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 | * Other contributors include Andrew Wright, Jeffrey Hayes, |
| 6 | * Pat Fisher, Mike Judd. |
| 7 | */ |
| 8 | |
| 9 | package jsr166; |
| 10 | |
| 11 | import junit.framework.*; |
| 12 | import java.util.concurrent.*; |
| 13 | import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| 14 | import static java.util.concurrent.TimeUnit.NANOSECONDS; |
| 15 | import java.util.*; |
| 16 | |
| 17 | public class ThreadPoolExecutorTest extends JSR166TestCase { |
| 18 | |
| 19 | static class ExtendedTPE extends ThreadPoolExecutor { |
| 20 | final CountDownLatch beforeCalled = new CountDownLatch(1); |
| 21 | final CountDownLatch afterCalled = new CountDownLatch(1); |
| 22 | final CountDownLatch terminatedCalled = new CountDownLatch(1); |
| 23 | |
| 24 | public ExtendedTPE() { |
| 25 | super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>()); |
| 26 | } |
| 27 | protected void beforeExecute(Thread t, Runnable r) { |
| 28 | beforeCalled.countDown(); |
| 29 | } |
| 30 | protected void afterExecute(Runnable r, Throwable t) { |
| 31 | afterCalled.countDown(); |
| 32 | } |
| 33 | protected void terminated() { |
| 34 | terminatedCalled.countDown(); |
| 35 | } |
| 36 | |
| 37 | public boolean beforeCalled() { |
| 38 | return beforeCalled.getCount() == 0; |
| 39 | } |
| 40 | public boolean afterCalled() { |
| 41 | return afterCalled.getCount() == 0; |
| 42 | } |
| 43 | public boolean terminatedCalled() { |
| 44 | return terminatedCalled.getCount() == 0; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | static class FailingThreadFactory implements ThreadFactory { |
| 49 | int calls = 0; |
| 50 | public Thread newThread(Runnable r) { |
| 51 | if (++calls > 1) return null; |
| 52 | return new Thread(r); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * execute successfully executes a runnable |
| 58 | */ |
| 59 | public void testExecute() throws InterruptedException { |
| 60 | final ThreadPoolExecutor p = |
| 61 | new ThreadPoolExecutor(1, 1, |
| 62 | LONG_DELAY_MS, MILLISECONDS, |
| 63 | new ArrayBlockingQueue<Runnable>(10)); |
| 64 | final CountDownLatch done = new CountDownLatch(1); |
| 65 | final Runnable task = new CheckedRunnable() { |
| 66 | public void realRun() { |
| 67 | done.countDown(); |
| 68 | }}; |
| 69 | try { |
| 70 | p.execute(task); |
| 71 | assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 72 | } finally { |
| 73 | joinPool(p); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * getActiveCount increases but doesn't overestimate, when a |
| 79 | * thread becomes active |
| 80 | */ |
| 81 | public void testGetActiveCount() throws InterruptedException { |
| 82 | final ThreadPoolExecutor p = |
| 83 | new ThreadPoolExecutor(2, 2, |
| 84 | LONG_DELAY_MS, MILLISECONDS, |
| 85 | new ArrayBlockingQueue<Runnable>(10)); |
| 86 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 87 | final CountDownLatch done = new CountDownLatch(1); |
| 88 | try { |
| 89 | assertEquals(0, p.getActiveCount()); |
| 90 | p.execute(new CheckedRunnable() { |
| 91 | public void realRun() throws InterruptedException { |
| 92 | threadStarted.countDown(); |
| 93 | assertEquals(1, p.getActiveCount()); |
| 94 | done.await(); |
| 95 | }}); |
| 96 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 97 | assertEquals(1, p.getActiveCount()); |
| 98 | } finally { |
| 99 | done.countDown(); |
| 100 | joinPool(p); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * prestartCoreThread starts a thread if under corePoolSize, else doesn't |
| 106 | */ |
| 107 | public void testPrestartCoreThread() { |
| 108 | final ThreadPoolExecutor p = |
| 109 | new ThreadPoolExecutor(2, 2, |
| 110 | LONG_DELAY_MS, MILLISECONDS, |
| 111 | new ArrayBlockingQueue<Runnable>(10)); |
| 112 | assertEquals(0, p.getPoolSize()); |
| 113 | assertTrue(p.prestartCoreThread()); |
| 114 | assertEquals(1, p.getPoolSize()); |
| 115 | assertTrue(p.prestartCoreThread()); |
| 116 | assertEquals(2, p.getPoolSize()); |
| 117 | assertFalse(p.prestartCoreThread()); |
| 118 | assertEquals(2, p.getPoolSize()); |
| 119 | joinPool(p); |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * prestartAllCoreThreads starts all corePoolSize threads |
| 124 | */ |
| 125 | public void testPrestartAllCoreThreads() { |
| 126 | final ThreadPoolExecutor p = |
| 127 | new ThreadPoolExecutor(2, 2, |
| 128 | LONG_DELAY_MS, MILLISECONDS, |
| 129 | new ArrayBlockingQueue<Runnable>(10)); |
| 130 | assertEquals(0, p.getPoolSize()); |
| 131 | p.prestartAllCoreThreads(); |
| 132 | assertEquals(2, p.getPoolSize()); |
