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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 1.12 by jsr166, Mon Nov 30 08:31:09 2009 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 {
43	<	Object v = e.exchange(two);
44	<	threadAssertEquals(v, one);
45	<	Object w = e.exchange(v);
46	<	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	>	Object v = e.exchange(one);
31	>	threadAssertEquals(v, two);
32	>	Object w = e.exchange(v);
33	>	threadAssertEquals(w, one);
34	>	}});
35	>	Thread t2 = new Thread(new CheckedRunnable() {
36	>	public void realRun() throws InterruptedException {
37	>	Object v = e.exchange(two);
38	>	threadAssertEquals(v, one);
39	>	Object w = e.exchange(v);
40	>	threadAssertEquals(w, two);
41	>	}});
42	>
43	>	t1.start();
44	>	t2.start();
45	>	t1.join();
46	>	t2.join();
47		}
48
49		/**
50		* timed exchange exchanges objects across two threads
51		*/
52	<	public void testTimedExchange() {
52	>	public void testTimedExchange() throws InterruptedException {
53		final Exchanger e = new Exchanger();
54	<	Thread t1 = new Thread(new Runnable(){
55	<	public void run(){
56	<	try {
57	<	Object v = e.exchange(one, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
58	<	threadAssertEquals(v, two);
59	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
60	<	threadAssertEquals(w, one);
61	<	} catch(InterruptedException e){
62	<	threadUnexpectedException();
63	<	} catch(TimeoutException toe) {
64	<	threadUnexpectedException();
65	<	}
66	<	}
67	<	});
68	<	Thread t2 = new Thread(new Runnable(){
69	<	public void run(){
70	<	try {
71	<	Object v = e.exchange(two, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
72	<	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	<	}
54	>	Thread t1 = new Thread(new CheckedRunnable() {
55	>	public void realRun() throws Exception {
56	>	Object v = e.exchange(one, SHORT_DELAY_MS, MILLISECONDS);
57	>	threadAssertEquals(v, two);
58	>	Object w = e.exchange(v, SHORT_DELAY_MS, MILLISECONDS);
59	>	threadAssertEquals(w, one);
60	>	}});
61	>	Thread t2 = new Thread(new CheckedRunnable() {
62	>	public void realRun() throws Exception {
63	>	Object v = e.exchange(two, SHORT_DELAY_MS, MILLISECONDS);
64	>	threadAssertEquals(v, one);
65	>	Object w = e.exchange(v, SHORT_DELAY_MS, MILLISECONDS);
66	>	threadAssertEquals(w, two);
67	>	}});
68	>
69	>	t1.start();
70	>	t2.start();
71	>	t1.join();
72	>	t2.join();
73		}
74
75		/**
76		* interrupt during wait for exchange throws IE
77		*/
78	<	public void testExchange_InterruptedException(){
78	>	public void testExchange_InterruptedException() throws InterruptedException {
79		final Exchanger e = new Exchanger();
80	<	Thread t = new Thread(new Runnable() {
81	<	public void run(){
82	<	try {
83	<	e.exchange(one);
84	<	threadShouldThrow();
85	<	} catch(InterruptedException success){
86	<	}
87	<	}
88	<	});
117	<	try {
118	<	t.start();
119	<	Thread.sleep(SHORT_DELAY_MS);
120	<	t.interrupt();
121	<	t.join();
122	<	} catch(InterruptedException ex) {
123	<	unexpectedException();
124	<	}
80	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
81	>	public void realRun() throws InterruptedException {
82	>	e.exchange(one);
83	>	}});
84	>
85	>	t.start();
86	>	Thread.sleep(SHORT_DELAY_MS);
87	>	t.interrupt();
88	>	t.join();
89		}
90
91		/**
92		* interrupt during wait for timed exchange throws IE
93		*/
94	<	public void testTimedExchange_InterruptedException(){
94	>	public void testTimedExchange_InterruptedException() throws InterruptedException {
95		final Exchanger e = new Exchanger();
96	<	Thread t = new Thread(new Runnable() {
97	<	public void run(){
98	<	try {
99	<	e.exchange(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
