internal IPromotion GetManager(string sku)
{
IPromotion promotion = null;
switch (sku.ToUpper())
{
case "A":
promotion = new PromotionA(new A());
break;
case "B":
promotion = new PromotionB(new B());
break;
case "C":
promotion = new PromotionC(new C());
break;
case "D":
promotion = new PromotionD(new D());
break;
default:
break;
}
return(promotion);
}
public void TestMethod1()
{
List <ISKU> ScenarioA = new List <ISKU> {
new skuA(), new skuB(), new skuC()
};
int cost = new PromotionA(ScenarioA).Cost();
Assert.AreEqual(cost, 50);
cost = new PromotionB(ScenarioA).Cost();
Assert.AreEqual(cost, 30);
cost = new PromotionCD(ScenarioA).Cost();
Assert.AreEqual(cost, 20);
}
public void Can_Calculate_Promotional_Group_Discount(int promotionQuantityWhenBought,
int promotionalDiscountOffered,
int numberOfItemsBought,
decimal originalPrice,
decimal expectedPrice)
{
IPromotion promotion = new Promotion("TestPromotion", 1000, promotionQuantityWhenBought, 0, promotionalDiscountOffered);
IPromotionCalculator promotionCalculator = new PromotionB(promotion);
decimal promotionalPrice = promotionCalculator.Calculate(numberOfItemsBought, originalPrice);
string appliedPromotion = promotionCalculator.GetAppliedPromotion();
Assert.Equal(expectedPrice, promotionalPrice);
Assert.Equal($"Buy Groups of {promotionQuantityWhenBought} @ {promotionalDiscountOffered} ", appliedPromotion, true);
}
public IPromotion GetPromoOffer(string productName)
{
IPromotion returnVal = null;
if (productName == "A")
{
returnVal = new PromotionA();
}
else if (productName == "B")
{
returnVal = new PromotionB();
}
return(returnVal);
}