public void TestInitialize()
{
_items = new Items();
_quantityBasedDiscountItem = new QuantityBasedDiscountItem();
_quantityBasedDiscount = new QuantityBasedDiscount(_quantityBasedDiscountItem, _items);
}
private static void applyAllDiscounts(OrderBase order)
{
Discount quantiyDisount1 = new QuantityBasedDiscount("Buy 3A for 130", 3, 130, "A");
Discount quantiyDisount2 = new QuantityBasedDiscount("Buy 2B for 45", 2, 45, "B");
order.AddDiscount(quantiyDisount1);
order.AddDiscount(quantiyDisount2);
Discount combinedDisount = new CombinedProductsDiscount("BUY C AND D FOR 30 ONLY", 30);
combinedDisount.AddApplicableProducts("C");
combinedDisount.AddApplicableProducts("D");
order.AddDiscount(combinedDisount);
}
public void HandleDiscountForItemB()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
Cart cart = new Cart();
cart.Items = new List <CartItem>();
cart.Items.Add(new CartItem()
{
Quantity = 2,
ProductInfo = new ProductInfo("B", 30)
});
quantityBasedDiscount.HandleDiscount(cart);
Assert.AreEqual(45, cart.TotalPrice);
}
public void HandleDiscountForFiveItemA()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
Cart cart = new Cart();
cart.Items = new List <CartItem>();
cart.Items.Add(new CartItem()
{
Quantity = 5,
ProductInfo = new ProductInfo("A", 50)
});
quantityBasedDiscount.HandleDiscount(cart);
Assert.AreEqual(230, cart.TotalPrice);
}
public void HandleDiscountForNegativeFiveItemA()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
Cart cart = new Cart();
cart.Items = new List <CartItem>();
cart.Items.Add(new CartItem()
{
Quantity = -5,
ProductInfo = new ProductInfo("A", 50)
});
quantityBasedDiscount.HandleDiscount(cart);
// handle negative price before applying promotion
Assert.AreEqual(-250, cart.TotalPrice);
}
public void QuantityBasedDiscount_SetNextRule_ShouldNotFailForNull()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
quantityBasedDiscount.SetNextRule(null);
}
public void QuantityBasedDiscount_ShouldNotFailForEmptyCart()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
quantityBasedDiscount.HandleDiscount(new Cart());
}
public void QuantityBasedDiscount_ShouldNotFailForNull()
{
QuantityBasedDiscount quantityBasedDiscount = new QuantityBasedDiscount();
quantityBasedDiscount.HandleDiscount(null);
}
