Workaround test failure with stable release of media2.session

MediaSession requires prepared Looper in 1.0.3-stable release,
which is the latest stable release for now.

The requirement would be removed in 1.1.0-stable, but workaround
is needed meanwhile.

PiperOrigin-RevId: 327220042

extensions/media2/src/androidTest/java/com/google/android/exoplayer2/ext/media2/MediaSessionUtilTest.java

@@ -19,7 +19,6 @@ import static com.google.common.truth.Truth.assertThat;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 
 
 import android.content.Context;
 import android.content.Context;
-import android.os.Looper;
 import android.support.v4.media.session.MediaControllerCompat;
 import android.support.v4.media.session.MediaControllerCompat;
 import android.support.v4.media.session.MediaSessionCompat;
 import android.support.v4.media.session.MediaSessionCompat;
 import androidx.annotation.NonNull;
 import androidx.annotation.NonNull;
@@ -46,13 +45,6 @@ public class MediaSessionUtilTest {
 
 
   @Test
   @Test
   public void getSessionCompatToken_withMediaControllerCompat_returnsValidToken() throws Exception {
   public void getSessionCompatToken_withMediaControllerCompat_returnsValidToken() throws Exception {
-    // Workaround to instantiate MediaSession with public androidx.media dependency.
-    // TODO(b/146536708): Remove this workaround when the relevant change is released via
-    //                    androidx.media 1.2.0.
-    if (Looper.myLooper() == null) {
-      Looper.prepare();
-    }
-
     Context context = ApplicationProvider.getApplicationContext();
     Context context = ApplicationProvider.getApplicationContext();
 
 
     SessionPlayerConnector sessionPlayerConnector = playerTestRule.getSessionPlayerConnector();
     SessionPlayerConnector sessionPlayerConnector = playerTestRule.getSessionPlayerConnector();

extensions/media2/src/androidTest/java/com/google/android/exoplayer2/ext/media2/PlayerTestRule.java

@@ -55,15 +55,23 @@ import org.junit.rules.ExternalResource;
 
 
   @Override
   @Override
   protected void before() {
   protected void before() {
+    // Workaround limitation in androidx.media2.session:1.0.3 which session can only be instantiated
+    // on thread with prepared Looper.
+    // TODO: Remove when androidx.media2.session:1.1.0 is released without the limitation
+    //       [Internal: b/146536708]
+    if (Looper.myLooper() == null) {
+      Looper.prepare();
+    }
+
     context = ApplicationProvider.getApplicationContext();
     context = ApplicationProvider.getApplicationContext();
     executor = Executors.newFixedThreadPool(1);
     executor = Executors.newFixedThreadPool(1);
 
 
     InstrumentationRegistry.getInstrumentation()
     InstrumentationRegistry.getInstrumentation()
         .runOnMainSync(
         .runOnMainSync(
             () -> {
             () -> {
-              // Initialize AudioManager on the main thread to workaround b/78617702 that
+              // Initialize AudioManager on the main thread to workaround that
               // audio focus listener is called on the thread where the AudioManager was
               // audio focus listener is called on the thread where the AudioManager was
-              // originally initialized.
+              // originally initialized. [Internal: b/78617702]
               // Without posting this, audio focus listeners wouldn't be called because the
               // Without posting this, audio focus listeners wouldn't be called because the
               // listeners would be posted to the test thread (here) where it waits until the
               // listeners would be posted to the test thread (here) where it waits until the
               // tests are finished.
               // tests are finished.