1 /*
   2  * Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25    @summary Test RiffReader skip method
  26    @modules java.desktop/com.sun.media.sound
  27 */
  28 
  29 import java.io.File;
  30 import java.io.FileInputStream;
  31 import java.nio.file.Files;
  32 import java.nio.file.Paths;
  33 
  34 import com.sun.media.sound.RIFFReader;
  35 import com.sun.media.sound.RIFFWriter;
  36 
  37 public class Skip {
  38 
  39     private static void assertEquals(Object a, Object b) throws Exception
  40     {
  41         if(!a.equals(b))
  42             throw new RuntimeException("assertEquals fails!");
  43     }
  44 
  45     public static void main(String[] args) throws Exception {
  46         test(false);
  47         test(true);
  48     }
  49 
  50     private static void test(boolean customStream) throws Exception {
  51         RIFFWriter writer = null;
  52         RIFFReader reader = null;
  53         File tempfile = File.createTempFile("test",".riff");
  54         try
  55         {
  56             writer = new RIFFWriter(tempfile, "TEST");
  57             RIFFWriter chunk = writer.writeChunk("TSCH");
  58             chunk.write((byte)33);
  59             chunk.write((byte)44);
  60             writer.close();
  61             writer = null;
  62             final FileInputStream fis;
  63             if (customStream) {
  64                 fis = new FileInputStream(tempfile);
  65             } else {
  66                 fis = new FileInputStream(tempfile) {
  67                     @Override
  68                     public long skip(long n) {
  69                         return 0;
  70                     }
  71                 };
  72             }
  73             reader = new RIFFReader(fis);
  74             RIFFReader readchunk = reader.nextChunk();
  75             reader.skip(1);
  76             assertEquals(readchunk.read(), 44);
  77             fis.close();
  78             reader = null;
  79         }
  80         finally
  81         {
  82             if(writer != null)
  83                 writer.close();
  84             if(reader != null)
  85                 reader.close();
  86             Files.delete(Paths.get(tempfile.getAbsolutePath()));
  87         }
  88     }
  89 }