Migrate ExoPlayerTest.playShortDurationPeriods to use TestExoPlayer

PiperOrigin-RevId: 323754499

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

@@ -258,20 +258,28 @@ public final class ExoPlayerTest {
     Timeline timeline =
     Timeline timeline =
         new FakeTimeline(new TimelineWindowDefinition(/* periodCount= */ 100, /* id= */ 0));
         new FakeTimeline(new TimelineWindowDefinition(/* periodCount= */ 100, /* id= */ 0));
     FakeRenderer renderer = new FakeRenderer(C.TRACK_TYPE_VIDEO);
     FakeRenderer renderer = new FakeRenderer(C.TRACK_TYPE_VIDEO);
-    ExoPlayerTestRunner testRunner =
-        new ExoPlayerTestRunner.Builder(context)
-            .setTimeline(timeline)
-            .setRenderers(renderer)
-            .build()
-            .start()
-            .blockUntilEnded(TIMEOUT_MS);
-    Integer[] expectedReasons = new Integer[99];
-    Arrays.fill(expectedReasons, Player.DISCONTINUITY_REASON_PERIOD_TRANSITION);
-    testRunner.assertPositionDiscontinuityReasonsEqual(expectedReasons);
-    testRunner.assertTimelinesSame(placeholderTimeline, timeline);
-    testRunner.assertTimelineChangeReasonsEqual(
-        Player.TIMELINE_CHANGE_REASON_PLAYLIST_CHANGED,
-        Player.TIMELINE_CHANGE_REASON_SOURCE_UPDATE);
+    SimpleExoPlayer player = new TestExoPlayer.Builder(context).setRenderers(renderer).build();
+    EventListener mockEventListener = mock(EventListener.class);
+    player.addListener(mockEventListener);
+
+    player.setMediaSource(new FakeMediaSource(timeline, ExoPlayerTestRunner.VIDEO_FORMAT));
+    player.prepare();
+    player.play();
+    runUntilPlaybackState(player, Player.STATE_ENDED);
+
+    InOrder inOrder = inOrder(mockEventListener);
+    inOrder
+        .verify(mockEventListener)
+        .onTimelineChanged(
+            argThat(noUid(placeholderTimeline)),
+            eq(Player.TIMELINE_CHANGE_REASON_PLAYLIST_CHANGED));
+    inOrder
+        .verify(mockEventListener)
+        .onTimelineChanged(
+            argThat(noUid(timeline)), eq(Player.TIMELINE_CHANGE_REASON_SOURCE_UPDATE));
+    inOrder
+        .verify(mockEventListener, times(99))
+        .onPositionDiscontinuity(Player.DISCONTINUITY_REASON_PERIOD_TRANSITION);
     assertThat(renderer.getFormatsRead()).hasSize(100);
     assertThat(renderer.getFormatsRead()).hasSize(100);
     assertThat(renderer.sampleBufferReadCount).isEqualTo(100);
     assertThat(renderer.sampleBufferReadCount).isEqualTo(100);
     assertThat(renderer.isEnded).isTrue();
     assertThat(renderer.isEnded).isTrue();