscounts = false;
cart.AddDiscount(percentageOff);
Discount spendXgetY = new SpendMoreThanXGetYDiscount("Spend more than R100 get 10% off", 100m, 0.1m);
spendXgetY.SupercedesOtherDiscounts = true;
cart.AddDiscount(spendXgetY);
Discount buyXGetY = new BuyXGetYFree("Buy 4 hats get 2 hat free", new List <Product> {
hat
}, 4, 2)
{
CanBeUsedInJuntionWithOtherDiscounts = false,
SupercedesOtherDiscounts = true
};
cart.AddDiscount(buyXGetY);
return(cart);
}
