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

Comparing jsr166/src/test/tck/ExchangerTest.java (file contents):
Revision 1.7 by jsr166, Mon Nov 16 04:57:10 2009 UTC vs.
Revision 1.21 by jsr166, Tue May 31 16:16:23 2011 UTC

#	Line 1 | Line 1
1		/*
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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
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.*;
11	>	import java.util.concurrent.CountDownLatch;
12	>	import java.util.concurrent.Exchanger;
13	>	import java.util.concurrent.TimeoutException;
14	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
15
16		public class ExchangerTest extends JSR166TestCase {
17
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
22	<	return new TestSuite(ExchangerTest.class);
22	>	return new TestSuite(ExchangerTest.class);
23		}
24
25		/**
#	Line 24 | Line 27 | public class ExchangerTest extends JSR16
27		*/
28		public void testExchange() {
29		final Exchanger e = new Exchanger();
30	<	Thread t1 = new Thread(new Runnable(){
31	<	public void run(){
32	<	try {
33	<	Object v = e.exchange(one);
34	<	threadAssertEquals(v, two);
35	<	Object w = e.exchange(v);
36	<	threadAssertEquals(w, one);
37	<	} catch (InterruptedException e){
38	<	threadUnexpectedException();
39	<	}
40	<	}
41	<	});
42	<	Thread t2 = new Thread(new Runnable(){
40	<	public void run(){
41	<	try {
42	<	Object v = e.exchange(two);
43	<	threadAssertEquals(v, one);
44	<	Object w = e.exchange(v);
45	<	threadAssertEquals(w, two);
46	<	} catch (InterruptedException e){
47	<	threadUnexpectedException();
48	<	}
49	<	}
50	<	});
51	<	try {
52	<	t1.start();
53	<	t2.start();
54	<	t1.join();
55	<	t2.join();
56	<	} catch (InterruptedException ex) {
57	<	unexpectedException();
58	<	}
30	>	Thread t1 = newStartedThread(new CheckedRunnable() {
31	>	public void realRun() throws InterruptedException {
32	>	assertSame(one, e.exchange(two));
33	>	assertSame(two, e.exchange(one));
34	>	}});
35	>	Thread t2 = newStartedThread(new CheckedRunnable() {
36	>	public void realRun() throws InterruptedException {
37	>	assertSame(two, e.exchange(one));
38	>	assertSame(one, e.exchange(two));
39	>	}});
40	>
41	>	awaitTermination(t1);
42	>	awaitTermination(t2);
43		}
44
45		/**
#	Line 63 | Line 47 | public class ExchangerTest extends JSR16
47		*/
48		public void testTimedExchange() {
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	<	}
79	<	});
80	<	Thread t2 = new Thread(new Runnable(){
81	<	public void run(){
82	<	try {
83	<	Object v = e.exchange(two, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
84	<	threadAssertEquals(v, one);
85	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
86	<	threadAssertEquals(w, two);
87	<	} catch (InterruptedException e){
88	<	threadUnexpectedException();
89	<	} catch (TimeoutException toe) {
90	<	threadUnexpectedException();
91	<	}
92	<	}
93	<	});
94	<	try {
95	<	t1.start();
96	<	t2.start();
97	<	t1.join();
98	<	t2.join();
99	<	} catch (InterruptedException ex) {
100	<	unexpectedException();
101	<	}
50	>	Thread t1 = newStartedThread(new CheckedRunnable() {
51	>	public void realRun() throws Exception {
52	>	assertSame(one, e.exchange(two, LONG_DELAY_MS, MILLISECONDS));
53	>	assertSame(two, e.exchange(one, LONG_DELAY_MS, MILLISECONDS));
54	>	}});
55	>	Thread t2 = newStartedThread(new CheckedRunnable() {
56	>	public void realRun() throws Exception {
57	>	assertSame(two, e.exchange(one, LONG_DELAY_MS, MILLISECONDS));
58	>	assertSame(one, e.exchange(two, LONG_DELAY_MS, MILLISECONDS));
59	>	}});
60	>
61	>	awaitTermination(t1);
62	>	awaitTermination(t2);
63		}
64
65		/**
66		* interrupt during wait for exchange throws IE
67		*/
68	<	public void testExchange_InterruptedException(){
68	>	public void testExchange_InterruptedException() {
69		final Exchanger e = new Exchanger();
70	<	Thread t = new Thread(new Runnable() {
71	<	public void run(){
72	<	try {
73	<	e.exchange(one);
74	<	threadShouldThrow();
75	<	} catch (InterruptedException success){
76	<	}
77	<	}
78	<	});
79	<	try {
119	<	t.start();
120	<	Thread.sleep(SHORT_DELAY_MS);
121	<	t.interrupt();
122	<	t.join();
123	<	} catch (InterruptedException ex) {
124	<	unexpectedException();
125	<	}
70	>	final CountDownLatch threadStarted = new CountDownLatch(1);
71	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
72	>	public void realRun() throws InterruptedException {
73	>	threadStarted.countDown();
74	>	e.exchange(one);
75	>	}});
76	>
77	>	await(threadStarted);
