Calin Juravle | 8f0d92b | 2013-08-01 17:26:00 +0100 | [diff] [blame] | 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/publicdomain/zero/1.0/ |
| 5 | */ |
| 6 | |
| 7 | package jsr166; |
| 8 | |
| 9 | import junit.framework.*; |
| 10 | import java.util.*; |
| 11 | import java.util.concurrent.*; |
| 12 | import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| 13 | import java.util.concurrent.atomic.AtomicInteger; |
| 14 | |
| 15 | public class ScheduledExecutorSubclassTest extends JSR166TestCase { |
| 16 | |
| 17 | static class CustomTask<V> implements RunnableScheduledFuture<V> { |
| 18 | RunnableScheduledFuture<V> task; |
| 19 | volatile boolean ran; |
| 20 | CustomTask(RunnableScheduledFuture<V> t) { task = t; } |
| 21 | public boolean isPeriodic() { return task.isPeriodic(); } |
| 22 | public void run() { |
| 23 | ran = true; |
| 24 | task.run(); |
| 25 | } |
| 26 | public long getDelay(TimeUnit unit) { return task.getDelay(unit); } |
| 27 | public int compareTo(Delayed t) { |
| 28 | return task.compareTo(((CustomTask)t).task); |
| 29 | } |
| 30 | public boolean cancel(boolean mayInterruptIfRunning) { |
| 31 | return task.cancel(mayInterruptIfRunning); |
| 32 | } |
| 33 | public boolean isCancelled() { return task.isCancelled(); } |
| 34 | public boolean isDone() { return task.isDone(); } |
| 35 | public V get() throws InterruptedException, ExecutionException { |
| 36 | V v = task.get(); |
| 37 | assertTrue(ran); |
| 38 | return v; |
| 39 | } |
| 40 | public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { |
| 41 | V v = task.get(time, unit); |
| 42 | assertTrue(ran); |
| 43 | return v; |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | public class CustomExecutor extends ScheduledThreadPoolExecutor { |
| 48 | |
| 49 | protected <V> RunnableScheduledFuture<V> decorateTask(Runnable r, RunnableScheduledFuture<V> task) { |
| 50 | return new CustomTask<V>(task); |
| 51 | } |
| 52 | |
| 53 | protected <V> RunnableScheduledFuture<V> decorateTask(Callable<V> c, RunnableScheduledFuture<V> task) { |
| 54 | return new CustomTask<V>(task); |
| 55 | } |
| 56 | CustomExecutor(int corePoolSize) { super(corePoolSize); } |
| 57 | CustomExecutor(int corePoolSize, RejectedExecutionHandler handler) { |
| 58 | super(corePoolSize, handler); |
| 59 | } |
| 60 | |
| 61 | CustomExecutor(int corePoolSize, ThreadFactory threadFactory) { |
| 62 | super(corePoolSize, threadFactory); |
| 63 | } |
| 64 | CustomExecutor(int corePoolSize, ThreadFactory threadFactory, |
| 65 | RejectedExecutionHandler handler) { |
| 66 | super(corePoolSize, threadFactory, handler); |
| 67 | } |
| 68 | |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * execute successfully executes a runnable |
| 73 | */ |
| 74 | public void testExecute() throws InterruptedException { |
| 75 | CustomExecutor p = new CustomExecutor(1); |
| 76 | final CountDownLatch done = new CountDownLatch(1); |
| 77 | final Runnable task = new CheckedRunnable() { |
| 78 | public void realRun() { |
| 79 | done.countDown(); |
| 80 | }}; |
| 81 | try { |
| 82 | p.execute(task); |
| 83 | assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 84 | } finally { |
| 85 | joinPool(p); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * delayed schedule of callable successfully executes after delay |
| 91 | */ |
| 92 | public void testSchedule1() throws Exception { |
| 93 | CustomExecutor p = new CustomExecutor(1); |
| 94 | final long startTime = System.nanoTime(); |
| 95 | final CountDownLatch done = new CountDownLatch(1); |
| 96 | try { |
| 97 | Callable task = new CheckedCallable<Boolean>() { |
| 98 | public Boolean realCall() { |
| 99 | done.countDown(); |
| 100 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 101 | return Boolean.TRUE; |
| 102 | }}; |
| 103 | Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
| 104 | assertSame(Boolean.TRUE, f.get()); |
| 105 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 106 | assertTrue(done.await(0L, MILLISECONDS)); |
| 107 | } finally { |
| 108 | joinPool(p); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * delayed schedule of runnable successfully executes after delay |
| 114 | */ |
| 115 | public void testSchedule3() throws Exception { |
| 116 | CustomExecutor p = new CustomExecutor(1); |
| 117 | final long startTime = System.nanoTime(); |
| 118 | final CountDownLatch done = new CountDownLatch(1); |
| 119 | try { |
| 120 | Runnable task = new CheckedRunnable() { |
| 121 | public void realRun() { |
| 122 | done.countDown(); |
| 123 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 124 | }}; |
| 125 | Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
| 126 | await(done); |
| 127 | assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
| 128 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 129 | } finally { |
| 130 | joinPool(p); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * scheduleAtFixedRate executes runnable after given initial delay |
| 136 | */ |
| 137 | public void testSchedule4() throws InterruptedException { |
| 138 | CustomExecutor p = new CustomExecutor(1); |
| 139 | final long startTime = System.nanoTime(); |
| 140 | final CountDownLatch done = new CountDownLatch(1); |
| 141 | try { |
| 142 | Runnable task = new CheckedRunnable() { |
| 143 | public void realRun() { |
| 144 | done.countDown(); |
| 145 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 146 | }}; |
| 147 | ScheduledFuture f = |
| 148 | p.scheduleAtFixedRate(task, timeoutMillis(), |
