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 |
5 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
* Pat Fisher, Mike Judd. |
7 |
*/ |
8 |
|
9 |
|
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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 AbstractExecutorServiceTest extends JSR166TestCase { |
18 |
public static void main(String[] args) { |
19 |
junit.textui.TestRunner.run(suite()); |
20 |
} |
21 |
public static Test suite() { |
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return new TestSuite(AbstractExecutorServiceTest.class); |
23 |
} |
24 |
|
25 |
/** |
26 |
* A no-frills implementation of AbstractExecutorService, designed |
27 |
* to test the submit methods only. |
28 |
*/ |
29 |
static class DirectExecutorService extends AbstractExecutorService { |
30 |
public void execute(Runnable r) { r.run(); } |
31 |
public void shutdown() { shutdown = true; } |
32 |
public List<Runnable> shutdownNow() { |
33 |
shutdown = true; |
34 |
return Collections.EMPTY_LIST; |
35 |
} |
36 |
public boolean isShutdown() { return shutdown; } |
37 |
public boolean isTerminated() { return isShutdown(); } |
38 |
public boolean awaitTermination(long timeout, TimeUnit unit) { |
39 |
return isShutdown(); |
40 |
} |
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private volatile boolean shutdown = false; |
42 |
} |
43 |
|
44 |
/** |
45 |
* execute(runnable) runs it to completion |
46 |
*/ |
47 |
public void testExecuteRunnable() throws Exception { |
48 |
ExecutorService e = new DirectExecutorService(); |
49 |
TrackedShortRunnable task = new TrackedShortRunnable(); |
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assertFalse(task.done); |
51 |
Future<?> future = e.submit(task); |
52 |
future.get(); |
53 |
assertTrue(task.done); |
54 |
} |
55 |
|
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|
57 |
/** |
58 |
* Completed submit(callable) returns result |
59 |
*/ |
60 |
public void testSubmitCallable() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
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Future<String> future = e.submit(new StringTask()); |
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String result = future.get(); |
64 |
assertSame(TEST_STRING, result); |
65 |
} |
66 |
|
67 |
/** |
68 |
* Completed submit(runnable) returns successfully |
69 |
*/ |
70 |
public void testSubmitRunnable() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
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Future<?> future = e.submit(new NoOpRunnable()); |
73 |
future.get(); |
74 |
assertTrue(future.isDone()); |
75 |
} |
76 |
|
77 |
/** |
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* Completed submit(runnable, result) returns result |
79 |
*/ |
80 |
public void testSubmitRunnable2() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
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Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
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String result = future.get(); |
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assertSame(TEST_STRING, result); |
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} |
86 |
|
87 |
|
88 |
/** |
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* A submitted privileged action runs to completion |
90 |
*/ |
91 |
public void testSubmitPrivilegedAction() throws Exception { |
92 |
Runnable r = new CheckedRunnable() { |
93 |
public void realRun() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
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Future future = e.submit(Executors.callable(new PrivilegedAction() { |
96 |
public Object run() { |
97 |
return TEST_STRING; |
98 |
}})); |
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|
100 |
assertSame(TEST_STRING, future.get()); |
101 |
}}; |
102 |
|
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runWithPermissions(r, |
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new RuntimePermission("getClassLoader"), |
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new RuntimePermission("setContextClassLoader"), |
106 |
new RuntimePermission("modifyThread")); |
107 |
} |
108 |
|
109 |
/** |
110 |
* A submitted privileged exception action runs to completion |
111 |
*/ |
112 |
public void testSubmitPrivilegedExceptionAction() throws Exception { |
113 |
Runnable r = new CheckedRunnable() { |
114 |
public void realRun() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
116 |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
117 |
public Object run() { |
118 |
return TEST_STRING; |
119 |
}})); |
120 |