| 133 | p.prestartAllCoreThreads(); |
| 134 | assertEquals(2, p.getPoolSize()); |
| 135 | joinPool(p); |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * getCompletedTaskCount increases, but doesn't overestimate, |
| 140 | * when tasks complete |
| 141 | */ |
| 142 | public void testGetCompletedTaskCount() throws InterruptedException { |
| 143 | final ThreadPoolExecutor p = |
| 144 | new ThreadPoolExecutor(2, 2, |
| 145 | LONG_DELAY_MS, MILLISECONDS, |
| 146 | new ArrayBlockingQueue<Runnable>(10)); |
| 147 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 148 | final CountDownLatch threadProceed = new CountDownLatch(1); |
| 149 | final CountDownLatch threadDone = new CountDownLatch(1); |
| 150 | try { |
| 151 | assertEquals(0, p.getCompletedTaskCount()); |
| 152 | p.execute(new CheckedRunnable() { |
| 153 | public void realRun() throws InterruptedException { |
| 154 | threadStarted.countDown(); |
| 155 | assertEquals(0, p.getCompletedTaskCount()); |
| 156 | threadProceed.await(); |
| 157 | threadDone.countDown(); |
| 158 | }}); |
| 159 | await(threadStarted); |
| 160 | assertEquals(0, p.getCompletedTaskCount()); |
| 161 | threadProceed.countDown(); |
| 162 | threadDone.await(); |
| 163 | long startTime = System.nanoTime(); |
| 164 | while (p.getCompletedTaskCount() != 1) { |
| 165 | if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
| 166 | fail("timed out"); |
| 167 | Thread.yield(); |
| 168 | } |
| 169 | } finally { |
| 170 | joinPool(p); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * getCorePoolSize returns size given in constructor if not otherwise set |
| 176 | */ |
| 177 | public void testGetCorePoolSize() { |
| 178 | final ThreadPoolExecutor p = |
| 179 | new ThreadPoolExecutor(1, 1, |
| 180 | LONG_DELAY_MS, MILLISECONDS, |
| 181 | new ArrayBlockingQueue<Runnable>(10)); |
| 182 | assertEquals(1, p.getCorePoolSize()); |
| 183 | joinPool(p); |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * getKeepAliveTime returns value given in constructor if not otherwise set |
| 188 | */ |
| 189 | public void testGetKeepAliveTime() { |
| 190 | final ThreadPoolExecutor p = |
| 191 | new ThreadPoolExecutor(2, 2, |
| 192 | 1000, MILLISECONDS, |
| 193 | new ArrayBlockingQueue<Runnable>(10)); |
| 194 | assertEquals(1, p.getKeepAliveTime(TimeUnit.SECONDS)); |
| 195 | joinPool(p); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * getThreadFactory returns factory in constructor if not set |
| 200 | */ |
| 201 | public void testGetThreadFactory() { |
| 202 | ThreadFactory tf = new SimpleThreadFactory(); |
| 203 | final ThreadPoolExecutor p = |
| 204 | new ThreadPoolExecutor(1, 2, |
| 205 | LONG_DELAY_MS, MILLISECONDS, |
| 206 | new ArrayBlockingQueue<Runnable>(10), |
| 207 | tf, |
| 208 | new NoOpREHandler()); |
| 209 | assertSame(tf, p.getThreadFactory()); |
| 210 | joinPool(p); |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * setThreadFactory sets the thread factory returned by getThreadFactory |
| 215 | */ |
| 216 | public void testSetThreadFactory() { |
| 217 | final ThreadPoolExecutor p = |
| 218 | new ThreadPoolExecutor(1, 2, |
| 219 | LONG_DELAY_MS, MILLISECONDS, |
| 220 | new ArrayBlockingQueue<Runnable>(10)); |
| 221 | ThreadFactory tf = new SimpleThreadFactory(); |
| 222 | p.setThreadFactory(tf); |
| 223 | assertSame(tf, p.getThreadFactory()); |
| 224 | joinPool(p); |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * setThreadFactory(null) throws NPE |
| 229 | */ |
| 230 | public void testSetThreadFactoryNull() { |
| 231 | final ThreadPoolExecutor p = |
| 232 | new ThreadPoolExecutor(1, 2, |
| 233 | LONG_DELAY_MS, MILLISECONDS, |
| 234 | new ArrayBlockingQueue<Runnable>(10)); |
| 235 | try { |
| 236 | p.setThreadFactory(null); |
| 237 | shouldThrow(); |
| 238 | } catch (NullPointerException success) { |
| 239 | } finally { |
| 240 | joinPool(p); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * getRejectedExecutionHandler returns handler in constructor if not set |
| 246 | */ |
| 247 | public void testGetRejectedExecutionHandler() { |
| 248 | final RejectedExecutionHandler h = new NoOpREHandler(); |
| 249 | final ThreadPoolExecutor p = |
| 250 | new ThreadPoolExecutor(1, 2, |
| 251 | LONG_DELAY_MS, MILLISECONDS, |
| 252 | new ArrayBlockingQueue<Runnable>(10), |
| 253 | h); |
| 254 | assertSame(h, p.getRejectedExecutionHandler()); |
| 255 | joinPool(p); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * setRejectedExecutionHandler sets the handler returned by |
| 260 | * getRejectedExecutionHandler |
| 261 | */ |