| 149 | LONG_DELAY_MS, MILLISECONDS); |
| 150 | await(done); |
| 151 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 152 | f.cancel(true); |
| 153 | } finally { |
| 154 | joinPool(p); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * scheduleWithFixedDelay executes runnable after given initial delay |
| 160 | */ |
| 161 | public void testSchedule5() throws InterruptedException { |
| 162 | CustomExecutor p = new CustomExecutor(1); |
| 163 | final long startTime = System.nanoTime(); |
| 164 | final CountDownLatch done = new CountDownLatch(1); |
| 165 | try { |
| 166 | Runnable task = new CheckedRunnable() { |
| 167 | public void realRun() { |
| 168 | done.countDown(); |
| 169 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 170 | }}; |
| 171 | ScheduledFuture f = |
| 172 | p.scheduleWithFixedDelay(task, timeoutMillis(), |
| 173 | LONG_DELAY_MS, MILLISECONDS); |
| 174 | await(done); |
| 175 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
| 176 | f.cancel(true); |
| 177 | } finally { |
| 178 | joinPool(p); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | static class RunnableCounter implements Runnable { |
| 183 | AtomicInteger count = new AtomicInteger(0); |
| 184 | public void run() { count.getAndIncrement(); } |
| 185 | } |
| 186 | |
| 187 | /** |
| 188 | * scheduleAtFixedRate executes series of tasks at given rate |
| 189 | */ |
| 190 | public void testFixedRateSequence() throws InterruptedException { |
| 191 | CustomExecutor p = new CustomExecutor(1); |
| 192 | RunnableCounter counter = new RunnableCounter(); |
| 193 | ScheduledFuture h = |
| 194 | p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS); |
| 195 | delay(SMALL_DELAY_MS); |
| 196 | h.cancel(true); |
| 197 | int c = counter.count.get(); |
| 198 | // By time scaling conventions, we must have at least |
| 199 | // an execution per SHORT delay, but no more than one SHORT more |
| 200 | assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
| 201 | assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
| 202 | joinPool(p); |
| 203 | } |
| 204 | |
| 205 | /** |
| 206 | * scheduleWithFixedDelay executes series of tasks with given period |
| 207 | */ |
| 208 | public void testFixedDelaySequence() throws InterruptedException { |
| 209 | CustomExecutor p = new CustomExecutor(1); |
| 210 | RunnableCounter counter = new RunnableCounter(); |
| 211 | ScheduledFuture h = |
| 212 | p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS); |
| 213 | delay(SMALL_DELAY_MS); |
| 214 | h.cancel(true); |
| 215 | int c = counter.count.get(); |
| 216 | assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
| 217 | assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
| 218 | joinPool(p); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * execute(null) throws NPE |
| 223 | */ |
| 224 | public void testExecuteNull() throws InterruptedException { |
| 225 | CustomExecutor se = new CustomExecutor(1); |
| 226 | try { |
| 227 | se.execute(null); |
| 228 | shouldThrow(); |
| 229 | } catch (NullPointerException success) {} |
| 230 | joinPool(se); |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * schedule(null) throws NPE |
| 235 | */ |
| 236 | public void testScheduleNull() throws InterruptedException { |
| 237 | CustomExecutor se = new CustomExecutor(1); |
| 238 | try { |
| 239 | TrackedCallable callable = null; |
| 240 | Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
| 241 | shouldThrow(); |
| 242 | } catch (NullPointerException success) {} |
| 243 | joinPool(se); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * execute throws RejectedExecutionException if shutdown |
| 248 | */ |
| 249 | public void testSchedule1_RejectedExecutionException() { |
| 250 | CustomExecutor se = new CustomExecutor(1); |
| 251 | try { |
| 252 | se.shutdown(); |
| 253 | se.schedule(new NoOpRunnable(), |
| 254 | MEDIUM_DELAY_MS, MILLISECONDS); |
| 255 | shouldThrow(); |
| 256 | } catch (RejectedExecutionException success) { |
| 257 | } catch (SecurityException ok) { |
| 258 | } |
| 259 | |
| 260 | joinPool(se); |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * schedule throws RejectedExecutionException if shutdown |
| 265 | */ |
| 266 | public void testSchedule2_RejectedExecutionException() { |
| 267 | CustomExecutor se = new CustomExecutor(1); |
| 268 | try { |
| 269 | se.shutdown(); |
| 270 | se.schedule(new NoOpCallable(), |
| 271 | MEDIUM_DELAY_MS, MILLISECONDS); |
| 272 | shouldThrow(); |
| 273 | } catch (RejectedExecutionException success) { |
| 274 | } catch (SecurityException ok) { |
| 275 | } |
| 276 | joinPool(se); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * schedule callable throws RejectedExecutionException if shutdown |
| 281 | */ |
| 282 | public void testSchedule3_RejectedExecutionException() { |
| 283 | CustomExecutor se = new CustomExecutor(1); |
| 284 | try { |
| 285 | se.shutdown(); |
| 286 | se.schedule(new NoOpCallable(), |
| 287 | MEDIUM_DELAY_MS, MILLISECONDS); |
| 288 | shouldThrow(); |
| 289 | } catch (RejectedExecutionException success) { |
| 290 | } catch (SecurityException ok) { |
| 291 | } |
| 292 | joinPool(se); |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * scheduleAtFixedRate throws RejectedExecutionException if shutdown |
| 297 | */ |
| 298 | public void testScheduleAtFixedRate1_RejectedExecutionException() { |
| 299 | CustomExecutor se = new CustomExecutor(1); |
| 300 | try { |
| 301 | se.shutdown(); |
