/*

 * Copyright 2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * @test

 * @bug     4822887

 * @summary Basic test for Collections.addAll

 * @author  Josh Bloch

 *

 * @compile -source 1.5 AddAll.java

 * @run main AddAll

 */

import java.util.*;

public class AddAll {

    final static int N = 100;

    public static void main(String args[]) {

        test(new ArrayList<Integer>());

        test(new LinkedList<Integer>());

        test(new HashSet<Integer>());

        test(new LinkedHashSet<Integer>());

    }

    private static Random rnd = new Random();

    static void test(Collection<Integer> c) {

        int x = 0;

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

            int rangeLen = rnd.nextInt(10);

            if (Collections.addAll(c, range(x, x + rangeLen)) !=

                (rangeLen != 0))

                throw new RuntimeException("" + rangeLen);

            x += rangeLen;

        }

        if (c instanceof List) {

            if (!c.equals(Arrays.asList(range(0, x))))

                throw new RuntimeException(x +": "+c);

        } else {

            if (!c.equals(new HashSet<Integer>(Arrays.asList(range(0, x)))))

                throw new RuntimeException(x +": "+c);

        }

    }

    private static Integer[] range(int from, int to) {

        Integer[] result = new Integer[to - from];

        for (int i = from, j=0; i < to; i++, j++)

            result[j] = new Integer(i);

        return result;

    }

}