/*

 * Copyright (c) 2008, 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 4251646

   @summary Make sure buffer boundary convert works

 */

import java.nio.*;

import java.nio.charset.*;

public class TestISO2022JPEncoder {

    static char[] inputChars = {'\u0020', '\u0020', '\u0020', '\u0020',

                                '\u0020', '\u0020', '\u0020', '\u0020',

                                '\u0020', '\u4e00'};

    static byte[] expectedBytes1 = {0x20, 0x20, 0x20, 0x20, 0x20,

                                    0x20, 0x20, 0x20, 0x20};

    static byte[] expectedBytes2 = {0x1b, 0x24, 0x42, 0x30, 0x6c,

                                    0x1b, 0x28, 0x42};

    static byte[] outputBuff = new byte[10];

    public static void main(String args[]) throws Exception {

        CharsetEncoder enc = Charset.forName("ISO2022JP").newEncoder();

        CharBuffer cb = CharBuffer.wrap(inputChars);

        ByteBuffer bb = ByteBuffer.wrap(outputBuff);

        CoderResult cr = enc.encode(cb, bb, false);

        if (!cr.isOverflow())

            throw new Exception("Expected CodeResult.OVERFLOW was not returned");

        for (int i = 0; i < expectedBytes1.length; ++i) {

            //System.out.println(expectedBytes1[i] + ":" + outputBuff[i]);

            if (expectedBytes1[i] != outputBuff[i]) {

                throw new Exception("Output bytes does not match at first conversion");

            }

        }

        int nci = cb.position();

        if (nci != expectedBytes1.length)

            throw new Exception("Output length does not match at first conversion");

        bb.clear();

        cr = enc.encode(cb, bb, true);

        enc.flush(bb);

        //System.out.println(ret + "," + expectedBytes2.length);

        bb.flip();

        int len = bb.remaining();

        if (len != expectedBytes2.length)

            throw new Exception("Output length does not match at second conversion");

        for (int i = 0; i < expectedBytes2.length; ++i) {

            //System.out.println(expectedBytes2[i] + ":" + outputBuff[i]);

            if (expectedBytes2[i] != outputBuff[i]) {

                throw new Exception("Output bytes does not match at second conversion");

            }

        }

    }

}