| 302 | se.scheduleAtFixedRate(new NoOpRunnable(), |
| 303 | MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
| 304 | shouldThrow(); |
| 305 | } catch (RejectedExecutionException success) { |
| 306 | } catch (SecurityException ok) { |
| 307 | } |
| 308 | joinPool(se); |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
| 313 | */ |
| 314 | public void testScheduleWithFixedDelay1_RejectedExecutionException() { |
| 315 | CustomExecutor se = new CustomExecutor(1); |
| 316 | try { |
| 317 | se.shutdown(); |
| 318 | se.scheduleWithFixedDelay(new NoOpRunnable(), |
| 319 | MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
| 320 | shouldThrow(); |
| 321 | } catch (RejectedExecutionException success) { |
| 322 | } catch (SecurityException ok) { |
| 323 | } |
| 324 | joinPool(se); |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * getActiveCount increases but doesn't overestimate, when a |
| 329 | * thread becomes active |
| 330 | */ |
| 331 | public void testGetActiveCount() throws InterruptedException { |
| 332 | final ThreadPoolExecutor p = new CustomExecutor(2); |
| 333 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 334 | final CountDownLatch done = new CountDownLatch(1); |
| 335 | try { |
| 336 | assertEquals(0, p.getActiveCount()); |
| 337 | p.execute(new CheckedRunnable() { |
| 338 | public void realRun() throws InterruptedException { |
| 339 | threadStarted.countDown(); |
| 340 | assertEquals(1, p.getActiveCount()); |
| 341 | done.await(); |
| 342 | }}); |
| 343 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 344 | assertEquals(1, p.getActiveCount()); |
| 345 | } finally { |
| 346 | done.countDown(); |
| 347 | joinPool(p); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * getCompletedTaskCount increases, but doesn't overestimate, |
| 353 | * when tasks complete |
| 354 | */ |
| 355 | public void testGetCompletedTaskCount() throws InterruptedException { |
| 356 | final ThreadPoolExecutor p = new CustomExecutor(2); |
| 357 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 358 | final CountDownLatch threadProceed = new CountDownLatch(1); |
| 359 | final CountDownLatch threadDone = new CountDownLatch(1); |
| 360 | try { |
| 361 | assertEquals(0, p.getCompletedTaskCount()); |
| 362 | p.execute(new CheckedRunnable() { |
| 363 | public void realRun() throws InterruptedException { |
| 364 | threadStarted.countDown(); |
| 365 | assertEquals(0, p.getCompletedTaskCount()); |
| 366 | threadProceed.await(); |
| 367 | threadDone.countDown(); |
| 368 | }}); |
| 369 | await(threadStarted); |
| 370 | assertEquals(0, p.getCompletedTaskCount()); |
| 371 | threadProceed.countDown(); |
| 372 | threadDone.await(); |
| 373 | long startTime = System.nanoTime(); |
| 374 | while (p.getCompletedTaskCount() != 1) { |
| 375 | if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
| 376 | fail("timed out"); |
| 377 | Thread.yield(); |
| 378 | } |
| 379 | } finally { |
| 380 | joinPool(p); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * getCorePoolSize returns size given in constructor if not otherwise set |
| 386 | */ |
| 387 | public void testGetCorePoolSize() { |
| 388 | CustomExecutor p = new CustomExecutor(1); |
| 389 | assertEquals(1, p.getCorePoolSize()); |
| 390 | joinPool(p); |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * getLargestPoolSize increases, but doesn't overestimate, when |
| 395 | * multiple threads active |
| 396 | */ |
| 397 | public void testGetLargestPoolSize() throws InterruptedException { |
| 398 | final int THREADS = 3; |
| 399 | final ThreadPoolExecutor p = new CustomExecutor(THREADS); |
| 400 | final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
| 401 | final CountDownLatch done = new CountDownLatch(1); |
| 402 | try { |
| 403 | assertEquals(0, p.getLargestPoolSize()); |
| 404 | for (int i = 0; i < THREADS; i++) |
| 405 | p.execute(new CheckedRunnable() { |
| 406 | public void realRun() throws InterruptedException { |
| 407 | threadsStarted.countDown(); |
| 408 | done.await(); |
| 409 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 410 | }}); |
| 411 | assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 412 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 413 | } finally { |
| 414 | done.countDown(); |
| 415 | joinPool(p); |
| 416 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | /** |
| 421 | * getPoolSize increases, but doesn't overestimate, when threads |
| 422 | * become active |
| 423 | */ |
| 424 | public void testGetPoolSize() throws InterruptedException { |
| 425 | final ThreadPoolExecutor p = new CustomExecutor(1); |
| 426 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 427 | final CountDownLatch done = new CountDownLatch(1); |
| 428 | try { |
| 429 | assertEquals(0, p.getPoolSize()); |
| 430 | p.execute(new CheckedRunnable() { |
| 431 | public void realRun() throws InterruptedException { |
| 432 | threadStarted.countDown(); |
| 433 | assertEquals(1, p.getPoolSize()); |
| 434 | done.await(); |
| 435 | }}); |
| 436 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 437 | assertEquals(1, p.getPoolSize()); |
| 438 | } finally { |
| 439 | done.countDown(); |
| 440 | joinPool(p); |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * getTaskCount increases, but doesn't overestimate, when tasks |
| 446 | * submitted |
| 447 | */ |
| 448 | public void testGetTaskCount() throws InterruptedException { |
| 449 | final ThreadPoolExecutor p = new CustomExecutor(1); |
