public PromotionsSerializerFacts()
{
var firstProduct = new Product {
Name = "Apple", Price = 1.99, Categories = { "fruit" }
};
var secondProduct = new Product {
Name = "Orange", Price = 1.39, Categories = { "fruit" }
};
var thirdProduct = new Product {
Name = "Celery", Price = 0.99, Categories = { "vegetable" }
};
var onSalePromotion = new OnSalePromotion {
Product = firstProduct, SalePrice = 1.49
};
var groupPromotion = new GroupPromotion {
Product = secondProduct, Quantity = 2, Price = 3
};
var additionalPromotion = new AdditionalPromotion {
Category = "fruit", Percent = 50
};
products = new[] { firstProduct, secondProduct, thirdProduct };
promotions = new IPromotion[] { onSalePromotion, groupPromotion, additionalPromotion };
}
public void OnSalePromotion_WithoutProduct_ShouldNotApplyOnOrder()
{
var order = new Order(new [] { new Item(secondProduct) });
var onSalePromotion = new OnSalePromotion {
Product = firstProduct, SalePrice = 1.49
};
var discounts = onSalePromotion.ApplyTo(order);
Assert.Equal(0, discounts.Count);
}
public void OnSalePromotion_WithProduct_ShouldApplyOnOrder()
{
var order = new Order(new [] { new Item(firstProduct), new Item(secondProduct) });
var onSalePromotion = new OnSalePromotion {
Product = firstProduct, SalePrice = 1.49
};
var discounts = onSalePromotion.ApplyTo(order);
Assert.Equal(1, discounts.Count);
Assert.Equal(order.Items[0], discounts[0].Item);
Assert.Equal(firstProduct.Price - 1.49, discounts[0].Value);
}
public void WhenOneDiscount_ShouldPrintInvoice()
{
var items = new[] { new Item(firstProduct), new Item(secondProduct) };
var order = new Order(items);
var promotion = new OnSalePromotion {
Product = firstProduct, SalePrice = 1.49
};
var orderService = new OrderService();
string printedInvoice = orderService.PrintInvoice(order, new[] { promotion });
Assert.Equal("Apple 1.99\n-0.5Orange 1.39\nTotal 2.88", printedInvoice);
}
