russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
101 lines
3.8 KiB
Java
101 lines
3.8 KiB
Java
/*
|
|
* Copyright (c) 2017, 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
|
|
* @modules java.scripting
|
|
* @library modules classpath/pearscript
|
|
* @build ReloadTest org.pear.PearScript org.pear.PearScriptEngineFactory bananascript/*
|
|
* @run junit/othervm ReloadTest
|
|
* @summary Basic test of ServiceLoader.reload
|
|
*/
|
|
|
|
import java.util.ConcurrentModificationException;
|
|
import java.util.Iterator;
|
|
import java.util.List;
|
|
import java.util.ServiceLoader;
|
|
import java.util.ServiceLoader.Provider;
|
|
import java.util.Spliterator;
|
|
import java.util.stream.Collectors;
|
|
import java.util.stream.Stream;
|
|
import static java.util.ServiceLoader.*;
|
|
import javax.script.ScriptEngineFactory;
|
|
|
|
import org.junit.jupiter.api.Assertions;
|
|
import static org.junit.jupiter.api.Assertions.*;
|
|
import org.junit.jupiter.api.Test;
|
|
|
|
public class ReloadTest {
|
|
|
|
@Test
|
|
public void testReload() {
|
|
ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class);
|
|
List<String> names1 = sl.stream()
|
|
.map(Provider::get)
|
|
.map(ScriptEngineFactory::getEngineName)
|
|
.collect(Collectors.toList());
|
|
assertFalse(names1.isEmpty());
|
|
sl.reload();
|
|
List<String> names2 = sl.stream()
|
|
.map(Provider::get)
|
|
.map(ScriptEngineFactory::getEngineName)
|
|
.collect(Collectors.toList());
|
|
assertEquals(names2, names1);
|
|
}
|
|
|
|
@Test
|
|
public void testIteratorHasNext() {
|
|
ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class);
|
|
Iterator<ScriptEngineFactory> iterator = sl.iterator();
|
|
sl.reload();
|
|
Assertions.assertThrows(ConcurrentModificationException.class, iterator::hasNext);
|
|
}
|
|
|
|
@Test
|
|
public void testIteratorNext() {
|
|
ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class);
|
|
Iterator<ScriptEngineFactory> iterator = sl.iterator();
|
|
assertTrue(iterator.hasNext());
|
|
sl.reload();
|
|
Assertions.assertThrows(ConcurrentModificationException.class, iterator::next);
|
|
}
|
|
|
|
@Test
|
|
public void testStreamFindAny() {
|
|
ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class);
|
|
Stream<Provider<ScriptEngineFactory>> stream = sl.stream();
|
|
sl.reload();
|
|
Assertions.assertThrows(ConcurrentModificationException.class, stream::findAny);
|
|
}
|
|
|
|
@Test
|
|
public void testSpliteratorTryAdvance() {
|
|
ServiceLoader<ScriptEngineFactory> sl = load(ScriptEngineFactory.class);
|
|
Stream<Provider<ScriptEngineFactory>> stream = sl.stream();
|
|
Spliterator<Provider<ScriptEngineFactory>> spliterator = stream.spliterator();
|
|
sl.reload();
|
|
Assertions.assertThrows(ConcurrentModificationException.class,
|
|
() -> spliterator.tryAdvance(System.out::println));
|
|
}
|
|
|
|
}
|