注入模拟Spring WebServiceTemplate以返回预定义值

Question

我们的web服务在他们的末端更新了。我使用Spring服务更新了我们的客户端代码。

问题是单元测试返回失败，因为注入的模拟WebServiceTemplate返回null。

我的问题是“有什么方法可以使返回的值具有预定义的价值吗？”

@Configuration
public class TestConfig {
    @Bean
    public WebServiceTemplate webServiceTemplate() {
        WebServiceTemplate webServiceTemplate = mock(WebServiceTemplate.class);
        return webServiceTemplate;
    }

    @Bean
    public TheServiceClient client() {
        return new TheServiceClient();
    }

}

public class TheServiceClient {
    @Autowired
    private WebServiceTemplate webServiceTemplate;

    public TheResponse getResponse(TheRequest request) {
        // logic handles the request need to be tested
        JAXBElement<?> element = (JAXBElement<?>) webServiceTemplate.marshalSendAndReceive(request);
        return element.getResponse();
    }
}

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = TestConfig.class)
public class IdalClientTest {
    @Autowired
    private TheServiceClient client;

    @Test
    public void testGetResponse() {
        TheRequest request = new TheRequest();
        request.setters();

        TheResponse response = client.getResponse(request);
        assertThat(response.getSucess()).isTrue();
    }
}

Answer 1

因为您没有将模拟的WebServiceTemplate注入到TheServiceClient。

你应该这样做

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = TestConfig.class)
public class IdalClientTest {

    @InjectMocks
    private TheServiceClient client;

    @Mock
    WebServiceTemplate webServiceTemplate;

    @Mock
    JAXBElement jaxBElement;

    @Before
     public void setUp() {
        MockitoAnnotations.initMocks(this);
        when(webServiceTemplate.marshalSendAndReceive(any(TheRequest.class))).thenReturn(jaxBElement);
     // You can create a TheResponse object with success = true;          
   when(jaxBElement.getResponse()).thenReturn(dummyTheResponseObject);

    }
    @Test
    public void testGetResponse() {
        TheRequest request = new TheRequest();
        request.setters();

        TheResponse response = client.getResponse(request);
        assertThat(response.getSucess()).isTrue();
    }
}

您不需要配置类。

理想的方法是使用构造器注入代替字段注入。像这样

public class TheServiceClient {

private final WebServiceTemplate webServiceTemplate;

@Autowired
public TheServiceClient(final WebServiceTemplate webServiceTemplate) {
    this.webServiceTemplate = webServiceTemplate;  
 }
    .......
}

然后，在您的测试类中而不是在InjectMocks中，您可以这样做

private TheServiceClient client;

@Mock
WebServiceTemplate webServiceTemplate;


@Before
 public void setUp() {
    MockitoAnnotations.initMocks(this);
    client = new TheServiceClient(webServiceTemplate);
       .............
}
 ................