/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.streams.local.executors;
import org.apache.streams.local.builders.LocalStreamBuilder;
import org.apache.streams.util.ComponentUtils;
import org.junit.After;
import org.junit.Test;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
/**
*
*/
public class ShutdownStreamOnUnhandledThrowableThreadPoolExecutorTest {
@After
public void removeLocalMBeans() {
try {
ComponentUtils.removeAllMBeansOfDomain("org.apache.streams.local");
} catch (Exception e) {
//No op. proceed to next test
}
}
@Test
public void testShutDownOnException() {
LocalStreamBuilder sb = mock(LocalStreamBuilder.class);
final AtomicBoolean isShutdown = new AtomicBoolean(false);
doAnswer(invocationOnMock -> {
isShutdown.set(true);
return null;
}).when(sb).stop();
final CountDownLatch latch = new CountDownLatch(1);
Runnable runnable = () -> {
latch.countDown();
throw new RuntimeException("Testing Throwable Handling!");
};
ExecutorService executor = new ShutdownStreamOnUnhandleThrowableThreadPoolExecutor(1, sb);
executor.execute(runnable);
try {
latch.await();
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
}
executor.shutdownNow();
try {
executor.awaitTermination(1, TimeUnit.SECONDS);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
}
assertTrue("Expected StreamBuilder shutdown to be called", isShutdown.get());
}
@Test
public void testNormalExecution() {
LocalStreamBuilder sb = mock(LocalStreamBuilder.class);
final AtomicBoolean isShutdown = new AtomicBoolean(false);
doAnswer(invocationOnMock -> {
isShutdown.set(true);
return null;
}).when(sb).stop();
final CountDownLatch latch = new CountDownLatch(1);
Runnable runnable = latch::countDown;
ExecutorService executor = new ShutdownStreamOnUnhandleThrowableThreadPoolExecutor(1, sb);
executor.execute(runnable);
try {
latch.await();
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
}
executor.shutdownNow();
try {
executor.awaitTermination(1, TimeUnit.SECONDS);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
}
assertFalse("Expected StreamBuilder shutdown to be called", isShutdown.get());
}
}