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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.43 by jsr166, Fri May 27 19:48:58 2011 UTC vs.
Revision 1.52 by jsr166, Mon Sep 14 03:27:11 2015 UTC

#	Line 6 | Line 6
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	<	import java.util.concurrent.atomic.*;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.List;
13	>	import java.util.concurrent.BlockingQueue;
14	>	import java.util.concurrent.Callable;
15	>	import java.util.concurrent.CancellationException;
16	>	import java.util.concurrent.CountDownLatch;
17	>	import java.util.concurrent.ExecutionException;
18	>	import java.util.concurrent.Executors;
19	>	import java.util.concurrent.ExecutorService;
20	>	import java.util.concurrent.Future;
21	>	import java.util.concurrent.RejectedExecutionException;
22	>	import java.util.concurrent.ScheduledFuture;
23	>	import java.util.concurrent.ScheduledThreadPoolExecutor;
24	>	import java.util.concurrent.ThreadFactory;
25	>	import java.util.concurrent.ThreadPoolExecutor;
26	>	import java.util.concurrent.atomic.AtomicInteger;
27	>
28	>	import junit.framework.Test;
29	>	import junit.framework.TestSuite;
30
31		public class ScheduledExecutorTest extends JSR166TestCase {
32		public static void main(String[] args) {
33	<	junit.textui.TestRunner.run(suite());
33	>	main(suite(), args);
34		}
35		public static Test suite() {
36		return new TestSuite(ScheduledExecutorTest.class);
#	Line 43 | Line 59 | public class ScheduledExecutorTest exten
59		*/
60		public void testSchedule1() throws Exception {
61		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
62	<	final long t0 = System.nanoTime();
47	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
62	>	final long startTime = System.nanoTime();
63		final CountDownLatch done = new CountDownLatch(1);
64		try {
65		Callable task = new CheckedCallable<Boolean>() {
66		public Boolean realCall() {
67		done.countDown();
68	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
68	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
69		return Boolean.TRUE;
70		}};
71	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
72	<	assertEquals(Boolean.TRUE, f.get());
73	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
71	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
72	>	assertSame(Boolean.TRUE, f.get());
73	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
74		assertTrue(done.await(0L, MILLISECONDS));
75		} finally {
76		joinPool(p);
#	Line 67 | Line 82 | public class ScheduledExecutorTest exten
82		*/
83		public void testSchedule3() throws Exception {
84		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
85	<	final long t0 = System.nanoTime();
71	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
85	>	final long startTime = System.nanoTime();
86		final CountDownLatch done = new CountDownLatch(1);
87		try {
88		Runnable task = new CheckedRunnable() {
89		public void realRun() {
90		done.countDown();
91	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
91	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
92		}};
93	<	Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS);
94	<	assertNull(f.get());
95	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
96	<	assertTrue(done.await(0L, MILLISECONDS));
93	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
94	>	await(done);
95	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
96	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
97		} finally {
98		joinPool(p);
99		}
#	Line 90 | Line 104 | public class ScheduledExecutorTest exten
104		*/
105		public void testSchedule4() throws Exception {
106		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
107	<	final long t0 = System.nanoTime();
94	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
107	>	final long startTime = System.nanoTime();
108		final CountDownLatch done = new CountDownLatch(1);
109		try {
110		Runnable task = new CheckedRunnable() {
111		public void realRun() {
112		done.countDown();
113	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114		}};
115		ScheduledFuture f =
116	<	p.scheduleAtFixedRate(task, SHORT_DELAY_MS,
117	<	SHORT_DELAY_MS, MILLISECONDS);
118	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
119	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
116	>	p.scheduleAtFixedRate(task, timeoutMillis(),
117	>	LONG_DELAY_MS, MILLISECONDS);
118	>	await(done);
119	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
120		f.cancel(true);
121		} finally {
122		joinPool(p);
#	Line 113 | Line 126 | public class ScheduledExecutorTest exten
126		/**
127		* scheduleWithFixedDelay executes runnable after given initial delay
128		*/
129	<	public void testSchedule5() throws InterruptedException {
129	>	public void testSchedule5() throws Exception {
130		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
131	<	final long t0 = System.nanoTime();
119	<	final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L;
131	>	final long startTime = System.nanoTime();
132		final CountDownLatch done = new CountDownLatch(1);
133		try {
134		Runnable task = new CheckedRunnable() {
135		public void realRun() {
136		done.countDown();
137	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
137	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
138		}};
139		ScheduledFuture f =
140	<	p.scheduleWithFixedDelay(task, SHORT_DELAY_MS,
141	<	SHORT_DELAY_MS, MILLISECONDS);
142	<	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
143	<	assertTrue(System.nanoTime() - t0 >= timeoutNanos);
