@Test
public void testGetBufferedPositionUsReturnsMinimumLoaderBufferedPosition() {

  FakeSequenceableLoader loader1 =
      new FakeSequenceableLoader(/* bufferedPositionUs */ 1000, /* nextLoadPositionUs */ 2000);
  FakeSequenceableLoader loader2 =
      new FakeSequenceableLoader(/* bufferedPositionUs */ 1001, /* nextLoadPositionUs */ 2001);
  CompositeSequenceableLoader compositeSequenceableLoader = new CompositeSequenceableLoader(
      new SequenceableLoader[] {loader1, loader2});
  assertThat(compositeSequenceableLoader.getBufferedPositionUs()).isEqualTo(1000);
}