jdk/test/java/nio/charset/Charset/Contains.java

/*
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 * 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
 * @summary Unit test for charset containment
 * @bug 6798572
 * @modules jdk.charsets
 */

import java.nio.charset.*;


public class Contains {

    static void ck(Charset cs1, Charset cs2, boolean cont) throws Exception {
        if ((cs1.contains(cs2)) != cont)
            throw new Exception("Wrong answer: "
                                + cs1.name() + " contains " + cs2.name());
        System.err.println(cs1.name()
                           + (cont ? " contains " : " does not contain ")
                           + cs2.name());
    }

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

        Charset us_ascii = Charset.forName("US-ASCII");
        Charset iso_8859_1 = Charset.forName("ISO-8859-1");
        Charset iso_8859_15 = Charset.forName("ISO-8859-15");
        Charset utf_8 = Charset.forName("UTF-8");
        Charset utf_16be = Charset.forName("UTF-16BE");
        Charset cp1252 = Charset.forName("CP1252");

        ck(us_ascii, us_ascii, true);
        ck(us_ascii, iso_8859_1, false);
        ck(us_ascii, iso_8859_15, false);
        ck(us_ascii, utf_8, false);
        ck(us_ascii, utf_16be, false);
        ck(us_ascii, cp1252, false);

        ck(iso_8859_1, us_ascii, true);
        ck(iso_8859_1, iso_8859_1, true);
        ck(iso_8859_1, iso_8859_15, false);
        ck(iso_8859_1, utf_8, false);
        ck(iso_8859_1, utf_16be, false);
        ck(iso_8859_1, cp1252, false);

        ck(iso_8859_15, us_ascii, true);
        ck(iso_8859_15, iso_8859_1, false);
        ck(iso_8859_15, iso_8859_15, true);
        ck(iso_8859_15, utf_8, false);
        ck(iso_8859_15, utf_16be, false);
        ck(iso_8859_15, cp1252, false);

        ck(utf_8, us_ascii, true);
        ck(utf_8, iso_8859_1, true);
        ck(utf_8, iso_8859_15, true);
        ck(utf_8, utf_8, true);
        ck(utf_8, utf_16be, true);
        ck(utf_8, cp1252, true);

        ck(utf_16be, us_ascii, true);
        ck(utf_16be, iso_8859_1, true);
        ck(utf_16be, iso_8859_15, true);
        ck(utf_16be, utf_8, true);
        ck(utf_16be, utf_16be, true);
        ck(utf_16be, cp1252, true);

        ck(cp1252, us_ascii, true);
        ck(cp1252, iso_8859_1, false);
        ck(cp1252, iso_8859_15, false);
        ck(cp1252, utf_8, false);
        ck(cp1252, utf_16be, false);
        ck(cp1252, cp1252, true);

        checkUTF();
    }

    static void checkUTF() throws Exception {
        for (String utfName : utfNames)
            for (String csName : charsetNames)
                ck(Charset.forName(utfName),
                   Charset.forName(csName),
                   true);
    }

    static String[] utfNames = {"utf-16",
                         "utf-8",
                         "utf-16le",
                         "utf-16be",
                         "x-utf-16le-bom"};

    static String[] charsetNames = {
        "US-ASCII",
        "UTF-8",
        "UTF-16",
        "UTF-16BE",
        "UTF-16LE",
        "x-UTF-16LE-BOM",
        "GBK",
        "GB18030",
        "ISO-8859-1",
        "ISO-8859-15",
        "ISO-8859-2",
        "ISO-8859-3",
        "ISO-8859-4",
        "ISO-8859-5",
        "ISO-8859-6",
        "ISO-8859-7",
        "ISO-8859-8",
        "ISO-8859-9",
        "ISO-8859-13",
        "JIS_X0201",
        "x-JIS0208",
        "JIS_X0212-1990",
        "GB2312",
        "EUC-KR",
        "x-EUC-TW",
        "EUC-JP",
        "x-euc-jp-linux",
        "KOI8-R",
        "TIS-620",
        "x-ISCII91",
        "windows-1251",
        "windows-1252",
        "windows-1253",
        "windows-1254",
        "windows-1255",
        "windows-1256",
        "windows-1257",
        "windows-1258",
        "windows-932",
        "x-mswin-936",
        "x-windows-949",
        "x-windows-950",
        "windows-31j",
        "Big5",
        "Big5-HKSCS",
        "x-MS950-HKSCS",
        "ISO-2022-JP",
        "ISO-2022-KR",
        "x-ISO-2022-CN-CNS",
        "x-ISO-2022-CN-GB",
        "Big5-HKSCS",
        "x-Johab",
        "Shift_JIS"
    };
}