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Java > Open Source Codes > net > sf > retrotranslator > runtime > java > lang > _ThreadTestCase


1 /***
2  * Retrotranslator: a Java bytecode transformer that translates Java classes
3  * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4  *
5  * Copyright (c) 2005 - 2007 Taras Puchko
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * 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  */
32 package net.sf.retrotranslator.runtime.java.lang;
33
34 import junit.framework.TestCase;
35
36 /**
37  * @author Taras Puchko
38  */
39 public class _ThreadTestCase extends TestCase {
40
41     public void testGetStackTrace() throws Exception JavaDoc {
42         StackTraceElement JavaDoc[] stackTrace = Thread.currentThread().getStackTrace();
43         String JavaDoc className = this.getClass().getName();
44         StackTraceElement JavaDoc element = null;
45         for (int i = 1; i < stackTrace.length; i++) {
46             element = stackTrace[i];
47             if (className.equals(element.getClassName())) break;
48         }
49         assertNotNull(element);
50         assertEquals("testGetStackTrace", element.getMethodName());
51         for (StackTraceElement JavaDoc stackTraceElement : stackTrace) {
52             assertNotNull(stackTraceElement);
53         }
54     }
55
56     public void testGetId() throws Exception JavaDoc {
57         long currentId = Thread.currentThread().getId();
58         assertTrue(currentId > 0);
59         Thread JavaDoc thread = new Thread JavaDoc();
60         long newId = thread.getId();
61         assertTrue(newId > 0);
62         assertTrue(currentId != newId);
63         assertEquals(currentId, Thread.currentThread().getId());
64         assertEquals(newId, thread.getId());
65     }
66
67     public void testGetId_Custom() throws Exception JavaDoc {
68         class MyThread extends Thread JavaDoc {
69             public int hashCode() {
70                 return 0;
71             }
72
73             public boolean equals(Object JavaDoc obj) {
74                 return true;
75             }
76         }
77         Thread JavaDoc thread1 = new MyThread();
78         Thread JavaDoc thread2 = new MyThread();
79         assertEquals(thread1.getId(), thread1.getId());
80         assertEquals(thread2.getId(), thread2.getId());
81         assertTrue(thread1.getId() != Thread.currentThread().getId());
82         assertTrue(thread2.getId() != Thread.currentThread().getId());
83         assertTrue(thread1.getId() != thread2.getId());
84     }
85 }
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