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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.23 by jsr166, Thu Nov 19 03:55:29 2009 UTC vs.
Revision 1.34 by jsr166, Sat Oct 9 19:30:35 2010 UTC

#	Line 10 | Line 10
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.math.BigInteger;
15		import java.security.*;
16
17		public class ExecutorsTest extends JSR166TestCase {
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
22		return new TestSuite(ExecutorsTest.class);
23		}
24
24	–	static class TimedCallable<T> implements Callable<T> {
25	–	private final ExecutorService exec;
26	–	private final Callable<T> func;
27	–	private final long msecs;
28	–
29	–	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
30	–	this.exec = exec;
31	–	this.func = func;
32	–	this.msecs = msecs;
33	–	}
34	–
35	–	public T call() throws Exception {
36	–	Future<T> ftask = exec.submit(func);
37	–	try {
38	–	return ftask.get(msecs, TimeUnit.MILLISECONDS);
39	–	} finally {
40	–	ftask.cancel(true);
41	–	}
42	–	}
43	–	}
44	–
45	–
46	–	private static class Fib implements Callable<BigInteger> {
47	–	private final BigInteger n;
48	–	Fib(long n) {
49	–	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
50	–	this.n = BigInteger.valueOf(n);
51	–	}
52	–	public BigInteger call() {
53	–	BigInteger f1 = BigInteger.ONE;
54	–	BigInteger f2 = f1;
55	–	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
56	–	BigInteger t = f1.add(f2);
57	–	f1 = f2;
58	–	f2 = t;
59	–	}
60	–	return f1;
61	–	}
62	–	};
63	–
25		/**
26		* A newCachedThreadPool can execute runnables
27		*/
#	Line 220 | Line 181 | public class ExecutorsTest extends JSR16
181		* a newSingleThreadScheduledExecutor successfully runs delayed task
182		*/
183		public void testNewSingleThreadScheduledExecutor() throws Exception {
184	<	try {
185	<	TrackedCallable callable = new TrackedCallable();
186	<	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
187	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
188	<	assertFalse(callable.done);
189	<	Thread.sleep(MEDIUM_DELAY_MS);
190	<	assertTrue(callable.done);
191	<	assertEquals(Boolean.TRUE, f.get());
231	<	joinPool(p1);
232	<	} catch (RejectedExecutionException e) {}
184	>	TrackedCallable callable = new TrackedCallable();
185	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
186	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
187	>	assertFalse(callable.done);
188	>	Thread.sleep(MEDIUM_DELAY_MS);
189	>	assertTrue(callable.done);
190	>	assertEquals(Boolean.TRUE, f.get());
191	>	joinPool(p1);
192		}
193
194		/**
195		* a newScheduledThreadPool successfully runs delayed task
196		*/
197		public void testnewScheduledThreadPool() throws Exception {
198	<	try {
199	<	TrackedCallable callable = new TrackedCallable();
200	<	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
201	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
202	<	assertFalse(callable.done);
203	<	Thread.sleep(MEDIUM_DELAY_MS);
204	<	assertTrue(callable.done);
205	<	assertEquals(Boolean.TRUE, f.get());
247	<	joinPool(p1);
248	<	} catch (RejectedExecutionException e) {}
198	>	TrackedCallable callable = new TrackedCallable();
199	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
200	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
201	>	assertFalse(callable.done);
202	>	Thread.sleep(MEDIUM_DELAY_MS);
203	>	assertTrue(callable.done);
204	>	assertEquals(Boolean.TRUE, f.get());
205	>	joinPool(p1);
206		}
207
208		/**
209	<	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
209	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
210		*/
211		public void testunconfigurableScheduledExecutorService() throws Exception {
212	<	try {
213	<	TrackedCallable callable = new TrackedCallable();
214	<	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
215	<	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
216	<	assertFalse(callable.done);
217	<	Thread.sleep(MEDIUM_DELAY_MS);
218	<	assertTrue(callable.done);
219	<	assertEquals(Boolean.TRUE, f.get());
263	<	joinPool(p1);
264	<	} catch (RejectedExecutionException e) {}
212	>	TrackedCallable callable = new TrackedCallable();
213	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
214	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
215	>	assertFalse(callable.done);
216	>	Thread.sleep(MEDIUM_DELAY_MS);
217	>	assertTrue(callable.done);
218	>	assertEquals(Boolean.TRUE, f.get());
219	>	joinPool(p1);
220		}
221
222		/**
223	<	*  timeouts from execute will time out if they compute too long.