| 450 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 451 | final CountDownLatch done = new CountDownLatch(1); |
| 452 | final int TASKS = 5; |
| 453 | try { |
| 454 | assertEquals(0, p.getTaskCount()); |
| 455 | for (int i = 0; i < TASKS; i++) |
| 456 | p.execute(new CheckedRunnable() { |
| 457 | public void realRun() throws InterruptedException { |
| 458 | threadStarted.countDown(); |
| 459 | done.await(); |
| 460 | }}); |
| 461 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 462 | assertEquals(TASKS, p.getTaskCount()); |
| 463 | } finally { |
| 464 | done.countDown(); |
| 465 | joinPool(p); |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | /** |
| 470 | * getThreadFactory returns factory in constructor if not set |
| 471 | */ |
| 472 | public void testGetThreadFactory() { |
| 473 | ThreadFactory tf = new SimpleThreadFactory(); |
| 474 | CustomExecutor p = new CustomExecutor(1, tf); |
| 475 | assertSame(tf, p.getThreadFactory()); |
| 476 | joinPool(p); |
| 477 | } |
| 478 | |
| 479 | /** |
| 480 | * setThreadFactory sets the thread factory returned by getThreadFactory |
| 481 | */ |
| 482 | public void testSetThreadFactory() { |
| 483 | ThreadFactory tf = new SimpleThreadFactory(); |
| 484 | CustomExecutor p = new CustomExecutor(1); |
| 485 | p.setThreadFactory(tf); |
| 486 | assertSame(tf, p.getThreadFactory()); |
| 487 | joinPool(p); |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * setThreadFactory(null) throws NPE |
| 492 | */ |
| 493 | public void testSetThreadFactoryNull() { |
| 494 | CustomExecutor p = new CustomExecutor(1); |
| 495 | try { |
| 496 | p.setThreadFactory(null); |
| 497 | shouldThrow(); |
| 498 | } catch (NullPointerException success) { |
| 499 | } finally { |
| 500 | joinPool(p); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * isShutdown is false before shutdown, true after |
| 506 | */ |
| 507 | public void testIsShutdown() { |
| 508 | CustomExecutor p = new CustomExecutor(1); |
| 509 | try { |
| 510 | assertFalse(p.isShutdown()); |
| 511 | } |
| 512 | finally { |
| 513 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 514 | } |
| 515 | assertTrue(p.isShutdown()); |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * isTerminated is false before termination, true after |
| 520 | */ |
| 521 | public void testIsTerminated() throws InterruptedException { |
| 522 | final ThreadPoolExecutor p = new CustomExecutor(1); |
| 523 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 524 | final CountDownLatch done = new CountDownLatch(1); |
| 525 | assertFalse(p.isTerminated()); |
| 526 | try { |
| 527 | p.execute(new CheckedRunnable() { |
| 528 | public void realRun() throws InterruptedException { |
| 529 | assertFalse(p.isTerminated()); |
| 530 | threadStarted.countDown(); |
| 531 | done.await(); |
| 532 | }}); |
| 533 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 534 | assertFalse(p.isTerminating()); |
| 535 | done.countDown(); |
| 536 | } finally { |
| 537 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 538 | } |
| 539 | assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 540 | assertTrue(p.isTerminated()); |
| 541 | } |
| 542 | |
| 543 | /** |
| 544 | * isTerminating is not true when running or when terminated |
| 545 | */ |
| 546 | public void testIsTerminating() throws InterruptedException { |
| 547 | final ThreadPoolExecutor p = new CustomExecutor(1); |
| 548 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 549 | final CountDownLatch done = new CountDownLatch(1); |
| 550 | try { |
| 551 | assertFalse(p.isTerminating()); |
| 552 | p.execute(new CheckedRunnable() { |
| 553 | public void realRun() throws InterruptedException { |
| 554 | assertFalse(p.isTerminating()); |
| 555 | threadStarted.countDown(); |
| 556 | done.await(); |
| 557 | }}); |
| 558 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 559 | assertFalse(p.isTerminating()); |
| 560 | done.countDown(); |
| 561 | } finally { |
| 562 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 563 | } |
| 564 | assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 565 | assertTrue(p.isTerminated()); |
| 566 | assertFalse(p.isTerminating()); |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * getQueue returns the work queue, which contains queued tasks |
| 571 | */ |
| 572 | public void testGetQueue() throws InterruptedException { |
| 573 | ScheduledThreadPoolExecutor p = new CustomExecutor(1); |
| 574 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 575 | final CountDownLatch done = new CountDownLatch(1); |
| 576 | try { |
| 577 | ScheduledFuture[] tasks = new ScheduledFuture[5]; |
| 578 | for (int i = 0; i < tasks.length; i++) { |
| 579 | Runnable r = new CheckedRunnable() { |
| 580 | public void realRun() throws InterruptedException { |
| 581 | threadStarted.countDown(); |
| 582 | done.await(); |
| 583 | }}; |
| 584 | tasks[i] = p.schedule(r, 1, MILLISECONDS); |
| 585 | } |
| 586 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 587 | BlockingQueue<Runnable> q = p.getQueue(); |
| 588 | assertTrue(q.contains(tasks[tasks.length - 1])); |
| 589 | assertFalse(q.contains(tasks[0])); |
| 590 | } finally { |
| 591 | done.countDown(); |
| 592 | joinPool(p); |
| 593 | } |
| 594 | } |
| 595 | |
| 596 | /** |
| 597 | * remove(task) removes queued task, and fails to remove active task |
| 598 | */ |
| 599 | public void testRemove() throws InterruptedException { |
| 600 | final ScheduledThreadPoolExecutor p = new CustomExecutor(1); |