|
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assertSame(TEST_STRING, future.get()); |
122 |
}}; |
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|
124 |
runWithPermissions(r); |
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} |
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|
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/** |
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* A submitted failed privileged exception action reports exception |
129 |
*/ |
130 |
public void testSubmitFailedPrivilegedExceptionAction() throws Exception { |
131 |
Runnable r = new CheckedRunnable() { |
132 |
public void realRun() throws Exception { |
133 |
ExecutorService e = new DirectExecutorService(); |
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Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
135 |
public Object run() throws Exception { |
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throw new IndexOutOfBoundsException(); |
137 |
}})); |
138 |
|
139 |
try { |
140 |
future.get(); |
141 |
shouldThrow(); |
142 |
} catch (ExecutionException success) { |
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assertTrue(success.getCause() instanceof IndexOutOfBoundsException); |
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}}}; |
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|
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runWithPermissions(r); |
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} |
148 |
|
149 |
/** |
150 |
* execute(null runnable) throws NPE |
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*/ |
152 |
public void testExecuteNullRunnable() { |
153 |
try { |
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ExecutorService e = new DirectExecutorService(); |
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e.submit((Runnable) null); |
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shouldThrow(); |
157 |
} catch (NullPointerException success) {} |
158 |
} |
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|
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|
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/** |
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* submit(null callable) throws NPE |
163 |
*/ |
164 |
public void testSubmitNullCallable() { |
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try { |
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ExecutorService e = new DirectExecutorService(); |
167 |
e.submit((Callable) null); |
168 |
shouldThrow(); |
169 |
} catch (NullPointerException success) {} |
170 |
} |
171 |
|
172 |
/** |
173 |
* submit(callable).get() throws InterruptedException if interrupted |
174 |
*/ |
175 |
public void testInterruptedSubmit() throws InterruptedException { |
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final CountDownLatch submitted = new CountDownLatch(1); |
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final CountDownLatch quittingTime = new CountDownLatch(1); |
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final ExecutorService p |
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= new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS, |
180 |
new ArrayBlockingQueue<Runnable>(10)); |
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final Callable<Void> awaiter = new CheckedCallable<Void>() { |
182 |
public Void realCall() throws InterruptedException { |
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quittingTime.await(); |
184 |
return null; |
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}}; |
186 |
try { |
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Thread t = new Thread(new CheckedInterruptedRunnable() { |
188 |
public void realRun() throws Exception { |
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Future<Void> future = p.submit(awaiter); |
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submitted.countDown(); |
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future.get(); |
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}}); |
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t.start(); |
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submitted.await(); |
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t.interrupt(); |
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t.join(); |
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} finally { |
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quittingTime.countDown(); |
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joinPool(p); |
200 |
} |
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} |
