test/jdk/java/util/Locale/GetAdapterPreference.java - master - githubmirror/galahad

test/jdk/java/util/Locale/GetAdapterPreference.java

52 строки2 KB

Justin Lu

8310234: Refactor Locale tests to use JUnit

24 июн 2023, 00:33

24 июн 2023, 00:33dad7bd9

/*
 * Copyright (c) 2013, 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 8004240
 * @summary Verify that getAdapterPreference returns an unmodifiable list.
 * @modules java.base/sun.util.locale.provider
 * @compile -XDignore.symbol.file GetAdapterPreference.java
 * @run junit GetAdapterPreference
 */

import java.util.List;
import sun.util.locale.provider.LocaleProviderAdapter;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertThrows;

public class GetAdapterPreference {

    /**
     * Test that the list returned from getAdapterPreference()
     * cannot be modified.
     */
    @Test
    public void immutableTest() {
        List<LocaleProviderAdapter.Type> types = LocaleProviderAdapter.getAdapterPreference();
        assertThrows(UnsupportedOperationException.class, () -> types.set(0, null),
                "Trying to modify list returned from LocaleProviderAdapter.getAdapterPreference() did not throw UOE");
    }
}