194 lines
9.0 KiB
Java
194 lines
9.0 KiB
Java
/*
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* Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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@test
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@bug 4217441 4533872 4900935 8020037 8032012 8041791 8042589 8054307
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@summary toLowerCase should lower-case Greek Sigma correctly depending
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on the context (final/non-final). Also it should handle
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Locale specific (lt, tr, and az) lowercasings and supplementary
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characters correctly.
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*/
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import java.util.Locale;
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public class ToLowerCase {
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public static void main(String[] args) {
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Locale turkish = Locale.of("tr", "TR");
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Locale lt = Locale.of("lt"); // Lithanian
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Locale az = Locale.of("az"); // Azeri
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// Greek Sigma final/non-final tests
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test("\u03A3", Locale.US, "\u03C3");
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test("LAST\u03A3", Locale.US, "last\u03C2");
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test("MID\u03A3DLE", Locale.US, "mid\u03C3dle");
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test("WORD1 \u03A3 WORD3", Locale.US, "word1 \u03C3 word3");
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test("WORD1 LAST\u03A3 WORD3", Locale.US, "word1 last\u03C2 word3");
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test("WORD1 MID\u03A3DLE WORD3", Locale.US, "word1 mid\u03C3dle word3");
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test("\u0399\u0395\u03a3\u03a5\u03a3 \u03a7\u03a1\u0399\u03a3\u03a4\u039f\u03a3", Locale.US,
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"\u03b9\u03b5\u03c3\u03c5\u03c2 \u03c7\u03c1\u03b9\u03c3\u03c4\u03bf\u03c2"); // "IESUS XRISTOS"
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// Explicit dot above for I's and J's whenever there are more accents above (Lithanian)
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test("I", lt, "i");
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test("I\u0300", lt, "i\u0307\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230)
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test("I\u0316", lt, "i\u0316"); // "I" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
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test("J", lt, "j");
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test("J\u0300", lt, "j\u0307\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230)
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test("J\u0316", lt, "j\u0316"); // "J" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
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test("\u012E", lt, "\u012F");
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test("\u012E\u0300", lt, "\u012F\u0307\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230)
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test("\u012E\u0316", lt, "\u012F\u0316"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
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test("\u00CC", lt, "i\u0307\u0300");
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test("\u00CD", lt, "i\u0307\u0301");
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test("\u0128", lt, "i\u0307\u0303");
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test("I\u0300", Locale.US, "i\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230)
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test("J\u0300", Locale.US, "j\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230)
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test("\u012E\u0300", Locale.US, "\u012F\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230)
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test("\u00CC", Locale.US, "\u00EC");
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test("\u00CD", Locale.US, "\u00ED");
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test("\u0128", Locale.US, "\u0129");
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// I-dot tests
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test("\u0130", turkish, "i");
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test("\u0130", az, "i");
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test("\u0130", lt, "\u0069\u0307");
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test("\u0130", Locale.US, "\u0069\u0307");
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test("\u0130", Locale.JAPAN, "\u0069\u0307");
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test("\u0130", Locale.ROOT, "\u0069\u0307");
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// Remove dot_above in the sequence I + dot_above (Turkish and Azeri)
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test("I\u0307", turkish, "i");
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test("I\u0307", az, "i");
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test("J\u0307", turkish, "j\u0307");
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test("J\u0307", az, "j\u0307");
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// Unless an I is before a dot_above, it turns into a dotless i (Turkish and Azeri)
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test("I", turkish, "\u0131");
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test("I", az, "\u0131");
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test("I", Locale.US, "i");
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test("IABC", turkish, "\u0131abc");
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test("IABC", az, "\u0131abc");
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test("IABC", Locale.US, "iabc");
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// Supplementary character tests
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//
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// U+10400 ("\uD801\uDC00"): DESERET CAPITAL LETTER LONG I
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// U+10401 ("\uD801\uDC01"): DESERET CAPITAL LETTER LONG E
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// U+10402 ("\uD801\uDC02"): DESERET CAPITAL LETTER LONG A
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// U+10428 ("\uD801\uDC28"): DESERET SMALL LETTER LONG I
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// U+10429 ("\uD801\uDC29"): DESERET SMALL LETTER LONG E
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// U+1042A ("\uD801\uDC2A"): DESERET SMALL LETTER LONG A
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//
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// valid code point tests:
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test("\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "\uD801\uDC28\uD801\uDC29\uD801\uDC2A");
