Question

我正在尝试为rest api创建mockito测试运行下面是控制器类，然后是模拟测试，我正在尝试执行，但问题是它仍然调用实际的rest api而不是模拟它，

1）控制器类

public void sendData(ID id, String xmlString, Records record) throws  ValidationException{
        ClientHttpRequestFactory requestFactory = new
                HttpComponentsClientHttpRequestFactory(HttpClients.createDefault());
        RestTemplate restTemplate = new RestTemplate(requestFactory);

        List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
        messageConverters.add(new StringHttpMessageConverter(Charset.forName("UTF-8")));

        restTemplate.setMessageConverters(messageConverters);

        MultiValueMap<String,String> header = new LinkedMultiValueMap<>();
        header.add("x-api-key",api_key);
        header.add("Content-Type",content_type);
        header.add("Cache-Control",cache_control);
        HttpEntity<String> request = new HttpEntity<>(xmlString, header);

        try {
            restTemplate.postForEntity(getUri(id,record), request, String.class);
        }catch (RestClientResponseException e){
            throw new ValidationException("Error occurred while sending a file to some server "+e.getResponseBodyAsString());
        }

    }

2）测试类

     @RunWith(MockitoJUnitRunner.class)
        public class Safe2RestControllerTest {
            private MockRestServiceServer server;
            private RestTemplate restTemplate;
            private restControllerClass serviceToTest;

         @Before
         public void init(){
         //some code for initialization of the parameters used in controller class    

         this.server = MockRestServiceServer.bindTo(this.restTemplate).ignoreExpectOrder(true).build();
         }

          @Test
            public void testSendDataToSafe2() throws ValidationException, URISyntaxException {

            //some code here when().then()

            String responseBody = "{\n" +
                        "    \"responseMessage\": \"Validation succeeded, message 
                             accepted.\",\n" +
                        "    \"responseCode\": \"SUCCESS\",\n" +
                        "    2\"responseID\": \"627ccf4dcc1a413588e5e2bae7f47e9c::0d86869e-663a-41f0-9f4c-4c7e0b278905\"\n" +
                        "}";

           this.server.expect(MockRestRequestMatchers.requestTo(uri))
          .andRespond(MockRestResponseCreators.withSuccess(responseBody, 
           MediaType.APPLICATION_JSON));

            serviceToTest.sendData(id, xmlString, record);
            this.server.verify();
            }
        }

我应该如何继续，任何建议都将受到赞赏。

Answer 1

Spring的MVC测试设备使这很容易。

@RunWith(SpringRunner.class)
@WebMvcTest(controllers = YourController.class)
public class YourControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void testSendDataToSafe2() throws Exception {
        // prepare e.g. create the requestBody

        MvcResult mvcResult = mockMvc.perform(post(uri).contentType(MediaType.APPLICATION_JSON).content(requestBody))
            .andExpect(status().isOk())
            .andReturn();

        Assert.assertEquals(responseBody, mvcResult.getResponse().getContentAsString());
    }
}

有关详细信息，请参阅标题为“添加单元测试”here的部分和/或标题为“自动配置的Spring MVC测试”的部分{ {3}}

你的问题还指出“问题是它仍在调用实际的休息api”所以我猜测，除了调用你的控制器是一个测试上下文之外，你想要模拟掉那个控制器的一些行为。具体来说，您要模拟该控制器中使用的RestTemplate实例。如果是这样，则必须更改控制器实现，以使RestTemplate实例成为@Autowired类成员。然后你会在你的测试用例中声明一个模拟器，如下所示：

@RunWith(SpringRunner.class)
@WebMvcTest(controllers = YourController.class)
public class YourControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private RestTemplate restTemplate;

    @Test
    public void testSendDataToSafe2() throws Exception {
        // prepare e.g. create the requestBody

        // tell your mocked RestTemplate what to do when it is invoked within the controller
        Mockito.when(restTemplate.postForEntity(..., ..., ...)).thenReturn(...);

        MvcResult mvcResult = mockMvc.perform(post(uri).contentType(MediaType.APPLICATION_JSON).content(requestBody))
            .andExpect(status().isOk())
            .andReturn();

        Assert.assertEquals(responseBody, mvcResult.getResponse().getContentAsString());
    }
}

以上代码适用于spring-test:4.3.10.RELEASE。

如何模拟客户端休息服务

1 个答案: