/*

 * 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 4087261 4184592

 * @summary Make sure to determine Japanese text encoding as correctly

 * as possible.

 * @modules jdk.charsets

 */

import java.nio.charset.*;

import java.nio.*;

public class JISAutoDetectTest {

    class TestData {

        byte[]  input;

        byte[]  input2;                 // for second call

        String  expectedCharset;

    }

    TestData[] data = new TestData[50];

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

        JISAutoDetectTest test =  new JISAutoDetectTest();

        test.execute();

    }

    void execute() throws Exception {

        CharBuffer output = CharBuffer.allocate(128);

        CharBuffer expectedOutput = CharBuffer.allocate(128);

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

            if (data[i] == null)

                break;

            CharsetDecoder autoDetect = Charset.forName("JISAutoDetect").newDecoder();

            CharsetDecoder dec = Charset.forName(data[i].expectedCharset).newDecoder();

            CoderResult ncr, mcr;

            output.clear();

            expectedOutput.clear();

            ncr = autoDetect.decode(ByteBuffer.wrap(data[i].input),

                                    output,

                                    true);

            mcr = dec.decode(ByteBuffer.wrap(data[i].input),

                             expectedOutput,

                             true);

            if (data[i].input2 != null) {

                ncr = autoDetect.decode(ByteBuffer.wrap(data[i].input2),

                                       output,

                                       true);

                mcr = dec.decode(ByteBuffer.wrap(data[i].input2),

                                 expectedOutput,

                                 true);

            }

            String testNumber = " (test#: " + i + ")";

            if (ncr != mcr)

                throw new Exception("JISAutoDetect returned a wrong result");

            output.flip();

            expectedOutput.flip();

            if (output.limit() != expectedOutput.limit())

                throw new Exception("JISAutoDetect returned a wrong length"+testNumber);

            for (int x = 0; x < output.limit(); x++) {

                if (expectedOutput.charAt(x) != output.charAt(x))

                    throw new Exception("JISAutoDetect returned a wrong string"+testNumber);

            }

        }

    }

    public JISAutoDetectTest() {

        int i = 0;

        // 0

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)'C', (byte)'o', (byte)'p', (byte)'y',

                                     (byte)'r', (byte)'i', (byte)'g', (byte)'h',

                                     (byte)'t', (byte)' ', (byte)0xa9, (byte)' ',

                                     (byte)'1', (byte)'9', (byte)'9', (byte)'8' };

        data[i].expectedCharset = "SJIS";

        // 1

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0xbb, (byte)0xdd, (byte)0xcf, (byte)0xb2,

                                     (byte)0xb8, (byte)0xdb, (byte)0xbc, (byte)0xbd,

                                     (byte)0xc3, (byte)0xd1, (byte)0xbd, (byte)0xde,

                                     (byte)0x82, (byte)0xc5, (byte)0x82, (byte)0xb7 };

        data[i].expectedCharset = "SJIS";

        // 2

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0xbb, (byte)0xdd, (byte)0xcf, (byte)0xb2,

                                     (byte)0xb8, (byte)0xdb, (byte)0xbc, (byte)0xbd,

                                     (byte)0xc3, (byte)0xd1, (byte)0xbd, (byte)0xde};

        data[i].expectedCharset = "SJIS";

        // 3

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0xbb, (byte)0xdd, (byte)0xcf, (byte)0xb2,

                                     (byte)0xb8, (byte)0xdb, (byte)0xbc, (byte)0xbd,

                                     (byte)0xc3, (byte)0xd1, (byte)0xbd };

        data[i].expectedCharset = "SJIS";

        // 4

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0x8f, (byte)0xa1, (byte)0xaa };

        data[i].expectedCharset = "SJIS";

        // 5

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0xa4, (byte)0xd2, (byte)0xa4, (byte)0xe9,

                                     (byte)0xa4, (byte)0xac, (byte)0xa4, (byte)0xca };

        data[i].expectedCharset = "EUC_JP";

        // 6

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)0xbb, (byte)0xdd, (byte)0xcf, (byte)0xb2,

                                     (byte)0xb8, (byte)0xdb, (byte)0xbc, (byte)0xbd,

                                     (byte)0xc3, (byte)0xd1, (byte)0xbd, (byte)0xde,

                                     (byte)0xa4, (byte)0xc7, (byte)0xa4, (byte)0xb9 };

        data[i].expectedCharset = "EUC_JP";

        // 7 (for 4184592)

        i++;

        data[i] = new TestData();

        data[i].input = new byte[] { (byte)'a', (byte)'b', (byte)'c' };

        data[i].input2 = new byte[] { (byte)0x1b, (byte)'$', (byte)'B',

                                      (byte)'#', (byte)'4', (byte)'$', (byte)'5',

                                      (byte)0x1b, (byte)'(', (byte)'B' };

        data[i].expectedCharset = "ISO2022JP";

    }

}