content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.google.android.exoplayer2.extractor.ts;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import androidx.test.core.app.ApplicationProvider;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.extractor.Extractor;
  import com.google.android.exoplayer2.extractor.PositionHolder;
  import com.google.android.exoplayer2.testutil.FakeExtractorInput;
  import com.google.android.exoplayer2.testutil.TestUtil;
  import java.io.IOException;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Unit test for {@link TsDurationReader}. */
  @RunWith(AndroidJUnit4.class)
  public final class TsDurationReaderTest {
  
    private TsDurationReader tsDurationReader;
    private PositionHolder seekPositionHolder;
  
    @Before
    public void setUp() {
      tsDurationReader = new TsDurationReader(TsExtractor.DEFAULT_TIMESTAMP_SEARCH_BYTES);
      seekPositionHolder = new PositionHolder();
    }
  
    @Test
    public void isDurationReadPending_returnFalseByDefault() {
      assertThat(tsDurationReader.isDurationReadFinished()).isFalse();
    }
  
    @Test
    public void readDuration_returnsCorrectDuration() throws IOException, InterruptedException {
      FakeExtractorInput input =
          new FakeExtractorInput.Builder()
              .setData(
                  TestUtil.getByteArray(
                      ApplicationProvider.getApplicationContext(), "media/ts/bbb_2500ms.ts"))
              .setSimulateIOErrors(false)
              .setSimulateUnknownLength(false)
              .setSimulatePartialReads(false)
              .build();
  
      while (!tsDurationReader.isDurationReadFinished()) {
        int result = tsDurationReader.readDuration(input, seekPositionHolder, /* pcrPid= */ 256);
        if (result == Extractor.RESULT_END_OF_INPUT) {
          break;
        }
        if (result == Extractor.RESULT_SEEK) {
          input.setPosition((int) seekPositionHolder.position);
        }
      }
      assertThat(tsDurationReader.getDurationUs() / 1000).isEqualTo(2500);
    }
  
    @Test
    public void readDuration_midStream_returnsCorrectDuration() throws IOException {
      FakeExtractorInput input =
          new FakeExtractorInput.Builder()
              .setData(
                  TestUtil.getByteArray(
                      ApplicationProvider.getApplicationContext(), "media/ts/bbb_2500ms.ts"))
              .setSimulateIOErrors(false)
              .setSimulateUnknownLength(false)
              .setSimulatePartialReads(false)
              .build();
  
      input.setPosition(1234);
      while (!tsDurationReader.isDurationReadFinished()) {
        int result = tsDurationReader.readDuration(input, seekPositionHolder, /* pcrPid= */ 256);
        if (result == Extractor.RESULT_END_OF_INPUT) {
          break;
        }
        if (result == Extractor.RESULT_SEEK) {
          input.setPosition((int) seekPositionHolder.position);
        }
      }
      assertThat(tsDurationReader.getDurationUs() / 1000).isEqualTo(2500);
    }
  }
  