| 262 | public void testSetRejectedExecutionHandler() { |
| 263 | final ThreadPoolExecutor p = |
| 264 | new ThreadPoolExecutor(1, 2, |
| 265 | LONG_DELAY_MS, MILLISECONDS, |
| 266 | new ArrayBlockingQueue<Runnable>(10)); |
| 267 | RejectedExecutionHandler h = new NoOpREHandler(); |
| 268 | p.setRejectedExecutionHandler(h); |
| 269 | assertSame(h, p.getRejectedExecutionHandler()); |
| 270 | joinPool(p); |
| 271 | } |
| 272 | |
| 273 | /** |
| 274 | * setRejectedExecutionHandler(null) throws NPE |
| 275 | */ |
| 276 | public void testSetRejectedExecutionHandlerNull() { |
| 277 | final ThreadPoolExecutor p = |
| 278 | new ThreadPoolExecutor(1, 2, |
| 279 | LONG_DELAY_MS, MILLISECONDS, |
| 280 | new ArrayBlockingQueue<Runnable>(10)); |
| 281 | try { |
| 282 | p.setRejectedExecutionHandler(null); |
| 283 | shouldThrow(); |
| 284 | } catch (NullPointerException success) { |
| 285 | } finally { |
| 286 | joinPool(p); |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * getLargestPoolSize increases, but doesn't overestimate, when |
| 292 | * multiple threads active |
| 293 | */ |
| 294 | public void testGetLargestPoolSize() throws InterruptedException { |
| 295 | final int THREADS = 3; |
| 296 | final ThreadPoolExecutor p = |
| 297 | new ThreadPoolExecutor(THREADS, THREADS, |
| 298 | LONG_DELAY_MS, MILLISECONDS, |
| 299 | new ArrayBlockingQueue<Runnable>(10)); |
| 300 | final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
| 301 | final CountDownLatch done = new CountDownLatch(1); |
| 302 | try { |
| 303 | assertEquals(0, p.getLargestPoolSize()); |
| 304 | for (int i = 0; i < THREADS; i++) |
| 305 | p.execute(new CheckedRunnable() { |
| 306 | public void realRun() throws InterruptedException { |
| 307 | threadsStarted.countDown(); |
| 308 | done.await(); |
| 309 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 310 | }}); |
| 311 | assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 312 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 313 | } finally { |
| 314 | done.countDown(); |
| 315 | joinPool(p); |
| 316 | assertEquals(THREADS, p.getLargestPoolSize()); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | /** |
| 321 | * getMaximumPoolSize returns value given in constructor if not |
| 322 | * otherwise set |
| 323 | */ |
| 324 | public void testGetMaximumPoolSize() { |
| 325 | final ThreadPoolExecutor p = |
| 326 | new ThreadPoolExecutor(2, 3, |
| 327 | LONG_DELAY_MS, MILLISECONDS, |
| 328 | new ArrayBlockingQueue<Runnable>(10)); |
| 329 | assertEquals(3, p.getMaximumPoolSize()); |
| 330 | joinPool(p); |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * getPoolSize increases, but doesn't overestimate, when threads |
| 335 | * become active |
| 336 | */ |
| 337 | public void testGetPoolSize() throws InterruptedException { |
| 338 | final ThreadPoolExecutor p = |
| 339 | new ThreadPoolExecutor(1, 1, |
| 340 | LONG_DELAY_MS, MILLISECONDS, |
| 341 | new ArrayBlockingQueue<Runnable>(10)); |
| 342 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 343 | final CountDownLatch done = new CountDownLatch(1); |
| 344 | try { |
| 345 | assertEquals(0, p.getPoolSize()); |
| 346 | p.execute(new CheckedRunnable() { |
| 347 | public void realRun() throws InterruptedException { |
| 348 | threadStarted.countDown(); |
| 349 | assertEquals(1, p.getPoolSize()); |
| 350 | done.await(); |
| 351 | }}); |
| 352 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 353 | assertEquals(1, p.getPoolSize()); |
| 354 | } finally { |
| 355 | done.countDown(); |
| 356 | joinPool(p); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | /** |
| 361 | * getTaskCount increases, but doesn't overestimate, when tasks submitted |
| 362 | */ |
| 363 | public void testGetTaskCount() throws InterruptedException { |
| 364 | final ThreadPoolExecutor p = |
| 365 | new ThreadPoolExecutor(1, 1, |
| 366 | LONG_DELAY_MS, MILLISECONDS, |
| 367 | new ArrayBlockingQueue<Runnable>(10)); |
| 368 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 369 | final CountDownLatch done = new CountDownLatch(1); |
| 370 | try { |
| 371 | assertEquals(0, p.getTaskCount()); |
| 372 | p.execute(new CheckedRunnable() { |
| 373 | public void realRun() throws InterruptedException { |
| 374 | threadStarted.countDown(); |
| 375 | assertEquals(1, p.getTaskCount()); |
| 376 | done.await(); |
| 377 | }}); |
| 378 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 379 | assertEquals(1, p.getTaskCount()); |
| 380 | } finally { |
| 381 | done.countDown(); |
| 382 | joinPool(p); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * isShutdown is false before shutdown, true after |
