test/jdk/java/lang/String/ToUpperCase.java - master - githubmirror/panama-vector

test/jdk/java/lang/String/ToUpperCase.java
176 строк8 KB
Naoto Sato
8133167: String.toLowerCase() for sigma does not use Final_Sigma condition
22 июл 2026, 19:25
22 июл 2026, 19:2551b7e5c
/*
 * Copyright (c) 2000, 2026, 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 4219630 4304573 4533872 4900935 8042589 8054307 8133167
    @summary toUpperCase should upper-case German sharp s correctly even if
             it's the only character in the string. should also uppercase
             all of the 1:M char mappings correctly.  Also it should handle
             Locale specific (lt, tr, and az) uppercasings and supplementary
             characters correctly.
    @run junit ToUpperCase
*/

import java.util.Locale;
import java.util.stream.Stream;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import static org.junit.jupiter.api.Assertions.assertEquals;

public class ToUpperCase {
    private static final Locale TURKISH = Locale.of("tr");
    private static final Locale LITHUANIAN = Locale.of("lt");
    private static final Locale AZERI = Locale.of("az");

    @ParameterizedTest
    @MethodSource
    void testSimpleCases(String source, Locale locale, String expected) {
        test(source, locale, expected);
    }

    private static Stream<Arguments> testSimpleCases() {
        return Stream.of(
            Arguments.of("\u00DF", TURKISH, "SS"),
            Arguments.of("a\u00DF", TURKISH, "ASS"),
            Arguments.of("i", TURKISH, "\u0130"),
            Arguments.of("i", AZERI, "\u0130"),
            Arguments.of("\u0131", TURKISH, "I"),
            Arguments.of("\u00DF", Locale.GERMANY, "SS"),
            Arguments.of("a\u00DF", Locale.GERMANY, "ASS"),
            Arguments.of("i", Locale.GERMANY, "I"),

            // test some of the 1:M uppercase mappings
            Arguments.of("abc\u00DF", Locale.US, "ABC\u0053\u0053"),
            Arguments.of("\u0149abc", Locale.US, "\u02BC\u004EABC"),
            Arguments.of("\u0149abc", TURKISH, "\u02BC\u004EABC"),
            Arguments.of("\u1F52", Locale.US, "\u03A5\u0313\u0300"),
            Arguments.of("\u0149\u1F52", Locale.US, "\u02BC\u004E\u03A5\u0313\u0300"),
            Arguments.of("\u1F54ZZZ", Locale.US, "\u03A5\u0313\u0301ZZZ"),
            Arguments.of("\u1F54ZZZ", TURKISH, "\u03A5\u0313\u0301ZZZ"),
            Arguments.of("a\u00DF\u1F56", Locale.US, "ASS\u03A5\u0313\u0342"),
            Arguments.of("\u1FAD", TURKISH, "\u1F6D\u0399"),
            Arguments.of("i\u1FC7", TURKISH, "\u0130\u0397\u0342\u0399"),
            Arguments.of("i\u1FC7", AZERI, "\u0130\u0397\u0342\u0399"),
            Arguments.of("i\u1FC7", Locale.US, "I\u0397\u0342\u0399"),
            Arguments.of("\uFB04", Locale.US, "\u0046\u0046\u004C"),
            Arguments.of("\uFB17AbCdEfi", TURKISH, "\u0544\u053DABCDEF\u0130"),
            Arguments.of("\uFB17AbCdEfi", AZERI, "\u0544\u053DABCDEF\u0130"),

            // Remove DOT ABOVE after "i" in Lithuanian
            Arguments.of("i\u0307", LITHUANIAN, "I"),
            Arguments.of("\u0307", LITHUANIAN, "\u0307"),
            Arguments.of("\u0307i", LITHUANIAN, "\u0307I"),
            Arguments.of("j\u0307", LITHUANIAN, "J"),
            Arguments.of("abci\u0307def", LITHUANIAN, "ABCIDEF"),
            Arguments.of("a\u0307", LITHUANIAN, "A\u0307"),
            Arguments.of("abc\u0307def", LITHUANIAN, "ABC\u0307DEF"),
            Arguments.of("i\u0307", Locale.US, "I\u0307"),
            Arguments.of("i\u0307", TURKISH, "\u0130\u0307"),

