content: /*
   * Copyright 2018 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.ext.junit.rules;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import android.app.Activity;
  import androidx.lifecycle.Lifecycle;
  import androidx.test.core.app.testing.RecreationRecordingActivity;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import androidx.test.runner.lifecycle.ActivityLifecycleMonitorRegistry;
  import androidx.test.runner.lifecycle.Stage;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Tests for {@link ActivityScenarioRule}. */
  @RunWith(AndroidJUnit4.class)
  public final class ActivityScenarioRuleTest {
    @Rule
    public ActivityScenarioRule<RecreationRecordingActivity> activityScenarioRule =
        new ActivityScenarioRule<>(RecreationRecordingActivity.class);
  
    @Test
    public void activityShouldBeResumedAutomatically() throws Exception {
      activityScenarioRule
          .getScenario()
          .onActivity(
              activity -> {
                assertThat(lastLifeCycleTransition(activity)).isEqualTo(Stage.RESUMED);
                assertThat(activity.getNumberOfRecreations()).isEqualTo(0);
              });
    }
  
    @Test
    public void recreateActivityShouldWork() throws Exception {
      activityScenarioRule.getScenario().recreate();
      activityScenarioRule
          .getScenario()
          .onActivity(
              activity -> {
                assertThat(lastLifeCycleTransition(activity)).isEqualTo(Stage.RESUMED);
                assertThat(activity.getNumberOfRecreations()).isEqualTo(1);
              });
    }
  
    @Test
    public void activityCanBeDestroyedManually() throws Exception {
      activityScenarioRule.getScenario().moveToState(Lifecycle.State.DESTROYED);
    }
  
    @Test
    public void activityCanBeClosedManually() throws Exception {
      activityScenarioRule.getScenario().close();
    }
  
    private static Stage lastLifeCycleTransition(Activity activity) {
      return ActivityLifecycleMonitorRegistry.getInstance().getLifecycleStageOf(activity);
    }
  }
  