| 388 | */ |
| 389 | public void testIsShutdown() { |
| 390 | final ThreadPoolExecutor p = |
| 391 | new ThreadPoolExecutor(1, 1, |
| 392 | LONG_DELAY_MS, MILLISECONDS, |
| 393 | new ArrayBlockingQueue<Runnable>(10)); |
| 394 | assertFalse(p.isShutdown()); |
| 395 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 396 | assertTrue(p.isShutdown()); |
| 397 | joinPool(p); |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * awaitTermination on a non-shutdown pool times out |
| 402 | */ |
| 403 | public void testAwaitTermination_timesOut() throws InterruptedException { |
| 404 | final ThreadPoolExecutor p = |
| 405 | new ThreadPoolExecutor(1, 1, |
| 406 | LONG_DELAY_MS, MILLISECONDS, |
| 407 | new ArrayBlockingQueue<Runnable>(10)); |
| 408 | assertFalse(p.isTerminated()); |
| 409 | assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
| 410 | assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
| 411 | assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
| 412 | assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
| 413 | assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
| 414 | assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
| 415 | long timeoutNanos = 999999L; |
| 416 | long startTime = System.nanoTime(); |
| 417 | assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
| 418 | assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
| 419 | assertFalse(p.isTerminated()); |
| 420 | startTime = System.nanoTime(); |
| 421 | long timeoutMillis = timeoutMillis(); |
| 422 | assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
| 423 | assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
| 424 | assertFalse(p.isTerminated()); |
| 425 | p.shutdown(); |
| 426 | assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 427 | assertTrue(p.isTerminated()); |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * isTerminated is false before termination, true after |
| 432 | */ |
| 433 | public void testIsTerminated() throws InterruptedException { |
| 434 | final ThreadPoolExecutor p = |
| 435 | new ThreadPoolExecutor(1, 1, |
| 436 | LONG_DELAY_MS, MILLISECONDS, |
| 437 | new ArrayBlockingQueue<Runnable>(10)); |
| 438 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 439 | final CountDownLatch done = new CountDownLatch(1); |
| 440 | assertFalse(p.isTerminated()); |
| 441 | try { |
| 442 | p.execute(new CheckedRunnable() { |
| 443 | public void realRun() throws InterruptedException { |
| 444 | assertFalse(p.isTerminated()); |
| 445 | threadStarted.countDown(); |
| 446 | done.await(); |
| 447 | }}); |
| 448 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 449 | assertFalse(p.isTerminating()); |
| 450 | done.countDown(); |
| 451 | } finally { |
| 452 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 453 | } |
| 454 | assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 455 | assertTrue(p.isTerminated()); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * isTerminating is not true when running or when terminated |
| 460 | */ |
| 461 | public void testIsTerminating() throws InterruptedException { |
| 462 | final ThreadPoolExecutor p = |
| 463 | new ThreadPoolExecutor(1, 1, |
| 464 | LONG_DELAY_MS, MILLISECONDS, |
| 465 | new ArrayBlockingQueue<Runnable>(10)); |
| 466 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 467 | final CountDownLatch done = new CountDownLatch(1); |
| 468 | try { |
| 469 | assertFalse(p.isTerminating()); |
| 470 | p.execute(new CheckedRunnable() { |
| 471 | public void realRun() throws InterruptedException { |
| 472 | assertFalse(p.isTerminating()); |
| 473 | threadStarted.countDown(); |
| 474 | done.await(); |
| 475 | }}); |
| 476 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 477 | assertFalse(p.isTerminating()); |
| 478 | done.countDown(); |
| 479 | } finally { |
| 480 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 481 | } |
| 482 | assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 483 | assertTrue(p.isTerminated()); |
| 484 | assertFalse(p.isTerminating()); |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * getQueue returns the work queue, which contains queued tasks |
| 489 | */ |
| 490 | public void testGetQueue() throws InterruptedException { |
| 491 | final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
| 492 | final ThreadPoolExecutor p = |
| 493 | new ThreadPoolExecutor(1, 1, |
| 494 | LONG_DELAY_MS, MILLISECONDS, |
| 495 | q); |
| 496 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 497 | final CountDownLatch done = new CountDownLatch(1); |
