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

Comparing jsr166/src/test/tck/ExchangerTest.java (file contents):
Revision 1.8 by jsr166, Mon Nov 16 05:30:07 2009 UTC vs.
Revision 1.24 by jsr166, Sat Mar 25 21:41:10 2017 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.*;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>
11	>	import java.util.concurrent.CountDownLatch;
12	>	import java.util.concurrent.Exchanger;
13	>	import java.util.concurrent.TimeoutException;
14	>
15	>	import junit.framework.Test;
16	>	import junit.framework.TestSuite;
17
18		public class ExchangerTest extends JSR166TestCase {
19
20		public static void main(String[] args) {
21	<	junit.textui.TestRunner.run (suite());
21	>	main(suite(), args);
22		}
23		public static Test suite() {
24	<	return new TestSuite(ExchangerTest.class);
24	>	return new TestSuite(ExchangerTest.class);
25		}
26
27		/**
#	Line 24 | Line 29 | public class ExchangerTest extends JSR16
29		*/
30		public void testExchange() {
31		final Exchanger e = new Exchanger();
32	<	Thread t1 = new Thread(new Runnable() {
33	<	public void run() {
34	<	try {
35	<	Object v = e.exchange(one);
36	<	threadAssertEquals(v, two);
37	<	Object w = e.exchange(v);
38	<	threadAssertEquals(w, one);
39	<	} catch (InterruptedException e) {
40	<	threadUnexpectedException();
41	<	}
42	<	}
43	<	});
44	<	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	<	}
32	>	Thread t1 = newStartedThread(new CheckedRunnable() {
33	>	public void realRun() throws InterruptedException {
34	>	assertSame(one, e.exchange(two));
35	>	assertSame(two, e.exchange(one));
36	>	}});
37	>	Thread t2 = newStartedThread(new CheckedRunnable() {
38	>	public void realRun() throws InterruptedException {
39	>	assertSame(two, e.exchange(one));
40	>	assertSame(one, e.exchange(two));
41	>	}});
42	>
43	>	awaitTermination(t1);
44	>	awaitTermination(t2);
45		}
46
47		/**
#	Line 63 | Line 49 | public class ExchangerTest extends JSR16
49		*/
50		public void testTimedExchange() {
51		final Exchanger e = new Exchanger();
52	<	Thread t1 = new Thread(new Runnable() {
53	<	public void run() {
54	<	try {
55	<	Object v = e.exchange(one, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
56	<	threadAssertEquals(v, two);
57	<	Object w = e.exchange(v, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
58	<	threadAssertEquals(w, one);
59	<	} catch (InterruptedException e) {
60	<	threadUnexpectedException();
61	<	} catch (TimeoutException toe) {
62	<	threadUnexpectedException();
63	<	}
64	<	}
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	<	}
52	>	Thread t1 = newStartedThread(new CheckedRunnable() {
53	>	public void realRun() throws Exception {
54	>	assertSame(one, e.exchange(two, LONG_DELAY_MS, MILLISECONDS));
55	>	assertSame(two, e.exchange(one, LONG_DELAY_MS, MILLISECONDS));
56	>	}});
57	>	Thread t2 = newStartedThread(new CheckedRunnable() {
58	>	public void realRun() throws Exception {
59	>	assertSame(two, e.exchange(one, LONG_DELAY_MS, MILLISECONDS));
60	>	assertSame(one, e.exchange(two, LONG_DELAY_MS, MILLISECONDS));
61	>	}});
62	>
63	>	awaitTermination(t1);
64	>	awaitTermination(t2);
65		}
66
67		/**
#	Line 106 | Line 69 | public class ExchangerTest extends JSR16
69		*/
70		public void testExchange_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	<	});
81	<	try {
119	<	t.start();
120	<	Thread.sleep(SHORT_DELAY_MS);
121	<	t.interrupt();
122	<	t.join();
123	<	} catch (InterruptedException ex) {
124	<	unexpectedException();
125	<	}
72	>	final CountDownLatch threadStarted = new CountDownLatch(1);
73	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
74	>	public void realRun() throws InterruptedException {
75	>	threadStarted.countDown();
76	>	e.exchange(one);
77	>	}});
78	>
79	>	await(threadStarted);
80	>	t.interrupt();
81	>	awaitTermination(t);
82		}
83
84		/**
#	Line 130 | Line 86 | public class ExchangerTest extends JSR16
86		*/
87		public void testTimedExchange_InterruptedException() {
88		final Exchanger e = new Exchanger();