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|
203 |
/** |
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* get of submit(callable) throws ExecutionException if callable |
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* throws exception |
206 |
*/ |
207 |
public void testSubmitEE() throws InterruptedException { |
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ThreadPoolExecutor p = |
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new ThreadPoolExecutor(1, 1, |
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60, TimeUnit.SECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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|
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Callable c = new Callable() { |
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public Object call() { return 5/0; }}; |
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|
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try { |
217 |
p.submit(c).get(); |
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shouldThrow(); |
219 |
} catch (ExecutionException success) { |
220 |
assertTrue(success.getCause() instanceof ArithmeticException); |
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} |
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joinPool(p); |
223 |
} |
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|
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/** |
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* invokeAny(null) throws NPE |
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*/ |
228 |
public void testInvokeAny1() throws Exception { |
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ExecutorService e = new DirectExecutorService(); |
230 |
try { |
231 |
e.invokeAny(null); |
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shouldThrow(); |
233 |
} catch (NullPointerException success) { |
234 |
} finally { |
235 |
joinPool(e); |
236 |
} |
237 |
} |
238 |
|
239 |
/** |
240 |
* invokeAny(empty collection) throws IAE |
241 |
*/ |
242 |
public void testInvokeAny2() throws Exception { |
243 |
ExecutorService e = new DirectExecutorService(); |
244 |
try { |
245 |
e.invokeAny(new ArrayList<Callable<String>>()); |
246 |
shouldThrow(); |
247 |
} catch (IllegalArgumentException success) { |
248 |
} finally { |
249 |
joinPool(e); |
250 |
} |
251 |
} |
252 |
|
253 |
/** |
254 |
* invokeAny(c) throws NPE if c has null elements |
255 |
*/ |
256 |
public void testInvokeAny3() throws Exception { |
257 |
ExecutorService e = new DirectExecutorService(); |
258 |
List<Callable<Integer>> l = new ArrayList<Callable<Integer>>(); |
259 |
l.add(new Callable<Integer>() { |
260 |
public Integer call() { return 5/0; }}); |
261 |
l.add(null); |
262 |
try { |
263 |
e.invokeAny(l); |
264 |
shouldThrow(); |
265 |
} catch (NullPointerException success) { |
266 |
} finally { |
267 |
joinPool(e); |
268 |
} |
269 |
} |
270 |
|
271 |
/** |
272 |
* invokeAny(c) throws ExecutionException if no task in c completes |
273 |
*/ |
274 |
public void testInvokeAny4() throws InterruptedException { |
275 |
ExecutorService e = new DirectExecutorService(); |
276 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
277 |
l.add(new NPETask()); |
278 |
try { |
279 |
e.invokeAny(l); |
280 |
shouldThrow(); |
281 |
} catch (ExecutionException success) { |
282 |
assertTrue(success.getCause() instanceof NullPointerException); |
283 |
} finally { |
284 |
joinPool(e); |
285 |
} |
286 |
} |
287 |
|
288 |
/** |
289 |
* invokeAny(c) returns result of some task in c if at least one completes |
290 |
*/ |
291 |
public void testInvokeAny5() throws Exception { |
292 |
ExecutorService e = new DirectExecutorService(); |
293 |
try { |
294 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
295 |
l.add(new StringTask()); |
296 |
l.add(new StringTask()); |
297 |
String result = e.invokeAny(l); |
298 |
assertSame(TEST_STRING, result); |
299 |
} finally { |
300 |
joinPool(e); |
301 |
} |
302 |
} |
303 |
|
304 |
/** |
305 |
* invokeAll(null) throws NPE |
306 |
*/ |
307 |
public void testInvokeAll1() throws InterruptedException { |
308 |
ExecutorService e = new DirectExecutorService(); |
309 |
try { |
310 |
e.invokeAll(null); |
311 |
shouldThrow(); |
312 |
} catch (NullPointerException success) { |
313 |
} finally { |
314 |
joinPool(e); |
315 |
} |
316 |
} |
317 |
|
318 |
/** |
319 |
* invokeAll(empty collection) returns empty collection |
320 |
*/ |
321 |
public void testInvokeAll2() throws InterruptedException { |
322 |
ExecutorService e = new DirectExecutorService(); |
323 |