| 498 | try { |
| 499 | FutureTask[] tasks = new FutureTask[5]; |
| 500 | for (int i = 0; i < tasks.length; i++) { |
| 501 | Callable task = new CheckedCallable<Boolean>() { |
| 502 | public Boolean realCall() throws InterruptedException { |
| 503 | threadStarted.countDown(); |
| 504 | assertSame(q, p.getQueue()); |
| 505 | done.await(); |
| 506 | return Boolean.TRUE; |
| 507 | }}; |
| 508 | tasks[i] = new FutureTask(task); |
| 509 | p.execute(tasks[i]); |
| 510 | } |
| 511 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 512 | assertSame(q, p.getQueue()); |
| 513 | assertFalse(q.contains(tasks[0])); |
| 514 | assertTrue(q.contains(tasks[tasks.length - 1])); |
| 515 | assertEquals(tasks.length - 1, q.size()); |
| 516 | } finally { |
| 517 | done.countDown(); |
| 518 | joinPool(p); |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | /** |
| 523 | * remove(task) removes queued task, and fails to remove active task |
| 524 | */ |
| 525 | public void testRemove() throws InterruptedException { |
| 526 | BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
| 527 | final ThreadPoolExecutor p = |
| 528 | new ThreadPoolExecutor(1, 1, |
| 529 | LONG_DELAY_MS, MILLISECONDS, |
| 530 | q); |
| 531 | Runnable[] tasks = new Runnable[5]; |
| 532 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 533 | final CountDownLatch done = new CountDownLatch(1); |
| 534 | try { |
| 535 | for (int i = 0; i < tasks.length; i++) { |
| 536 | tasks[i] = new CheckedRunnable() { |
| 537 | public void realRun() throws InterruptedException { |
| 538 | threadStarted.countDown(); |
| 539 | done.await(); |
| 540 | }}; |
| 541 | p.execute(tasks[i]); |
| 542 | } |
| 543 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 544 | assertFalse(p.remove(tasks[0])); |
| 545 | assertTrue(q.contains(tasks[4])); |
| 546 | assertTrue(q.contains(tasks[3])); |
| 547 | assertTrue(p.remove(tasks[4])); |
| 548 | assertFalse(p.remove(tasks[4])); |
| 549 | assertFalse(q.contains(tasks[4])); |
| 550 | assertTrue(q.contains(tasks[3])); |
| 551 | assertTrue(p.remove(tasks[3])); |
| 552 | assertFalse(q.contains(tasks[3])); |
| 553 | } finally { |
| 554 | done.countDown(); |
| 555 | joinPool(p); |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | /** |
| 560 | * purge removes cancelled tasks from the queue |
| 561 | */ |
| 562 | public void testPurge() throws InterruptedException { |
| 563 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 564 | final CountDownLatch done = new CountDownLatch(1); |
| 565 | final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
| 566 | final ThreadPoolExecutor p = |
| 567 | new ThreadPoolExecutor(1, 1, |
| 568 | LONG_DELAY_MS, MILLISECONDS, |
| 569 | q); |
| 570 | FutureTask[] tasks = new FutureTask[5]; |
| 571 | try { |
| 572 | for (int i = 0; i < tasks.length; i++) { |
| 573 | Callable task = new CheckedCallable<Boolean>() { |
| 574 | public Boolean realCall() throws InterruptedException { |
| 575 | threadStarted.countDown(); |
| 576 | done.await(); |
| 577 | return Boolean.TRUE; |
| 578 | }}; |
| 579 | tasks[i] = new FutureTask(task); |
| 580 | p.execute(tasks[i]); |
| 581 | } |
| 582 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 583 | assertEquals(tasks.length, p.getTaskCount()); |
| 584 | assertEquals(tasks.length - 1, q.size()); |
| 585 | assertEquals(1L, p.getActiveCount()); |
| 586 | assertEquals(0L, p.getCompletedTaskCount()); |
| 587 | tasks[4].cancel(true); |
| 588 | tasks[3].cancel(false); |
| 589 | p.purge(); |
| 590 | assertEquals(tasks.length - 3, q.size()); |
| 591 | assertEquals(tasks.length - 2, p.getTaskCount()); |
| 592 | p.purge(); // Nothing to do |
| 593 | assertEquals(tasks.length - 3, q.size()); |
| 594 | assertEquals(tasks.length - 2, p.getTaskCount()); |
| 595 | } finally { |
| 596 | done.countDown(); |
| 597 | joinPool(p); |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | /** |
| 602 | * shutdownNow returns a list containing tasks that were not run |
| 603 | */ |
| 604 | public void testShutdownNow() { |
| 605 | final ThreadPoolExecutor p = |
| 606 | new ThreadPoolExecutor(1, 1, |
| 607 | LONG_DELAY_MS, MILLISECONDS, |
| 608 | new ArrayBlockingQueue<Runnable>(10)); |
| 609 | List l; |
| 610 | try { |
| 611 | for (int i = 0; i < 5; i++) |
| 612 | p.execute(new MediumPossiblyInterruptedRunnable()); |
| 613 | } |
| 614 | finally { |
| 615 | try { |
| 616 | l = p.shutdownNow(); |
| 617 | } catch (SecurityException ok) { return; } |
| 618 | } |
| 619 | assertTrue(p.isShutdown()); |
| 620 | assertTrue(l.size() <= 4); |
