エスプレッソonViewは要素を待っていません

Question

私はちょうどEspresso recorderと仕事を始めました。私は最初のテストを行いましたが、私が見ることのできるものから、機能を続行するのを待つことを想定しています。onView常に返します：

android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching

wait forとして機能する機能はありますか？

package com.mytest; 


import android.support.test.espresso.ViewInteraction; 
import android.support.test.rule.ActivityTestRule; 
import android.support.test.runner.AndroidJUnit4; 
import android.test.suitebuilder.annotation.LargeTest; 
import android.support.test.espresso.Espresso; 
import android.support.test.espresso.IdlingResource; 



import org.junit.Rule; 
import org.junit.Test; 
import org.junit.Before; 
import org.junit.runner.RunWith; 

import com.mytest.R; 



import static android.support.test.espresso.Espresso.onView; 
import static android.support.test.espresso.action.ViewActions.click; 
import static android.support.test.espresso.contrib.RecyclerViewActions.actionOnItemAtPosition; 
import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed; 
import static android.support.test.espresso.matcher.ViewMatchers.withId; 
import static android.support.test.espresso.matcher.ViewMatchers.withParent; 
import static org.hamcrest.Matchers.allOf; 

@LargeTest 
@RunWith(AndroidJUnit4.class) 
public class Test1 { 

    @Rule 
    public ActivityTestRule<MainActivity> mActivityRule = new ActivityTestRule<>(MainActivity.class); 

    private IdlingResource mIdlingResource; 

    @Before 
    public void registerIdlingResource() { 
     mIdlingResource = mActivityRule.getActivity().getIdlingResource(); 
     Espresso.registerIdlingResources(mIdlingResource); 
    } 

    @Test 
    public void test1() { 
     ViewInteraction recyclerView = onView(
       allOf(withId(R.id.recycler_view), isDisplayed())); 
     recyclerView.perform(actionOnItemAtPosition(0, click())); 

     ViewInteraction relativeLayout = onView(
       allOf(withId(R.id.capture_layout), isDisplayed())); 
     relativeLayout.perform(click()); 

     ViewInteraction relativeLayout2 = onView(
       allOf(withId(R.id.like_layout), 
         withParent(allOf(withId(R.id.cameraLayout), 
           withParent(withId(android.R.id.content)))), 
         isDisplayed())); 
     relativeLayout2.perform(click()); 

     ViewInteraction relativeLayout3 = onView(
       allOf(withId(R.id.exit_layout), isDisplayed())); 
     relativeLayout3.perform(click()); 

    } 
} 

Answer 1

更新： あなたがRecyclerViewを使用しているように、コードの下に試してみてくださいに見えます。

また、ネットワークコールを行っている場合、テストステップを実行する前にデータが入力されるのを待つように、RecyclerView/Network IdlingResourceを実装する必要があります。あなたはinitialTouchModeとlaunchActivityを設定する必要がActivityTestRuleを使用し

@Rule 
public ActivityTestRule<MainActivity> mActivityRule = new ActivityTestRule<>(MainActivity.class, true, true); 

    private MainActivity mMainActivity = null; 
    private IdlingResource mIdlingResource; 

    @Before 
    public void registerIdlingResource() { 
     mMainActivity = mActivityRule.getActivity(); 
    } 

    @Test 
    public void test1() { 

     mIdlingResource = mActivityRule.getActivity().getIdlingResource(); 
     Espresso.registerIdlingResources(mIdlingResource); 

     mActivityRule.launchActivity(MainActivity.createIntent(getTargetContext())); 

     ViewInteraction recyclerView = onView(
       allOf(withId(R.id.recycler_view), isDisplayed())); 
     recyclerView.perform(actionOnItemAtPosition(0, click())); 

     ViewInteraction relativeLayout = onView(
       allOf(withId(R.id.capture_layout), isDisplayed())); 
     relativeLayout.perform(click()); 

     ViewInteraction relativeLayout2 = onView(
       allOf(withId(R.id.like_layout), 
         withParent(allOf(withId(R.id.cameraLayout), 
           withParent(withId(android.R.id.content)))), 
         isDisplayed())); 
     relativeLayout2.perform(click()); 

     ViewInteraction relativeLayout3 = onView(
       allOf(withId(R.id.exit_layout), isDisplayed())); 
     relativeLayout3.perform(click()); 

     Espresso.unregisterIdlingResources(mIdlingResource); 

    } 

---

。

この

@Rule 
public ActivityTestRule<MainActivity> mActivityRule = new ActivityTestRule<>(MainActivity.class, true, true); 

も@After試験方法でIdlingResourcesの登録を解除することを忘れないでください使用してください。