try { |
324 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
325 |
assertTrue(r.isEmpty()); |
326 |
} finally { |
327 |
joinPool(e); |
328 |
} |
329 |
} |
330 |
|
331 |
/** |
332 |
* invokeAll(c) throws NPE if c has null elements |
333 |
*/ |
334 |
public void testInvokeAll3() throws InterruptedException { |
335 |
ExecutorService e = new DirectExecutorService(); |
336 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
337 |
l.add(new StringTask()); |
338 |
l.add(null); |
339 |
try { |
340 |
e.invokeAll(l); |
341 |
shouldThrow(); |
342 |
} catch (NullPointerException success) { |
343 |
} finally { |
344 |
joinPool(e); |
345 |
} |
346 |
} |
347 |
|
348 |
/** |
349 |
* get of returned element of invokeAll(c) throws exception on failed task |
350 |
*/ |
351 |
public void testInvokeAll4() throws Exception { |
352 |
ExecutorService e = new DirectExecutorService(); |
353 |
try { |
354 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
355 |
l.add(new NPETask()); |
356 |
List<Future<String>> futures = e.invokeAll(l); |
357 |
assertEquals(1, futures.size()); |
358 |
try { |
359 |
futures.get(0).get(); |
360 |
shouldThrow(); |
361 |
} catch (ExecutionException success) { |
362 |
assertTrue(success.getCause() instanceof NullPointerException); |
363 |
} |
364 |
} finally { |
365 |
joinPool(e); |
366 |
} |
367 |
} |
368 |
|
369 |
/** |
370 |
* invokeAll(c) returns results of all completed tasks in c |
371 |
*/ |
372 |
public void testInvokeAll5() throws Exception { |
373 |
ExecutorService e = new DirectExecutorService(); |
374 |
try { |
375 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
376 |
l.add(new StringTask()); |
377 |
l.add(new StringTask()); |
378 |
List<Future<String>> futures = e.invokeAll(l); |
379 |
assertEquals(2, futures.size()); |
380 |
for (Future<String> future : futures) |
381 |
assertSame(TEST_STRING, future.get()); |
382 |
} finally { |
383 |
joinPool(e); |
384 |
} |
385 |
} |
386 |
|
387 |
|
388 |
/** |
389 |
* timed invokeAny(null) throws NPE |
390 |
*/ |
391 |
public void testTimedInvokeAny1() throws Exception { |
392 |
ExecutorService e = new DirectExecutorService(); |
393 |
try { |
394 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
395 |
shouldThrow(); |
396 |
} catch (NullPointerException success) { |
397 |
} finally { |
398 |
joinPool(e); |
399 |
} |
400 |
} |
401 |
|
402 |
/** |
403 |
* timed invokeAny(null time unit) throws NPE |
404 |
*/ |
405 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
406 |
ExecutorService e = new DirectExecutorService(); |
407 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
408 |
l.add(new StringTask()); |
409 |
try { |
410 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
411 |
shouldThrow(); |
412 |
} catch (NullPointerException success) { |
413 |
} finally { |
414 |
joinPool(e); |
415 |
} |
416 |
} |
417 |
|
418 |
/** |
419 |
* timed invokeAny(empty collection) throws IAE |
420 |
*/ |
421 |
public void testTimedInvokeAny2() throws Exception { |
422 |
ExecutorService e = new DirectExecutorService(); |
423 |
try { |
424 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
425 |
shouldThrow(); |
426 |
} catch (IllegalArgumentException success) { |
427 |
} finally { |
428 |
joinPool(e); |
429 |
} |
430 |
} |
431 |
|
432 |
/** |
433 |
* timed invokeAny(c) throws NPE if c has null elements |
434 |
*/ |
435 |
public void testTimedInvokeAny3() throws Exception { |
436 |
ExecutorService e = new DirectExecutorService(); |
437 |
List<Callable<Integer>> l = new ArrayList<Callable<Integer>>(); |
438 |
l.add(new Callable<Integer>() { |
439 |
public Integer call() { return 5/0; }}); |
440 |
l.add(null); |
441 |
try { |
442 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
443 |
shouldThrow(); |
444 |
} catch (NullPointerException success) { |
445 |
} finally { |
446 |
joinPool(e); |
447 |
} |
448 |
} |
449 |
|
450 |
/** |
451 |
* timed invokeAny(c) throws ExecutionException if no task completes |
452 |
*/ |
453 |
public void testTimedInvokeAny4() throws Exception { |
454 |
ExecutorService e = new DirectExecutorService(); |
455 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
456 |
l.add(new NPETask()); |
457 |
try { |
458 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
459 |
shouldThrow(); |
460 |
} catch (ExecutionException success) { |
461 |
assertTrue(success.getCause() instanceof NullPointerException); |
462 |
} finally { |
463 |
joinPool(e); |
464 |
} |
465 |
} |
466 |
|
467 |
/** |
468 |
* timed invokeAny(c) returns result of some task in c |
469 |
*/ |
470 |
public void testTimedInvokeAny5() throws Exception { |
