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root/jsr166/jsr166/src/test/tck/ExchangerTest.java

Comparing jsr166/src/test/tck/ExchangerTest.java (file contents):
Revision 1.4 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.14 by jsr166, Wed Aug 25 00:07:03 2010 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13
14		public class ExchangerTest extends JSR166TestCase {
15	<
15	>
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run(suite());
18		}
19		public static Test suite() {
20	<	return new TestSuite(ExchangerTest.class);
20	>	return new TestSuite(ExchangerTest.class);
21		}
22
23		/**
24		* exchange exchanges objects across two threads
25		*/
26	<	public void testExchange() {
26	>	public void testExchange() throws InterruptedException {
27		final Exchanger e = new Exchanger();
28	<	Thread t1 = new Thread(new Runnable(){
29	<	public void run(){
30	<	try {
31	<	Object v = e.exchange(one);
32	<	threadAssertEquals(v, two);
33	<	Object w = e.exchange(v);
34	<	threadAssertEquals(w, one);
35	<	} catch(InterruptedException e){
36	<	threadUnexpectedException();
37	<	}
38	<	}
39	<	});
40	<	Thread t2 = new Thread(new Runnable(){
41	<	public void run(){
42	<	try {
41	<	Object v = e.exchange(two);
42	<	threadAssertEquals(v, one);
43	<	Object w = e.exchange(v);
44	<	threadAssertEquals(w, two);
45	<	} catch(InterruptedException e){
46	<	threadUnexpectedException();
47	<	}
48	<	}
49	<	});
50	<	try {
51	<	t1.start();
52	<	t2.start();
53	<	t1.join();
54	<	t2.join();
55	<	} catch(InterruptedException ex) {
56	<	unexpectedException();
57	<	}
28	>	Thread t1 = new Thread(new CheckedRunnable() {
29	>	public void realRun() throws InterruptedException {
30	>	assertSame(one, e.exchange(two));
31	>	assertSame(two, e.exchange(one));
32	>	}});
33	>	Thread t2 = new Thread(new CheckedRunnable() {
34	>	public void realRun() throws InterruptedException {
35	>	assertSame(two, e.exchange(one));
36	>	assertSame(one, e.exchange(two));
37	>	}});
38	>
39	>	t1.start();
40	>	t2.start();
41	>	t1.join();
42	>	t2.join();
43		}
44
45		/**
46		* timed exchange exchanges objects across two threads
47		*/
48	<	public void testTimedExchange() {
48	>	public void testTimedExchange() throws InterruptedException {
49		final Exchanger e = new Exchanger();
50	<	Thread t1 = new Thread(new Runnable(){
51	<	public void run(){
52	<	try {
53	<	Object v = e.exchange(one, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
54	<	threadAssertEquals(v, two);
55	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
56	<	threadAssertEquals(w, one);
57	<	} catch(InterruptedException e){
58	<	threadUnexpectedException();
59	<	} catch(TimeoutException toe) {
60	<	threadUnexpectedException();
61	<	}
62	<	}
63	<	});
64	<	Thread t2 = new Thread(new Runnable(){
80	<	public void run(){
81	<	try {
82	<	Object v = e.exchange(two, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
83	<	threadAssertEquals(v, one);
84	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
85	<	threadAssertEquals(w, two);
86	<	} catch(InterruptedException e){
87	<	threadUnexpectedException();
88	<	} catch(TimeoutException toe) {
89	<	threadUnexpectedException();
90	<	}
91	<	}
92	<	});
93	<	try {
94	<	t1.start();
95	<	t2.start();
96	<	t1.join();
97	<	t2.join();
98	<	} catch(InterruptedException ex) {
99	<	unexpectedException();
100	<	}
50	>	Thread t1 = new Thread(new CheckedRunnable() {
51	>	public void realRun() throws Exception {
52	>	assertSame(one, e.exchange(two, SHORT_DELAY_MS, MILLISECONDS));
53	>	assertSame(two, e.exchange(one, SHORT_DELAY_MS, MILLISECONDS));
54	>	}});
55	>	Thread t2 = new Thread(new CheckedRunnable() {
56	>	public void realRun() throws Exception {
57	>	assertSame(two, e.exchange(one, SHORT_DELAY_MS, MILLISECONDS));
58	>	assertSame(one, e.exchange(two, SHORT_DELAY_MS, MILLISECONDS));
59	>	}});
60	>
61	>	t1.start();
62	>	t2.start();
63	>	t1.join();
64	>	t2.join();
65		}
66
67		/**
68		* interrupt during wait for exchange throws IE
69		*/
70	<	public void testExchange_InterruptedException(){
70	>	public void testExchange_InterruptedException() throws InterruptedException {
71		final Exchanger e = new Exchanger();
72	<	Thread t = new Thread(new Runnable() {
73	<	public void run(){
74	<	try {
75	<	e.exchange(one);
76	<	threadShouldThrow();
77	<	} catch(InterruptedException success){
78	<	}
79	<	}
80	<	});
117	<	try {
118	<	t.start();
119	<	Thread.sleep(SHORT_DELAY_MS);
120	<	t.interrupt();
121	<	t.join();
122	<	} catch(InterruptedException ex) {