100	<	threadShouldThrow();
101	<	} catch(InterruptedException success){
102	<	} catch(Exception e2){
103	<	threadFail("should throw IE");
104	<	}
141	<	}
142	<	});
143	<	try {
144	<	t.start();
145	<	t.interrupt();
146	<	t.join();
147	<	} catch(InterruptedException ex){
148	<	unexpectedException();
149	<	}
96	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
97	>	public void realRun() throws Exception {
98	>	e.exchange(null, MEDIUM_DELAY_MS, MILLISECONDS);
99	>	}});
100	>
101	>	t.start();
102	>	Thread.sleep(SHORT_DELAY_MS);
103	>	t.interrupt();
104	>	t.join();
105		}
106
107		/**
108		* timeout during wait for timed exchange throws TOE
109		*/
110	<	public void testExchange_TimeOutException(){
110	>	public void testExchange_TimeOutException() throws InterruptedException {
111		final Exchanger e = new Exchanger();
112	<	Thread t = new Thread(new Runnable() {
113	<	public void run(){
114	<	try {
115	<	e.exchange(null, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
116	<	threadShouldThrow();
117	<	} catch(TimeoutException success){
118	<	} catch(InterruptedException e2){
119	<	threadFail("should throw TOE");
120	<	}
121	<	}
167	<	});
168	<	try {
169	<	t.start();
170	<	t.join();
171	<	} catch(InterruptedException ex){
172	<	unexpectedException();
173	<	}
112	>	Thread t = new Thread(new CheckedRunnable() {
113	>	public void realRun() throws Exception {
114	>	try {
115	>	e.exchange(null, SHORT_DELAY_MS, MILLISECONDS);
116	>	threadShouldThrow();
117	>	} catch (TimeoutException success) {}
118	>	}});
119	>
120	>	t.start();
121	>	t.join();
122		}
123
124		/**
125		* If one exchanging thread is interrupted, another succeeds.
126		*/
127	<	public void testReplacementAfterExchange() {
127	>	public void testReplacementAfterExchange() throws InterruptedException {
128		final Exchanger e = new Exchanger();
129	<	Thread t1 = new Thread(new Runnable(){
130	<	public void run(){
131	<	try {
132	<	Object v = e.exchange(one);
133	<	threadAssertEquals(v, two);
134	<	Object w = e.exchange(v);
135	<	threadShouldThrow();
136	<	} catch(InterruptedException success){
137	<	}
138	<	}
139	<	});
140	<	Thread t2 = new Thread(new Runnable(){
141	<	public void run(){
142	<	try {
143	<	Object v = e.exchange(two);
144	<	threadAssertEquals(v, one);
145	<	Thread.sleep(SMALL_DELAY_MS);
146	<	Object w = e.exchange(v);
147	<	threadAssertEquals(w, three);
148	<	} catch(InterruptedException e){
149	<	threadUnexpectedException();
150	<	}
151	<	}
152	<	});
153	<	Thread t3 = new Thread(new Runnable(){
154	<	public void run(){
155	<	try {
156	<	Thread.sleep(SMALL_DELAY_MS);
157	<	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	<	}
129	>	Thread t1 = new Thread(new CheckedInterruptedRunnable() {
130	>	public void realRun() throws InterruptedException {
131	>	Object v = e.exchange(one);
132	>	threadAssertEquals(v, two);
133	>	Object w = e.exchange(v);
134	>	}});
135	>	Thread t2 = new Thread(new CheckedRunnable() {
136	>	public void realRun() throws InterruptedException {
137	>	Object v = e.exchange(two);
138	>	threadAssertEquals(v, one);
139	>	Thread.sleep(SMALL_DELAY_MS);
140	>	Object w = e.exchange(v);
141	>	threadAssertEquals(w, three);
142	>	}});
143	>	Thread t3 = new Thread(new CheckedRunnable() {
144	>	public void realRun() throws InterruptedException {
145	>	Thread.sleep(SMALL_DELAY_MS);
146	>	Object w = e.exchange(three);
147	>	threadAssertEquals(w, one);
148	>	}});
149	>
150	>	t1.start();
151	>	t2.start();
152	>	t3.start();
153	>	Thread.sleep(SHORT_DELAY_MS);
154	>	t1.interrupt();
155	>	t1.join();
156	>	t2.join();
157	>	t3.join();
158		}
159
160		}

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