test/jdk/java/lang/String/NonCharacterMapping.java

/*
 * Copyright (c) 2004, 2022, 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 5101626
 *  @summary Case conversion should not trip over non-character code points.
 */

import java.util.Locale;
import static java.util.Locale.ENGLISH;

public class NonCharacterMapping {

    private static final Locale TURKISH = Locale.of("tr");

    public static void main(String[] args) {
        if (Character.toLowerCase('\uFFFF') != '\uFFFF') {
            throw new RuntimeException();
        }
        if (Character.toUpperCase('\uFFFF') != '\uFFFF') {
            throw new RuntimeException();
        }
        if (Character.toTitleCase('\uFFFF') != '\uFFFF') {
            throw new RuntimeException();
        }
        if (!"\uFFFF".toLowerCase(ENGLISH).equals("\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"\uFFFF".toUpperCase(ENGLISH).equals("\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"\uFFFF".toLowerCase(TURKISH).equals("\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"\uFFFF".toUpperCase(TURKISH).equals("\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"A\uFFFF".toLowerCase(ENGLISH).equals("a\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"A\uFFFF".toUpperCase(ENGLISH).equals("A\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"A\uFFFF".toLowerCase(TURKISH).equals("a\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"A\uFFFF".toUpperCase(TURKISH).equals("A\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"a\uFFFF".toLowerCase(ENGLISH).equals("a\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"a\uFFFF".toUpperCase(ENGLISH).equals("A\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"a\uFFFF".toLowerCase(TURKISH).equals("a\uFFFF")) {
            throw new RuntimeException();
        }
        if (!"a\uFFFF".toUpperCase(TURKISH).equals("A\uFFFF")) {
            throw new RuntimeException();
        }
    }
}