android-espresso - Espresso 测试失败 : Wanted to match 1 intents. 实际匹配 0 个意图

Question

如果用户登录，我正在尝试测试我的 SplashActivity 是否正确启动 HomeActivity。

我查看了 StackOverflow 上的相关问题，这似乎是一个常见问题，但我似乎无法解决任何问题。

我已经看到测试在我的设备上执行，并在视觉上验证了 SplashActivity 确实在启动 HomeActivity。

HomeActivity 需要一个没有数据的简单意图。

这是完整的错误:

IntentMatcher: has component: has component with: class name: is "com.shoeboxed.fetch.presentation.ui.activities.HomeActivity" package name: an instance of java.lang.String short class name: an instance of java.lang.String

初始尝试:

public class SplashActivityTest extends EspressoIntegrationTest {

    @Mock
    UserRepository userRepository;

    @Rule
    public IntentsTestRule<SplashActivity> activityRule = new IntentsTestRule<>(SplashActivity.class, true, false);

    @Test
    public void loggedInUser() {
        User user = Fakes.user();
        when(userRepository.getUser()).thenReturn(user);
        doNothing().when(userRepository).refreshTeam();

        activityRule.launchActivity(new Intent());
        intended(hasComponent(HomeActivity.class.getName()));

        verify(userRepository, times(1)).getUser();
        verify(userRepository, times(1)).refreshTeam();
    }
}

第二次尝试:
(尝试不同的匹配语法)

public class SplashActivityTest extends EspressoIntegrationTest {

    @Mock
    UserRepository userRepository;

    @Rule
    public IntentsTestRule<SplashActivity> activityRule = new IntentsTestRule<>(SplashActivity.class, true, false);

    @Test
    public void loggedInUser() {
        User user = Fakes.user();
        when(userRepository.getUser()).thenReturn(user);
        doNothing().when(userRepository).refreshTeam();

        activityRule.launchActivity(new Intent());
        intended(hasComponent(new ComponentName(getTargetContext(), HomeActivity.class)));

        verify(userRepository, times(1)).getUser();
        verify(userRepository, times(1)).refreshTeam();
    }
}

第三次尝试
(在目标事件上添加空闲资源)

public class SplashActivityTest extends EspressoIntegrationTest {

    @Mock
    UserRepository userRepository;

    @Rule
    public IntentsTestRule<SplashActivity> activityRule = new IntentsTestRule<>(SplashActivity.class, true, false);

    @Test
    public void loggedInUser() {
        User user = Fakes.user();
        when(userRepository.getUser()).thenReturn(user);
        doNothing().when(userRepository).refreshTeam();

        WaitActivityIsResumedIdlingResource resource = new WaitActivityIsResumedIdlingResource(HomeActivity.class.getName());
        Espresso.registerIdlingResources(resource);

        activityRule.launchActivity(new Intent());
        intended(hasComponent(new ComponentName(getTargetContext(), HomeActivity.class)));

        verify(userRepository, times(1)).getUser();
        verify(userRepository, times(1)).refreshTeam();
        Espresso.unregisterIdlingResources(resource);
    }


    private static class WaitActivityIsResumedIdlingResource implements IdlingResource {
        private final ActivityLifecycleMonitor instance;
        private final String activityToWaitClassName;
        private volatile ResourceCallback resourceCallback;
        boolean resumed = false;
        public WaitActivityIsResumedIdlingResource(String activityToWaitClassName) {
            instance = ActivityLifecycleMonitorRegistry.getInstance();
            this.activityToWaitClassName = activityToWaitClassName;
    }

    @Override
    public String getName() {
        return this.getClass().getName();
    }

    @Override
    public boolean isIdleNow() {
        resumed = isActivityLaunched();
        if(resumed && resourceCallback != null) {
            resourceCallback.onTransitionToIdle();
        }

        return resumed;
    }

    private boolean isActivityLaunched() {
        Collection<Activity> activitiesInStage = instance.getActivitiesInStage(Stage.RESUMED);
        for (Activity activity : activitiesInStage) {
            if(activity.getClass().getName().equals(activityToWaitClassName)){
                return true;
            }
        }
        return false;
    }

    @Override
    public void registerIdleTransitionCallback(IdlingResource.ResourceCallback resourceCallback) {
        this.resourceCallback = resourceCallback;
    }
}

这是我的基础测试。它在我的后台进程上注册空闲资源(干净的架构用例):

public class EspressoIntegrationTest {

    private static IdlingResource idlingThreadPool;

    private AppComponent oldComponent = app().appComponent();

    @Rule
    public DaggerMockRule<AppComponent> daggerRule = new DaggerMockRule<>(AppComponent.class, new AppModule(app()))
            .set(component -> {
                oldComponent = app().appComponent();
                app().setAppComponent(component);
            });

    @BeforeClass
    public static void registerResources() {
        idlingThreadPool = getIdlingThreadExecutor();
        Espresso.registerIdlingResources(idlingThreadPool);
    }

    @AfterClass
    public static void deregister() {
        Espresso.unregisterIdlingResources(idlingThreadPool);
    }

    @After
    public void resetApp() {
        app().setAppComponent(oldComponent);
    }

    private static IdlingResource getIdlingThreadExecutor() {
        return (IdlingResource) jobExecutor().getThreadPoolExecutor();
    }

    private static JobExecutor jobExecutor() {
        return ((JobExecutor) app().appComponent().threadExecutor());
    }

    private static App app() {
        return (App) getInstrumentation().getTargetContext().getApplicationContext();
    }
}

Answer 1

Asserts that the given matcher matches one and only one intent sent by the application under test. This is an equivalent of verify(mock, times(1)) in Mockito. Verification does not have to occur in the same order as the intents were sent. Intents are recorded from the time that Intents.init is called

See documentation

当您使用 IntentsTestRule Intents.init()将在创建事件后进行计算。据我了解，你开始 HomeActivity在 SplashActivity.onCreate并完成 SplashActivity .

所以你可以使用 ActivityTestRule并调用 Intents.init()在启动事件之前，像这样:

public class SplashActivityTest extends EspressoIntegrationTest {

    @Mock
    UserRepository userRepository;

    @Rule
    public ActivityTestRule<SplashActivity> activityRule = new ActivityTestRule<>(SplashActivity.class, true, false);


    @Before
    public void setUp() throws Exception{
        Intents.init();
    }

    @Test
    public void loggedInUser() {
        User user = Fakes.user();
        when(userRepository.getUser()).thenReturn(user);
        doNothing().when(userRepository).refreshTeam();

        activityRule.launchActivity(new Intent());
        intended(hasComponent(HomeActivity.class.getName()));

        verify(userRepository, times(1)).getUser();
        verify(userRepository, times(1)).refreshTeam();
    }


    @After
    public void tearDown() throws Exception{
        Intents.release();
    }
}