jdk/test/javax/sound/midi/Gervill/RiffReaderWriter/Skip.java
author serb
Sun, 27 Sep 2015 00:51:27 +0300
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child 45341 b7cc7f639ecf
permissions -rw-r--r--
8135160: Endless Loop in RiffReader Reviewed-by: prr, amenkov
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/*
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 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/* @test
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   @summary Test RiffReader skip method
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   @modules java.desktop/com.sun.media.sound
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*/
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import java.io.File;
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import java.io.FileInputStream;
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import com.sun.media.sound.RIFFReader;
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import com.sun.media.sound.RIFFWriter;
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public class Skip {
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    private static void assertEquals(Object a, Object b) throws Exception
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    {
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        if(!a.equals(b))
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            throw new RuntimeException("assertEquals fails!");
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    }
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    public static void main(String[] args) throws Exception {
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        test(false);
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        test(true);
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    }
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    private static void test(boolean customStream) throws Exception {
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        RIFFWriter writer = null;
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        RIFFReader reader = null;
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        File tempfile = File.createTempFile("test",".riff");
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        try
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        {
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            writer = new RIFFWriter(tempfile, "TEST");
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            RIFFWriter chunk = writer.writeChunk("TSCH");
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            chunk.write((byte)33);
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            chunk.write((byte)44);
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            writer.close();
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            writer = null;
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            final FileInputStream fis;
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            if (customStream) {
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                fis = new FileInputStream(tempfile);
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            } else {
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                fis = new FileInputStream(tempfile) {
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                    @Override
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                    public long skip(long n) {
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                        return 0;
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                    }
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                };
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            }
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            reader = new RIFFReader(fis);
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            RIFFReader readchunk = reader.nextChunk();
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            reader.skip(1);
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            assertEquals(readchunk.read(), 44);
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            fis.close();
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            reader = null;
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        }
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        finally
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        {
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            if(writer != null)
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                writer.close();
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            if(reader != null)
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                reader.close();
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            if(tempfile.exists())
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                if(!tempfile.delete())
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                    tempfile.deleteOnExit();
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        }
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    }
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}