使用Spring MVC Test测试Spring MVC @ExceptionHandler方法

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.这是我到目前为止:

@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,我设置了从StatusController抛出异常的期望.

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？

谢谢.

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能力。

@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，因此您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自己回答的问题和解决方案Spring MVC 控制器异常测试

希望我的回答对你有帮助