public RedirectToRouteResult RemoveFromCart(CartRepository cart, int productId, string returnUrl)
{
Product product = _repo.Products.SingleOrDefault(p => p.ProductID == productId);
if (product != default(Product))
cart.RemoveLine(product);
return RedirectToAction("Index", new { returnUrl });
}
public void Can_Remove_Lines()
{
Product p1 = new Product { Name = "P1", ProductID = 1 };
Product p2 = new Product { Name = "P2", ProductID = 2 };
Product p3 = new Product { Name = "P3", ProductID = 3 };
CartRepository target = new CartRepository();
target.AddItem(p1, 1);
target.AddItem(p2, 2);
target.AddItem(p1, 10);
target.AddItem(p3, 5);
var results = target.CartLineCollections;
Assert.AreEqual(results.Count, 3);
Assert.AreEqual(results[0].Product, p1);
Assert.AreEqual(results[1].Product, p2);
Assert.AreEqual(results[2].Product, p3);
target.RemoveLine(p2);
results = target.CartLineCollections;
Assert.AreEqual(results.Count, 2);
Assert.AreEqual(results[0].Product, p1);
Assert.AreEqual(results[1].Product, p3);
Assert.IsFalse(results.Any(p => p.Product.ProductID == p2.ProductID));
}
