public void ReturnsLineItemForEachProduct(string productsString, int expectedCount)
{
var products = ProductHelper.GetProducts(productsString);
var offer = new NoOffer();
var result = offer.Process(products);
Assert.Equal(expectedCount, result.lineItems.Count());
}
public void ResultMatchesProduct()
{
var offer = new NoOffer();
var milk = Product.Milk;
var result = offer.Process(new[] { milk }).lineItems.First();
Assert.Equal(milk.Name, result.Name);
Assert.Equal(milk.Price, result.Price);
Assert.Contains(milk, result.Items);
}