public async Task GetDiscountsAsync_WithProductsMeetingRequirement_ShouldReturnCorrectDiscount()
{
//arrange
var buy2ProductId = Guid.NewGuid();
var buy2ProductPrice = 0.65m;
var discountProductId = Guid.NewGuid();
var discountProductPrice = 0.80m;
var discountPercent = 50m;
var mockSpecialOfferRepository = new Mock <IGenericRepository <SpecialOffer> >();
mockSpecialOfferRepository.Setup(m => m.GetAllAsync(It.IsAny <Expression <Func <SpecialOffer, BuyTwoGetOneHalfPriceSpecialOffer> > >()))
.ReturnsAsync(
new List <SpecialOffer> {
new SpecialOffer
{
Name = "SpecialOffer",
Description = "Buy 2 Get One free",
DiscountAssemblyFullName = "Bjss.PriceBasket.Core.Services.BuyTwoGetOneHalfPriceDiscounts, Bjss.PriceBasket.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null",
BuyTwoGetOneHalfPriceSpecialOffer = new BuyTwoGetOneHalfPriceSpecialOffer
{
BuyTwoOfProductId = buy2ProductId,
DiscountedProductId = discountProductId,
DiscountPercent = discountPercent,
SpecialOffer = new SpecialOffer {
Name = "SpecialOffer",
Description = "Buy 2 Get One free"
}
}
}
}
);
var basket = new Basket
{
Items = new List <BasketItem>
{
new BasketItem {
Id = buy2ProductId, Name = "Soup", Price = buy2ProductPrice
},
new BasketItem {
Id = buy2ProductId, Name = "Soup", Price = buy2ProductPrice
},
new BasketItem {
Id = discountProductId, Name = "Bread", Price = discountProductPrice
},
}
};
var buyTwoGetOneHalfPriceDiscounts = new BuyTwoGetOneHalfPriceDiscounts(mockSpecialOfferRepository.Object);
//act
var discounts = await buyTwoGetOneHalfPriceDiscounts.GetDiscountsAsync(basket);
//assert
Assert.AreEqual(1, discounts.Count());
Assert.AreEqual(discounts.Single().DiscountAmount, discountProductPrice / 100 * 50);
}
public async Task GetDiscountsAsync_WithNullBasket_ShouldThrowException()
{
//arrange
var buyTwoGetOneHalfPriceDiscounts = new BuyTwoGetOneHalfPriceDiscounts(null);
//act
await buyTwoGetOneHalfPriceDiscounts.GetDiscountsAsync(null);
//assert
}
public async Task GetDiscountsAsync_WithNoSpecialOffers_ShouldReturnNoDiscounts()
{
//arrange
var buy2ProductId = Guid.NewGuid();
var buy2ProductPrice = 0.65m;
var discountProductId = Guid.NewGuid();
var discountProductPrice = 0.80m;
var mockSpecialOfferRepository = new Mock <IGenericRepository <SpecialOffer> >();
mockSpecialOfferRepository.Setup(m => m.GetAllAsync(It.IsAny <Expression <Func <SpecialOffer, BuyTwoGetOneHalfPriceSpecialOffer> > >()))
.ReturnsAsync(
new List <SpecialOffer>()
);
var basket = new Basket
{
Items = new List <BasketItem>
{
new BasketItem {
Id = buy2ProductId, Name = "Soup", Price = buy2ProductPrice
},
new BasketItem {
Id = buy2ProductId, Name = "Soup", Price = buy2ProductPrice
},
new BasketItem {
Id = discountProductId, Name = "Bread", Price = discountProductPrice
},
}
};
var buyTwoGetOneHalfPriceDiscounts = new BuyTwoGetOneHalfPriceDiscounts(mockSpecialOfferRepository.Object);
//act
var discounts = await buyTwoGetOneHalfPriceDiscounts.GetDiscountsAsync(basket);
//assert
Assert.AreEqual(0, discounts.Count());
}