Make DashMediaSource add the media item to the timeline

PiperOrigin-RevId: 312646461

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DashMediaSourceTest.java

@@ -17,11 +17,17 @@ package com.google.android.exoplayer2.source.dash;
 
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
+import static org.mockito.Mockito.mock;
 
+import androidx.annotation.Nullable;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
+import com.google.android.exoplayer2.MediaItem;
 import com.google.android.exoplayer2.ParserException;
+import com.google.android.exoplayer2.offline.StreamKey;
+import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.ParsingLoadable;
 import com.google.android.exoplayer2.util.Util;
+import com.google.common.collect.ImmutableList;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import org.junit.Test;
@@ -68,6 +74,108 @@ public final class DashMediaSourceTest {
     }
   }
 
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factorySetTag_nullMediaItemTag_setsMediaItemTag() {
+    Object tag = new Object();
+    MediaItem mediaItem = MediaItem.fromUri("http://www.google.com");
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class)).setTag(tag);
+
+    MediaItem dashMediaItem = factory.createMediaSource(mediaItem).getMediaItem();
+
+    assertThat(dashMediaItem.playbackProperties).isNotNull();
+    assertThat(dashMediaItem.playbackProperties.uri).isEqualTo(mediaItem.playbackProperties.uri);
+    assertThat(dashMediaItem.playbackProperties.tag).isEqualTo(tag);
+  }
+
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factorySetTag_nonNullMediaItemTag_doesNotOverrideMediaItemTag() {
+    Object factoryTag = new Object();
+    Object mediaItemTag = new Object();
+    MediaItem mediaItem =
+        new MediaItem.Builder().setUri("http://www.google.com").setTag(mediaItemTag).build();
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class)).setTag(factoryTag);
+
+    MediaItem dashMediaItem = factory.createMediaSource(mediaItem).getMediaItem();
+
+    assertThat(dashMediaItem.playbackProperties).isNotNull();
+    assertThat(dashMediaItem.playbackProperties.uri).isEqualTo(mediaItem.playbackProperties.uri);
+    assertThat(dashMediaItem.playbackProperties.tag).isEqualTo(mediaItemTag);
+  }
+
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factorySetTag_setsDeprecatedMediaSourceTag() {
+    Object tag = new Object();
+    MediaItem mediaItem = MediaItem.fromUri("http://www.google.com");
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class)).setTag(tag);
+
+    @Nullable Object mediaSourceTag = factory.createMediaSource(mediaItem).getTag();
+
+    assertThat(mediaSourceTag).isEqualTo(tag);
+  }
+
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factoryCreateMediaSource_setsDeprecatedMediaSourceTag() {
+    Object tag = new Object();
+    MediaItem mediaItem =
+        new MediaItem.Builder().setUri("http://www.google.com").setTag(tag).build();
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class)).setTag(new Object());
+
+    @Nullable Object mediaSourceTag = factory.createMediaSource(mediaItem).getTag();
+
+    assertThat(mediaSourceTag).isEqualTo(tag);
+  }
+
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factorySetStreamKeys_emptyMediaItemStreamKeys_setsMediaItemStreamKeys() {
+    MediaItem mediaItem = MediaItem.fromUri("http://www.google.com");
+    StreamKey streamKey = new StreamKey(/* groupIndex= */ 0, /* trackIndex= */ 1);
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class))
+            .setStreamKeys(ImmutableList.of(streamKey));
+
+    MediaItem dashMediaItem = factory.createMediaSource(mediaItem).getMediaItem();
+
+    assertThat(dashMediaItem.playbackProperties).isNotNull();
+    assertThat(dashMediaItem.playbackProperties.uri).isEqualTo(mediaItem.playbackProperties.uri);
+    assertThat(dashMediaItem.playbackProperties.streamKeys).containsExactly(streamKey);
+  }
+
+  // Tests backwards compatibility
+  @SuppressWarnings("deprecation")
+  @Test
+  public void factorySetStreamKeys_withMediaItemStreamKeys_doesNotsOverrideMediaItemStreamKeys() {
+    StreamKey mediaItemStreamKey = new StreamKey(/* groupIndex= */ 0, /* trackIndex= */ 1);
+    MediaItem mediaItem =
+        new MediaItem.Builder()
+            .setUri("http://www.google.com")
+            .setStreamKeys(ImmutableList.of(mediaItemStreamKey))
+            .build();
+    DashMediaSource.Factory factory =
+        new DashMediaSource.Factory(mock(DataSource.Factory.class))
+            .setStreamKeys(
+                ImmutableList.of(new StreamKey(/* groupIndex= */ 1, /* trackIndex= */ 0)));
+
+    MediaItem dashMediaItem = factory.createMediaSource(mediaItem).getMediaItem();
+
+    assertThat(dashMediaItem.playbackProperties).isNotNull();
+    assertThat(dashMediaItem.playbackProperties.uri).isEqualTo(mediaItem.playbackProperties.uri);
+    assertThat(dashMediaItem.playbackProperties.streamKeys).containsExactly(mediaItemStreamKey);
+  }
+
   private static void assertParseStringToLong(
       long expected, ParsingLoadable.Parser<Long> parser, String data) throws IOException {
     long actual = parser.parse(null, new ByteArrayInputStream(Util.getUtf8Bytes(data)));