| 601 | ScheduledFuture[] tasks = new ScheduledFuture[5]; |
| 602 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 603 | final CountDownLatch done = new CountDownLatch(1); |
| 604 | try { |
| 605 | for (int i = 0; i < tasks.length; i++) { |
| 606 | Runnable r = new CheckedRunnable() { |
| 607 | public void realRun() throws InterruptedException { |
| 608 | threadStarted.countDown(); |
| 609 | done.await(); |
| 610 | }}; |
| 611 | tasks[i] = p.schedule(r, 1, MILLISECONDS); |
| 612 | } |
| 613 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 614 | BlockingQueue<Runnable> q = p.getQueue(); |
| 615 | assertFalse(p.remove((Runnable)tasks[0])); |
| 616 | assertTrue(q.contains((Runnable)tasks[4])); |
| 617 | assertTrue(q.contains((Runnable)tasks[3])); |
| 618 | assertTrue(p.remove((Runnable)tasks[4])); |
| 619 | assertFalse(p.remove((Runnable)tasks[4])); |
| 620 | assertFalse(q.contains((Runnable)tasks[4])); |
| 621 | assertTrue(q.contains((Runnable)tasks[3])); |
| 622 | assertTrue(p.remove((Runnable)tasks[3])); |
| 623 | assertFalse(q.contains((Runnable)tasks[3])); |
| 624 | } finally { |
| 625 | done.countDown(); |
| 626 | joinPool(p); |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * purge removes cancelled tasks from the queue |
| 632 | */ |
| 633 | public void testPurge() throws InterruptedException { |
| 634 | CustomExecutor p = new CustomExecutor(1); |
| 635 | ScheduledFuture[] tasks = new ScheduledFuture[5]; |
| 636 | for (int i = 0; i < tasks.length; i++) |
| 637 | tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
| 638 | LONG_DELAY_MS, MILLISECONDS); |
| 639 | try { |
| 640 | int max = tasks.length; |
| 641 | if (tasks[4].cancel(true)) --max; |
| 642 | if (tasks[3].cancel(true)) --max; |
| 643 | // There must eventually be an interference-free point at |
| 644 | // which purge will not fail. (At worst, when queue is empty.) |
| 645 | long startTime = System.nanoTime(); |
| 646 | do { |
| 647 | p.purge(); |
| 648 | long count = p.getTaskCount(); |
| 649 | if (count == max) |
| 650 | return; |
| 651 | } while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
| 652 | fail("Purge failed to remove cancelled tasks"); |
| 653 | } finally { |
| 654 | for (ScheduledFuture task : tasks) |
| 655 | task.cancel(true); |
| 656 | joinPool(p); |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | /** |
| 661 | * shutdownNow returns a list containing tasks that were not run |
| 662 | */ |
| 663 | public void testShutdownNow() { |
| 664 | CustomExecutor p = new CustomExecutor(1); |
| 665 | for (int i = 0; i < 5; i++) |
| 666 | p.schedule(new SmallPossiblyInterruptedRunnable(), |
| 667 | LONG_DELAY_MS, MILLISECONDS); |
| 668 | try { |
| 669 | List<Runnable> l = p.shutdownNow(); |
| 670 | assertTrue(p.isShutdown()); |
| 671 | assertEquals(5, l.size()); |
| 672 | } catch (SecurityException ok) { |
| 673 | // Allowed in case test doesn't have privs |
| 674 | } finally { |
| 675 | joinPool(p); |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | /** |
| 680 | * In default setting, shutdown cancels periodic but not delayed |
| 681 | * tasks at shutdown |
| 682 | */ |
| 683 | public void testShutdown1() throws InterruptedException { |
| 684 | CustomExecutor p = new CustomExecutor(1); |
| 685 | assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
| 686 | assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
| 687 | |
| 688 | ScheduledFuture[] tasks = new ScheduledFuture[5]; |
| 689 | for (int i = 0; i < tasks.length; i++) |
| 690 | tasks[i] = p.schedule(new NoOpRunnable(), |
| 691 | SHORT_DELAY_MS, MILLISECONDS); |
| 692 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 693 | BlockingQueue<Runnable> q = p.getQueue(); |
| 694 | for (ScheduledFuture task : tasks) { |
| 695 | assertFalse(task.isDone()); |
| 696 | assertFalse(task.isCancelled()); |
| 697 | assertTrue(q.contains(task)); |
| 698 | } |
| 699 | assertTrue(p.isShutdown()); |
| 700 | assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
| 701 | assertTrue(p.isTerminated()); |
| 702 | for (ScheduledFuture task : tasks) { |
| 703 | assertTrue(task.isDone()); |
| 704 | assertFalse(task.isCancelled()); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
| 710 | * delayed tasks are cancelled at shutdown |
| 711 | */ |
| 712 | public void testShutdown2() throws InterruptedException { |
| 713 | CustomExecutor p = new CustomExecutor(1); |
| 714 | p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
| 715 | assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
| 716 | assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
| 717 | ScheduledFuture[] tasks = new ScheduledFuture[5]; |
| 718 | for (int i = 0; i < tasks.length; i++) |
| 719 | tasks[i] = p.schedule(new NoOpRunnable(), |
| 720 | SHORT_DELAY_MS, MILLISECONDS); |
| 721 | BlockingQueue q = p.getQueue(); |
| 722 | assertEquals(tasks.length, q.size()); |
| 723 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 724 | assertTrue(p.isShutdown()); |
| 725 | assertTrue(q.isEmpty()); |
| 726 | assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
| 727 | assertTrue(p.isTerminated()); |
| 728 | for (ScheduledFuture task : tasks) { |
| 729 | assertTrue(task.isDone()); |
| 730 | assertTrue(task.isCancelled()); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | /** |
| 735 | * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
| 736 | * periodic tasks are cancelled at shutdown |
| 737 | */ |