| 621 | } |
| 622 | |
| 623 | // Exception Tests |
| 624 | |
| 625 | /** |
| 626 | * Constructor throws if corePoolSize argument is less than zero |
| 627 | */ |
| 628 | public void testConstructor1() { |
| 629 | try { |
| 630 | new ThreadPoolExecutor(-1, 1, |
| 631 | LONG_DELAY_MS, MILLISECONDS, |
| 632 | new ArrayBlockingQueue<Runnable>(10)); |
| 633 | shouldThrow(); |
| 634 | } catch (IllegalArgumentException success) {} |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * Constructor throws if maximumPoolSize is less than zero |
| 639 | */ |
| 640 | public void testConstructor2() { |
| 641 | try { |
| 642 | new ThreadPoolExecutor(1, -1, |
| 643 | LONG_DELAY_MS, MILLISECONDS, |
| 644 | new ArrayBlockingQueue<Runnable>(10)); |
| 645 | shouldThrow(); |
| 646 | } catch (IllegalArgumentException success) {} |
| 647 | } |
| 648 | |
| 649 | /** |
| 650 | * Constructor throws if maximumPoolSize is equal to zero |
| 651 | */ |
| 652 | public void testConstructor3() { |
| 653 | try { |
| 654 | new ThreadPoolExecutor(1, 0, |
| 655 | LONG_DELAY_MS, MILLISECONDS, |
| 656 | new ArrayBlockingQueue<Runnable>(10)); |
| 657 | shouldThrow(); |
| 658 | } catch (IllegalArgumentException success) {} |
| 659 | } |
| 660 | |
| 661 | /** |
| 662 | * Constructor throws if keepAliveTime is less than zero |
| 663 | */ |
| 664 | public void testConstructor4() { |
| 665 | try { |
| 666 | new ThreadPoolExecutor(1, 2, |
| 667 | -1L, MILLISECONDS, |
| 668 | new ArrayBlockingQueue<Runnable>(10)); |
| 669 | shouldThrow(); |
| 670 | } catch (IllegalArgumentException success) {} |
| 671 | } |
| 672 | |
| 673 | /** |
| 674 | * Constructor throws if corePoolSize is greater than the maximumPoolSize |
| 675 | */ |
| 676 | public void testConstructor5() { |
| 677 | try { |
| 678 | new ThreadPoolExecutor(2, 1, |
| 679 | LONG_DELAY_MS, MILLISECONDS, |
| 680 | new ArrayBlockingQueue<Runnable>(10)); |
| 681 | shouldThrow(); |
| 682 | } catch (IllegalArgumentException success) {} |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * Constructor throws if workQueue is set to null |
| 687 | */ |
| 688 | public void testConstructorNullPointerException() { |
| 689 | try { |
| 690 | new ThreadPoolExecutor(1, 2, |
| 691 | LONG_DELAY_MS, MILLISECONDS, |
| 692 | (BlockingQueue) null); |
| 693 | shouldThrow(); |
| 694 | } catch (NullPointerException success) {} |
| 695 | } |
| 696 | |
| 697 | /** |
| 698 | * Constructor throws if corePoolSize argument is less than zero |
| 699 | */ |
| 700 | public void testConstructor6() { |
| 701 | try { |
| 702 | new ThreadPoolExecutor(-1, 1, |
| 703 | LONG_DELAY_MS, MILLISECONDS, |
| 704 | new ArrayBlockingQueue<Runnable>(10), |
| 705 | new SimpleThreadFactory()); |
| 706 | shouldThrow(); |
| 707 | } catch (IllegalArgumentException success) {} |
| 708 | } |
| 709 | |
| 710 | /** |
| 711 | * Constructor throws if maximumPoolSize is less than zero |
| 712 | */ |
| 713 | public void testConstructor7() { |
| 714 | try { |
| 715 | new ThreadPoolExecutor(1, -1, |
| 716 | LONG_DELAY_MS, MILLISECONDS, |
| 717 | new ArrayBlockingQueue<Runnable>(10), |
| 718 | new SimpleThreadFactory()); |
| 719 | shouldThrow(); |
| 720 | } catch (IllegalArgumentException success) {} |
| 721 | } |
| 722 | |
| 723 | /** |
| 724 | * Constructor throws if maximumPoolSize is equal to zero |
| 725 | */ |
| 726 | public void testConstructor8() { |
| 727 | try { |
| 728 | new ThreadPoolExecutor(1, 0, |
| 729 | LONG_DELAY_MS, MILLISECONDS, |
| 730 | new ArrayBlockingQueue<Runnable>(10), |
| 731 | new SimpleThreadFactory()); |
| 732 | shouldThrow(); |
| 733 | } catch (IllegalArgumentException success) {} |
| 734 | } |
| 735 | |
| 736 | /** |
| 737 | * Constructor throws if keepAliveTime is less than zero |
| 738 | */ |
| 739 | public void testConstructor9() { |
| 740 | try { |
| 741 | new ThreadPoolExecutor(1, 2, |
| 742 | -1L, MILLISECONDS, |
| 743 | new ArrayBlockingQueue<Runnable>(10), |
| 744 | new SimpleThreadFactory()); |
| 745 | shouldThrow(); |
| 746 | } catch (IllegalArgumentException success) {} |
| 747 | } |
| 748 | |
| 749 | /** |
| 750 | * Constructor throws if corePoolSize is greater than the maximumPoolSize |
| 751 | */ |
| 752 | public void testConstructor10() { |
| 753 | try { |
| 754 | new ThreadPoolExecutor(2, 1, |
| 755 | LONG_DELAY_MS, MILLISECONDS, |
| 756 | new ArrayBlockingQueue<Runnable>(10), |
| 757 | new SimpleThreadFactory()); |
| 758 | shouldThrow(); |
| 759 | } catch (IllegalArgumentException success) {} |
| 760 | } |
| 761 | |
| 762 | /** |
| 763 | * Constructor throws if workQueue is set to null |
