/*

 * 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

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 * questions.

 */

/* @test

   @bug 6431650

   @summary Check charset ISCII91 and C2B/B2CISCII91 yield same encoding/decoding result

 */

import java.nio.*;

import java.nio.charset.*;

import sun.io.*;

public class TestISCII91 {

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

        CharToByteConverter c2b = new CharToByteISCII91();

        ByteToCharConverter b2c = new ByteToCharISCII91();

        Charset cs = Charset.forName("ISCII91");

        String charsToEncode = getCharsForEncoding("ISCII91");

        byte [] c2bBytes = c2b.convertAll(charsToEncode.toCharArray());

        byte [] csBytes = cs.encode(charsToEncode).array();

        for (int i = 0; i < c2bBytes.length; ++i) {

            if (c2bBytes[i] != csBytes[i])

                throw new RuntimeException("ISCII91 encoding failed!");

        }

        char[] c2bChars = b2c.convertAll(c2bBytes);

        char[] csChars = cs.decode(ByteBuffer.wrap(csBytes)).array();

        for (int i = 0; i < c2bChars.length; ++i) {

            if (c2bChars[i] != csChars[i])

                throw new RuntimeException("ISCII91 decoding failed!");

        }

    }

    static String getCharsForEncoding(String encodingName)

        throws CharacterCodingException{

        Charset set = Charset.forName(encodingName);

        CharBuffer chars = CharBuffer.allocate(300);

        CharsetEncoder encoder = set.newEncoder();

        for (int c = 0; chars.remaining() > 0 && c < Character.MAX_VALUE; ++c) {

            if (Character.isDefined((char) c) && !Character.isISOControl((char) c) && encoder.canEncode((char) c)) {

                chars.put((char) c);

            }

        }

        chars.limit(chars.position());

        chars.rewind();

        return chars.toString();

    }

}