223	>	* Future.get on submitted tasks will time out if they compute too long.
224		*/
225		public void testTimedCallable() throws Exception {
226	<	int N = 10000;
227	<	ExecutorService executor = Executors.newSingleThreadExecutor();
228	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
229	<	try {
230	<	long startTime = System.currentTimeMillis();
231	<
232	<	long i = 0;
233	<	while (tasks.size() < N) {
234	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
235	<	i += 10;
236	<	}
237	<
238	<	int iters = 0;
284	<	BigInteger sum = BigInteger.ZERO;
285	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
226	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
227	>	public void realRun() throws InterruptedException {
228	>	Thread.sleep(LONG_DELAY_MS);
229	>	}};
230	>	for (ExecutorService executor :
231	>	new ExecutorService[] {
232	>	Executors.newSingleThreadExecutor(),
233	>	Executors.newCachedThreadPool(),
234	>	Executors.newFixedThreadPool(2),
235	>	Executors.newScheduledThreadPool(2),
236	>	}) {
237	>	try {
238	>	Future future = executor.submit(sleeper);
239		try {
240	<	++iters;
241	<	sum = sum.add(it.next().call());
242	<	}
243	<	catch (TimeoutException success) {
244	<	assertTrue(iters > 0);
292	<	return;
240	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
241	>	shouldThrow();
242	>	} catch (TimeoutException success) {
243	>	} finally {
244	>	future.cancel(true);
245		}
246		}
247	<	// if by chance we didn't ever time out, total time must be small
248	<	long elapsed = System.currentTimeMillis() - startTime;
249	<	assertTrue(elapsed < N);
298	<	}
299	<	finally {
300	<	joinPool(executor);
247	>	finally {
248	>	joinPool(executor);
249	>	}
250		}
251		}
252
#	Line 308 | Line 257 | public class ExecutorsTest extends JSR16
257		*/
258		public void testDefaultThreadFactory() throws Exception {
259		final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
260	<	Runnable r = new Runnable() {
261	<	public void run() {
262	<	try {
263	<	Thread current = Thread.currentThread();
264	<	threadAssertTrue(!current.isDaemon());
265	<	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
266	<	ThreadGroup g = current.getThreadGroup();
267	<	SecurityManager s = System.getSecurityManager();
268	<	if (s != null)
269	<	threadAssertTrue(g == s.getThreadGroup());
270	<	else
271	<	threadAssertTrue(g == egroup);
272	<	String name = current.getName();
273	<	threadAssertTrue(name.endsWith("thread-1"));
274	<	} catch (SecurityException ok) {
275	<	// Also pass if not allowed to change setting
327	<	}
260	>	Runnable r = new CheckedRunnable() {
261	>	public void realRun() {
262	>	try {
263	>	Thread current = Thread.currentThread();
264	>	assertTrue(!current.isDaemon());
265	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
266	>	ThreadGroup g = current.getThreadGroup();
267	>	SecurityManager s = System.getSecurityManager();
268	>	if (s != null)
269	>	assertTrue(g == s.getThreadGroup());
270	>	else
271	>	assertTrue(g == egroup);
272	>	String name = current.getName();
273	>	assertTrue(name.endsWith("thread-1"));
274	>	} catch (SecurityException ok) {
275	>	// Also pass if not allowed to change setting
276		}
277	<	};
277	>	}};
278		ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
279
280		e.execute(r);
#	Line 348 | Line 296 | public class ExecutorsTest extends JSR16
296		* access control context and context class loader
297		*/
298		public void testPrivilegedThreadFactory() throws Exception {
299	<	Policy savedPolicy = null;
300	<	try {
301	<	savedPolicy = Policy.getPolicy();
302	<	AdjustablePolicy policy = new AdjustablePolicy();
303	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
