Don't always wait for action schedule in ExoPlayerTestRunner.

Unconditionally waiting for the action schedule to finish in ExoPlayerTestRunner
doesn't work if the action schedule is not intended to be finished.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177024139

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

@@ -65,7 +65,7 @@ public final class ExoPlayerTest extends TestCase {
         .build();
         .build();
     ExoPlayerTestRunner testRunner = new ExoPlayerTestRunner.Builder()
     ExoPlayerTestRunner testRunner = new ExoPlayerTestRunner.Builder()
         .setTimeline(timeline).setRenderers(renderer).setActionSchedule(actionSchedule)
         .setTimeline(timeline).setRenderers(renderer).setActionSchedule(actionSchedule)
-        .build().start().blockUntilEnded(TIMEOUT_MS);
+        .build().start().blockUntilActionScheduleFinished(TIMEOUT_MS).blockUntilEnded(TIMEOUT_MS);
     testRunner.assertNoPositionDiscontinuities();
     testRunner.assertNoPositionDiscontinuities();
     testRunner.assertTimelinesEqual(timeline);
     testRunner.assertTimelinesEqual(timeline);
     assertEquals(0, renderer.formatReadCount);
     assertEquals(0, renderer.formatReadCount);

testutils/src/main/java/com/google/android/exoplayer2/testutil/ExoPlayerTestRunner.java

@@ -17,7 +17,6 @@ package com.google.android.exoplayer2.testutil;
 
 
 import android.os.Handler;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.HandlerThread;
-import android.os.SystemClock;
 import android.support.annotation.Nullable;
 import android.support.annotation.Nullable;
 import com.google.android.exoplayer2.DefaultLoadControl;
 import com.google.android.exoplayer2.DefaultLoadControl;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlaybackException;
@@ -405,9 +404,9 @@ public final class ExoPlayerTestRunner extends Player.DefaultEventListener
 
 
   /**
   /**
    * Blocks the current thread until the test runner finishes. A test is deemed to be finished when
    * Blocks the current thread until the test runner finishes. A test is deemed to be finished when
-   * the action schedule finished and the playback state transitioned to {@link Player#STATE_ENDED}
-   * or {@link Player#STATE_IDLE} for the specified number of times. The test also finishes when an
-   * {@link ExoPlaybackException} is thrown.
+   * the playback state transitioned to {@link Player#STATE_ENDED} or {@link Player#STATE_IDLE} for
+   * the specified number of times. The test also finishes when an {@link ExoPlaybackException} is
+   * thrown.
    *
    *
    * @param timeoutMs The maximum time to wait for the test runner to finish. If this time elapsed
    * @param timeoutMs The maximum time to wait for the test runner to finish. If this time elapsed
    *     the method will throw a {@link TimeoutException}.
    *     the method will throw a {@link TimeoutException}.
@@ -415,13 +414,6 @@ public final class ExoPlayerTestRunner extends Player.DefaultEventListener
    * @throws Exception If any exception occurred during playback, release, or due to a timeout.
    * @throws Exception If any exception occurred during playback, release, or due to a timeout.
    */
    */
   public ExoPlayerTestRunner blockUntilEnded(long timeoutMs) throws Exception {
   public ExoPlayerTestRunner blockUntilEnded(long timeoutMs) throws Exception {
-    long deadlineMs = SystemClock.elapsedRealtime() + timeoutMs;
-    try {
-      blockUntilActionScheduleFinished(timeoutMs);
-    } catch (TimeoutException error) {
-      exception = error;
-    }
-    timeoutMs = Math.max(0, deadlineMs - SystemClock.elapsedRealtime());
     if (!endedCountDownLatch.await(timeoutMs, TimeUnit.MILLISECONDS)) {
     if (!endedCountDownLatch.await(timeoutMs, TimeUnit.MILLISECONDS)) {
       exception = new TimeoutException("Test playback timed out waiting for playback to end.");
       exception = new TimeoutException("Test playback timed out waiting for playback to end.");
     }
     }