89	<	Thread t = new Thread(new Runnable() {
90	<	public void run() {
91	<	try {
92	<	e.exchange(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
93	<	threadShouldThrow();
94	<	} catch (InterruptedException success) {
95	<	} catch (Exception e2) {
96	<	threadFail("should throw IE");
97	<	}
98	<	}
143	<	});
144	<	try {
145	<	t.start();
146	<	t.interrupt();
147	<	t.join();
148	<	} catch (InterruptedException ex) {
149	<	unexpectedException();
150	<	}
89	>	final CountDownLatch threadStarted = new CountDownLatch(1);
90	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
91	>	public void realRun() throws Exception {
92	>	threadStarted.countDown();
93	>	e.exchange(null, LONG_DELAY_MS, MILLISECONDS);
94	>	}});
95	>
96	>	await(threadStarted);
97	>	t.interrupt();
98	>	awaitTermination(t);
99		}
100
101		/**
102	<	* timeout during wait for timed exchange throws TOE
103	<	*/
104	<	public void testExchange_TimeOutException() {
105	<	final Exchanger e = new Exchanger();
106	<	Thread t = new Thread(new Runnable() {
107	<	public void run() {
108	<	try {
109	<	e.exchange(null, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
110	<	threadShouldThrow();
111	<	} catch (TimeoutException success) {
112	<	} catch (InterruptedException e2) {
113	<	threadFail("should throw TOE");
114	<	}
115	<	}
116	<	});
169	<	try {
170	<	t.start();
171	<	t.join();
172	<	} catch (InterruptedException ex) {
173	<	unexpectedException();
174	<	}
102	>	* timeout during wait for timed exchange throws TimeoutException
103	>	*/
104	>	public void testExchange_TimeoutException() {
105	>	final Exchanger e = new Exchanger();
106	>	Thread t = newStartedThread(new CheckedRunnable() {
107	>	public void realRun() throws Exception {
108	>	long startTime = System.nanoTime();
109	>	try {
110	>	e.exchange(null, timeoutMillis(), MILLISECONDS);
111	>	shouldThrow();
112	>	} catch (TimeoutException success) {}
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114	>	}});
115	>
116	>	awaitTermination(t);
117		}
118
119		/**
#	Line 179 | Line 121 | public class ExchangerTest extends JSR16
121		*/
122		public void testReplacementAfterExchange() {
123		final Exchanger e = new Exchanger();
124	<	Thread t1 = new Thread(new Runnable() {
125	<	public void run() {
126	<	try {
127	<	Object v = e.exchange(one);
128	<	threadAssertEquals(v, two);
129	<	Object w = e.exchange(v);
130	<	threadShouldThrow();
131	<	} catch (InterruptedException success) {
132	<	}
133	<	}
134	<	});
135	<	Thread t2 = new Thread(new Runnable() {
136	<	public void run() {
137	<	try {
138	<	Object v = e.exchange(two);
139	<	threadAssertEquals(v, one);
140	<	Thread.sleep(SMALL_DELAY_MS);
141	<	Object w = e.exchange(v);
142	<	threadAssertEquals(w, three);
143	<	} catch (InterruptedException e) {
144	<	threadUnexpectedException();
145	<	}
146	<	}
147	<	});
148	<	Thread t3 = new Thread(new Runnable() {
149	<	public void run() {
150	<	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	<	}
124	>	final CountDownLatch exchanged = new CountDownLatch(2);
125	>	final CountDownLatch interrupted = new CountDownLatch(1);
126	>	Thread t1 = newStartedThread(new CheckedInterruptedRunnable() {
127	>	public void realRun() throws InterruptedException {
128	>	assertSame(two, e.exchange(one));
129	>	exchanged.countDown();
130	>	e.exchange(two);
131	>	}});
132	>	Thread t2 = newStartedThread(new CheckedRunnable() {
133	>	public void realRun() throws InterruptedException {
134	>	assertSame(one, e.exchange(two));
135	>	exchanged.countDown();
136	>	await(interrupted);
137	>	assertSame(three, e.exchange(one));
138	>	}});
139	>	Thread t3 = newStartedThread(new CheckedRunnable() {
140	>	public void realRun() throws InterruptedException {
141	>	await(interrupted);
142	>	assertSame(one, e.exchange(three));
143	>	}});
144	>
145	>	await(exchanged);
146	>	t1.interrupt();
147	>	awaitTermination(t1);
148	>	interrupted.countDown();
149	>	awaitTermination(t2);
150	>	awaitTermination(t3);
151		}
152
153		}

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