            // Supplementary character tests
            //
            // U+10400 ("\uD801\uDC00"): DESERET CAPITAL LETTER LONG I
            // U+10401 ("\uD801\uDC01"): DESERET CAPITAL LETTER LONG E
            // U+10402 ("\uD801\uDC02"): DESERET CAPITAL LETTER LONG A
            // U+10428 ("\uD801\uDC28"): DESERET SMALL LETTER LONG I
            // U+10429 ("\uD801\uDC29"): DESERET SMALL LETTER LONG E
            // U+1042A ("\uD801\uDC2A"): DESERET SMALL LETTER LONG A
            //
            // valid code point tests:
            Arguments.of("\uD801\uDC28\uD801\uDC29\uD801\uDC2A", Locale.US, "\uD801\uDC00\uD801\uDC01\uD801\uDC02"),
            Arguments.of("\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac", Locale.US, "\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C"),
            // invalid code point tests:
            Arguments.of("\uD800\uD800\uD801a\uDC00\uDC00\uDC00b", Locale.US, "\uD800\uD800\uD801A\uDC00\uDC00\uDC00B"),

            // lower/uppercase + surrogates
            Arguments.of("a\uD801\uDC44", Locale.ROOT, "A\uD801\uDC1c"),
            Arguments.of("A\uD801\uDC44", Locale.ROOT, "A\uD801\uDC1c"),
            Arguments.of("a\uD801\uDC28\uD801\uDC29\uD801\uDC2A", Locale.US, "A\uD801\uDC00\uD801\uDC01\uD801\uDC02"),
            Arguments.of("A\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac", Locale.US, "A\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C"));
    }

    @Test
    void testLatin1() {
        // test latin1 only case
        StringBuilder src = new StringBuilder(0x100);
        StringBuilder exp = new StringBuilder(0x100);
        for (int cp = 0; cp < 0x100; cp++) {
            int upperCase = Character.toUpperCase(cp);
            if (upperCase == -1) {    //Character.ERROR
                continue;
            }
            src.appendCodePoint(cp);
            if (cp == '\u00df') {
                exp.append("SS");     // need Character.toUpperCaseEx()
            } else {
                exp.appendCodePoint(upperCase);
            }
        }
        test(src.toString(), Locale.US, exp.toString());
    }

    @Test
    void testNonLatin1ToLatin1() {
        // test non-latin1 -> latin1
        var src = new StringBuilder(0x100).append("ABC");
        var exp = new StringBuilder(0x100).append("ABC");
        for (int cp = 0x100; cp < 0x10000; cp++) {
            int upperCase  = Character.toUpperCase(cp);
            if (upperCase < 0x100) {
                src.appendCodePoint(cp);
                exp.appendCodePoint(upperCase);
            }
        }
        test(src.toString(), Locale.US, exp.toString());

    }

    private static void test(String in, Locale locale, String expected) {
        assertEquals(expected, in.toUpperCase(locale));

        // trigger different code paths
        for (String[] ss :  new String[][] {
                                new String[] {"abc",      "ABC"},
                                new String[] {"AbC",      "ABC"},
                                new String[] {"ABC",      "ABC"},
                                new String[] {"AB\u4e00", "AB\u4e00"},
                                new String[] {"ab\u4e00", "AB\u4e00"},
                                new String[] {"aB\u4e00", "AB\u4e00"},
                                new String[] {"AB\uD800\uDC00", "AB\uD800\uDC00"},
                                new String[] {"Ab\uD800\uDC00", "AB\uD800\uDC00"},
                                new String[] {"ab\uD800\uDC00", "AB\uD800\uDC00"},
                                new String[] {"AB\uD801\uDC44", "AB\uD801\uDC1C"},
                                new String[] {"Ab\uD801\uDC44", "AB\uD801\uDC1C"},
                                new String[] {"ab\uD801\uDC44", "AB\uD801\uDC1C"},
                            }) {
            assertEquals(ss[1] + " " + expected,
                (ss[0] + " " + in).toUpperCase(locale));
            assertEquals(expected + " " + ss[1],
                (in + " " + ss[0]).toUpperCase(locale));
        }
    }
}