1 /***
2 *
3 * Copyright 2005 LogicBlaze, Inc. http://www.logicblaze.com
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.logicblaze.lingo.lock;
19
20 import junit.framework.Test;
21
22 /***
23 *
24 * @version $Revision: 1.1 $
25 */
26 public class WriteLockDeadLockTest extends LockManagerTestSupport {
27
28 public static Test suite() throws Exception {
29 return suite(WriteLockDeadLockTest.class);
30 }
31
32 public void threadOne() throws Exception {
33 sync("a");
34 lockManager.getLock("1").writeLock().lock();
35
36 sync("b");
37 try {
38 lockManager.getLock("2").writeLock().lockInterruptibly();
39 fail("Should have thrown a deadlock exception!");
40 }
41 catch (InterruptedException e) {
42 System.out.println("Caught expected deadlock exception: " + e);
43 e.printStackTrace();
44 }
45 }
46
47 public void threadTwo() throws Exception {
48 sync("a");
49 lockManager.getLock("2").writeLock().lock();
50
51 sync("b");
52 }
53
54 }