public void ThrowsExceptionGivenOrderCustomerWithNoAddress()
        {
            var customer = _customerBuilder
                           .Id(56)
                           .Address(null)
                           .Build();

            var order = _orderBuilder
                        .Id(0)
                        .Amount(1234)
                        .Customer(customer)
                        .Build();

            Assert.Throws <InvalidCustomerException>(() => _orderService.PlaceOrder(order));
        }