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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 1.16 by dl, Fri May 6 11:22:07 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		*/
#	Line 9 | Line 9
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
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 {
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	<	}
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(){
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 = 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	<	});
118	<	try {
119	<	t.start();
120	<	Thread.sleep(SHORT_DELAY_MS);
121	<	t.interrupt();
122	<	t.join();
123	<	} catch (InterruptedException ex) {
124	<	unexpectedException();
125	<	}
72	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
73	>	public void realRun() throws InterruptedException {
74	>	e.exchange(one);
75	>	}});
76	>
77	>	t.start();
78	>	delay(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	<	}
142	<	}
143	<	});
144	<	try {
145	<	t.start();
146	<	t.interrupt();
147	<	t.join();
148	<	} catch (InterruptedException ex){
149	<	unexpectedException();
150	<	}
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	>	delay(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){
165	<	threadFail("should throw TOE");
166	<	}
167	<	}
168	<	});
169	<	try {
170	<	t.start();
171	<	t.join();
172	<	} catch (InterruptedException ex){
173	<	unexpectedException();
174	<	}
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(){
207	<	public void run(){
208	<	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	<	}
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	>	delay(SMALL_DELAY_MS);
127	>	assertSame(three, e.exchange(one));
128	>	}});
129	>	Thread t3 = new Thread(new CheckedRunnable() {
130	>	public void realRun() throws InterruptedException {
131	>	delay(SMALL_DELAY_MS);
132	>	assertSame(one, e.exchange(three));
133	>	}});
134	>
135	>	t1.start();
136	>	t2.start();
137	>	t3.start();
138	>	delay(SHORT_DELAY_MS);
139	>	t1.interrupt();
140	>	t1.join();
141	>	t2.join();
142	>	t3.join();
143		}
144
145		}

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