304	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
305	<	Policy.setPolicy(policy);
306	<	} catch (AccessControlException ok) {
307	<	return;
308	<	}
309	<	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
310	<	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
311	<	final AccessControlContext thisacc = AccessController.getContext();
312	<	Runnable r = new Runnable() {
313	<	public void run() {
314	<	try {
315	<	Thread current = Thread.currentThread();
316	<	threadAssertTrue(!current.isDaemon());
317	<	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
318	<	ThreadGroup g = current.getThreadGroup();
319	<	SecurityManager s = System.getSecurityManager();
320	<	if (s != null)
321	<	threadAssertTrue(g == s.getThreadGroup());
322	<	else
323	<	threadAssertTrue(g == egroup);
324	<	String name = current.getName();
325	<	threadAssertTrue(name.endsWith("thread-1"));
326	<	threadAssertTrue(thisccl == current.getContextClassLoader());
327	<	threadAssertTrue(thisacc.equals(AccessController.getContext()));
328	<	} catch (SecurityException ok) {
329	<	// Also pass if not allowed to change settings
330	<	}
331	<	}
384	<	};
385	<	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
299	>	Runnable r = new CheckedRunnable() {
300	>	public void realRun() throws Exception {
301	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
302	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
303	>	final AccessControlContext thisacc = AccessController.getContext();
304	>	Runnable r = new CheckedRunnable() {
305	>	public void realRun() {
306	>	Thread current = Thread.currentThread();
307	>	assertTrue(!current.isDaemon());
308	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
309	>	ThreadGroup g = current.getThreadGroup();
310	>	SecurityManager s = System.getSecurityManager();
311	>	if (s != null)
312	>	assertTrue(g == s.getThreadGroup());
313	>	else
314	>	assertTrue(g == egroup);
315	>	String name = current.getName();
316	>	assertTrue(name.endsWith("thread-1"));
317	>	assertSame(thisccl, current.getContextClassLoader());
318	>	assertEquals(thisacc, AccessController.getContext());
319	>	}};
320	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
321	>	e.execute(r);
322	>	e.shutdown();
323	>	Thread.sleep(SHORT_DELAY_MS);
324	>	joinPool(e);
325	>	}};
326	>
327	>	runWithPermissions(r,
328	>	new RuntimePermission("getClassLoader"),
329	>	new RuntimePermission("setContextClassLoader"),
330	>	new RuntimePermission("modifyThread"));
331	>	}
332
333	<	Policy.setPolicy(savedPolicy);
334	<	e.execute(r);
335	<	try {
336	<	e.shutdown();
337	<	} catch (SecurityException ok) {
338	<	}
339	<	try {
340	<	Thread.sleep(SHORT_DELAY_MS);
341	<	} finally {
396	<	joinPool(e);
333	>	boolean haveCCLPermissions() {
334	>	SecurityManager sm = System.getSecurityManager();
335	>	if (sm != null) {
336	>	try {
337	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
338	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
339	>	} catch (AccessControlException e) {
340	>	return false;
341	>	}
342		}
343	<
343	>	return true;
344		}
345
346		void checkCCL() {
#	Line 419 | Line 364 | public class ExecutorsTest extends JSR16
364		* privilegedCallableUsingCurrentClassLoader throws ACE
365		*/
366		public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
367	<	Policy savedPolicy = null;
368	<	try {
369	<	savedPolicy = Policy.getPolicy();
370	<	AdjustablePolicy policy = new AdjustablePolicy();
371	<	Policy.setPolicy(policy);
372	<	} catch (AccessControlException ok) {
373	<	return;
374	<	}
375	<
431	<	// Check if program still has too many permissions to run test
432	<	try {
433	<	checkCCL();
434	<	// too many privileges to test; so return
