Question

我的@ControllerAdvice带注释的控制器如下所示：

@ControllerAdvice
public class GlobalControllerExceptionHandler {

    @ResponseStatus(value = HttpStatus.UNAUTHORIZED)
    @ExceptionHandler(AuthenticationException.class)
    public void authenticationExceptionHandler() {
    }
}

当然我的开发是测试驱动的，我想在JUnit测试中使用我的异常处理程序。我的测试案例如下：

public class ClientQueriesControllerTest {

    private MockMvc mockMvc;

    @InjectMocks
    private ClientQueriesController controller;

    @Mock
    private AuthenticationService authenticationService;

    @Before
    public void setup() {
        MockitoAnnotations.initMocks(this);
        mockMvc = MockMvcBuilders.standaloneSetup(controller).build();
    }

    @Test
    public void findAllAccountRelatedClientsUnauthorized() throws Exception {
        when(authenticationService.validateAuthorization(anyString())).thenThrow(AuthenticationException.class);

        mockMvc.perform(get("/rest/clients").header("Authorization", UUID.randomUUID().toString()))
                .andExpect(status().isUnauthorized());
    }
}

我可能需要注册ControllerAdvice班级。怎么做？

Answer 1

从Spring 4.2开始，您可以将ControllerAdvice直接注册到StandaloneMockMvcBuilder中：

MockMvcBuilders
     .standaloneSetup(myController)
     .setControllerAdvice(new MyontrollerAdvice())
     .build();

Answer 2

为了激活完整的Spring MVC配置，您需要使用MockMvcBuilders.webAppContextSetup而不是MockMvcBuilders.standaloneSetup。

查看Spring文档的this部分以获取更多详细信息。

您的代码如下：

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration("test-config.xml")
public class ClientQueriesControllerTest {

    private MockMvc mockMvc;

    @Autowired
    private WebApplicationContext webApplicationContext;

    @Autowired
    private AuthenticationService authenticationService;

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

    @Test
    public void findAllAccountRelatedClientsUnauthorized() throws Exception {
        when(authenticationService.validateAuthorization(anyString())).thenThrow(AuthenticationException.class);

        mockMvc.perform(get("/rest/clients").header("Authorization", UUID.randomUUID().toString()))
                .andExpect(status().isUnauthorized());
    }
}

然后在test-config.xml内，你会为AuthenticationService添加一个模拟的Spring bean。

<bean id="authenticationService" class="org.mockito.Mockito" factory-method="mock">
    <constructor-arg value="your.package.structure.AuthenticationService"/>
</bean>

如果要重用常规的Spring配置文件而不是创建AuthenticationService，您当然可以使用配置文件在测试中注入模拟test-config.xml。

<强>更新

经过深入挖掘后，我发现（StandaloneMockMvcBuilder）返回的MockMvcBuilders.standaloneSetup完全可以自定义。这意味着您可以插入您喜欢的任何异常解析器。

但是，由于您使用的是@ControllerAdvice，因此以下代码无效。但是，如果您的@ExceptionHandler方法位于同一个控制器中，则您需要更改的代码如下：

mockMvc = MockMvcBuilders.standaloneSetup(controller).setHandlerExceptionResolvers(new ExceptionHandlerExceptionResolver()).build();

更新2

当你还使用@ControllerAdvice时，还有一些挖掘给出了如何注册正确的异常处理程序的答案。

您需要将测试中的设置代码更新为以下内容：

    @Before
    public void setUp() throws Exception {
        final ExceptionHandlerExceptionResolver exceptionHandlerExceptionResolver = new ExceptionHandlerExceptionResolver();

        //here we need to setup a dummy application context that only registers the GlobalControllerExceptionHandler
        final StaticApplicationContext applicationContext = new StaticApplicationContext();
        applicationContext.registerBeanDefinition("advice", new RootBeanDefinition(GlobalControllerExceptionHandler.class, null, null));

        //set the application context of the resolver to the dummy application context we just created
        exceptionHandlerExceptionResolver.setApplicationContext(applicationContext);

        //needed in order to force the exception resolver to update it's internal caches
        exceptionHandlerExceptionResolver.afterPropertiesSet();

        mockMvc = MockMvcBuilders.standaloneSetup(controller).setHandlerExceptionResolvers(exceptionHandlerExceptionResolver).build();
    }

Answer 3

使用以下解决方案超越NestedServletException ...

    final StaticApplicationContext applicationContext = new StaticApplicationContext();
    applicationContext.registerSingleton("exceptionHandler", GlobalControllerExceptionHandler.class);

    final WebMvcConfigurationSupport webMvcConfigurationSupport = new WebMvcConfigurationSupport();
    webMvcConfigurationSupport.setApplicationContext(applicationContext);

    mockMvc = MockMvcBuilders.standaloneSetup(controller).
        setHandlerExceptionResolvers(webMvcConfigurationSupport.handlerExceptionResolver()).
        build();

Answer 4

如果您有多个建议类，每个建议类都带有@ExceptionHandler，并且其中一个类正在处理非常通用的基本异常，例如@ExceptionHandler({Exception.class})，那么您将需要在建议类中添加一些优先顺序按照这个答案

https://stackoverflow.com/a/19500823/378151

Answer 5

您可以将其添加到测试类

@Autowired
@Qualifier("handlerExceptionResolver")
void setExceptionResolver(HandlerExceptionResolver resolver)
{
    this.exceptionResolver = resolver;
}

然后将exceptionResolver添加到您的MockMvc

@Before
public void setup() {
    MockitoAnnotations.initMocks(this);
    mockMvc = MockMvcBuilders.standaloneSetup(controller)
               .setHandlerExceptionResolvers(this.exceptionResolver).build();
}

使用MockMVC在JUnitTest中注册@ControllerAdvice注释控制器

5 个答案: