使用MockRestServiceServer时会触发实际实现

Question

我正在使用resttemplate来调用其他休息服务。并为此编写junit。在运行它时返回null表示它没有使用模拟实现

@RunWith(SpringJUnit4ClassRunner.class)
public class OrganizationEmployeeServiceTest {

    @Mock
    private RestTemplate restTemplate;

    @InjectMocks
    private OrganizationEmployeeServiceImpl organizationEmployeeService;

    private MockRestServiceServer mockServer;

    @Before
    public void setUp() {
        mockServer = MockRestServiceServer.createServer(restTemplate);
    }

    @After
    public void tearDown() {
        restTemplate = null;
        organizationEmployeeService = null;
    }

    @Test
    public void testMockCreation() {
        assertNotNull(restTemplate);
    }

    @Test
    public void testGetEmployeesByOrganizationId() throws JsonProcessingException {
        List<Employee> testEmployees = new ArrayList<Employee>();
        Employee employee1 = new Employee();
        employee1.setEmployeeId(11);
        employee1.setName("malav1");
        employee1.setCity("bangalore1");
        employee1.setOrganizationId(29);
        testEmployees.add(employee1);

        Employee employee2 = new Employee();
        employee1.setEmployeeId(12);
        employee1.setName("malav2");
        employee1.setCity("bangalore2");
        employee1.setOrganizationId(29);
        testEmployees.add(employee2);
        ObjectMapper objectMapper = new ObjectMapper();
        String result = objectMapper.writeValueAsString(testEmployees);

        mockServer.expect(requestTo("http://localhost:8080/springjpacontroller/employees/29")).andExpect(method(HttpMethod.GET))
                .andRespond(withSuccess(result, MediaType.APPLICATION_JSON));

        List<Employee> resultEmployees = organizationEmployeeService.getEmployeesByOrganizationId(29);
        assertNotNull(resultEmployees);
        mockServer.verify();
    }
}

服务类方法：

@Autowired
    RestTemplate restTemplate;

    public void setRestTemplate(RestTemplate restTemplate){
        this.restTemplate = restTemplate;
    }

    @Override
    public List<Employee> getEmployeesByOrganizationId(int organizationId) {
        Employee[] employees = restTemplate.getForObject(
                "http://localhost:8080/"+ EMPLOYEE_SERVICE_ENDPOINT + organizationId, Employee[].class);
        return Arrays.asList(employees);
    }

这里运行junit时它给出了断言错误，因为这个雇员结果为空。