435	<	Policy.setPolicy(savedPolicy);
436	<	return;
437	<	} catch (AccessControlException ok) {
438	<	}
367	>	Runnable r = new CheckedRunnable() {
368	>	public void realRun() throws Exception {
369	>	if (System.getSecurityManager() == null)
370	>	return;
371	>	try {
372	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
373	>	shouldThrow();
374	>	} catch (AccessControlException success) {}
375	>	}};
376
377	<	try {
441	<	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
442	<	shouldThrow();
443	<	} catch (AccessControlException success) {
444	<	} finally {
445	<	Policy.setPolicy(savedPolicy);
446	<	}
377	>	runWithoutPermissions(r);
378		}
379
380		/**
#	Line 451 | Line 382 | public class ExecutorsTest extends JSR16
382		* privilegedCallableUsingCurrentClassLoader does not throw ACE
383		*/
384		public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
385	<	Policy savedPolicy = null;
386	<	try {
387	<	savedPolicy = Policy.getPolicy();
388	<	AdjustablePolicy policy = new AdjustablePolicy();
389	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
390	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
391	<	Policy.setPolicy(policy);
392	<	} catch (AccessControlException ok) {
393	<	return;
394	<	}
464	<
465	<	try {
466	<	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
467	<	task.call();
468	<	}
469	<	finally {
470	<	Policy.setPolicy(savedPolicy);
471	<	}
385	>	Runnable r = new CheckedRunnable() {
386	>	public void realRun() throws Exception {
387	>	Executors.privilegedCallableUsingCurrentClassLoader
388	>	(new NoOpCallable())
389	>	.call();
390	>	}};
391	>
392	>	runWithPermissions(r,
393	>	new RuntimePermission("getClassLoader"),
394	>	new RuntimePermission("setContextClassLoader"));
395		}
396
397		/**
398		* Without permissions, calling privilegedCallable throws ACE
399		*/
400		public void testprivilegedCallableWithNoPrivs() throws Exception {
401	<	Callable task;
402	<	Policy savedPolicy = null;
480	<	AdjustablePolicy policy = null;
481	<	AccessControlContext noprivAcc = null;
482	<	try {
483	<	savedPolicy = Policy.getPolicy();
484	<	policy = new AdjustablePolicy();
485	<	Policy.setPolicy(policy);
486	<	noprivAcc = AccessController.getContext();
487	<	task = Executors.privilegedCallable(new CheckCCL());
488	<	Policy.setPolicy(savedPolicy);
489	<	} catch (AccessControlException ok) {
490	<	return; // program has too few permissions to set up test
491	<	}
401	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
402	>	Executors.privilegedCallable(new CheckCCL());
403
404	<	// Make sure that program doesn't have too many permissions
405	<	try {
406	<	AccessController.doPrivileged(new PrivilegedAction() {
407	<	public Object run() {
408	<	checkCCL();
409	<	return null;
410	<	}}, noprivAcc);
411	<	// too many permssions; skip test
412	<	return;
413	<	} catch (AccessControlException ok) {
414	<	}
415	<
416	<	try {
417	<	task.call();
418	<	shouldThrow();
419	<	} catch (AccessControlException success) {}
404	>	Runnable r = new CheckedRunnable() {
405	>	public void realRun() throws Exception {
406	>	if (System.getSecurityManager() == null)
407	>	return;
408	>	Callable task = Executors.privilegedCallable(new CheckCCL());
409	>	try {
410	>	task.call();
411	>	shouldThrow();
412	>	} catch (AccessControlException success) {}
413	>	}};
414	>
415	>	runWithoutPermissions(r);
416	>
417	>	// It seems rather difficult to test that the
418	>	// AccessControlContext of the privilegedCallable is used
419	>	// instead of its caller.  Below is a failed attempt to do
420	>	// that, which does not work because the AccessController
421	>	// cannot capture the internal state of the current Policy.