| 738 | public void testShutdown3() throws InterruptedException { |
| 739 | CustomExecutor p = new CustomExecutor(1); |
| 740 | assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
| 741 | assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
| 742 | p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
| 743 | assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
| 744 | assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
| 745 | long initialDelay = LONG_DELAY_MS; |
| 746 | ScheduledFuture task = |
| 747 | p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay, |
| 748 | 5, MILLISECONDS); |
| 749 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 750 | assertTrue(p.isShutdown()); |
| 751 | assertTrue(p.getQueue().isEmpty()); |
| 752 | assertTrue(task.isDone()); |
| 753 | assertTrue(task.isCancelled()); |
| 754 | joinPool(p); |
| 755 | } |
| 756 | |
| 757 | /** |
| 758 | * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true, |
| 759 | * periodic tasks are not cancelled at shutdown |
| 760 | */ |
| 761 | public void testShutdown4() throws InterruptedException { |
| 762 | CustomExecutor p = new CustomExecutor(1); |
| 763 | final CountDownLatch counter = new CountDownLatch(2); |
| 764 | try { |
| 765 | p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
| 766 | assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
| 767 | assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
| 768 | final Runnable r = new CheckedRunnable() { |
| 769 | public void realRun() { |
| 770 | counter.countDown(); |
| 771 | }}; |
| 772 | ScheduledFuture task = |
| 773 | p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS); |
| 774 | assertFalse(task.isDone()); |
| 775 | assertFalse(task.isCancelled()); |
| 776 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 777 | assertFalse(task.isCancelled()); |
| 778 | assertFalse(p.isTerminated()); |
| 779 | assertTrue(p.isShutdown()); |
| 780 | assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 781 | assertFalse(task.isCancelled()); |
| 782 | assertTrue(task.cancel(false)); |
| 783 | assertTrue(task.isDone()); |
| 784 | assertTrue(task.isCancelled()); |
| 785 | assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
| 786 | assertTrue(p.isTerminated()); |
| 787 | } |
| 788 | finally { |
| 789 | joinPool(p); |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | /** |
| 794 | * completed submit of callable returns result |
| 795 | */ |
| 796 | public void testSubmitCallable() throws Exception { |
| 797 | ExecutorService e = new CustomExecutor(2); |
| 798 | try { |
| 799 | Future<String> future = e.submit(new StringTask()); |
| 800 | String result = future.get(); |
| 801 | assertSame(TEST_STRING, result); |
| 802 | } finally { |
| 803 | joinPool(e); |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | /** |
| 808 | * completed submit of runnable returns successfully |
| 809 | */ |
| 810 | public void testSubmitRunnable() throws Exception { |
| 811 | ExecutorService e = new CustomExecutor(2); |
| 812 | try { |
| 813 | Future<?> future = e.submit(new NoOpRunnable()); |
| 814 | future.get(); |
| 815 | assertTrue(future.isDone()); |
| 816 | } finally { |
| 817 | joinPool(e); |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | /** |
| 822 | * completed submit of (runnable, result) returns result |
| 823 | */ |
| 824 | public void testSubmitRunnable2() throws Exception { |
| 825 | ExecutorService e = new CustomExecutor(2); |
| 826 | try { |
| 827 | Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
| 828 | String result = future.get(); |
| 829 | assertSame(TEST_STRING, result); |
| 830 | } finally { |
| 831 | joinPool(e); |
| 832 | } |
| 833 | } |
| 834 | |
| 835 | /** |
| 836 | * invokeAny(null) throws NPE |
| 837 | */ |
| 838 | public void testInvokeAny1() throws Exception { |
| 839 | ExecutorService e = new CustomExecutor(2); |
| 840 | try { |
| 841 | e.invokeAny(null); |
| 842 | shouldThrow(); |
| 843 | } catch (NullPointerException success) { |
| 844 | } finally { |
| 845 | joinPool(e); |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | /** |
| 850 | * invokeAny(empty collection) throws IAE |
| 851 | */ |
| 852 | public void testInvokeAny2() throws Exception { |
| 853 | ExecutorService e = new CustomExecutor(2); |
| 854 | try { |
| 855 | e.invokeAny(new ArrayList<Callable<String>>()); |
| 856 | shouldThrow(); |
| 857 | } catch (IllegalArgumentException success) { |
| 858 | } finally { |
| 859 | joinPool(e); |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | /** |
| 864 | * invokeAny(c) throws NPE if c has null elements |
| 865 | */ |
| 866 | public void testInvokeAny3() throws Exception { |
| 867 | CountDownLatch latch = new CountDownLatch(1); |
| 868 | ExecutorService e = new CustomExecutor(2); |
| 869 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 870 | l.add(latchAwaitingStringTask(latch)); |
| 871 | l.add(null); |
| 872 | try { |
| 873 | e.invokeAny(l); |
| 874 | shouldThrow(); |
| 875 | } catch (NullPointerException success) { |
| 876 | } finally { |
| 877 | latch.countDown(); |
| 878 | joinPool(e); |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | /** |
| 883 | * invokeAny(c) throws ExecutionException if no task completes |
| 884 | */ |
| 885 | public void testInvokeAny4() throws Exception { |
| 886 | ExecutorService e = new CustomExecutor(2); |
| 887 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 888 | l.add(new NPETask()); |
| 889 | try { |
| 890 | e.invokeAny(l); |
| 891 | shouldThrow(); |
