/*

 * Copyright (c) 2018, 2019, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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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/*

 * @test

 * @bug 4397357 6565620 6959267 8032446 8072600 8221431

 * @summary Confirm normal case mappings are handled correctly.

 * @library /lib/testlibrary/java/lang

 * @run main/timeout=200 UnicodeCasingTest

 */

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.util.ArrayList;

import java.util.List;

import java.util.Locale;

public class UnicodeCasingTest {

    private static boolean err = false;

    // Locales which are used for testing

    private static List<Locale> locales = new ArrayList<>();

    static {

        locales.add(new Locale("az", ""));

        locales.addAll(java.util.Arrays.asList(Locale.getAvailableLocales()));

    }

    public static void main(String[] args) {

        UnicodeCasingTest specialCasingTest = new UnicodeCasingTest();

        specialCasingTest.test();

    }

    private void test() {

        Locale defaultLocale = Locale.getDefault();

        BufferedReader in = null;

        try {

            File file = UCDFiles.UNICODE_DATA.toFile();

            int locale_num = locales.size();

            for (int l = 0; l < locale_num; l++) {

                Locale locale = locales.get(l);

                Locale.setDefault(locale);

                System.out.println("Testing on " + locale + " locale....");

                in = new BufferedReader(new FileReader(file));

                String line;

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

                    if (line.length() == 0 || line.charAt(0) == '#') {

                        continue;

                    }

                    test(line);

                }

                in.close();

                in = null;

            }

        }

        catch (Exception e) {

            err = true;

            e.printStackTrace();

        }

        finally {

            if (in != null) {

                try {

                    in.close();

                }

                catch (Exception e) {

                }

            }

            Locale.setDefault(defaultLocale);

            if (err) {

                throw new RuntimeException("UnicodeCasingTest failed.");

            } else {

                System.out.println("UnicodeCasingTest passed.");

            }

        }

    }

    private void test(String line) {

        String[] fields = line.split(";", 15);

        int orig = convert(fields[0]);

        if (fields[12].length() != 0) {

            testUpperCase(orig, convert(fields[12]));

        } else {

            testUpperCase(orig, orig);

        }

        if (fields[13].length() != 0) {

            testLowerCase(orig, convert(fields[13]));

        } else {

            testLowerCase(orig, orig);

        }

        if (fields[14].length() != 0) {

            testTitleCase(orig, convert(fields[14]));

        } else {

            testTitleCase(orig, orig);

        }

    }

    private void testUpperCase(int orig, int expected) {

        int got = Character.toUpperCase(orig);

        if (expected != got) {

            err = true;

            System.err.println("toUpperCase(" +

                ") failed.\n\tOriginal: " + toString(orig) +

                "\n\tGot:      " + toString(got) +

                "\n\tExpected: " + toString(expected));

        }

    }

    private void testLowerCase(int orig, int expected) {

        int got = Character.toLowerCase(orig);

        if (expected != got) {

            err = true;

            System.err.println("toLowerCase(" +

                ") failed.\n\tOriginal: " + toString(orig) +

                "\n\tGot:      " + toString(got) +

                "\n\tExpected: " + toString(expected));

        }

    }

    private void testTitleCase(int orig, int expected) {

        int got = Character.toTitleCase(orig);

        if (expected != got) {

            err = true;

            System.err.println("toTitleCase(" +

                ") failed.\n\tOriginal: " + toString(orig) +

                "\n\tGot:      " + toString(got) +

                "\n\tExpected: " + toString(expected));

        }

    }

    private int convert(String str) {

        return Integer.parseInt(str, 16);

    }

    private String toString(int i) {

        return Integer.toHexString(i).toUpperCase();

    }

}