public void total_is_product_of_quantity_by_item_price(string itemCode, double quantity, double unitPrice)
{
var result = priceQuery.FindPrice(itemCode);
var total = cashRegister.Total(result, Quantity.ValueOf(quantity));
Check.That(total).IsEqualTo(Result.Found(Price.ValueOf(quantity * unitPrice)));
}
public void find_the_price_given_an_item_code(string itemCode, double unitPrice)
{
Check.That(priceQuery.FindPrice(itemCode)).IsEqualTo(Result.Found(Price.ValueOf(unitPrice)));
}