content: /*
   * Copyright (C) 2014 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.ui.app;
  
  import static androidx.test.espresso.Espresso.onData;
  import static androidx.test.espresso.Espresso.onView;
  import static androidx.test.espresso.Espresso.pressBack;
  import static androidx.test.espresso.action.ViewActions.click;
  import static androidx.test.espresso.assertion.ViewAssertions.matches;
  import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
  import static androidx.test.espresso.matcher.ViewMatchers.withId;
  import static androidx.test.espresso.matcher.ViewMatchers.withText;
  import static org.hamcrest.Matchers.containsString;
  
  import androidx.test.core.app.ActivityScenario;
  import androidx.test.core.app.ActivityScenario.ActivityAction;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import androidx.test.filters.LargeTest;
  import org.hamcrest.Matchers;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  @RunWith(AndroidJUnit4.class)
  @LargeTest
  public class TransitionActivityMainTest {
  
    private ActivityScenario<TransitionActivityMain> activityScenario;
  
    @Before
    public void setUp() throws Exception {
      // Espresso will not launch our activity for us, we must launch it via ActivityScenario.launch.
      activityScenario = ActivityScenario.launch(TransitionActivityMain.class);
    }
  
    @Test
    public void testTransition() throws InterruptedException {
      onView(withId(R.id.grid)).check(matches(isDisplayed()));
      onData(Matchers.anything()).atPosition(0).perform(click());
      onView(withText(containsString("Flying in the Light")))
          .check(matches(isDisplayed()));
      pressBack();
      onView(withId(R.id.grid)).check(matches(isDisplayed()));
    }
  
    @Test
    public void testInterruptedBackDoesntExit() {
      // Set a flag in the activity to intercept the back button.
      activityScenario.onActivity(
          new ActivityAction<TransitionActivityMain>() {
            @Override
            public void perform(TransitionActivityMain activity) {
              activity.setExitOnBackPressed(false);
            }
          });
      pressBack();
      pressBack();
      pressBack();
      // Nothing should happen, activity doesn't exit.
  
      onView(withId(R.id.grid)).check(matches(isDisplayed()));
    }
  }
  