public void Promotion_Is_Not_Applied_When_Products_Has_Invalid_CartItem()
{
int expected = 0;
IPromotionEngine <List <char> > promotionEngine = new PromotionEngine.PromotionEngine();
ICartEngine <List <char> > cartEngine = new CartEngine();
Billing billing = new Billing(promotionEngine, cartEngine);
List <char> orderedProducts = new List <char>
{
'Z'
};
int actual = billing.CalculateTotalPrice(orderedProducts);
Assert.AreEqual(expected, actual);
}
public void Promotion_Is_Not_Applied_On_Products()
{
int expected = 100;
IPromotionEngine <List <char> > promotionEngine = new PromotionEngine.PromotionEngine();
ICartEngine <List <char> > cartEngine = new CartEngine();
Billing billing = new Billing(promotionEngine, cartEngine);
List <char> orderedProducts = new List <char>
{
'A',
'B',
'C'
};
int actual = billing.CalculateTotalPrice(orderedProducts);
Assert.AreEqual(expected, actual);
}
public void Promotion1_only_Applied_On_Products_Eventhough_Multiple_Promotions_Are_Valid()
{
int expected = 195;
IPromotionEngine <List <char> > promotionEngine = new PromotionEngine.PromotionEngine();
ICartEngine <List <char> > cartEngine = new CartEngine();
Billing billing = new Billing(promotionEngine, cartEngine);
List <char> orderedProducts = new List <char>
{
'A',
'A',
'A',
'B',
'C',
'D'
};
int actual = billing.CalculateTotalPrice(orderedProducts);
Assert.AreEqual(expected, actual);
}