Question

我有以下简单的控制器来捕获任何意外的异常：

@ControllerAdvice
public class ExceptionController {

    @ExceptionHandler(Throwable.class)
    @ResponseStatus(value = HttpStatus.INTERNAL_SERVER_ERROR)
    @ResponseBody
    public ResponseEntity handleException(Throwable ex) {
        return ResponseEntityFactory.internalServerErrorResponse("Unexpected error has occurred.", ex);
    }
}

我正在尝试使用Spring MVC Test框架编写集成测试。这就是我到目前为止所做的：

@RunWith(MockitoJUnitRunner.class)
public class ExceptionControllerTest {
    private MockMvc mockMvc;

    @Mock
    private StatusController statusController;

    @Before
    public void setup() {
        this.mockMvc = MockMvcBuilders.standaloneSetup(new ExceptionController(), statusController).build();
    }

    @Test
    public void checkUnexpectedExceptionsAreCaughtAndStatusCode500IsReturnedInResponse() throws Exception {

        when(statusController.checkHealth()).thenThrow(new RuntimeException("Unexpected Exception"));

        mockMvc.perform(get("/api/status"))
                .andDo(print())
                .andExpect(status().isInternalServerError())
                .andExpect(jsonPath("$.error").value("Unexpected Exception"));
    }
}

我在Spring MVC基础结构中注册了ExceptionController和一个模拟StatusController。在测试方法中，我设置了一个期望从StatusController抛出异常。

抛出异常，但ExceptionController没有处理它。

我希望能够测试ExceptionController获取异常并返回适当的响应。

有关为什么这不起作用以及我应该如何进行此类测试的任何想法？

感谢。

Answer 1

我刚才遇到了同样的问题，以下内容适用于我：

@Before
public void setup() {
    this.mockMvc = MockMvcBuilders.standaloneSetup(statusController)
         .setControllerAdvice(new ExceptionController())
        .build();
}

Answer 2

此代码将添加使用异常控制建议的功能。

@Before
public void setup() {
    this.mockMvc = standaloneSetup(commandsController)
        .setHandlerExceptionResolvers(withExceptionControllerAdvice())
        .setMessageConverters(new MappingJackson2HttpMessageConverter()).build();
}

private ExceptionHandlerExceptionResolver withExceptionControllerAdvice() {
    final ExceptionHandlerExceptionResolver exceptionResolver = new ExceptionHandlerExceptionResolver() {
        @Override
        protected ServletInvocableHandlerMethod getExceptionHandlerMethod(final HandlerMethod handlerMethod,
            final Exception exception) {
            Method method = new ExceptionHandlerMethodResolver(ExceptionController.class).resolveMethod(exception);
            if (method != null) {
                return new ServletInvocableHandlerMethod(new ExceptionController(), method);
            }
            return super.getExceptionHandlerMethod(handlerMethod, exception);
        }
    };
    exceptionResolver.afterPropertiesSet();
    return exceptionResolver;
}

Answer 3

由于您使用的是独立设置测试，因此需要手动提供异常处理程序。

mockMvc= MockMvcBuilders.standaloneSetup(adminCategoryController).setSingleView(view)
        .setHandlerExceptionResolvers(getSimpleMappingExceptionResolver()).build();

几天前我遇到了同样的问题，你可以在这里看到我的问题和解决方案Spring MVC Controller Exception Test

希望我的回答可以帮助你

Answer 4

使用Spring MockMVC将servletContainer模拟到可以在单元测试套件中包含任何请求过滤或异常处理测试的位置。

您可以使用以下方法配置此设置：

给定自定义RecordNotFound异常......

@ResponseStatus(value=HttpStatus.NOT_FOUND, reason="Record not found") //
public class RecordNotFoundException extends RuntimeException {

    private static final long serialVersionUID = 8857378116992711720L;

    public RecordNotFoundException() {
        super();
    }

    public RecordNotFoundException(String message) {
        super(message);
    }
}

...和RecordNotFoundExceptionHandler

@Slf4j
@ControllerAdvice
public class BusinessExceptionHandler {

    @ExceptionHandler(value = RecordNotFoundException.class)
    public ResponseEntity<String> handleRecordNotFoundException(
            RecordNotFoundException e,
            WebRequest request) {
         //Logs
        LogError logging = new LogError("RecordNotFoundException",
                HttpStatus.NOT_FOUND, 
                request.getDescription(true));
        log.info(logging.toJson());