140	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
141	>	LONG_DELAY_MS, MILLISECONDS);
142	>	await(done);
143	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
144		f.cancel(true);
145		} finally {
146		joinPool(p);
#	Line 145 | Line 157 | public class ScheduledExecutorTest exten
157		*/
158		public void testFixedRateSequence() throws InterruptedException {
159		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
160	<	RunnableCounter counter = new RunnableCounter();
161	<	ScheduledFuture h =
162	<	p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS);
163	<	delay(SMALL_DELAY_MS);
164	<	h.cancel(true);
165	<	int c = counter.count.get();
166	<	// By time scaling conventions, we must have at least
167	<	// an execution per SHORT delay, but no more than one SHORT more
168	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
169	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
170	<	joinPool(p);
160	>	try {
161	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
162	>	long startTime = System.nanoTime();
163	>	int cycles = 10;
164	>	final CountDownLatch done = new CountDownLatch(cycles);
165	>	Runnable task = new CheckedRunnable() {
166	>	public void realRun() { done.countDown(); }};
167	>	ScheduledFuture h =
168	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
169	>	done.await();
170	>	h.cancel(true);
171	>	double normalizedTime =
172	>	(double) millisElapsedSince(startTime) / delay;
173	>	if (normalizedTime >= cycles - 1 &&
174	>	normalizedTime <= cycles)
175	>	return;
176	>	}
177	>	throw new AssertionError("unexpected execution rate");
178	>	} finally {
179	>	joinPool(p);
180	>	}
181		}
182
183		/**
#	Line 163 | Line 185 | public class ScheduledExecutorTest exten
185		*/
186		public void testFixedDelaySequence() throws InterruptedException {
187		ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
188	<	RunnableCounter counter = new RunnableCounter();
189	<	ScheduledFuture h =
190	<	p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS);
191	<	delay(SMALL_DELAY_MS);
192	<	h.cancel(true);
193	<	int c = counter.count.get();
194	<	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
195	<	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
196	<	joinPool(p);
188	>	try {
189	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
190	>	long startTime = System.nanoTime();
191	>	int cycles = 10;
192	>	final CountDownLatch done = new CountDownLatch(cycles);
193	>	Runnable task = new CheckedRunnable() {
194	>	public void realRun() { done.countDown(); }};
195	>	ScheduledFuture h =
196	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
197	>	done.await();
198	>	h.cancel(true);
199	>	double normalizedTime =
200	>	(double) millisElapsedSince(startTime) / delay;
201	>	if (normalizedTime >= cycles - 1 &&
202	>	normalizedTime <= cycles)
203	>	return;
204	>	}
205	>	throw new AssertionError("unexpected execution rate");
206	>	} finally {
207	>	joinPool(p);
208	>	}
209		}
210
211		/**
#	Line 324 | Line 358 | public class ScheduledExecutorTest exten
358		threadProceed.await();
359		threadDone.countDown();
360		}});
361	<	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
361	>	await(threadStarted);
362		assertEquals(0, p.getCompletedTaskCount());
363		threadProceed.countDown();
364		threadDone.await();
365	<	delay(SHORT_DELAY_MS);
366	<	assertEquals(1, p.getCompletedTaskCount());
365	>	long startTime = System.nanoTime();
366	>	while (p.getCompletedTaskCount() != 1) {
367	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
368	>	fail("timed out");
369	>	Thread.yield();
370	>	}
371		} finally {
372		joinPool(p);
373		}
#	Line 1149 | Line 1187 | public class ScheduledExecutorTest exten
1187		public void testTimedInvokeAll6() throws Exception {
1188		ExecutorService e = new ScheduledThreadPoolExecutor(2);
1189		try {
1190	<	List<Callable<String>> l = new ArrayList<Callable<String>>();
1191	<	l.add(new StringTask());
1192	<	l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
1193	<	l.add(new StringTask());
1194	<	List<Future<String>> futures =
1195	<	e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
1196	<	assertEquals(3, futures.size());
1197	<	Iterator<Future<String>> it = futures.iterator();
1198	<	Future<String> f1 = it.next();
1199	<	Future<String> f2 = it.next();
1200	<	Future<String> f3 = it.next();
1201	<	assertTrue(f1.isDone());
1202	<	assertTrue(f2.isDone());
1203	<	assertTrue(f3.isDone());
1204	<	assertFalse(f1.isCancelled());
1205	<	assertTrue(f2.isCancelled());
1190	>	for (long timeout = timeoutMillis();;) {
1191	>	List<Callable<String>> tasks = new ArrayList<>();
1192	>	tasks.add(new StringTask("0"));
1193	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1194	>	tasks.add(new StringTask("2"));
1195	>	long startTime = System.nanoTime();
1196	>	List<Future<String>> futures =
1197	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1198	>	assertEquals(tasks.size(), futures.size());
1199	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1200	>	for (Future future : futures)
1201	>	assertTrue(future.isDone());
1202	>	assertTrue(futures.get(1).isCancelled());
1203	>	try {
1204	>	assertEquals("0", futures.get(0).get());
1205	>	assertEquals("2", futures.get(2).get());
1206	>	break;
1207	>	} catch (CancellationException retryWithLongerTimeout) {
1208	>	timeout *= 2;
1209	>	if (timeout >= LONG_DELAY_MS / 2)
1210	>	fail("expected exactly one task to be cancelled");
1211	>	}
1212	>	}
1213		} finally {
1214		joinPool(e);
1215		}

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