public void CalculateProductPrice_ProductWithoutPromotion_ShouldBeQuantityTimeUnitPrice()
{
var product = new Product
{
Id = 1,
Name = "t-shirt",
Price = 10,
Promotion = null
};
var actual = sut.CalculateProductPrice(product, 2);
actual.ShouldBe(20);
}
private IEnumerable <CheckoutItem> GetItems(IEnumerable <SelectedProduct> selection, IEnumerable <Product> products)
{
foreach (var product in products.Where(p => selection.Select(sel => sel.Id).Contains(p.Id)))
{
var quantity = selection.FirstOrDefault(s => s.Id == product.Id).Quantity;
yield return(new CheckoutItem
{
Product = product,
Price = priceCalculator.CalculateProductPrice(product, quantity)
});
}
}