123	<	unexpectedException();
124	<	}
72	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
73	>	public void realRun() throws InterruptedException {
74	>	e.exchange(one);
75	>	}});
76	>
77	>	t.start();
78	>	Thread.sleep(SHORT_DELAY_MS);
79	>	t.interrupt();
80	>	t.join();
81		}
82
83		/**
84		* interrupt during wait for timed exchange throws IE
85		*/
86	<	public void testTimedExchange_InterruptedException(){
86	>	public void testTimedExchange_InterruptedException() throws InterruptedException {
87		final Exchanger e = new Exchanger();
88	<	Thread t = new Thread(new Runnable() {
89	<	public void run(){
90	<	try {
91	<	e.exchange(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
92	<	threadShouldThrow();
93	<	} catch(InterruptedException success){
94	<	} catch(Exception e2){
95	<	threadFail("should throw IE");
96	<	}
141	<	}
142	<	});
143	<	try {
144	<	t.start();
145	<	t.interrupt();
146	<	t.join();
147	<	} catch(InterruptedException ex){
148	<	unexpectedException();
149	<	}
88	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
89	>	public void realRun() throws Exception {
90	>	e.exchange(null, SMALL_DELAY_MS, MILLISECONDS);
91	>	}});
92	>
93	>	t.start();
94	>	Thread.sleep(SHORT_DELAY_MS);
95	>	t.interrupt();
96	>	t.join();
97		}
98
99		/**
100		* timeout during wait for timed exchange throws TOE
101		*/
102	<	public void testExchange_TimeOutException(){
102	>	public void testExchange_TimeOutException() throws InterruptedException {
103		final Exchanger e = new Exchanger();
104	<	Thread t = new Thread(new Runnable() {
105	<	public void run(){
106	<	try {
107	<	e.exchange(null, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
108	<	threadShouldThrow();
109	<	} catch(TimeoutException success){
110	<	} catch(InterruptedException e2){
164	<	threadFail("should throw TOE");
165	<	}
166	<	}
167	<	});
168	<	try {
169	<	t.start();
170	<	t.join();
171	<	} catch(InterruptedException ex){
172	<	unexpectedException();
173	<	}
104	>	Thread t = new ThreadShouldThrow(TimeoutException.class) {
105	>	public void realRun() throws Exception {
106	>	e.exchange(null, SHORT_DELAY_MS, MILLISECONDS);
107	>	}};
108	>
109	>	t.start();
110	>	t.join();
111		}
112
113		/**
114		* If one exchanging thread is interrupted, another succeeds.
115		*/
116	<	public void testReplacementAfterExchange() {
116	>	public void testReplacementAfterExchange() throws InterruptedException {
117		final Exchanger e = new Exchanger();
118	<	Thread t1 = new Thread(new Runnable(){
119	<	public void run(){
120	<	try {
121	<	Object v = e.exchange(one);
122	<	threadAssertEquals(v, two);
123	<	Object w = e.exchange(v);
124	<	threadShouldThrow();
125	<	} catch(InterruptedException success){
126	<	}
127	<	}
128	<	});
129	<	Thread t2 = new Thread(new Runnable(){
130	<	public void run(){
131	<	try {
132	<	Object v = e.exchange(two);
133	<	threadAssertEquals(v, one);
134	<	Thread.sleep(SMALL_DELAY_MS);
135	<	Object w = e.exchange(v);
136	<	threadAssertEquals(w, three);
137	<	} catch(InterruptedException e){
138	<	threadUnexpectedException();
139	<	}
140	<	}
141	<	});
142	<	Thread t3 = new Thread(new Runnable(){
206	<	public void run(){
207	<	try {
208	<	Thread.sleep(SMALL_DELAY_MS);
209	<	Object w = e.exchange(three);
210	<	threadAssertEquals(w, one);
211	<	} catch(InterruptedException e){
212	<	threadUnexpectedException();
213	<	}
214	<	}
215	<	});
216	<
217	<	try {
218	<	t1.start();
219	<	t2.start();
220	<	t3.start();
221	<	Thread.sleep(SHORT_DELAY_MS);
222	<	t1.interrupt();
223	<	t1.join();
224	<	t2.join();
225	<	t3.join();
226	<	} catch(InterruptedException ex) {
227	<	unexpectedException();
228	<	}
118	>	Thread t1 = new Thread(new CheckedInterruptedRunnable() {
119	>	public void realRun() throws InterruptedException {
120	>	assertSame(two, e.exchange(one));
121	>	e.exchange(two);
122	>	}});
123	>	Thread t2 = new Thread(new CheckedRunnable() {
124	>	public void realRun() throws InterruptedException {
125	>	assertSame(one, e.exchange(two));
126	>	Thread.sleep(SMALL_DELAY_MS);
127	>	assertSame(three, e.exchange(one));
128	>	}});
129	>	Thread t3 = new Thread(new CheckedRunnable() {
130	>	public void realRun() throws InterruptedException {
131	>	Thread.sleep(SMALL_DELAY_MS);
132	>	assertSame(one, e.exchange(three));
133	>	}});
134	>
135	>	t1.start();
136	>	t2.start();
137	>	t3.start();
138	>	Thread.sleep(SHORT_DELAY_MS);
139	>	t1.interrupt();
140	>	t1.join();
141	>	t2.join();
142	>	t3.join();
143		}
144
145		}

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