public void TestGetCustomers()
        {
            int customerId = 1;
            GetCustomersResponse response = new GetCustomersResponse();

            response.Customers.Add(new CustomerListDTO()
            {
                Id = customerId
            });

            Expect.Once.On(service).Method("GetCustomersByCriteria").Will(Return.Value(response));
            IList <CustomerListDTO> customers = serviceFacade.GetCustomersByCity("FakeCity");

            Assert.AreEqual(1, customers.Count);
            Assert.AreEqual(customers.First().Id, customerId);

            Expect.Once.On(service).Method("GetCustomersByCriteria").Will(Return.Value(response));
            customers = serviceFacade.GetCustomersByName("FAkeName");
            Assert.AreEqual(1, customers.Count);
            Assert.AreEqual(customers.First().Id, customerId);

            Expect.Once.On(service).Method("GetCustomersByCriteria").Will(Return.Value(response));
            customers = serviceFacade.GetAllCustomers();
            Assert.AreEqual(1, customers.Count);
            Assert.AreEqual(customers.First().Id, customerId);
        }