30DaysOfTDD_Day17_Part1

        [Test]
        public void WhenUserPlacesOrderWithItemThatIsInInventoryOrderFulfillmentWorkflowShouldComplete()
        {
            //Arrange
            var shoppingCart = new ShoppingCart();
            shoppingCart.Items.Add(new ShoppingCartItem { ItemId = Guid.NewGuid(), Quantity = 1 });
            var customerId = Guid.NewGuid();
            var customer = new Customer { Id = customerId };

            Mock.Arrange(() => _customerService.GetCustomer(customerId)).Returns(customer).OccursOnce();
        }