模拟用于单元测试的请求实体调用

Question

我想模拟请求实体和响应以测试控制器方法上的方法，此代码已由另一个开发人员编写，我应该使用mockito对其进行测试。我试图模拟请求实体值和respionse实体值，但它不起作用，当我尝试调试时，我得到一个反射错误    public class InquiryController {private static final Logger log =     LoggerFactory.getLogger(InquiryController.class);@Autowiredprivate InquiryProperties inquiryProperties;@Autowiredprivate InquiryService inquiryService;@AutowiredRestTemplate restTemplate;public static int count = 0;@Beanprivate RestTemplate getRestTemplate() {    return new RestTemplate();}    @PostMapping(value = "/endCustomer", produces = { MediaType.APPLICATION_JSON_VALUE }, consumes = {        MediaType.APPLICATION_JSON_VALUE })public ResponseEntity<List<EndCustomerDTO>> endCustomer(@RequestBody CustomerInfo customerInfo)        throws IOException, JSONException {    log.info("### InquiryController.endCustomer() ===>");    List<EndCustomerDTO> endCustomerDTOs = null;    try {        //RestTemplate restTemplate = new RestTemplate();        RequestEntity<CustomerInfo> body = RequestEntity.post(new URI(inquiryProperties.getEndCustomer()))                .accept(MediaType.APPLICATION_JSON).body(customerInfo);        ResponseEntity<List<EndCustomerDTO>> response = restTemplate.exchange(body,                new ParameterizedTypeReference<List<EndCustomerDTO>>() {                });        endCustomerDTOs = (response != null ? response.getBody() : new ArrayList<EndCustomerDTO>());    } catch (RestClientException | URISyntaxException e) {        log.error("InquiryController.endCustomer()" + e.getMessage());    }    log.info("### END InquiryController.endCustomer()  ===>");    if (null == endCustomerDTOs) {        return new ResponseEntity<List<EndCustomerDTO>>(new ArrayList<EndCustomerDTO>(), HttpStatus.OK);    }    return new ResponseEntity<List<EndCustomerDTO>>(endCustomerDTOs, HttpStatus.OK);}

Answer 1

这是因为在执行 REST 调用时，实例未通过 注入。您需要在组件类中声明 的方法，该方法在应用程序启动期间或换句话说，在组件扫描期间进行扫描。从而可用于 .RestTemplateSpring IOCgetRestTemplaterestTemplateautowire




Answer 2

按照@chrylis建议将配置与控制器分离后，您可以像这样继续操作。

您必须尝试模拟 RequestEntity.post 方法。请注意，它是一个静态方法，其模拟方式与通常的公共实例方法略有不同。为此，您需要使用PowerMockito，因为Mockito不会这样做。

在 pom 中添加依赖项，如下所示：

<dependency>

    <groupId>org.powermock</groupId>

    <artifactId>powermock-module-junit4</artifactId>

    <version>1.6.5</version>

    <scope>test</scope>

</dependency>

<dependency>

    <groupId>org.powermock</groupId>

    <artifactId>powermock-api-mockito</artifactId>

    <version>1.6.5</version>

    <scope>test</scope>

</dependency>

然后用 注释测试类，如下所示：@RunWith@PrepareForTest

@RunWith(PowerMockRunner.class)

@PrepareForTest({RequestEntity.class})

public class TestClass {

}

和模拟 post 方法，如下所示：

PowerMockito.mockStatic(RequestEntity.class);  when(RequestEntity.post(any(URI.class))).thenReturn(getRequestEntityResponseBody());

private RequestEntity< CustomerInfo > getRequestEntityResponseBody(){

 //code

}

更新

CustomerInfo customerInfo = new CustomerInfo();

HttpHeaders responseHeaders = new HttpHeaders();

responseHeaders.set("MyResponseHeader", "MyValue");

RequestEntity<CustomerInfo> customerInfoRequestEntity = new ResponseEntity<CustomerInfo>(customerInfo, responseHeaders, HttpStatus.OK);

PowerMockito.mockStatic(RequestEntity.class);

when(RequestEntity.post(any(URI.class))).thenReturn(customerInfoRequestEntity);