首先，我尝试为远程服务编写单元测试以获取天气并使用restTemplate，然后实现ClientHttpRequestInterceptor以获得远程请求和&&远程响应以进行记录，现在我尝试模拟restTemplate编写单元测试并得到以下错误
org.mockito.exceptions.misusing.UnfinishedStubbingException:
Unfinished stubbing detected here:
-> at com.unittest.weather.forcast.service.WeatherRemoteServiceTest.testRetrieveWeather(WeatherRemoteServiceTest.java:55)
E.g. thenReturn() may be missing.
Examples of correct stubbing:
when(mock.isOk()).thenReturn(true);
when(mock.isOk()).thenThrow(exception);
doThrow(exception).when(mock).someVoidMethod();
Hints:
1. missing thenReturn()
2. you are trying to stub a final method, which is not supported
3. you are stubbing the behaviour of another mock inside before 'thenReturn' instruction is completed
at com.unittest.weather.forcast.service.WeatherRemoteServiceTest.testRetrieveWeather(WeatherRemoteServiceTest.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.mockito.internal.runners.DefaultInternalRunner$1$1.evaluate(DefaultInternalRunner.java:44)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:74)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:80)
at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)
at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:40)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:80)
at org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:71)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229)
at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197)
at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:137)
at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:89)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)
```js
@RunWith(MockitoJUnitRunner.class)
public class WeatherRemoteServiceTest {
@Mock CustomResttemplate restTemplate;
@Mock WeatherRemoteUtilies weatherUtilies;
@InjectMocks WeatherRemoteService weatherRemote;
@Before
public void setUp() throws Exception {
@Test
public void testRetrieveWeather() {
MultiValueMap<String, String>multiValue=new LinkedMultiValueMap<>();
RestTemplate objRestTemplate=new RestTemplate();
Mockito.when(weatherUtilies.buildRequestParams(Mockito.anyString()))
.thenReturn(multiValue);
doReturn(objRestTemplate).when(restTemplate).buildRestTemplate();
ResponseEntity<String> responseEntity = new ResponseEntity<String>("sampleBodyString", HttpStatus.OK);
doReturn(responseEntity).when(restTemplate.buildRestTemplate()).exchange(
Matchers.anyString(),
Matchers.any(HttpMethod.class),
Matchers.<HttpEntity<?>> any(),
Matchers.<Class<String>> any()
assertEquals(weatherRemote.retrieveWeather("ciaro").getStatusCode(), HttpStatus.OK);
这是业务逻辑本身的代码
```js
@Service
public class WeatherRemoteService {
private final Logger logger= LoggerFactory.getLogger(this.getClass());
@Value("${openweather.url}")
private String url;
@Autowired
private WeatherRemoteUtilies weatherUtilies;
@Autowired
private CustomResttemplate customRestTemplate;
public ResponseEntity<?> retrieveWeather(String city) {
logger.info(Constants.CLASS_NAME+this.getClass().getName()+Constants.METHOD_NAME+new Object() {}.getClass().getEnclosingMethod().getName());
logger.debug(Constants.METHOD_ARGUMENTS+city);
RestTemplate restRequest= customRestTemplate.buildRestTemplate();
HttpHeaders headers= new HttpHeaders();
headers.set("Accept",MediaType.APPLICATION_JSON_UTF8_VALUE);
UriComponentsBuilder uri= UriComponentsBuilder.fromUriString(url).
path("/data/2.5/weather")
.queryParams(weatherUtilies.buildRequestParams(city));
HttpEntity<String>entity= new HttpEntity<>(headers);
ResponseEntity<String>WeatherResponse=restRequest.exchange(uri.toUriString(), HttpMethod.GET, entity, String.class);
logger.info(Constants.END_METHOD);
return WeatherResponse;
RestTemplateInterceptor的代码
```js
public class RestTemplateInterceptor implements ClientHttpRequestInterceptor {
private final Logger logger =LoggerFactory.getLogger(this.getClass());
@Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
throws IOException {
logRequest(request, body);
ClientHttpResponse httpResponse= execution.execute(request, body);
logResponse(httpResponse);
return httpResponse;
private void logRequest(HttpRequest request, byte[] body) throws IOException {
logger.info(Constants.START_REMOTE_REQUEST);
logger.info("URI :{}", request.getURI().toString());
logger.info("Method :{}", request.getMethod().toString());
logger.info("Headers :{}", request.getHeaders().toString());
logger.info("Request body :{}", new String(body,"UTF-8").toString());
logger.info(Constants.END_REMOTE_REQUEST);
private void logResponse(ClientHttpResponse response) throws IOException {
logger.info(Constants.START_REMOTE_RESPONSE);
logger.info("Status code :{}", response.getStatusCode().toString());
logger.info("Status text :{}", response.getStatusText().toString());
logger.info("Headers :{}", response.getHeaders().toString());
logger.info("Response body :{}", StreamUtils.copyToString(response.getBody(), Charset.defaultCharset()));
logger.info(Constants.END_REMOTE_RESPONSE);
然后使用以下代码在RestTemplate工厂上设置setInterceptor
```js
public class CustomResttemplate {
public RestTemplate buildRestTemplate() {
SimpleClientHttpRequestFactory simpleFactory= new SimpleClientHttpRequestFactory();
simpleFactory.setOutputStreaming(false);
ClientHttpRequestFactory factory = new BufferingClientHttpRequestFactory(simpleFactory);
RestTemplate restTemplate= new RestTemplate(factory);
restTemplate.setInterceptors(Collections.singletonList(new RestTemplateInterceptor()));
return restTemplate;
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