| 764 | */ |
| 765 | public void testConstructorNullPointerException2() { |
| 766 | try { |
| 767 | new ThreadPoolExecutor(1, 2, |
| 768 | LONG_DELAY_MS, MILLISECONDS, |
| 769 | (BlockingQueue) null, |
| 770 | new SimpleThreadFactory()); |
| 771 | shouldThrow(); |
| 772 | } catch (NullPointerException success) {} |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * Constructor throws if threadFactory is set to null |
| 777 | */ |
| 778 | public void testConstructorNullPointerException3() { |
| 779 | try { |
| 780 | new ThreadPoolExecutor(1, 2, |
| 781 | LONG_DELAY_MS, MILLISECONDS, |
| 782 | new ArrayBlockingQueue<Runnable>(10), |
| 783 | (ThreadFactory) null); |
| 784 | shouldThrow(); |
| 785 | } catch (NullPointerException success) {} |
| 786 | } |
| 787 | |
| 788 | /** |
| 789 | * Constructor throws if corePoolSize argument is less than zero |
| 790 | */ |
| 791 | public void testConstructor11() { |
| 792 | try { |
| 793 | new ThreadPoolExecutor(-1, 1, |
| 794 | LONG_DELAY_MS, MILLISECONDS, |
| 795 | new ArrayBlockingQueue<Runnable>(10), |
| 796 | new NoOpREHandler()); |
| 797 | shouldThrow(); |
| 798 | } catch (IllegalArgumentException success) {} |
| 799 | } |
| 800 | |
| 801 | /** |
| 802 | * Constructor throws if maximumPoolSize is less than zero |
| 803 | */ |
| 804 | public void testConstructor12() { |
| 805 | try { |
| 806 | new ThreadPoolExecutor(1, -1, |
| 807 | LONG_DELAY_MS, MILLISECONDS, |
| 808 | new ArrayBlockingQueue<Runnable>(10), |
| 809 | new NoOpREHandler()); |
| 810 | shouldThrow(); |
| 811 | } catch (IllegalArgumentException success) {} |
| 812 | } |
| 813 | |
| 814 | /** |
| 815 | * Constructor throws if maximumPoolSize is equal to zero |
| 816 | */ |
| 817 | public void testConstructor13() { |
| 818 | try { |
| 819 | new ThreadPoolExecutor(1, 0, |
| 820 | LONG_DELAY_MS, MILLISECONDS, |
| 821 | new ArrayBlockingQueue<Runnable>(10), |
| 822 | new NoOpREHandler()); |
| 823 | shouldThrow(); |
| 824 | } catch (IllegalArgumentException success) {} |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * Constructor throws if keepAliveTime is less than zero |
| 829 | */ |
| 830 | public void testConstructor14() { |
| 831 | try { |
| 832 | new ThreadPoolExecutor(1, 2, |
| 833 | -1L, MILLISECONDS, |
| 834 | new ArrayBlockingQueue<Runnable>(10), |
| 835 | new NoOpREHandler()); |
| 836 | shouldThrow(); |
| 837 | } catch (IllegalArgumentException success) {} |
| 838 | } |
| 839 | |
| 840 | /** |
| 841 | * Constructor throws if corePoolSize is greater than the maximumPoolSize |
| 842 | */ |
| 843 | public void testConstructor15() { |
| 844 | try { |
| 845 | new ThreadPoolExecutor(2, 1, |
| 846 | LONG_DELAY_MS, MILLISECONDS, |
| 847 | new ArrayBlockingQueue<Runnable>(10), |
| 848 | new NoOpREHandler()); |
| 849 | shouldThrow(); |
| 850 | } catch (IllegalArgumentException success) {} |
| 851 | } |
| 852 | |
| 853 | /** |
| 854 | * Constructor throws if workQueue is set to null |
| 855 | */ |
| 856 | public void testConstructorNullPointerException4() { |
| 857 | try { |
| 858 | new ThreadPoolExecutor(1, 2, |
| 859 | LONG_DELAY_MS, MILLISECONDS, |
| 860 | (BlockingQueue) null, |
| 861 | new NoOpREHandler()); |
| 862 | shouldThrow(); |
| 863 | } catch (NullPointerException success) {} |
| 864 | } |
| 865 | |
| 866 | /** |
| 867 | * Constructor throws if handler is set to null |
| 868 | */ |
| 869 | public void testConstructorNullPointerException5() { |
| 870 | try { |
| 871 | new ThreadPoolExecutor(1, 2, |
| 872 | LONG_DELAY_MS, MILLISECONDS, |
| 873 | new ArrayBlockingQueue<Runnable>(10), |
| 874 | (RejectedExecutionHandler) null); |
| 875 | shouldThrow(); |
| 876 | } catch (NullPointerException success) {} |
| 877 | } |
| 878 | |
| 879 | /** |
| 880 | * Constructor throws if corePoolSize argument is less than zero |
| 881 | */ |
| 882 | public void testConstructor16() { |
| 883 | try { |
| 884 | new ThreadPoolExecutor(-1, 1, |
| 885 | LONG_DELAY_MS, MILLISECONDS, |
| 886 | new ArrayBlockingQueue<Runnable>(10), |
| 887 | new SimpleThreadFactory(), |
| 888 | new NoOpREHandler()); |
| 889 | shouldThrow(); |
| 890 | } catch (IllegalArgumentException success) {} |
| 891 | } |
| 892 | |
| 893 | /** |
| 894 | * Constructor throws if maximumPoolSize is less than zero |
| 895 | */ |
| 896 | public void testConstructor17() { |
| 897 | try { |
| 898 | new ThreadPoolExecutor(1, -1, |
| 899 | LONG_DELAY_MS, MILLISECONDS, |
| 900 | new ArrayBlockingQueue<Runnable>(10), |
| 901 | new SimpleThreadFactory(), |
| 902 | new NoOpREHandler()); |
| 903 | shouldThrow(); |
