public void TestPromotionsByCount()
{
var itemA = new OrderItem {
SkuId = "A", Count = 5, Price = 50
};
var order = new Order();
order.OrderItems.Add(itemA);
order = _promotionFactory.ApplyPromotion(order);
Assert.AreEqual(2, order.OrderItems[0].Count);
Assert.AreEqual(1, order.PromoItems[0].Count);
Assert.AreEqual(130, order.PromoItems[0].Price);
Assert.AreEqual(50, order.OrderItems[0].Price);
}
public void TestForScenarioA()
{
var itemA = _itemFactory.GetItem("A");
itemA.Count = 1;
var itemB = _itemFactory.GetItem("B");
itemB.Count = 1;
var itemC = _itemFactory.GetItem("C");
itemC.Count = 1;
var order = new Order();
order.OrderItems.Add(itemA);
order.OrderItems.Add(itemB);
order.OrderItems.Add(itemC);
order = _promotionFactory.ApplyPromotion(order);
var invoiceAmount = _invoiceFactory.CalculateTotalInvoiceAmount(order);
Assert.AreEqual(100, invoiceAmount);
}