public void DeleteItemsFromCart()
{
ShoppingCart cart = new ShoppingCart();
Dictionary<int, int> cartItems = new Dictionary<int,int>();
cartItems.Add(1078,1);
cartItems.Add(1079,2);
context.Setup(p => p.HttpContext.Session[ShoppingCart.CartSessionKey]).Returns(cartItems);
cart.DeleteItem(controllerContext, 1078);
Dictionary<int, int> items = (Dictionary<int, int>)controllerContext.HttpContext.Session[ShoppingCart.CartSessionKey];
Assert.AreEqual(1,items.Count(), "Count is incorrect");
Assert.AreEqual(1079,items.First().Key, "Delete is incorrect");
Assert.AreEqual(2,items[1079], "Item's count is not updated");
}
