/*

 * 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.

 *

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 */

/* @test

   @bug 4847097

   @summary Check surrogate coverage of EUC_TW

 */

/*

 * Tests the full surrogate mapping roundtrip fidelity of the

 * EUC-TW charset coder updated to support the additional

 * planes 4,5,6,7,15

 *

 * byte->char mappings are contained in external files

 * using plane{x}.surrogate as the convention for the input filenames

 *

 */

import java.io.*;

public class SurrogateTestEUCTW {

    private static final String testRootDir

        = System.getProperty("test.src", ".");

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

        char[] surrogatePair = new char[2];

        int[] expectBytes = new int[4];

        // Iterate test over each supported CNS-11643 plane

        // containing supplementary character mappings

        String[] testPlane = { "3", "4", "5", "6" ,"7", "15" };

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

            FileReader f = new FileReader(testRootDir +

                                          System.getProperty("file.separator")

                                          + "SurrogateTestEUCTW.plane"

                                          + testPlane[i]

                                          + ".surrogates");

            BufferedReader r = new BufferedReader(f);

            String line;

            while ((line = r.readLine()) != null) {

                int charValue = Integer.parseInt(line.substring(9,14), 16);

                surrogatePair[0] = (char) ((charValue - 0x10000) / 0x400

                                    + 0xd800);

                surrogatePair[1] = (char) ((charValue - 0x10000) % 0x400

                                    + 0xdc00);

                // Synthesize 4 byte expected byte values from CNS input values

                expectBytes[0] = 0x8E;

                expectBytes[1] = 0xA0 + Integer.parseInt(testPlane[i]);

                expectBytes[2] = 0x80 | Integer.parseInt(line.substring(2,4), 16);

                expectBytes[3] = 0x80 | Integer.parseInt(line.substring(4,6), 16);

                String testStr = new String(surrogatePair);

                byte[] encodedBytes = testStr.getBytes("EUC-TW");

                for (int x = 0 ; x < 4 ; x++) {

                    if (encodedBytes[x] != (byte)(expectBytes[x] & 0xff)) {

                        throw new Exception("EUC_TW Surrogate Encoder error");

                    }

                }

                // Next: test round-trip fidelity

                String decoded = new String(encodedBytes, "EUC-TW");

                if (!decoded.equals(testStr)) {

                    throw new Exception("EUCTW Decoder error");

                }

            }

            r.close();

            f.close();

        }

    }

}