422	>	// It would be much more work to differentiate based on,
423	>	// e.g. CodeSource.
424	>
425	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
426	>	//         final Callable[] task = new Callable[1];
427	>
428	>	//         runWithPermissions
429	>	//             (new CheckedRunnable() {
430	>	//                 public void realRun() {
431	>	//                     if (System.getSecurityManager() == null)
432	>	//                         return;
433	>	//                     noprivAcc[0] = AccessController.getContext();
434	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
435	>	//                     try {
436	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
437	>	//                                                           public Void run() {
438	>	//                                                               checkCCL();
439	>	//                                                               return null;
440	>	//                                                           }}, noprivAcc[0]);
441	>	//                         shouldThrow();
442	>	//                     } catch (AccessControlException success) {}
443	>	//                 }});
444	>
445	>	//         runWithPermissions
446	>	//             (new CheckedRunnable() {
447	>	//                 public void realRun() throws Exception {
448	>	//                     if (System.getSecurityManager() == null)
449	>	//                         return;
450	>	//                     // Verify that we have an underprivileged ACC
451	>	//                     try {
452	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
453	>	//                                                           public Void run() {
454	>	//                                                               checkCCL();
455	>	//                                                               return null;
456	>	//                                                           }}, noprivAcc[0]);
457	>	//                         shouldThrow();
458	>	//                     } catch (AccessControlException success) {}
459	>
460	>	//                     try {
461	>	//                         task[0].call();
462	>	//                         shouldThrow();
463	>	//                     } catch (AccessControlException success) {}
464	>	//                 }},
465	>	//              new RuntimePermission("getClassLoader"),
466	>	//              new RuntimePermission("setContextClassLoader"));
467		}
468
469		/**
470		* With permissions, calling privilegedCallable succeeds
471		*/
472		public void testprivilegedCallableWithPrivs() throws Exception {
473	<	Policy savedPolicy = null;
474	<	try {
475	<	savedPolicy = Policy.getPolicy();
476	<	AdjustablePolicy policy = new AdjustablePolicy();
477	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
478	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
479	<	Policy.setPolicy(policy);
480	<	} catch (AccessControlException ok) {
523	<	return;
524	<	}
525	<
526	<	Callable task = Executors.privilegedCallable(new CheckCCL());
527	<	try {
528	<	task.call();
529	<	} finally {
530	<	Policy.setPolicy(savedPolicy);
531	<	}
473	>	Runnable r = new CheckedRunnable() {
474	>	public void realRun() throws Exception {
475	>	Executors.privilegedCallable(new CheckCCL()).call();
476	>	}};
477	>
478	>	runWithPermissions(r,
479	>	new RuntimePermission("getClassLoader"),
480	>	new RuntimePermission("setContextClassLoader"));
481		}
482
483		/**
#	Line 544 | Line 493 | public class ExecutorsTest extends JSR16
493		*/
494		public void testCallable2() throws Exception {
495		Callable c = Executors.callable(new NoOpRunnable(), one);
496	<	assertEquals(one, c.call());
496	>	assertSame(one, c.call());
497		}
498
499		/**
#	Line 553 | Line 502 | public class ExecutorsTest extends JSR16
502		public void testCallable3() throws Exception {
503		Callable c = Executors.callable(new PrivilegedAction() {
504		public Object run() { return one; }});
505	<	assertEquals(one, c.call());
505	>	assertSame(one, c.call());
506		}
507
508		/**
#	Line 562 | Line 511 | public class ExecutorsTest extends JSR16
511		public void testCallable4() throws Exception {
512		Callable c = Executors.callable(new PrivilegedExceptionAction() {
513		public Object run() { return one; }});
514	<	assertEquals(one, c.call());
514	>	assertSame(one, c.call());
515		}
516
517

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