xref: /openjdk10/jdk/test/javax/sound/midi/Gervill/SoftSynthesizer/UnloadAllInstruments.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 */

/* @test
   @summary Test SoftSynthesizer unloadAllInstruments method */

import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Patch;
import javax.sound.midi.Soundbank;
import javax.sound.sampled.*;
import javax.sound.midi.MidiDevice.Info;

import com.sun.media.sound.*;

public class UnloadAllInstruments {

    private static void assertEquals(Object a, Object b) throws Exception
    {
        if(!a.equals(b))
            throw new RuntimeException("assertEquals fails!");
    }

    private static void assertTrue(boolean value) throws Exception
    {
        if(!value)
            throw new RuntimeException("assertTrue fails!");
    }

    public static void main(String[] args) throws Exception {
        AudioSynthesizer synth = new SoftSynthesizer();
        synth.openStream(null, null);
        Soundbank defsbk = synth.getDefaultSoundbank();
        if(defsbk != null)
        {
            synth.unloadAllInstruments(defsbk);
            assertTrue(synth.getLoadedInstruments().length == 0);
            synth.loadAllInstruments(defsbk);
            assertTrue(synth.getLoadedInstruments().length != 0);
            synth.unloadAllInstruments(defsbk);
            assertTrue(synth.getLoadedInstruments().length == 0);
        }
        synth.close();

    }
}