模拟存储库 bean 始终为空

Question

我已经尝试测试控制器行为几个小时了。问题是我必须模拟存储库，它总是变成空的。

从结构上看，我有一个控制器，它有两个注入的服务，这些服务使用两个不同的存储库。

所以我可以测试我的控制器和我的服务逻辑行为我必须模拟存储库对某些查询的响应。

我正在努力实现它，如下所示：

@WebMvcTest({ WorkspaceRestController.class })
@Tag(Tags.COMPONENT)
@ActiveProfiles(PfSpringProfiles.TEST)
public class WorkspaceRestControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private IWorkSpaceRepository workSpaceRepository;

    @MockBean
    private IExpertSystemRepository expertSystemRepository;

    @InjectMocks
    private IExpertSystemService expertSystemService;
    
    @InjectMocks
    private IAsyncWorkService asyncWorkspaceService ; 

    @InjectMocks
    private IWorkspaceService workspaceService;

    @InjectMocks
    WorkspaceRestController workspaceRestController;


    @BeforeAll
    public void intTests() {
    }

    @Test
    public void checkRetrievedContentIsNotnull() throws Exception {

        // Given
        Mockito.when(workSpaceRepository.getAllWorkspaces())
                .thenReturn(new WorkSpaceRepositoryMock().getAllWorkspaces(WorkSpaceRepositoryMock.CASE_FULL));
        Mockito.when(expertSystemRepository.getAllLockedEsByWsId(WorkSpaceRepositoryMock.FIRST_WORKSPACE_ID))
                .thenReturn(new ExpertSystemRepositoryMock()
                        .getAllLockedEsByWsId(WorkSpaceRepositoryMock.FIRST_WORKSPACE_ID));
        Mockito.when(expertSystemRepository.getAllLockedEsByWsId(WorkSpaceRepositoryMock.SECOND_WORKSPACE_ID))
                .thenReturn(new ExpertSystemRepositoryMock()
                        .getAllLockedEsByWsId(WorkSpaceRepositoryMock.SECOND_WORKSPACE_ID));
        Mockito.when(expertSystemRepository.getAllLockedEsByWsId(WorkSpaceRepositoryMock.THIRD_WORKSPACE_ID))
                .thenReturn(new ExpertSystemRepositoryMock()
                        .getAllLockedEsByWsId(WorkSpaceRepositoryMock.THIRD_WORKSPACE_ID));

        // When

        MvcResult result = mockMvc.perform(get("/rest/v2/ws-list")).andExpect(request().asyncStarted()).andDo(print())
                .andReturn();

        // Then
        mockMvc.perform(asyncDispatch(result)).andDo(print());
        // .andExpect( content().string(mapper.writeValueAsString(fullWorkspaceResponseSet)));

    }

}

然而，每当我启动 JUnit 测试时，workSpaceRepository 始终为空。

我该怎么办？

在我的控制器、服务和存储库的代码下方

工作区存储库

@Repository
public interface IWorkSpaceRepository extends JpaRepository<Workspace, Long> {
    
    /**
     * This method fetches the list of all available workspaces. It could return an empty list.
     *
     * @return List<Workspace> The list of all workspaces found
     */
    @Transactional
    @Modifying(clearAutomatically = false)
    @Query(value = "SELECT ws from Workspace ws JOIN FETCH ws.configuration")
    List<Workspace> getAllWorkspaces();
}

工作区服务

@Service
public class WorkspaceServiceImp implements IWorkspaceService {

    private static final Logger LOGGER = LoggerFactory.getLogger(WorkspaceServiceImp.class);

    private static final String ERROR_AT_DELETE_WORKSPACE_METHOD = "Error at deleteWorkspace() method";
    private static final String ERROR_AT_CREATE_WORKSPACE_METHOD = "Error at createWorkspace() method";

    @Autowired
    private IWorkSpaceRepository workSpaceRepository;

    @Autowired
    private WorkspaceMapper workspaceMapper;

    @Autowired
    private IExpertSystemService expertSystemService;

    @Autowired
    private IPatternInfosService patternInfosService;

    @Autowired
    private IPatternFieldsService patternFieldsService;

    @Autowired
    private IConfigurationService configurationService;
   
// service methods implementation is ommited
}

控制器

@RestController
@RequestMapping(path = "/rest/ws/")
@Api("WS Service Rest")
@Validated
public class WorkspaceRestController implements RestApiPing {

    private static final Logger LOGGER = LoggerFactory.getLogger(WorkspaceRestController.class);

    @Autowired
    private IWorkspaceService workspaceService;
 

    @Autowired
    private AsyncWorkspaceService asyncWorkspaceService;
 // rest api definition here omited   
 }

我得到的堆栈跟踪：

java.lang.NullPointerException
    at com.bnpp.pf.diligense.controller.WorkspaceRestControllerTest.checkRetrievedContentIsNotnull(WorkspaceRestControllerTest.java:65)
    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.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:306)
    at org.junit.runners.BlockJUnit4ClassRunner.evaluate(BlockJUnit4ClassRunner.java:100)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:331)
    at org.junit.runners.ParentRunner.schedule(ParentRunner.java:79)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
    at org.junit.runners.ParentRunner.access0(ParentRunner.java:66)
    at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:293)
    at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:306)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
    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:42)
    at org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:80)
    at org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:72)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute[=14=](EngineExecutionOrchestrator.java:54)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:95)
    at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:91)
    at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:60)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

Answer 1

将 @RunWith(SpringRunner.class) 添加到您的测试 class 如果您是运行 junit4 以便 Mockito 工作。

对于 junit5，等效项是 @ExtendWith(SpringExtension.class)，但它包含在 @WebMvcTest 中，因此不需要显式声明。

模拟存储库 bean 始终为空

Mocking Repository bean is always null

java

unit-testing

mockito

spring-boot