/*

 * Copyright (c) 2018, 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 4734607 4767225 4863613

 * @summary Decode a file using EUC-TW, test for decode errors

 * @modules jdk.charsets

 * @run main EUCTWBufferBoundaryDecodeTest

 */

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

/*

 * Tests for decode errors in NIO EUC-TW decoder. 4734607 details

 * decoding errors which occur when the input file > 8k in size

 * and contains numerous US-ASCII range chars

 */

public class EUCTWBufferBoundaryDecodeTest {

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

        final String inputFileName

                = System.getProperty("os.name").startsWith("Windows")

                ? "tradChinese.win.po"

                : "tradChinese.po";

        ByteArrayOutputStream bos = new ByteArrayOutputStream(1024 * 120);

        File inputFile = new File(System.getProperty("test.src"), inputFileName);

        FileInputStream fis = new FileInputStream(inputFile);

        // Decode the EUC_TW source file, re-encode it -- (roundtrip)

        // input and output files ought to be byte for byte identical

        BufferedReader bin

                = new BufferedReader(new InputStreamReader(fis, "EUC_TW"));

        BufferedWriter bout

                = new BufferedWriter(new OutputStreamWriter(bos, "EUC-TW"));

        String line = bin.readLine();

        while (line != null) {

            bout.write(line);

            bout.newLine();

            line = bin.readLine();

        }

        bout.close();

        bin.close();

        // Compare the output with the expected output byte by byte

        byte[] outputBytes = bos.toByteArray();

        int i = 0;

        FileInputStream fi = new FileInputStream(inputFile);

        while (i < outputBytes.length) {

            byte b = (byte) fi.read();

            if (b != outputBytes[i++]) {

                throw new Exception("bug 4734607: test failed");

            }

        }

        fi.close();

    }

}