content: /*
   * 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 io.airlift.compress.v3.gzip;
  
  import com.google.common.io.ByteStreams;
  import org.junit.jupiter.api.Test;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.io.SequenceInputStream;
  import java.util.zip.GZIPOutputStream;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  class TestJdkGzipHadoopInputStream
  {
      @Test
      void testGzipInputStreamBug()
              throws IOException
      {
          byte[] part1 = zip("hello ".getBytes());
          byte[] part2 = zip("world".getBytes());
  
          InputStream compressed = new SequenceInputStream(new ByteArrayInputStream(part1), new ByteArrayInputStream(part2));
          byte[] data = ByteStreams.toByteArray(new JdkGzipHadoopStreams().createInputStream(compressed));
  
          assertThat(data).isEqualTo("hello world".getBytes());
      }
  
      private static byte[] zip(byte[] data)
              throws IOException
      {
          ByteArrayOutputStream out = new ByteArrayOutputStream();
          try (OutputStream gzipOut = new GZIPOutputStream(out)) {
              gzipOut.write(data);
          }
          return out.toByteArray();
      }
  }
  