content: /*
   * Copyright (C) 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.decoder;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Unit tests for {@link CryptoInfo} */
  @RunWith(AndroidJUnit4.class)
  public class CryptoInfoTest {
  
    private CryptoInfo cryptoInfo;
  
    @Before
    public void setUp() {
      cryptoInfo = new CryptoInfo();
    }
  
    @Test
    public void increaseClearDataFirstSubSampleBy_numBytesOfClearDataIsNullAndZeroInput_isNoOp() {
      cryptoInfo.increaseClearDataFirstSubSampleBy(0);
  
      assertThat(cryptoInfo.numBytesOfClearData).isNull();
      assertThat(cryptoInfo.getFrameworkCryptoInfo().numBytesOfClearData).isNull();
    }
  
    @Test
    public void increaseClearDataFirstSubSampleBy_withNumBytesOfClearDataSetAndZeroInput_isNoOp() {
      int[] data = new int[] {1, 1, 1, 1};
      cryptoInfo.numBytesOfClearData = data;
      cryptoInfo.getFrameworkCryptoInfo().numBytesOfClearData = data;
  
      cryptoInfo.increaseClearDataFirstSubSampleBy(5);
  
      assertThat(cryptoInfo.numBytesOfClearData[0]).isEqualTo(6);
      assertThat(cryptoInfo.getFrameworkCryptoInfo().numBytesOfClearData[0]).isEqualTo(6);
    }
  
    @Test
    public void increaseClearDataFirstSubSampleBy_withSharedClearDataPointer_setsValue() {
      int[] data = new int[] {1, 1, 1, 1};
      cryptoInfo.numBytesOfClearData = data;
      cryptoInfo.getFrameworkCryptoInfo().numBytesOfClearData = data;
  
      cryptoInfo.increaseClearDataFirstSubSampleBy(5);
  
      assertThat(cryptoInfo.numBytesOfClearData[0]).isEqualTo(6);
      assertThat(cryptoInfo.getFrameworkCryptoInfo().numBytesOfClearData[0]).isEqualTo(6);
    }
  }
  