/*

 * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.

 * 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

 * @bug 4429365

 * @summary Checks that ImageReadParam.setSourceProgressivePasses handles

 *          overflow correctly

 */

import javax.imageio.ImageReadParam;

public class ImageReadParamPasses {

    private static final int maxint = Integer.MAX_VALUE;

    private static void expect(int i, int j) {

        if (i != j) {

            throw new RuntimeException("Expected " + i + ", got " + j);

        }

    }

    private static void checkForIAE(int minPass, int numPasses) {

        ImageReadParam param = new ImageReadParam();

        boolean gotIAE = false;

        try {

            param.setSourceProgressivePasses(minPass, numPasses);

        } catch (IllegalArgumentException iae) {

            gotIAE = true;

        }

        if (!gotIAE) {

            throw new RuntimeException("Failed to get IAE for wraparound!");

        }

    }

    private static void test(int minPass, int numPasses) {

        ImageReadParam param = new ImageReadParam();

        param.setSourceProgressivePasses(minPass, numPasses);

        expect(param.getSourceMinProgressivePass(), minPass);

        expect(param.getSourceNumProgressivePasses(), numPasses);

        int maxPass = numPasses == maxint ? maxint : minPass + numPasses - 1;

        expect(param.getSourceMaxProgressivePass(), maxPass);

    }

    public static void main(String[] args) {

        // Typical case

        test(17, 30);

        // Read all passes

        test(0, maxint);

        // Start at pass 17, continue indefinitely

        test(17, maxint);

        // Start at pass maxint - 10, continue indefinitely

        test(maxint - 10, maxint);

        // Start at pass maxint - 10, go up to maxint - 1

        test(maxint - 10, 10);

        // Start at pass maxint - 10, go up to maxint

        test(maxint - 10, 11);

        // Start at maxint, continue indefinitely :-)

        test(maxint, maxint);

        // Start at maxint, go up to maxint

        test(maxint, 1);

        // Check that an IllegalArgumentException is thrown if

        // wraparound occurs

        checkForIAE(maxint, 2);

        checkForIAE(maxint - 5, 10);

        checkForIAE(10, maxint - 5);

        checkForIAE(maxint - 1000, maxint - 1000);

        checkForIAE(maxint - 1, maxint - 1);

    }

}