public void BatchPriceCalculatedCorrectly(string productsString, decimal expectedTotalPrice)
{
var products = ProductHelper.GetProducts(productsString);
var offer = new BreadAndButterOffer();
var result = offer.Process(products);
Assert.Equal(expectedTotalPrice, result.lineItems.Sum(li => li.Price));
}
public void ReturnsLineItemsAndRemainingProductsForEachFullBatch(string productsString, int expectedLineItemsCount, int expectedRemaining)
{
var products = ProductHelper.GetProducts(productsString);
var offer = new BreadAndButterOffer();
var result = offer.Process(products);
Assert.Equal(expectedLineItemsCount, result.lineItems.Count());
Assert.Equal(expectedRemaining, result.remainingProducts.Count());
}