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 GroupPromotion_NoProduct_ShouldNotApplyNo()
{
var order = new Order(new [] { new Item(secondProduct) });
var groupPromotion = new GroupPromotion {
Product = firstProduct, Quantity = 2, Price = 3
};
Assert.Equal(0, groupPromotion.ApplyTo(order).Count);
}
public void GroupPromotion_MultipleProducts_ShouldApply()
{
var order = new Order(new [] { new Item(firstProduct), new Item(secondProduct), new Item(firstProduct), new Item(firstProduct), new Item(firstProduct) });
var groupPromotion = new GroupPromotion {
Product = firstProduct, Quantity = 2, Price = 3
};
var discounts = groupPromotion.ApplyTo(order);
var discountValue = firstProduct.Price - 1.5;
Assert.Equal(4, discounts.Count);
Assert.Equal(order.Items[0], discounts[0].Item);
Assert.Equal(discountValue, discounts[0].Value);
Assert.Equal(order.Items[2], discounts[1].Item);
Assert.Equal(discountValue, discounts[1].Value);
Assert.Equal(order.Items[3], discounts[2].Item);
Assert.Equal(discountValue, discounts[2].Value);
Assert.Equal(order.Items[4], discounts[3].Item);
Assert.Equal(discountValue, discounts[3].Value);
}
