/*

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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.

 *

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 */

/*

 * @test

 * @bug 7003643

 * @summary Make sure MessageFormat.toPattern produces correct quoting. (SPI part is tested in PluggableLocale tests.)

 */

import java.text.*;

import java.util.*;

public class Bug7003643 {

    private static final int N = 5;

    private static final String[] elements = {

        "'{'", "'{", "{", "''", "}", "a", "'",

    };

    public static void main(String[] args) {

        Random rand = new Random();

        int count = 0;

        int max = (int) (Math.pow((double)elements.length, (double)N)/0.52);

        while (count < max) {

            // Create a random pattern. If the produced pattern is

            // valid, then proceed with the round-trip testing.

            StringBuilder sb = new StringBuilder();

            for (int i = 0; i < N; i++) {

                sb.append(elements[rand.nextInt(elements.length)]);

            }

            String pattern = sb.toString();

            MessageFormat mf = null;

            try {

                mf = new MessageFormat(pattern);

            } catch (IllegalArgumentException e) {

                // bad pattern data

            }

            if (mf == null) {

                continue;

            }

            count++;

            String res1 = MessageFormat.format(pattern, 123);

            String toPattern = mf.toPattern();

            String res2 = MessageFormat.format(toPattern, 123);

            if (!res1.equals(res2)) {

                String s = String.format("Failed%n      pattern=\"%s\"  =>  result=\"%s\"%n"

                                         + "  toPattern()=\"%s\"  =>  result=\"%s\"%n",

                                         pattern, res1, toPattern, res2);

                throw new RuntimeException(s);

            }

        }

    }

}