浓咖啡测试失败:想要匹配1个意图.实际匹配的0个意图 [英] Espresso Test Failed: Wanted to match 1 intents. Actually matched 0 intents
问题描述
如果用户已登录，我试图测试我的SplashActivity是否正确启动HomeActivity.
I am trying to test that my SplashActivity correctly launches HomeActivity if the user is logged in.
我已经查看了StackOverflow上的相关问题，这似乎是一个常见问题，但是我似乎无法解决任何问题.
I have looked at related questions on StackOverflow, this seems to be a common issue, but I just cannot seem to get anything to work.
我已经看到测试在我的设备上执行，并通过视觉验证了SplashActivity确实正在启动HomeActivity.
I have watched the test execute on my device and visually verified that SplashActivity is indeed launching HomeActivity.
HomeActivity期望一个没有数据的简单意图.
HomeActivity expects a plain intent with no data.
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)
Second Attempt: (Trying different matching syntax)
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 (在目标活动上添加空闲资源)
Third Attempt (Adding an Idling Resource on the destination activity)
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;
}
}
这是我的基本测试.它将空闲资源注册到我的后台进程中(干净的体系结构用例):
Here is my base test. It registers an idling resource on my background processes (clean architecture use cases):
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();
}
}
推荐答案
断言给定的匹配器匹配被测应用程序发送的一个并且只有一个意图.这等效于Mockito中的verify(mock，times(1)).验证不必按照发送意图的相同顺序进行. 从调用Intents.init的时间开始记录意图.
When you use IntentsTestRule Intents.init() will complated after activity created. As far as I understand, you starting HomeActivity in SplashActivity.onCreate and finish SplashActivity.
因此，您可以在启动活动之前使用ActivityTestRule并致电Intents.init()，例如:
So you can use ActivityTestRule and call Intents.init() before launching activity, like this:
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();
}
}
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