jdk-24/test/jdk/java/awt/AlphaComposite/TestAlphaCompositeForNaN.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
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

/*
 * @test
 * @bug 6918065
 * @summary Test for passing NaN as alpha
 *          should throw IllegalArgumentException
 */

import java.awt.*;

public class TestAlphaCompositeForNaN {
  public static void main(String[] args) {
    try {
      AlphaComposite a = AlphaComposite.getInstance(AlphaComposite.DST, Float.NaN);
      System.out.println("Failed");
      throw new RuntimeException(a + " failed to throw IllegalArgumentException for alpha = " + Float.NaN);
    }
    catch (IllegalArgumentException ie) {
      System.out.println("Passed");
      System.out.println("Caught " + ie);
    }
  }
}