        //Http error message
        HttpErrorResponse response = new HttpErrorResponse(logging.getStatus(), e.getMessage());
        return new ResponseEntity<>(response.toJson(),
                HeaderFactory.getErrorHeaders(),
                response.getStatus());
    }
   ...
}

配置定制的测试上下文：设置@ContextConfiguration以指定测试所需的类。将Mockito MockMvc设置为servlet容器模拟器并设置测试夹具和依赖项。

 @RunWith(SpringRunner.class)
@ContextConfiguration(classes = {
    WebConfig.class,
    HeaderFactory.class,
})
@Slf4j
public class OrganisationCtrlTest {

    private MockMvc mvc;

    private Organisation coorg;

    @MockBean
    private OrganisationSvc service;

    @InjectMocks
    private OrganisationCtrl controller = new OrganisationCtrl();

    //Constructor
    public OrganisationCtrlTest() {
    }
   ....

配置模拟MVC＆＃34; servlet模拟器＆＃34; ：在上下文中注册处理程序bean并构建mockMvc模拟器（注意：有两种可能的配置：standaloneSetup或webAppContextSetup;参考documentation）。构建器正确地实现了构建器模式，因此您可以在调用build（）之前链接异常解析器和处理程序的配置命令。

    @Before
    public void setUp() {
        final StaticApplicationContext appContext = new StaticApplicationContext();
        appContext.registerBeanDefinition("BusinessExceptionHandler",
                new RootBeanDefinition(BusinessExceptionHandler.class, null, null));

//InternalExceptionHandler extends ResponseEntityExceptionHandler to //handle Spring internally throwned exception
        appContext.registerBeanDefinition("InternalExceptionHandler",
                new RootBeanDefinition(InternalExceptionHandler.class, null,
                        null));
        MockitoAnnotations.initMocks(this);
        mvc = MockMvcBuilders.standaloneSetup(controller)
                .setHandlerExceptionResolvers(getExceptionResolver(appContext))
                .build();
        coorg = OrganisationFixture.getFixture("orgID", "name", "webSiteUrl");
    }
    ....

运行测试

    @Test
    public void testGetSingleOrganisationRecordAnd404() throws Exception {
        System.out.println("testGetSingleOrganisationRecordAndSuccess");
        String request = "/orgs/{id}";
        log.info("Request URL: " + request);

        when(service.getOrganisation(anyString())).
                thenReturn(coorg);
        this.mvc.perform(get(request)
                .accept("application/json")
                .andExpect(content().contentType(
                        .APPLICATION_JSON))
                .andExpect(status().notFound())
                .andDo(print());
    }
    ....
}

希望这有帮助。

杰克。

Answer 5

这样更好：

((HandlerExceptionResolverComposite) wac.getBean("handlerExceptionResolver")).getExceptionResolvers().get(0)

不要忘记在@Configuration类中扫描@ControllerAdvice bean：

@ComponentScan(basePackages = {"com.company.exception"})

...在Spring 4.0.2.RELEASE

上测试

Answer 6

我有同样的问题；这对我有用：

* thenThrow（）中的RuntimeException; ErrorHandler无法捕获Exception或Throwable父类。
*删除所有正在测试的方法的try-catch语句
*根本不需要@Before或@ComponentScan批注

when(getRejectionQuery.execute(anyInt(), anyInt(), anyMap())).thenThrow(new RuntimeException());

Answer 7

试试吧;

@RunWith(value = SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(classes = { MVCConfig.class, CoreConfig.class, 
        PopulaterConfiguration.class })
public class ExceptionControllerTest {

    private MockMvc mockMvc;

    @Mock
    private StatusController statusController;

    @Autowired
    private WebApplicationContext wac;

    @Before
    public void setup() {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
    }

    @Test
    public void checkUnexpectedExceptionsAreCaughtAndStatusCode500IsReturnedInResponse() throws Exception {

        when(statusController.checkHealth()).thenThrow(new RuntimeException("Unexpected Exception"));

        mockMvc.perform(get("/api/status"))
                .andDo(print())
                .andExpect(status().isInternalServerError())
                .andExpect(jsonPath("$.error").value("Unexpected Exception"));
    }
}

使用Spring MVC Test测试Spring MVC @ExceptionHandler方法

7 个答案: