content: /*
   * Copyright 2020 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.audio;
  
  import static org.mockito.Mockito.verify;
  
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.C;
  import com.google.android.exoplayer2.audio.AudioProcessor.AudioFormat;
  import com.google.android.exoplayer2.audio.TeeAudioProcessor.AudioBufferSink;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.Mock;
  import org.mockito.junit.MockitoJUnit;
  import org.mockito.junit.MockitoRule;
  
  /** Unit tests for {@link TeeAudioProcessorTest}. */
  @RunWith(AndroidJUnit4.class)
  public final class TeeAudioProcessorTest {
  
    private static final AudioFormat AUDIO_FORMAT =
        new AudioFormat(/* sampleRate= */ 44100, /* channelCount= */ 2, C.ENCODING_PCM_16BIT);
  
    @Rule public final MockitoRule mockito = MockitoJUnit.rule();
  
    private TeeAudioProcessor teeAudioProcessor;
  
    @Mock private AudioBufferSink mockAudioBufferSink;
  
    @Before
    public void setUp() {
      teeAudioProcessor = new TeeAudioProcessor(mockAudioBufferSink);
    }
  
    @Test
    public void initialFlush_flushesSink() throws Exception {
      teeAudioProcessor.configure(AUDIO_FORMAT);
      teeAudioProcessor.flush();
  
      verify(mockAudioBufferSink)
          .flush(AUDIO_FORMAT.sampleRate, AUDIO_FORMAT.channelCount, AUDIO_FORMAT.encoding);
    }
  }
  