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test("\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C", Locale.US, "\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac");
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// invalid code point tests:
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test("\uD800\uD800\uD801A\uDC00\uDC00\uDC00B", Locale.US, "\uD800\uD800\uD801a\uDC00\uDC00\uDC00b");
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// lower/uppercase + surrogates
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test("a\uD801\uDC1c", Locale.ROOT, "a\uD801\uDC44");
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test("A\uD801\uDC1c", Locale.ROOT, "a\uD801\uDC44");
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test("a\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "a\uD801\uDC28\uD801\uDC29\uD801\uDC2A");
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test("A\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "a\uD801\uDC28\uD801\uDC29\uD801\uDC2A");
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// test bmp + supp1
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StringBuilder src = new StringBuilder(0x20000);
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StringBuilder exp = new StringBuilder(0x20000);
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for (int cp = 0; cp < 0x20000; cp++) {
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if (cp >= Character.MIN_HIGH_SURROGATE && cp <= Character.MAX_HIGH_SURROGATE) {
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continue;
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}
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if (cp == 0x0130) {
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// Although UnicodeData.txt has the lower case char as \u0069, it should be
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// handled with the rules in SpecialCasing.txt, i.e., \u0069\u0307 in
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// non Turkic locales.
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continue;
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}
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int lowerCase = Character.toLowerCase(cp);
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if (lowerCase == -1) { //Character.ERROR
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continue;
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}
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src.appendCodePoint(cp);
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exp.appendCodePoint(lowerCase);
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}
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test(src.toString(), Locale.US, exp.toString());
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// test latin1
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src = new StringBuilder(0x100);
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exp = new StringBuilder(0x100);
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for (int cp = 0; cp < 0x100; cp++) {
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int lowerCase = Character.toLowerCase(cp);
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if (lowerCase == -1) { //Character.ERROR
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continue;
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}
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src.appendCodePoint(cp);
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exp.appendCodePoint(lowerCase);
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}
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test(src.toString(), Locale.US, exp.toString());
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// test non-latin1 -> latin1
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src = new StringBuilder(0x100).append("abc");
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exp = new StringBuilder(0x100).append("abc");
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for (int cp = 0x100; cp < 0x10000; cp++) {
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int lowerCase = Character.toLowerCase(cp);
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if (lowerCase < 0x100 && cp != '\u0130') {
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src.appendCodePoint(cp);
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exp.appendCodePoint(lowerCase);
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}
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}
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test(src.toString(), Locale.US, exp.toString());
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}
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static void test(String in, Locale locale, String expected) {
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test0(in, locale,expected);
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for (String[] ss : new String[][] {
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new String[] {"abc", "abc"},
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new String[] {"aBc", "abc"},
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new String[] {"ABC", "abc"},
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new String[] {"ab\u4e00", "ab\u4e00"},
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new String[] {"aB\u4e00", "ab\u4e00"},
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new String[] {"AB\u4e00", "ab\u4e00"},
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new String[] {"ab\uD800\uDC00", "ab\uD800\uDC00"},
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new String[] {"aB\uD800\uDC00", "ab\uD800\uDC00"},
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new String[] {"AB\uD800\uDC00", "ab\uD800\uDC00"},
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new String[] {"ab\uD801\uDC1C", "ab\uD801\uDC44"},
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new String[] {"aB\uD801\uDC1C", "ab\uD801\uDC44"},
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new String[] {"AB\uD801\uDC1C", "ab\uD801\uDC44"},
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}) {
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test0(ss[0] + " " + in, locale, ss[1] + " " + expected);
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test0(in + " " + ss[0], locale, expected + " " + ss[1]);
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}
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}
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static void test0(String in, Locale locale, String expected) {
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String result = in.toLowerCase(locale);
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if (!result.equals(expected)) {
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System.err.println("input: " + in + ", locale: " + locale +
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", expected: " + expected + ", actual: " + result);
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throw new RuntimeException();
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}
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}
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}
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