content: /*
   * Copyright (C) 2017 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 com.google.android.exoplayer2.playbacktests.gts;
  
  import static com.google.common.truth.Truth.assertWithMessage;
  
  import android.net.Uri;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import androidx.test.rule.ActivityTestRule;
  import com.google.android.exoplayer2.MediaItem;
  import com.google.android.exoplayer2.database.StandaloneDatabaseProvider;
  import com.google.android.exoplayer2.offline.StreamKey;
  import com.google.android.exoplayer2.source.dash.DashUtil;
  import com.google.android.exoplayer2.source.dash.manifest.AdaptationSet;
  import com.google.android.exoplayer2.source.dash.manifest.DashManifest;
  import com.google.android.exoplayer2.source.dash.manifest.Representation;
  import com.google.android.exoplayer2.source.dash.offline.DashDownloader;
  import com.google.android.exoplayer2.testutil.HostActivity;
  import com.google.android.exoplayer2.upstream.DataSource;
  import com.google.android.exoplayer2.upstream.DefaultHttpDataSource;
  import com.google.android.exoplayer2.upstream.cache.CacheDataSource;
  import com.google.android.exoplayer2.upstream.cache.NoOpCacheEvictor;
  import com.google.android.exoplayer2.upstream.cache.SimpleCache;
  import com.google.android.exoplayer2.util.Util;
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Tests downloaded DASH playbacks. */
  @RunWith(AndroidJUnit4.class)
  public final class DashDownloadTest {
  
    private static final String TAG = "DashDownloadTest";
  
    private static final Uri MANIFEST_URI = Uri.parse(DashTestData.H264_MANIFEST);
  
    @Rule public ActivityTestRule<HostActivity> testRule = new ActivityTestRule<>(HostActivity.class);
  
    private DashTestRunner testRunner;
    private File tempFolder;
    private SimpleCache cache;
    private DataSource.Factory httpDataSourceFactory;
    private DataSource.Factory offlineDataSourceFactory;
  
    @Before
    public void setUp() throws Exception {
      testRunner =
          new DashTestRunner(TAG, testRule.getActivity())
              .setManifestUrl(DashTestData.H264_MANIFEST)
              .setFullPlaybackNoSeeking(true)
              .setCanIncludeAdditionalVideoFormats(false)
              .setAudioVideoFormats(
                  DashTestData.AAC_AUDIO_REPRESENTATION_ID, DashTestData.H264_CDD_FIXED);
      tempFolder = Util.createTempDirectory(testRule.getActivity(), "ExoPlayerTest");
      cache =
          new SimpleCache(
              tempFolder,
              new NoOpCacheEvictor(),
              new StandaloneDatabaseProvider(testRule.getActivity()));
      httpDataSourceFactory = new DefaultHttpDataSource.Factory();
      offlineDataSourceFactory = new CacheDataSource.Factory().setCache(cache);
    }
  
    @After
    public void tearDown() {
      testRunner = null;
      Util.recursiveDelete(tempFolder);
      cache = null;
    }
  
    // Download tests
  
    @Test
    public void download() throws Exception {
      DashDownloader dashDownloader = downloadContent();
      dashDownloader.download(/* progressListener= */ null);
  
      testRunner
          .setStreamName("test_h264_fixed_download")
          .setDataSourceFactory(offlineDataSourceFactory)
          .run();
  
      dashDownloader.remove();
  
      assertWithMessage("There should be no cache key left").that(cache.getKeys()).isEmpty();
      assertWithMessage("There should be no content left").that(cache.getCacheSpace()).isEqualTo(0);
    }
  
    private DashDownloader downloadContent() throws Exception {
      DashManifest dashManifest =
          DashUtil.loadManifest(httpDataSourceFactory.createDataSource(), MANIFEST_URI);
      ArrayList<StreamKey> keys = new ArrayList<>();
      for (int pIndex = 0; pIndex < dashManifest.getPeriodCount(); pIndex++) {
        List<AdaptationSet> adaptationSets = dashManifest.getPeriod(pIndex).adaptationSets;
        for (int aIndex = 0; aIndex < adaptationSets.size(); aIndex++) {
          AdaptationSet adaptationSet = adaptationSets.get(aIndex);
          List<Representation> representations = adaptationSet.representations;
          for (int rIndex = 0; rIndex < representations.size(); rIndex++) {
            String id = representations.get(rIndex).format.id;
            if (DashTestData.AAC_AUDIO_REPRESENTATION_ID.equals(id)
                || DashTestData.H264_CDD_FIXED.equals(id)) {
              keys.add(new StreamKey(pIndex, aIndex, rIndex));
            }
          }
        }
      }
      CacheDataSource.Factory cacheDataSourceFactory =
          new CacheDataSource.Factory()
              .setCache(cache)
              .setUpstreamDataSourceFactory(httpDataSourceFactory);
      return new DashDownloader(
          new MediaItem.Builder().setUri(MANIFEST_URI).setStreamKeys(keys).build(),
          cacheDataSourceFactory);
    }
  }
  