1 /*
   2  * Copyright (c) 2007, 2015, 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 
  32 import com.sun.media.sound.RIFFReader;
  33 import com.sun.media.sound.RIFFWriter;
  34 
  35 public class Skip {
  36 
  37     private static void assertEquals(Object a, Object b) throws Exception
  38     {
  39         if(!a.equals(b))
  40             throw new RuntimeException("assertEquals fails!");
  41     }
  42 
  43     public static void main(String[] args) throws Exception {
  44         test(false);
  45         test(true);
  46     }
  47 
  48     private static void test(boolean customStream) throws Exception {
  49         RIFFWriter writer = null;
  50         RIFFReader reader = null;
  51         File tempfile = File.createTempFile("test",".riff");
  52         try
  53         {
  54             writer = new RIFFWriter(tempfile, "TEST");
  55             RIFFWriter chunk = writer.writeChunk("TSCH");
  56             chunk.write((byte)33);
  57             chunk.write((byte)44);
  58             writer.close();
  59             writer = null;
  60             final FileInputStream fis;
  61             if (customStream) {
  62                 fis = new FileInputStream(tempfile);
  63             } else {
  64                 fis = new FileInputStream(tempfile) {
  65                     @Override
  66                     public long skip(long n) {
  67                         return 0;
  68                     }
  69                 };
  70             }
  71             reader = new RIFFReader(fis);
  72             RIFFReader readchunk = reader.nextChunk();
  73             reader.skip(1);
  74             assertEquals(readchunk.read(), 44);
  75             fis.close();
  76             reader = null;
  77 
  78 
  79         }
  80         finally
  81         {
  82             if(writer != null)
  83                 writer.close();
  84             if(reader != null)
  85                 reader.close();
  86 
  87             if(tempfile.exists())
  88                 if(!tempfile.delete())
  89                     tempfile.deleteOnExit();
  90         }
  91     }
  92 }