1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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).
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  23 
  24 /* @test
  25    @summary Test ModelStandardTransform transform method 
  26    @modules java.desktop/com.sun.media.sound
  27 */
  28 
  29 import com.sun.media.sound.ModelStandardTransform;
  30 
  31 public class TransformSwitch {
  32 
  33     private static void assertTrue(boolean value) throws Exception
  34     {
  35         if(!value)
  36             throw new RuntimeException("assertTrue fails!");
  37     }
  38 
  39     public static void main(String[] args) throws Exception {
  40         ModelStandardTransform transform = new ModelStandardTransform();
  41         transform.setTransform(ModelStandardTransform.TRANSFORM_SWITCH);
  42 
  43         transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
  44         transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
  45         assertTrue(Math.abs(transform.transform(0.2f) - 0.0f) < 0.0001f);
  46         assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
  47 
  48         transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
  49         transform.setPolarity(ModelStandardTransform.POLARITY_UNIPOLAR);
  50         assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
  51         assertTrue(Math.abs(transform.transform(0.8f) - 0.0f) < 0.0001f);
  52 
  53         transform.setDirection(ModelStandardTransform.DIRECTION_MIN2MAX);
  54         transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
  55         assertTrue(Math.abs(transform.transform(0.2f) + 1.0f) < 0.0001f);
  56         assertTrue(Math.abs(transform.transform(0.8f) - 1.0f) < 0.0001f);
  57 
  58         transform.setDirection(ModelStandardTransform.DIRECTION_MAX2MIN);
  59         transform.setPolarity(ModelStandardTransform.POLARITY_BIPOLAR);
  60         assertTrue(Math.abs(transform.transform(0.2f) - 1.0f) < 0.0001f);
  61         assertTrue(Math.abs(transform.transform(0.8f) + 1.0f) < 0.0001f);
  62     }
  63 }