public void AddToBasketTest(string[] productIds, int quantity, int expectedBasketItemCount, decimal expectedBasketTotalPrice)
{
Basket actual = null;
foreach (string productId in productIds)
{
Product product = _products.Find(x => x.ProductId == productId);
actual = _checkoutService.AddToBasket(product, quantity);
}
Assert.AreEqual(expectedBasketTotalPrice, actual.BasketTotalPrice);
Assert.AreEqual(expectedBasketItemCount, actual.Items.Count);
}