78	>	t.interrupt();
79	>	awaitTermination(t);
80		}
81
82		/**
83		* interrupt during wait for timed exchange throws IE
84		*/
85	<	public void testTimedExchange_InterruptedException(){
85	>	public void testTimedExchange_InterruptedException() {
86		final Exchanger e = new Exchanger();
87	<	Thread t = new Thread(new Runnable() {
88	<	public void run(){
89	<	try {
90	<	e.exchange(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
91	<	threadShouldThrow();
92	<	} catch (InterruptedException success){
93	<	} catch (Exception e2){
94	<	threadFail("should throw IE");
95	<	}
96	<	}
143	<	});
144	<	try {
145	<	t.start();
146	<	t.interrupt();
147	<	t.join();
148	<	} catch (InterruptedException ex){
149	<	unexpectedException();
150	<	}
87	>	final CountDownLatch threadStarted = new CountDownLatch(1);
88	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
89	>	public void realRun() throws Exception {
90	>	threadStarted.countDown();
91	>	e.exchange(null, LONG_DELAY_MS, MILLISECONDS);
92	>	}});
93	>
94	>	await(threadStarted);
95	>	t.interrupt();
96	>	awaitTermination(t);
97		}
98
99		/**
100	<	* timeout during wait for timed exchange throws TOE
101	<	*/
102	<	public void testExchange_TimeOutException(){
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){
111	<	threadFail("should throw TOE");
112	<	}
113	<	}
114	<	});
169	<	try {
170	<	t.start();
171	<	t.join();
172	<	} catch (InterruptedException ex){
173	<	unexpectedException();
174	<	}
100	>	* timeout during wait for timed exchange throws TimeoutException
101	>	*/
102	>	public void testExchange_TimeoutException() {
103	>	final Exchanger e = new Exchanger();
104	>	Thread t = newStartedThread(new CheckedRunnable() {
105	>	public void realRun() throws Exception {
106	>	long startTime = System.nanoTime();
107	>	try {
108	>	e.exchange(null, timeoutMillis(), MILLISECONDS);
109	>	shouldThrow();
110	>	} catch (TimeoutException success) {}
111	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
112	>	}});
113	>
114	>	awaitTermination(t);
115		}
116
117		/**
#	Line 179 | Line 119 | public class ExchangerTest extends JSR16
119		*/
120		public void testReplacementAfterExchange() {
121		final Exchanger e = new Exchanger();
122	<	Thread t1 = new Thread(new Runnable(){
123	<	public void run(){
124	<	try {
125	<	Object v = e.exchange(one);
126	<	threadAssertEquals(v, two);
127	<	Object w = e.exchange(v);
128	<	threadShouldThrow();
129	<	} catch (InterruptedException success){
130	<	}
131	<	}
132	<	});
133	<	Thread t2 = new Thread(new Runnable(){
134	<	public void run(){
135	<	try {
136	<	Object v = e.exchange(two);
137	<	threadAssertEquals(v, one);
138	<	Thread.sleep(SMALL_DELAY_MS);
139	<	Object w = e.exchange(v);
140	<	threadAssertEquals(w, three);
141	<	} catch (InterruptedException e){
142	<	threadUnexpectedException();
143	<	}
144	<	}
145	<	});
146	<	Thread t3 = new Thread(new Runnable(){
147	<	public void run(){
148	<	try {
209	<	Thread.sleep(SMALL_DELAY_MS);
210	<	Object w = e.exchange(three);
211	<	threadAssertEquals(w, one);
212	<	} catch (InterruptedException e){
213	<	threadUnexpectedException();
214	<	}
215	<	}
216	<	});
217	<
218	<	try {
219	<	t1.start();
220	<	t2.start();
221	<	t3.start();
222	<	Thread.sleep(SHORT_DELAY_MS);
223	<	t1.interrupt();
224	<	t1.join();
225	<	t2.join();
226	<	t3.join();
227	<	} catch (InterruptedException ex) {
228	<	unexpectedException();
229	<	}
122	>	final CountDownLatch exchanged = new CountDownLatch(2);
123	>	final CountDownLatch interrupted = new CountDownLatch(1);
124	>	Thread t1 = newStartedThread(new CheckedInterruptedRunnable() {
125	>	public void realRun() throws InterruptedException {
126	>	assertSame(two, e.exchange(one));
127	>	exchanged.countDown();
128	>	e.exchange(two);
129	>	}});
130	>	Thread t2 = newStartedThread(new CheckedRunnable() {
131	>	public void realRun() throws InterruptedException {
132	>	assertSame(one, e.exchange(two));
133	>	exchanged.countDown();
134	>	interrupted.await();
135	>	assertSame(three, e.exchange(one));
136	>	}});
137	>	Thread t3 = newStartedThread(new CheckedRunnable() {
138	>	public void realRun() throws InterruptedException {
139	>	interrupted.await();
140	>	assertSame(one, e.exchange(three));
141	>	}});
142	>
143	>	await(exchanged);
144	>	t1.interrupt();
145	>	awaitTermination(t1);
146	>	interrupted.countDown();
147	>	awaitTermination(t2);
148	>	awaitTermination(t3);
149		}
150
151		}

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