测试在使用Espresso检查对话框片段时挂起

Question

我正在为一个活动编写测试，该活动在发出和接收网络请求后显示确认对话框。我正在使用onView(withText(confirmText)).inRoot(isDialog()).check(matches(isDisplayed()));来检查对话框，并且我还删除了inRoot()来电，但无论我做什么，测试都挂在这里，永远不会完成。

我还为此活动添加了一个IdlingResource，当我收到一个成功的网络呼叫时，该活动被设置为空闲，但是否这是注册的似乎没什么区别。这似乎问题主要在于检查对话框。这是测试类：

@RunWith(AndroidJUnit4.class)

公共类RequestActivityTest {

private DialogFragmentIdlingResource mDialogFragmentIdlingResource;
private String mTestRequest;
private String mTopic;

@Rule
public ActivityTestRule<RequestActivity> mActivityTestRule = new ActivityTestRule<>(RequestActivity.class);

@Before
public void setUp() {
    registerIdlingResource();
    mTestRequest = "Test request";
    mTopic = "Appliance";
}

@After
public void tearDown() {
    unregisterIdlingResource();
}

@Test
public void enterText() {
    onView(withId(R.id.request_input)).perform(typeText(mTestRequest));
}

@Test
public void checkMessageSent() {

    mActivityTestRule.getActivity().setTopic(mTopic);
    onView(withId(R.id.request_input)).perform(typeText(mTestRequest));
    onView(withId(R.id.submit_request_button)).perform(click());
    String confirmText = InstrumentationRegistry.getTargetContext().getString(R.string.confirm_request_dialog_message);
    onView(withText(confirmText)).inRoot(isDialog()).check(matches(isDisplayed()));
}

public void registerIdlingResource() {
    mDialogFragmentIdlingResource = (DialogFragmentIdlingResource) mActivityTestRule.getActivity().getIdlingResource();
    Espresso.registerIdlingResources(mDialogFragmentIdlingResource);
}

public void unregisterIdlingResource() {
    if (mDialogFragmentIdlingResource != null) {
        Espresso.unregisterIdlingResources(mDialogFragmentIdlingResource);
    }
}

}

以下是发送网络请求和注册空闲资源的Activity方法：

private void sendMessage() {
    if (UserPreferences.getUserProfile().getCompanyProfile() != null) {
        if (NetworkUtils.isConnectedToInternet(this)) {
            if (mNetworkErrorMessageSnackbar != null) mNetworkErrorMessageSnackbar.dismiss();
            String message = mRequestMessage.getText().toString();
            mRequestPresenter.onRequestSubmit(UserPreferences.getUserProfile().getCompanyProfile()
                    .getBuilding().getId(), mTopic, message);
            setFragmentIdle();
        } else {
            mNetworkErrorMessageSnackbar = new NetworkErrorMessageSnackbar
                    .Builder(HttpStatusCode.NO_INTERNET, mRequestLayout, this).build();
            mNetworkErrorMessageSnackbar.show();
        }
    }
}

@VisibleForTesting
    @NonNull
    public IdlingResource getIdlingResource() {
        if (mDialogFragmentIdlingResource == null) {
            mDialogFragmentIdlingResource = new DialogFragmentIdlingResource(this.getSupportFragmentManager(), ConfirmationDialogFragment.TAG);
        }
        return mDialogFragmentIdlingResource;
    }

    public  void setFragmentIdle() {
        if (mDialogFragmentIdlingResource != null) {
            mDialogFragmentIdlingResource.isIdleNow();
        }
    }

    public void setTopic(String topic) {
        mTopic = topic;
    }