SubbufferLong.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/* @test
   @summary Test ModelByteBuffer subbuffer(long) method
   @modules java.desktop/com.sun.media.sound
*/

import java.io.File;
import java.io.FileOutputStream;
import java.nio.file.Files;
import java.nio.file.Paths;

import javax.sound.sampled.*;

import com.sun.media.sound.*;

public class SubbufferLong {

    static float[] testarray;
    static byte[] test_byte_array;
    static File test_file;
    static AudioFormat format = new AudioFormat(44100, 16, 1, true, false);

    static void setUp() throws Exception {
        testarray = new float[1024];
        for (int i = 0; i < 1024; i++) {
            double ii = i / 1024.0;
            ii = ii * ii;
            testarray[i] = (float)Math.sin(10*ii*2*Math.PI);
            testarray[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
            testarray[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
            testarray[i] *= 0.3;
        }
        test_byte_array = new byte[testarray.length*2];
        AudioFloatConverter.getConverter(format).toByteArray(testarray, test_byte_array);
        test_file = File.createTempFile("test", ".raw");
        try (FileOutputStream fos = new FileOutputStream(test_file)) {
            fos.write(test_byte_array);
        }
    }

    static void tearDown() throws Exception {
        Files.delete(Paths.get(test_file.getAbsolutePath()));
    }

    public static void main(String[] args) throws Exception {
        try
        {
            setUp();

            for (int i = 0; i < 2; i++) {
                ModelByteBuffer buff;
                if(i == 0)
                    buff = new ModelByteBuffer(test_file);
                else
                    buff = new ModelByteBuffer(test_byte_array);

                ModelByteBuffer buff2 = buff.subbuffer(10);
                if(buff2.getFilePointer() != buff.getFilePointer())
                    throw new RuntimeException("buff2.getFilePointer() incorreect!");
                if(buff2.arrayOffset() != 10)
                    throw new RuntimeException("buff2.arrayOffset() not 10!");
                if(buff2.capacity() != buff.capacity()-10)
                    throw new RuntimeException("buff2.capacity() not correct!");
            }
        }
        finally
        {
            tearDown();
        }
    }

}