content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package androidx.test.multiprocess.app;
  
  import static androidx.test.espresso.Espresso.onView;
  import static androidx.test.espresso.action.ViewActions.click;
  import static androidx.test.espresso.action.ViewActions.closeSoftKeyboard;
  import static androidx.test.espresso.action.ViewActions.typeText;
  import static androidx.test.espresso.assertion.ViewAssertions.matches;
  import static androidx.test.espresso.matcher.ViewMatchers.withId;
  import static androidx.test.espresso.matcher.ViewMatchers.withText;
  
  import androidx.test.ext.junit.rules.ActivityScenarioRule;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /**
   * Sample test to showcase Idling Resource in a multi-process environment.
   */
  @RunWith(AndroidJUnit4.class)
  public class IdlingActivityTest {
  
    private static final String STRING_TO_BE_TYPED = "Hello Multiprocess Espresso!";
    private static final String IDLING_PROC_NAME = "androidx.test.multiprocess.app:idling";
  
    @Rule
    public ActivityScenarioRule<IdlingActivity> activityRule =
        new ActivityScenarioRule<>(IdlingActivity.class);
  
    @Test
    public void verifyChangingTextAsynchronously() {
      // Type text and then press the button.
      onView(withId(R.id.editTextUserInput))
          .perform(typeText(STRING_TO_BE_TYPED), closeSoftKeyboard());
      onView(withId(R.id.changeTextBtn)).perform(click());
  
      // The above will be a long running task where an IdlingResource is required in order for
      // Espresso to synchronize against the interaction. The IdlingResource
      // registration/unregistration responsibility is now shifted to the Activity (or process) under
      // test which enables the ability to handle IdlingResources cross process.
  
      // Check that the text was changed.
      onView(withId(R.id.textToBeChanged)).check(matches(withText(STRING_TO_BE_TYPED)));
    }
  
    @Test
    public void verifyRunningInIdlingProcess() {
      onView(withId(R.id.textIdlingProcessName)).check(matches(withText(IDLING_PROC_NAME)));
    }
  }
  