public void TestGetCustomer()
        {
            int customerId = 1;
            GetCustomerResponse response = new GetCustomerResponse();

            response.Customer = new CustomerDTO()
            {
                Id = customerId
            };

            Expect.Once.On(service).Method("GetCustomerById").Will(Return.Value(response));
            CustomerDTO customer = serviceFacade.GetCustomerById(customerId);

            Assert.AreEqual(customer.Id, customerId);
        }