/*

 * Copyright (c) 2010, 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 6955504 6992121

 * @summary Test the StringBuilder.ensureCapacity() with negative minimumCapacity

 *    and append() method with negative length input argument.

 *    Also, test the StringBuffer class.

 */

import java.util.ArrayList;

import java.util.Vector;

public class EnsureCapacity {

    public static void main(String[] args) {

        testStringBuilder();

        testStringBuffer();

    }

    private static void checkCapacity(int before, int after) {

        if (before != after) {

            throw new RuntimeException("capacity is expected to be unchanged: " +

                "before=" + before + " after=" + after);

        }

    }

    private static void testStringBuilder() {

        StringBuilder sb = new StringBuilder("abc");

        int cap = sb.capacity();

        // test if negative minimumCapacity

        sb.ensureCapacity(Integer.MIN_VALUE);

        checkCapacity(cap, sb.capacity());

        try {

            char[] str = {'a', 'b', 'c', 'd'};

            // test if negative length

            sb.append(str, 0, Integer.MIN_VALUE + 10);

            throw new RuntimeException("IndexOutOfBoundsException not thrown");

        } catch (IndexOutOfBoundsException ex) {

        }

    }

    private static void testStringBuffer() {

        StringBuffer sb = new StringBuffer("abc");

        int cap = sb.capacity();

        // test if negative minimumCapacity

        sb.ensureCapacity(Integer.MIN_VALUE);

        checkCapacity(cap, sb.capacity());

        try {

            char[] str = {'a', 'b', 'c', 'd'};

            // test if negative length

            sb.append(str, 0, Integer.MIN_VALUE + 10);

            throw new RuntimeException("IndexOutOfBoundsException not thrown");

        } catch (IndexOutOfBoundsException ex) {

        }

    }

}