| 892 | } catch (ExecutionException success) { |
| 893 | assertTrue(success.getCause() instanceof NullPointerException); |
| 894 | } finally { |
| 895 | joinPool(e); |
| 896 | } |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * invokeAny(c) returns result of some task |
| 901 | */ |
| 902 | public void testInvokeAny5() throws Exception { |
| 903 | ExecutorService e = new CustomExecutor(2); |
| 904 | try { |
| 905 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 906 | l.add(new StringTask()); |
| 907 | l.add(new StringTask()); |
| 908 | String result = e.invokeAny(l); |
| 909 | assertSame(TEST_STRING, result); |
| 910 | } finally { |
| 911 | joinPool(e); |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | /** |
| 916 | * invokeAll(null) throws NPE |
| 917 | */ |
| 918 | public void testInvokeAll1() throws Exception { |
| 919 | ExecutorService e = new CustomExecutor(2); |
| 920 | try { |
| 921 | e.invokeAll(null); |
| 922 | shouldThrow(); |
| 923 | } catch (NullPointerException success) { |
| 924 | } finally { |
| 925 | joinPool(e); |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | /** |
| 930 | * invokeAll(empty collection) returns empty collection |
| 931 | */ |
| 932 | public void testInvokeAll2() throws Exception { |
| 933 | ExecutorService e = new CustomExecutor(2); |
| 934 | try { |
| 935 | List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
| 936 | assertTrue(r.isEmpty()); |
| 937 | } finally { |
| 938 | joinPool(e); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | /** |
| 943 | * invokeAll(c) throws NPE if c has null elements |
| 944 | */ |
| 945 | public void testInvokeAll3() throws Exception { |
| 946 | ExecutorService e = new CustomExecutor(2); |
| 947 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 948 | l.add(new StringTask()); |
| 949 | l.add(null); |
| 950 | try { |
| 951 | e.invokeAll(l); |
| 952 | shouldThrow(); |
| 953 | } catch (NullPointerException success) { |
| 954 | } finally { |
| 955 | joinPool(e); |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | /** |
| 960 | * get of invokeAll(c) throws exception on failed task |
| 961 | */ |
| 962 | public void testInvokeAll4() throws Exception { |
| 963 | ExecutorService e = new CustomExecutor(2); |
| 964 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 965 | l.add(new NPETask()); |
| 966 | List<Future<String>> futures = e.invokeAll(l); |
| 967 | assertEquals(1, futures.size()); |
| 968 | try { |
| 969 | futures.get(0).get(); |
| 970 | shouldThrow(); |
| 971 | } catch (ExecutionException success) { |
| 972 | assertTrue(success.getCause() instanceof NullPointerException); |
| 973 | } finally { |
| 974 | joinPool(e); |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | /** |
| 979 | * invokeAll(c) returns results of all completed tasks |
| 980 | */ |
| 981 | public void testInvokeAll5() throws Exception { |
| 982 | ExecutorService e = new CustomExecutor(2); |
| 983 | try { |
| 984 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 985 | l.add(new StringTask()); |
| 986 | l.add(new StringTask()); |
| 987 | List<Future<String>> futures = e.invokeAll(l); |
| 988 | assertEquals(2, futures.size()); |
| 989 | for (Future<String> future : futures) |
| 990 | assertSame(TEST_STRING, future.get()); |
| 991 | } finally { |
| 992 | joinPool(e); |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | /** |
| 997 | * timed invokeAny(null) throws NPE |
| 998 | */ |
| 999 | public void testTimedInvokeAny1() throws Exception { |
| 1000 | ExecutorService e = new CustomExecutor(2); |
| 1001 | try { |
| 1002 | e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1003 | shouldThrow(); |
| 1004 | } catch (NullPointerException success) { |
| 1005 | } finally { |
| 1006 | joinPool(e); |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | /** |
| 1011 | * timed invokeAny(,,null) throws NPE |
| 1012 | */ |
| 1013 | public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
| 1014 | ExecutorService e = new CustomExecutor(2); |
| 1015 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1016 | l.add(new StringTask()); |
| 1017 | try { |
| 1018 | e.invokeAny(l, MEDIUM_DELAY_MS, null); |
| 1019 | shouldThrow(); |
| 1020 | } catch (NullPointerException success) { |
| 1021 | } finally { |
| 1022 | joinPool(e); |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | /** |
| 1027 | * timed invokeAny(empty collection) throws IAE |
| 1028 | */ |
| 1029 | public void testTimedInvokeAny2() throws Exception { |
| 1030 | ExecutorService e = new CustomExecutor(2); |
| 1031 | try { |
| 1032 | e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
| 1033 | shouldThrow(); |
| 1034 | } catch (IllegalArgumentException success) { |
| 1035 | } finally { |
| 1036 | joinPool(e); |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | /** |
| 1041 | * timed invokeAny(c) throws NPE if c has null elements |
| 1042 | */ |
| 1043 | public void testTimedInvokeAny3() throws Exception { |
| 1044 | CountDownLatch latch = new CountDownLatch(1); |
| 1045 | ExecutorService e = new CustomExecutor(2); |
| 1046 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1047 | l.add(latchAwaitingStringTask(latch)); |
| 1048 | l.add(null); |
| 1049 | try { |
| 1050 | e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1051 | shouldThrow(); |
| 1052 | } catch (NullPointerException success) { |
| 1053 | } finally { |
| 1054 | latch.countDown(); |
| 1055 | joinPool(e); |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | /** |
