ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/ExchangerTest.java (file contents):
Revision 1.2 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.15 by jsr166, Tue Mar 15 19:47:06 2011 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/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.*;
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	<	public void testExchange() {
23	>	/**
24	>	* exchange exchanges objects across two threads
25	>	*/
26	>	public void testExchange() throws InterruptedException {
27	>	final Exchanger e = new Exchanger();
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() 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);
54	<	threadAssertEquals(v, two);
55	<	Object w = e.exchange(v);
56	<	threadAssertEquals(w, one);
57	<	} catch(InterruptedException e){
58	<	threadFail("unexpected exception");
59	<	}
60	<	}
61	<	});
62	<	Thread t2 = new Thread(new Runnable(){
63	<	public void run(){
64	<	try {
65	<	Object v = e.exchange(two);
66	<	threadAssertEquals(v, one);
67	<	Object w = e.exchange(v);
68	<	threadAssertEquals(w, two);
69	<	} catch(InterruptedException e){
70	<	threadFail("unexpected exception");
71	<	}
72	<	}
73	<	});
74	<	try {
75	<	t1.start();
76	<	t2.start();
77	<	t1.join();
78	<	t2.join();
79	<	} catch(InterruptedException ex) {
80	<	fail("unexpected exception");
54	<	}
55	<	}
56	<
57	<	public void testTimedExchange() {
58	<	final Exchanger e = new Exchanger();
59	<	Thread t1 = new Thread(new Runnable(){
60	<	public void run(){
61	<	try {
62	<	Object v = e.exchange(one, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
63	<	threadAssertEquals(v, two);
64	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
65	<	threadAssertEquals(w, one);
66	<	} catch(InterruptedException e){
67	<	threadFail("unexpected exception");
68	<	} catch(TimeoutException toe) {
69	<	threadFail("unexpected exception");
70	<	}
71	<	}
72	<	});
73	<	Thread t2 = new Thread(new Runnable(){
74	<	public void run(){
75	<	try {
76	<	Object v = e.exchange(two, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
77	<	threadAssertEquals(v, one);
78	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
79	<	threadAssertEquals(w, two);
80	<	} catch(InterruptedException e){
81	<	threadFail("unexpected exception");
82	<	} catch(TimeoutException toe) {
83	<	threadFail("unexpected exception");
84	<	}
85	<	}
86	<	});
87	<	try {
88	<	t1.start();
89	<	t2.start();
90	<	t1.join();
91	<	t2.join();
92	<	} catch(InterruptedException ex) {
93	<	fail("unexpected exception");
94	<	}
95	<	}
96	<
97	<	public void testExchange_InterruptedException(){
98	<	final Exchanger e = new Exchanger();
99	<	Thread t = new Thread(new Runnable() {
100	<	public void run(){
101	<	try {
102	<	e.exchange(one);
103	<	threadFail("should throw");
104	<	} catch(InterruptedException success){
105	<	}
106	<	}
107	<	});
108	<	try {
109	<	t.start();
110	<	Thread.sleep(SHORT_DELAY_MS);
111	<	t.interrupt();
112	<	t.join();
113	<	} catch(InterruptedException ex) {
114	<	fail("unexpected exception");
115	<	}
116	<	}
117	<
118	<	public void testTimedExchange_InterruptedException(){
119	<	final Exchanger e = new Exchanger();
120	<	Thread t = new Thread(new Runnable() {
121	<	public void run(){
122	<	try {
123	<	e.exchange(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
124	<	threadFail("should throw");
125	<	} catch(InterruptedException success){
126	<	} catch(Exception e2){
127	<	threadFail("should throw IE");
128	<	}
129	<	}
130	<	});
131	<	try {
132	<	t.start();
133	<	t.interrupt();
134	<	t.join();
135	<	} catch(InterruptedException ex){
136	<	fail("unexpected exception");
137	<	}
138	<	}
139	<
140	<	public void testExchange_TimeOutException(){
141	<	final Exchanger e = new Exchanger();
142	<	Thread t = new Thread(new Runnable() {
143	<	public void run(){
144	<	try {
145	<	e.exchange(null, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
146	<	threadFail("should throw");
147	<	} catch(TimeoutException success){
148	<	} catch(InterruptedException e2){
149	<	threadFail("should throw TOE");
150	<	}
151	<	}
152	<	});
153	<	try {
154	<	t.start();
155	<	t.join();
156	<	} catch(InterruptedException ex){
157	<	fail("unexpected exception");
158	<	}
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() throws InterruptedException {
71	>	final Exchanger e = new Exchanger();
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() throws InterruptedException {
87	+	final Exchanger e = new Exchanger();
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() throws InterruptedException {
103	+	final Exchanger e = new Exchanger();
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() throws InterruptedException {
117	+	final Exchanger e = new Exchanger();
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		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines