content: /*
   * Copyright 2007-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * or in the "license" file accompanying this file. This file 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.amazon.ion.streaming;
  
  import static com.amazon.ion.impl._Private_Utils.EMPTY_BYTE_ARRAY;
  import static com.amazon.ion.impl._Private_Utils.utf8;
  
  import com.amazon.ion.InputStreamWrapper;
  import com.amazon.ion.IonType;
  import com.amazon.ion.ReaderMaker;
  import com.amazon.ion.junit.Injected.Inject;
  import java.io.FilterInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import org.junit.Test;
  
  
  public class InputStreamReaderTest
      extends ReaderTestCase
      implements InputStreamWrapper
  {
      class CloseWatchingInputStream extends FilterInputStream
      {
          protected CloseWatchingInputStream(InputStream in)
          {
              super(in);
          }
  
          boolean closed = false;
  
          @Override
          public void close() throws IOException
          {
              assertFalse("stream already closed", closed);
              closed = true;
              super.close();
          }
      }
  
  
      private CloseWatchingInputStream myWatcher;
  
      public InputStream wrap(InputStream in)
      {
          myWatcher = new CloseWatchingInputStream(in);
          return myWatcher;
      }
  
      @Inject("readerMaker")
      public static final ReaderMaker[] READER_MAKERS =
          ReaderMaker.valuesWith(ReaderMaker.Feature.STREAM);
  
  
      //=========================================================================
      // Test cases
  
      @Test
      public void testClosingStream()
      throws Exception
      {
          byte[] utf8 = utf8("test");
          read(utf8, this);
          assertSame(IonType.SYMBOL, in.next());
          in.close();
          assertTrue("stream not closed", myWatcher.closed);
      }
  
      @Test
      public void testClosingEmptyStream()
      throws Exception
      {
          read(EMPTY_BYTE_ARRAY, this);
          assertSame(null, in.next());
          in.close();
          assertTrue("stream not closed", myWatcher.closed);
      }
  }
  