/*
* Copyright 2014 NAVER Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* 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 com.navercorp.pinpoint.common.util;
import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.management.ThreadInfo;
import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
public class ThreadMXBeanUtilsTest {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Test
public void testName() throws Exception {
ThreadInfo[] threadInfos = ThreadMXBeanUtils.dumpAllThread();
Assert.assertNotNull(threadInfos);
logger.trace("thread:{}", Arrays.toString(threadInfos));
}
@Test
public void testOption() {
final String option = ThreadMXBeanUtils.getOption();
logger.debug("ThreadMXBean option:{}", option);
}
@Test
public void testHasThreadName() {
String threadName = "ThreadMXBeanUtils-test-thread";
Assert.assertFalse(ThreadMXBeanUtils.findThreadName(threadName));
WaitingRunnable waiting = new WaitingRunnable();
Thread thread = new Thread(waiting, threadName);
thread.start();
Assert.assertTrue(ThreadMXBeanUtils.findThreadName(threadName));
waiting.stop();
try {
thread.join(2000);
} catch (InterruptedException e) {
Assert.fail();
}
Assert.assertFalse(ThreadMXBeanUtils.findThreadName(threadName));
}
private class WaitingRunnable implements Runnable {
private final CountDownLatch latch = new CountDownLatch(1);
@Override
public void run() {
try {
latch.await();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
public void stop() {
latch.countDown();
}
}
}