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/*
* Copyright (c) 2021, 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 8276186
* @summary Checks whether getAvailableLocales() returns at least Locale.ROOT and
* Locale.US instances.
* @run testng/othervm -Djava.locale.providers=COMPAT RequiredAvailableLocalesTest
* @run testng/othervm -Djava.locale.providers=CLDR RequiredAvailableLocalesTest
*/
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.text.*;
import java.time.format.DecimalStyle;
import java.util.*;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.assertTrue;
@Test
public class RequiredAvailableLocalesTest {
private static final Set<Locale> REQUIRED_LOCALES = Set.of(Locale.ROOT, Locale.US);
private static final MethodType ARRAY_RETURN_TYPE = MethodType.methodType(Locale.class.arrayType());
private static final MethodType SET_RETURN_TYPE = MethodType.methodType(Set.class);
@DataProvider
public Object[][] availableLocalesClasses() {
return new Object[][] {
{BreakIterator.class, ARRAY_RETURN_TYPE},
{Calendar.class, ARRAY_RETURN_TYPE},
{Collator.class, ARRAY_RETURN_TYPE},
{DateFormat.class, ARRAY_RETURN_TYPE},
{DateFormatSymbols.class, ARRAY_RETURN_TYPE},
{DecimalFormatSymbols.class, ARRAY_RETURN_TYPE},
{DecimalStyle.class, SET_RETURN_TYPE},
{Locale.class, ARRAY_RETURN_TYPE},
{NumberFormat.class, ARRAY_RETURN_TYPE},
};
}
@Test (dataProvider = "availableLocalesClasses")
public void checkRequiredLocales(Class<?> c, MethodType mt) throws Throwable {
var ret = MethodHandles.lookup().findStatic(c, "getAvailableLocales", mt).invoke();
if (ret instanceof Locale[] a) {
assertTrue(Arrays.asList(a).containsAll(REQUIRED_LOCALES));
} else if (ret instanceof Set<?> s) {
assertTrue(s.containsAll(REQUIRED_LOCALES));
} else {
throw new RuntimeException("return type mismatch");
}
}
}
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