| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class LeakDetectorTest |
| { |
| private LeakDetector<Object> leakDetector; |
| |
| public void prepare(LeakDetector<Object> leakDetector) throws Exception |
| { |
| this.leakDetector = leakDetector; |
| leakDetector.start(); |
| } |
| |
| public void dispose() throws Exception |
| { |
| leakDetector.stop(); |
| } |
| |
| private void gc() |
| { |
| for (int i = 0; i < 3; ++i) |
| System.gc(); |
| } |
| |
| @Test |
| public void testResourceAcquiredAndReleased() throws Exception |
| { |
| final CountDownLatch latch = new CountDownLatch(1); |
| prepare(new LeakDetector<Object>() |
| { |
| @Override |
| protected void leaked(LeakInfo leakInfo) |
| { |
| latch.countDown(); |
| } |
| }); |
| |
| // Block to make sure "resource" goes out of scope |
| { |
| Object resource = new Object(); |
| leakDetector.acquired(resource); |
| leakDetector.released(resource); |
| } |
| |
| gc(); |
| |
| Assert.assertFalse(latch.await(1, TimeUnit.SECONDS)); |
| } |
| |
| @Test |
| public void testResourceAcquiredAndNotReleased() throws Exception |
| { |
| final CountDownLatch latch = new CountDownLatch(1); |
| prepare(new LeakDetector<Object>() |
| { |
| @Override |
| protected void leaked(LeakInfo leakInfo) |
| { |
| latch.countDown(); |
| } |
| }); |
| |
| leakDetector.acquired(new Object()); |
| |
| gc(); |
| |
| Assert.assertTrue(latch.await(1, TimeUnit.SECONDS)); |
| } |
| } |