Test that ExoPlayer can be built in a background thread

PiperOrigin-RevId: 318264209

library/core/src/test/java/com/google/android/exoplayer2/ExoPlayerTest.java

@@ -105,6 +105,7 @@ import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
 import org.robolectric.annotation.LooperMode;
 import org.robolectric.annotation.LooperMode;
 import org.robolectric.shadows.ShadowAudioManager;
 import org.robolectric.shadows.ShadowAudioManager;
 
 
@@ -6766,6 +6767,20 @@ public final class ExoPlayerTest {
     assertThat(initialMediaItems).containsExactlyElementsIn(currentMediaItems);
     assertThat(initialMediaItems).containsExactlyElementsIn(currentMediaItems);
   }
   }
 
 
+  // TODO: Revert to @Config(sdk = Config.ALL_SDKS) once b/143232359 is resolved
+  @Test
+  @Config(minSdk = Config.OLDEST_SDK, maxSdk = Config.TARGET_SDK)
+  public void buildSimpleExoPlayerInBackgroundThread_doesNotThrow() throws Exception {
+    Thread builderThread = new Thread(() -> new SimpleExoPlayer.Builder(context).build());
+    AtomicReference<Throwable> builderThrow = new AtomicReference<>();
+    builderThread.setUncaughtExceptionHandler((thread, throwable) -> builderThrow.set(throwable));
+
+    builderThread.start();
+    builderThread.join();
+
+    assertThat(builderThrow.get()).isNull();
+  }
+
   // Internal methods.
   // Internal methods.
 
 
   private static ActionSchedule.Builder addSurfaceSwitch(ActionSchedule.Builder builder) {
   private static ActionSchedule.Builder addSurfaceSwitch(ActionSchedule.Builder builder) {