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.upstream.cache;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.util.Util;
  import java.io.ByteArrayOutputStream;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Tests {@link ReusableBufferedOutputStream}. */
  @RunWith(AndroidJUnit4.class)
  public final class ReusableBufferedOutputStreamTest {
  
    private static final byte[] TEST_DATA_1 = Util.getUtf8Bytes("test data 1");
    private static final byte[] TEST_DATA_2 = Util.getUtf8Bytes("2 test data");
  
    @Test
    public void reset() throws Exception {
      ByteArrayOutputStream byteArrayOutputStream1 = new ByteArrayOutputStream(1000);
      ReusableBufferedOutputStream outputStream =
          new ReusableBufferedOutputStream(byteArrayOutputStream1, 1000);
      outputStream.write(TEST_DATA_1);
      outputStream.close();
  
      ByteArrayOutputStream byteArrayOutputStream2 = new ByteArrayOutputStream(1000);
      outputStream.reset(byteArrayOutputStream2);
      outputStream.write(TEST_DATA_2);
      outputStream.close();
  
      assertThat(byteArrayOutputStream1.toByteArray()).isEqualTo(TEST_DATA_1);
      assertThat(byteArrayOutputStream2.toByteArray()).isEqualTo(TEST_DATA_2);
    }
  }
  