471 |
ExecutorService e = new DirectExecutorService(); |
472 |
try { |
473 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
474 |
l.add(new StringTask()); |
475 |
l.add(new StringTask()); |
476 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
477 |
assertSame(TEST_STRING, result); |
478 |
} finally { |
479 |
joinPool(e); |
480 |
} |
481 |
} |
482 |
|
483 |
/** |
484 |
* timed invokeAll(null) throws NPE |
485 |
*/ |
486 |
public void testTimedInvokeAll1() throws InterruptedException { |
487 |
ExecutorService e = new DirectExecutorService(); |
488 |
try { |
489 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
490 |
shouldThrow(); |
491 |
} catch (NullPointerException success) { |
492 |
} finally { |
493 |
joinPool(e); |
494 |
} |
495 |
} |
496 |
|
497 |
/** |
498 |
* timed invokeAll(null time unit) throws NPE |
499 |
*/ |
500 |
public void testTimedInvokeAllNullTimeUnit() throws InterruptedException { |
501 |
ExecutorService e = new DirectExecutorService(); |
502 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
503 |
l.add(new StringTask()); |
504 |
try { |
505 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
506 |
shouldThrow(); |
507 |
} catch (NullPointerException success) { |
508 |
} finally { |
509 |
joinPool(e); |
510 |
} |
511 |
} |
512 |
|
513 |
/** |
514 |
* timed invokeAll(empty collection) returns empty collection |
515 |
*/ |
516 |
public void testTimedInvokeAll2() throws InterruptedException { |
517 |
ExecutorService e = new DirectExecutorService(); |
518 |
try { |
519 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
520 |
assertTrue(r.isEmpty()); |
521 |
} finally { |
522 |
joinPool(e); |
523 |
} |
524 |
} |
525 |
|
526 |
/** |
527 |
* timed invokeAll(c) throws NPE if c has null elements |
528 |
*/ |
529 |
public void testTimedInvokeAll3() throws InterruptedException { |
530 |
ExecutorService e = new DirectExecutorService(); |
531 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
532 |
l.add(new StringTask()); |
533 |
l.add(null); |
534 |
try { |
535 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
536 |
shouldThrow(); |
537 |
} catch (NullPointerException success) { |
538 |
} finally { |
539 |
joinPool(e); |
540 |
} |
541 |
} |
542 |
|
543 |
/** |
544 |
* get of returned element of invokeAll(c) throws exception on failed task |
545 |
*/ |
546 |
public void testTimedInvokeAll4() throws Exception { |
547 |
ExecutorService e = new DirectExecutorService(); |
548 |
try { |
549 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
550 |
l.add(new NPETask()); |
551 |
List<Future<String>> futures = |
552 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
553 |
assertEquals(1, futures.size()); |
554 |
try { |
555 |
futures.get(0).get(); |
556 |
shouldThrow(); |
557 |
} catch (ExecutionException success) { |
558 |
assertTrue(success.getCause() instanceof NullPointerException); |
559 |
} |
560 |
} finally { |
561 |
joinPool(e); |
562 |
} |
563 |
} |
564 |
|
565 |
/** |
566 |
* timed invokeAll(c) returns results of all completed tasks in c |
567 |
*/ |
568 |
public void testTimedInvokeAll5() throws Exception { |
569 |
ExecutorService e = new DirectExecutorService(); |
570 |
try { |
571 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
572 |
l.add(new StringTask()); |
573 |
l.add(new StringTask()); |
574 |
List<Future<String>> futures = |
575 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
576 |
assertEquals(2, futures.size()); |
577 |
for (Future<String> future : futures) |
578 |
assertSame(TEST_STRING, future.get()); |
579 |
} finally { |
580 |
joinPool(e); |
581 |
} |
582 |
} |
583 |
|
584 |
/** |
585 |
* timed invokeAll cancels tasks not completed by timeout |
586 |
*/ |
587 |
public void testTimedInvokeAll6() throws InterruptedException { |
588 |
ExecutorService e = new DirectExecutorService(); |
589 |
try { |
590 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
591 |
l.add(new StringTask()); |
592 |
l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
593 |
l.add(new StringTask()); |
594 |
List<Future<String>> futures = |
595 |
e.invokeAll(l, SMALL_DELAY_MS, MILLISECONDS); |
596 |
assertEquals(3, futures.size()); |
597 |
Iterator<Future<String>> it = futures.iterator(); |
598 |
Future<String> f1 = it.next(); |
599 |
Future<String> f2 = it.next(); |
600 |
Future<String> f3 = it.next(); |
601 |
assertTrue(f1.isDone()); |
602 |
assertFalse(f1.isCancelled()); |
603 |
assertTrue(f2.isDone()); |
604 |
assertTrue(f3.isDone()); |
605 |
assertTrue(f3.isCancelled()); |
606 |
} finally { |
607 |
joinPool(e); |
608 |
} |
609 |
} |
610 |
|
611 |
} |