| 1060 | * timed invokeAny(c) throws ExecutionException if no task completes |
| 1061 | */ |
| 1062 | public void testTimedInvokeAny4() throws Exception { |
| 1063 | ExecutorService e = new CustomExecutor(2); |
| 1064 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1065 | l.add(new NPETask()); |
| 1066 | try { |
| 1067 | e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1068 | shouldThrow(); |
| 1069 | } catch (ExecutionException success) { |
| 1070 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1071 | } finally { |
| 1072 | joinPool(e); |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | /** |
| 1077 | * timed invokeAny(c) returns result of some task |
| 1078 | */ |
| 1079 | public void testTimedInvokeAny5() throws Exception { |
| 1080 | ExecutorService e = new CustomExecutor(2); |
| 1081 | try { |
| 1082 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1083 | l.add(new StringTask()); |
| 1084 | l.add(new StringTask()); |
| 1085 | String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1086 | assertSame(TEST_STRING, result); |
| 1087 | } finally { |
| 1088 | joinPool(e); |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | /** |
| 1093 | * timed invokeAll(null) throws NPE |
| 1094 | */ |
| 1095 | public void testTimedInvokeAll1() throws Exception { |
| 1096 | ExecutorService e = new CustomExecutor(2); |
| 1097 | try { |
| 1098 | e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1099 | shouldThrow(); |
| 1100 | } catch (NullPointerException success) { |
| 1101 | } finally { |
| 1102 | joinPool(e); |
| 1103 | } |
| 1104 | } |
| 1105 | |
| 1106 | /** |
| 1107 | * timed invokeAll(,,null) throws NPE |
| 1108 | */ |
| 1109 | public void testTimedInvokeAllNullTimeUnit() throws Exception { |
| 1110 | ExecutorService e = new CustomExecutor(2); |
| 1111 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1112 | l.add(new StringTask()); |
| 1113 | try { |
| 1114 | e.invokeAll(l, MEDIUM_DELAY_MS, null); |
| 1115 | shouldThrow(); |
| 1116 | } catch (NullPointerException success) { |
| 1117 | } finally { |
| 1118 | joinPool(e); |
| 1119 | } |
| 1120 | } |
| 1121 | |
| 1122 | /** |
| 1123 | * timed invokeAll(empty collection) returns empty collection |
| 1124 | */ |
| 1125 | public void testTimedInvokeAll2() throws Exception { |
| 1126 | ExecutorService e = new CustomExecutor(2); |
| 1127 | try { |
| 1128 | List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
| 1129 | assertTrue(r.isEmpty()); |
| 1130 | } finally { |
| 1131 | joinPool(e); |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | /** |
| 1136 | * timed invokeAll(c) throws NPE if c has null elements |
| 1137 | */ |
| 1138 | public void testTimedInvokeAll3() throws Exception { |
| 1139 | ExecutorService e = new CustomExecutor(2); |
| 1140 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1141 | l.add(new StringTask()); |
| 1142 | l.add(null); |
| 1143 | try { |
| 1144 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1145 | shouldThrow(); |
| 1146 | } catch (NullPointerException success) { |
| 1147 | } finally { |
| 1148 | joinPool(e); |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | /** |
| 1153 | * get of element of invokeAll(c) throws exception on failed task |
| 1154 | */ |
| 1155 | public void testTimedInvokeAll4() throws Exception { |
| 1156 | ExecutorService e = new CustomExecutor(2); |
| 1157 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1158 | l.add(new NPETask()); |
| 1159 | List<Future<String>> futures = |
| 1160 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1161 | assertEquals(1, futures.size()); |
| 1162 | try { |
| 1163 | futures.get(0).get(); |
| 1164 | shouldThrow(); |
| 1165 | } catch (ExecutionException success) { |
| 1166 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1167 | } finally { |
| 1168 | joinPool(e); |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | /** |
| 1173 | * timed invokeAll(c) returns results of all completed tasks |
| 1174 | */ |
| 1175 | public void testTimedInvokeAll5() throws Exception { |
| 1176 | ExecutorService e = new CustomExecutor(2); |
| 1177 | try { |
| 1178 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1179 | l.add(new StringTask()); |
| 1180 | l.add(new StringTask()); |
| 1181 | List<Future<String>> futures = |
| 1182 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1183 | assertEquals(2, futures.size()); |
| 1184 | for (Future<String> future : futures) |
| 1185 | assertSame(TEST_STRING, future.get()); |
| 1186 | } finally { |
| 1187 | joinPool(e); |
| 1188 | } |
| 1189 | } |
| 1190 | |
| 1191 | /** |
| 1192 | * timed invokeAll(c) cancels tasks not completed by timeout |
| 1193 | */ |
| 1194 | public void testTimedInvokeAll6() throws Exception { |
| 1195 | ExecutorService e = new CustomExecutor(2); |
| 1196 | try { |
| 1197 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1198 | l.add(new StringTask()); |
| 1199 | l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
| 1200 | l.add(new StringTask()); |
| 1201 | List<Future<String>> futures = |
| 1202 | e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS); |
| 1203 | assertEquals(l.size(), futures.size()); |
| 1204 | for (Future future : futures) |
| 1205 | assertTrue(future.isDone()); |
| 1206 | assertFalse(futures.get(0).isCancelled()); |
| 1207 | assertTrue(futures.get(1).isCancelled()); |
| 1208 | } finally { |
| 1209 | joinPool(e); |
| 1210 | } |
| 1211 | } |
| 1212 | |
| 1213 | } |