//scenation A - 3 * A = 130 ;5 * B = 45 + 45 + 30 ;1 * C ;1 * D = 30
public void TestPromoCodeScenarioC()
{
decimal totalBillAmount = 0;
promotionEngineObj = new PromotionEngine();
var inputData = CartData.PreparePromotionData2();
var promotionCodeData = CartData.PreparePromotionCodeData();
totalBillAmount = promotionEngineObj.ApplyPromotionCode(inputData.CartItems, promotionCodeData);
Assert.AreEqual(280, totalBillAmount);
}