/*

 * 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 6378295

 * @summary Roundtrip Encoding/Decoding of ASCII chars from 0x00-0x7f

 */

import java.util.*;

import java.nio.*;

import java.nio.charset.*;

public class FindASCIIRangeCodingBugs {

    private static int failures = 0;

    private static byte[] asciiBytes = new byte[0x80];

    private static char[] asciiChars = new char[0x80];

    private static String asciiString;

    private static void check(String csn) throws Exception {

        System.out.println(csn);

        if (! Arrays.equals(asciiString.getBytes(csn), asciiBytes)) {

            System.out.printf("%s -> bytes%n", csn);

            failures++;

        }

        if (! new String(asciiBytes, csn).equals(asciiString)) {

            System.out.printf("%s -> chars%n", csn);

            failures++;

        }

    }

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

        for (int i = 0; i < 0x80; i++) {

            asciiBytes[i] = (byte) i;

            asciiChars[i] = (char) i;

        }

        asciiString = new String(asciiChars);

        Charset ascii = Charset.forName("ASCII");

        for (Map.Entry<String,Charset> e

                 : Charset.availableCharsets().entrySet()) {

            String csn = e.getKey();

            Charset cs = e.getValue();

            if (!cs.contains(ascii) ||

                csn.matches(".*2022.*") ||             //iso2022 family

                csn.matches("x-windows-5022[0|1]") ||  //windows 2022jp

                csn.matches(".*UTF-[16|32].*"))        //multi-bytes

                continue;

            if (! cs.canEncode()) continue;

            try {

                check(csn);

            } catch (Throwable t) {

                t.printStackTrace();

                failures++;

            }

        }

        if (failures > 0)

            throw new Exception(failures + "tests failed");

    }

}