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/*
* Copyright (c) 2016, 2023, 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 8159420
* @summary Checks the proper execution of LanguageRange.parse() and
* other LocaleMatcher methods when used in the locales like
* Turkish, because the toLowerCase() method is invoked in the
* parse() and other LocaleMatcher methods.
* e.g. "HI-Deva".toLowerCase() in the Turkish locale returns
* "hı-deva", where 'ı' is the LATIN SMALL LETTER DOTLESS I character
* which is not allowed in the language ranges/tags.
* @compile -encoding utf-8 TurkishLangRangeTest.java
* @run junit/othervm -Duser.language=tr -Duser.country=TR TurkishLangRangeTest
*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Locale.LanguageRange;
import java.util.Locale.FilteringMode;
import java.util.LinkedHashMap;
import java.util.stream.Stream;
import static java.util.Locale.FilteringMode.EXTENDED_FILTERING;
import static java.util.Locale.FilteringMode.AUTOSELECT_FILTERING;
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.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class TurkishLangRangeTest {
/*
* Ensure parse() does not throw IllegalArgumentException for the Turkish Locale
* with the given input.
*/
@Test
public void parseTest() {
String ranges = "HI-Deva, ja-hIrA-JP, RKI";
assertDoesNotThrow(() -> LanguageRange.parse(ranges));
}
/*
* Ensure filter() does not return empty list for the Turkish Locale
* with the given input.
*/
@ParameterizedTest
@MethodSource("modes")
public void filterTest(FilteringMode mode) {
String ranges = "hi-IN, itc-Ital";
String tags = "hi-IN, itc-Ital";
List<LanguageRange> priorityList = LanguageRange.parse(ranges);
List<Locale> tagList = generateLocales(tags);
String actualLocales = showLocales(Locale.filter(priorityList, tagList, mode));
String expectedLocales = "hi-IN, itc-Ital";
assertEquals(expectedLocales, actualLocales);
}
private static Stream<FilteringMode> modes() {
return Stream.of(
EXTENDED_FILTERING,
AUTOSELECT_FILTERING
);
}
/*
* Ensure lookup() does not return null for the Turkish Locale with
* the given input.
*/
@Test
public void lookupTest() {
String ranges = "hi-IN, itc-Ital";
String tags = "hi-IN, itc-Ital";
List<LanguageRange> priorityList = LanguageRange.parse(ranges);
List<Locale> localeList = generateLocales(tags);
Locale actualLocale = Locale.lookup(priorityList, localeList);
assertNotNull(actualLocale);
String actualLocaleString = actualLocale.toLanguageTag();
String expectedLocale = "hi-IN";
assertEquals(expectedLocale, actualLocaleString);
}
/*
* Ensure mapEquivalents() does not only return "hi-in" for the Turkish
* Locale with the given input.
*/
@Test
public void mapEquivalentsTest() {
String ranges = "HI-IN";
List<LanguageRange> priorityList = LanguageRange.parse(ranges);
HashMap<String, List<String>> map = new LinkedHashMap<>();
List<String> equivalentList = new ArrayList<>();
equivalentList.add("HI");
equivalentList.add("HI-Deva");
map.put("HI", equivalentList);
List<LanguageRange> expected = new ArrayList<>();
expected.add(new LanguageRange("hi-in"));
expected.add(new LanguageRange("hi-deva-in"));
List<LanguageRange> got =
LanguageRange.mapEquivalents(priorityList, map);
assertEquals(expected, got, getDifferences(expected, got));
}
private static String getDifferences(List<LanguageRange> expected,
List<LanguageRange> got) {
StringBuilder diffs = new StringBuilder();
List<LanguageRange> cloneExpected = new ArrayList<>(expected);
cloneExpected.removeAll(got);
if (!cloneExpected.isEmpty()) {
diffs.append("Found missing range(s): ")
.append(cloneExpected)
.append(System.lineSeparator());
}
List<LanguageRange> cloneGot = new ArrayList<>(got);
cloneGot.removeAll(expected);
if (!got.isEmpty()) {
diffs.append("Got extra range(s): ")
.append(cloneGot)
.append(System.lineSeparator());
}
return diffs.toString();
}
private static List<Locale> generateLocales(String tags) {
if (tags == null) {
return null;
}
List<Locale> localeList = new ArrayList<>();
if (tags.equals("")) {
return localeList;
}
String[] t = tags.split(", ");
for (String tag : t) {
localeList.add(Locale.forLanguageTag(tag));
}
return localeList;
}
private static String showLocales(List<Locale> locales) {
StringBuilder sb = new StringBuilder();
Iterator<Locale> itr = locales.iterator();
if (itr.hasNext()) {
sb.append(itr.next().toLanguageTag());
}
while (itr.hasNext()) {
sb.append(", ");
sb.append(itr.next().toLanguageTag());
}
return sb.toString().trim();
}
}
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