public void TestAllOffersHaveAssociatedGoodsItems()
{
var config = new PriceCalculatorConfiguration();
var goods = config.AvailableGoodsItems;
var offers = config.AvailableOffers;
foreach (var offer in offers)
{
var goodsItem = goods.SingleOrDefault(c => c.Name == offer.GoodsItemName);
Assert.NotNull(goodsItem, $"Offer is for goods item {offer.GoodsItemName} which does not exist");
}
}
public void TestScenarioForWhenDiscountAmountIsOver1Pound()
{
var priceConfiguration = new PriceCalculatorConfiguration()
{
AvailableGoodsItems = new List <GoodsItem>()
{
new GoodsItem("TestApples", 99.00m)
},
AvailableOffers = new List <Offer>()
{
new Offer("TestApples", new PercentageDiscount(99))
}
};
var calculator = new global::PriceCalculator.PriceCalculator(priceConfiguration);
var basket = calculator.GetCompletedBasket(new string[] { "TestApples" });
Assert.AreEqual(99m, basket.SubTotal, "Incorrect value for subtotal");
Assert.AreEqual(0.99m, basket.Total, "Incorrect value for total");
Assert.AreEqual(1, basket.Messages.Count, "Incorrect count for messages");
Assert.AreEqual("TestApples 99% off: -�.01", basket.Messages[0]);
}
public void TestOffersHaveImplementedCorrectMethod()
{
var config = new PriceCalculatorConfiguration();
var goods = config.AvailableGoodsItems;
var offers = config.AvailableOffers;
foreach (var offer in offers)
{
if (offer.Discount.DiscountType == DiscountType.SingleItem)
{
offer.Discount.GetDiscount(new BasketItem(goods[0], offer.Discount));
Assert.Throws <NotImplementedException>(() =>
offer.Discount.GetGroupDiscount(new BasketItem(goods[0], offer.Discount),
new List <BasketItem>()), $"Exception was not thrown when expected for offer {offer.Discount.GetType().Name} for goods item {offer.GoodsItemName}");
}
else if (offer.Discount.DiscountType == DiscountType.GroupItem)
{
Assert.Throws <NotImplementedException>(() => offer.Discount.GetDiscount(new BasketItem(goods[0], offer.Discount))
, $"Exception was not thrown when expected for offer {offer.Discount.GetType().Name} for goods item {offer.GoodsItemName}");
offer.Discount.GetGroupDiscount(new BasketItem(goods[0], offer.Discount), new List <BasketItem>());
}
}
}
public void TestThereAreNoDuplicateGoods()
{
var config = new PriceCalculatorConfiguration();
Assert.AreEqual(config.AvailableGoodsItems.Count, config.AvailableGoodsItems.Select(c => c.Name).Distinct().Count(), "There are non distinct available goods items");
}
public void TestThereAreAvailableGoodsItems()
{
var config = new PriceCalculatorConfiguration();
Assert.Greater(config.AvailableGoodsItems.Count, 0, "There are no goods available");
}
