public void FixStateCanInterpretLocalState()
{
var cart = NewCart.CreateCartFromProductSelection(_theUri, null, 1, 1, 9.99m);
cart.CartItems.First().UpdateQuantity(2);
_context.Carts.Attach(cart);
_context.FixState();
Assert.AreEqual(EntityState.Unchanged, _context.Entry(cart).State);
Assert.AreEqual(EntityState.Modified, _context.Entry(cart.CartItems.First()).State);
}