content: /*
   * Copyright (C) 2016 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.ogg;
  
  import static com.google.android.exoplayer2.testutil.TestUtil.getByteArray;
  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.C;
  import com.google.android.exoplayer2.extractor.PositionHolder;
  import com.google.android.exoplayer2.testutil.ExtractorAsserts;
  import com.google.android.exoplayer2.testutil.FakeExtractorInput;
  import com.google.android.exoplayer2.testutil.FakeExtractorOutput;
  import java.io.IOException;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /**
   * Tests for {@link OggExtractor} that test specific behaviours and don't need to be parameterized.
   *
   * <p>For parameterized tests using {@link ExtractorAsserts} see {@link
   * OggExtractorParameterizedTest}.
   */
  @RunWith(AndroidJUnit4.class)
  public final class OggExtractorNonParameterizedTest {
  
    @Test
    public void read_afterEndOfInput_doesNotThrowIllegalState() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/bear_flac.ogg");
      FakeExtractorInput input = new FakeExtractorInput.Builder().setData(data).build();
      OggExtractor oggExtractor = new OggExtractor();
      oggExtractor.init(new FakeExtractorOutput());
      // We feed data to the extractor until the end of input is reached.
      while (oggExtractor.read(input, new PositionHolder()) != C.RESULT_END_OF_INPUT) {}
      // We call read again to check that it does not throw an IllegalStateException.
      assertThat(oggExtractor.read(input, new PositionHolder())).isEqualTo(C.RESULT_END_OF_INPUT);
    }
  
    @Test
    public void sniffVorbis() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/vorbis_header");
      assertSniff(data, /* expectedResult= */ true);
    }
  
    @Test
    public void sniffFlac() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/flac_header");
      assertSniff(data, /* expectedResult= */ true);
    }
  
    @Test
    public void sniffFailsOpusFile() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/opus_header");
      assertSniff(data, /* expectedResult= */ false);
    }
  
    @Test
    public void sniffFailsInvalidOggHeader() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/invalid_ogg_header");
      assertSniff(data, /* expectedResult= */ false);
    }
  
    @Test
    public void sniffInvalidHeader() throws Exception {
      byte[] data =
          getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/invalid_header");
      assertSniff(data, /* expectedResult= */ false);
    }
  
    @Test
    public void sniffFailsEOF() throws Exception {
      byte[] data = getByteArray(ApplicationProvider.getApplicationContext(), "media/ogg/eof_header");
      assertSniff(data, /* expectedResult= */ false);
    }
  
    private void assertSniff(byte[] data, boolean expectedResult) throws IOException {
      FakeExtractorInput input =
          new FakeExtractorInput.Builder()
              .setData(data)
              .setSimulateIOErrors(true)
              .setSimulateUnknownLength(true)
              .setSimulatePartialReads(true)
              .build();
      ExtractorAsserts.assertSniff(new OggExtractor(), input, expectedResult);
    }
  }
  