01: /***
02: * Retrotranslator: a Java bytecode transformer that translates Java classes
03: * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
04: *
05: * Copyright (c) 2005 - 2008 Taras Puchko
06: * All rights reserved.
07: *
08: * Redistribution and use in source and binary forms, with or without
09: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the copyright holders nor the names of its
17: * contributors may be used to endorse or promote products derived from
18: * this software without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30: * THE POSSIBILITY OF SUCH DAMAGE.
31: */package net.sf.retrotranslator.transformer;
32:
33: import junit.framework.TestCase;
34:
35: /**
36: * @author Taras Puchko
37: */
38: public class SynchronizedBlockVisitorTestCase extends TestCase {
39:
40: protected final Object monitor = this ;
41: private int counter;
42:
43: protected void increment() {
44: counter++;
45: }
46:
47: protected synchronized void synchIncrement() {
48: increment();
49: }
50:
51: public void testConstant() throws InterruptedException {
52: increment();
53: synchronized (monitor) {
54: increment();
55: }
56: increment();
57: Thread thread = new Thread() {
58: public void run() {
59: increment();
60: synchIncrement();
61: increment();
62: synchronized (monitor) {
63: increment();
64: }
65: increment();
66: }
67: };
68: thread.start();
69: thread.join();
70: synchIncrement();
71: assertEquals(9, counter);
72: }
73:
74: public void testSeveralBlocks() throws InterruptedException {
75: final Object firstLock = new Object();
76: final Object secondLock = new Object();
77: Thread thread = new Thread() {
78: public void run() {
79: synchronized (firstLock) {
80: synchronized (secondLock) {
81: increment();
82: }
83: synchronized (firstLock) {
84: increment();
85: }
86: }
87: increment();
88: synchronized (firstLock) {
89: increment();
90: }
91: }
92: };
93: thread.start();
94: thread.join();
95: assertEquals(4, counter);
96: }
97:
98: }
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