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.onData;
  import static androidx.test.espresso.Espresso.onView;
  import static androidx.test.espresso.action.ViewActions.click;
  import static androidx.test.espresso.assertion.ViewAssertions.matches;
  import static androidx.test.espresso.matcher.ViewMatchers.isRoot;
  import static androidx.test.espresso.matcher.ViewMatchers.withId;
  import static androidx.test.espresso.matcher.ViewMatchers.withText;
  import static org.hamcrest.CoreMatchers.allOf;
  import static org.hamcrest.Matchers.is;
  import static org.hamcrest.core.IsInstanceOf.instanceOf;
  import static org.junit.Assert.fail;
  
  import android.util.Log;
  import androidx.test.espresso.action.ViewActions;
  import androidx.test.espresso.remote.RemoteEspressoException;
  import androidx.test.ext.junit.rules.ActivityScenarioRule;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import org.junit.Ignore;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  @RunWith(AndroidJUnit4.class)
  public class DefaultProcessActivityTest {
    private static final String TAG = "DefaultProcActivityTest";
  
    private static final String DEFAULT_PROC_NAME = "androidx.test.multiprocess.app";
  
    @Rule
    public ActivityScenarioRule<DefaultProcessActivity> rule =
        new ActivityScenarioRule<>(DefaultProcessActivity.class);
  
    @Test
    public void verifyAssertingOnViewInRemoteProcessIsSuccessful() {
      Log.d(TAG, "Checking main process name...");
      onView(withId(R.id.textNamedProcess)).check(matches(withText(is(DEFAULT_PROC_NAME))));
  
      Log.d(TAG, "Starting activity in a secondary process...");
      onView(withId(R.id.startActivityBtn)).perform(click());
  
      Log.d(TAG, "Checking private process name...");
      onView(withId(R.id.textPrivateProcessName))
          .check(matches(withText(is(DEFAULT_PROC_NAME + ":PID2"))));
    }
  
    @Test
    public void verifyFailingAssertionsOnRemoteProcessIsPropagatedBack() {
      Log.d(TAG, "Checking main process name...");
      onView(withId(R.id.textNamedProcess)).check(matches(withText(is(DEFAULT_PROC_NAME))));
  
      Log.d(TAG, "Starting activity in a secondary process...");
      onView(withId(R.id.startActivityBtn)).perform(click());
  
      try {
        Log.d(TAG, "Attempting to check a non existing view...");
        int wrongId = 123;
        onView(withId(wrongId)).check(matches(withText(is(DEFAULT_PROC_NAME + ":PID2"))));
        fail("Expected to throw RemoteEspressoException");
      } catch (RemoteEspressoException e) {
        // expected
      }
    }
  
    @Test
    public void verifyAssertingOnDataInRemoteProcessIsSuccessful() {
      Log.d(TAG, "Checking main process name...");
      onView(withId(R.id.textNamedProcess)).check(matches(withText(is(DEFAULT_PROC_NAME))));
  
      Log.d(TAG, "Starting activity in a secondary process...");
      onView(withId(R.id.startActivityBtn)).perform(click());
  
      Log.d(TAG, "Clicking list item in private process activity...");
      onData(allOf(instanceOf(String.class), is("Latte"))).perform(click());
  
      Log.d(TAG, "Check selected text appears...");
      onView(withId(R.id.selectedListItemText)).check(matches(withText("Selected: Latte")));
    }
  
    @Test
    @Ignore // flaky b/264579367
    public void verifySwitchingBetweenTwoProcessesQuicklyWorks() {
      Log.d(TAG, "Checking main process name...");
      onView(withId(R.id.textNamedProcess)).check(matches(withText(is(DEFAULT_PROC_NAME))));
  
      launchRemoteActivityAndVerify_PressBack_VerifyOnMainActivity();
      // Lets do it again just for fun.
      launchRemoteActivityAndVerify_PressBack_VerifyOnMainActivity();
      // One more time, are you not entertained?
      launchRemoteActivityAndVerify_PressBack_VerifyOnMainActivity();
    }
  
    private void launchRemoteActivityAndVerify_PressBack_VerifyOnMainActivity() {
      Log.d(TAG, "Starting activity in a secondary process...");
      onView(withId(R.id.startActivityBtn)).perform(click());
  
      Log.d(TAG, "Checking private process name...");
      onView(withId(R.id.textPrivateProcessName))
          .check(matches(withText(is(DEFAULT_PROC_NAME + ":PID2"))));
  
      Log.d(TAG, "Pressing back to go back to the main activity...");
      onView(isRoot()).perform(ViewActions.pressBackUnconditionally());
  
      Log.d(TAG, "Checking main process name again...");
      onView(withId(R.id.textNamedProcess)).check(matches(withText(is(DEFAULT_PROC_NAME))));
    }
  }
  