| 904 | } catch (IllegalArgumentException success) {} |
| 905 | } |
| 906 | |
| 907 | /** |
| 908 | * Constructor throws if maximumPoolSize is equal to zero |
| 909 | */ |
| 910 | public void testConstructor18() { |
| 911 | try { |
| 912 | new ThreadPoolExecutor(1, 0, |
| 913 | LONG_DELAY_MS, MILLISECONDS, |
| 914 | new ArrayBlockingQueue<Runnable>(10), |
| 915 | new SimpleThreadFactory(), |
| 916 | new NoOpREHandler()); |
| 917 | shouldThrow(); |
| 918 | } catch (IllegalArgumentException success) {} |
| 919 | } |
| 920 | |
| 921 | /** |
| 922 | * Constructor throws if keepAliveTime is less than zero |
| 923 | */ |
| 924 | public void testConstructor19() { |
| 925 | try { |
| 926 | new ThreadPoolExecutor(1, 2, |
| 927 | -1L, MILLISECONDS, |
| 928 | new ArrayBlockingQueue<Runnable>(10), |
| 929 | new SimpleThreadFactory(), |
| 930 | new NoOpREHandler()); |
| 931 | shouldThrow(); |
| 932 | } catch (IllegalArgumentException success) {} |
| 933 | } |
| 934 | |
| 935 | /** |
| 936 | * Constructor throws if corePoolSize is greater than the maximumPoolSize |
| 937 | */ |
| 938 | public void testConstructor20() { |
| 939 | try { |
| 940 | new ThreadPoolExecutor(2, 1, |
| 941 | LONG_DELAY_MS, MILLISECONDS, |
| 942 | new ArrayBlockingQueue<Runnable>(10), |
| 943 | new SimpleThreadFactory(), |
| 944 | new NoOpREHandler()); |
| 945 | shouldThrow(); |
| 946 | } catch (IllegalArgumentException success) {} |
| 947 | } |
| 948 | |
| 949 | /** |
| 950 | * Constructor throws if workQueue is null |
| 951 | */ |
| 952 | public void testConstructorNullPointerException6() { |
| 953 | try { |
| 954 | new ThreadPoolExecutor(1, 2, |
| 955 | LONG_DELAY_MS, MILLISECONDS, |
| 956 | (BlockingQueue) null, |
| 957 | new SimpleThreadFactory(), |
| 958 | new NoOpREHandler()); |
| 959 | shouldThrow(); |
| 960 | } catch (NullPointerException success) {} |
| 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Constructor throws if handler is null |
| 965 | */ |
| 966 | public void testConstructorNullPointerException7() { |
| 967 | try { |
| 968 | new ThreadPoolExecutor(1, 2, |
| 969 | LONG_DELAY_MS, MILLISECONDS, |
| 970 | new ArrayBlockingQueue<Runnable>(10), |
| 971 | new SimpleThreadFactory(), |
| 972 | (RejectedExecutionHandler) null); |
| 973 | shouldThrow(); |
| 974 | } catch (NullPointerException success) {} |
| 975 | } |
| 976 | |
| 977 | /** |
| 978 | * Constructor throws if ThreadFactory is null |
| 979 | */ |
| 980 | public void testConstructorNullPointerException8() { |
| 981 | try { |
| 982 | new ThreadPoolExecutor(1, 2, |
| 983 | LONG_DELAY_MS, MILLISECONDS, |
| 984 | new ArrayBlockingQueue<Runnable>(10), |
| 985 | (ThreadFactory) null, |
| 986 | new NoOpREHandler()); |
| 987 | shouldThrow(); |
| 988 | } catch (NullPointerException success) {} |
| 989 | } |
| 990 | |
| 991 | /** |
| 992 | * get of submitted callable throws InterruptedException if interrupted |
| 993 | */ |
| 994 | public void testInterruptedSubmit() throws InterruptedException { |
| 995 | final ThreadPoolExecutor p = |
| 996 | new ThreadPoolExecutor(1, 1, |
| 997 | 60, TimeUnit.SECONDS, |
| 998 | new ArrayBlockingQueue<Runnable>(10)); |
| 999 | |
| 1000 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 1001 | final CountDownLatch done = new CountDownLatch(1); |
| 1002 | try { |
| 1003 | Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
| 1004 | public void realRun() throws Exception { |
| 1005 | Callable task = new CheckedCallable<Boolean>() { |
| 1006 | public Boolean realCall() throws InterruptedException { |
| 1007 | threadStarted.countDown(); |
| 1008 | done.await(); |
| 1009 | return Boolean.TRUE; |
| 1010 | }}; |
| 1011 | p.submit(task).get(); |
| 1012 | }}); |
| 1013 | |
| 1014 | assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
| 1015 | t.interrupt(); |
| 1016 | awaitTermination(t, MEDIUM_DELAY_MS); |
| 1017 | } finally { |
| 1018 | done.countDown(); |
| 1019 | joinPool(p); |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | /** |
| 1024 | * execute throws RejectedExecutionException if saturated. |
| 1025 | */ |
| 1026 | public void testSaturatedExecute() { |
| 1027 | ThreadPoolExecutor p = |
| 1028 | new ThreadPoolExecutor(1, 1, |
| 1029 | LONG_DELAY_MS, MILLISECONDS, |
| 1030 | new ArrayBlockingQueue<Runnable>(1)); |
| 1031 | final CountDownLatch done = new CountDownLatch(1); |
| 1032 | try { |
| 1033 | Runnable task = new CheckedRunnable() { |
| 1034 | public void realRun() throws InterruptedException { |
| 1035 | done.await(); |
| 1036 | }}; |
| 1037 | for (int i = 0; i < 2; ++i) |
| 1038 | p.execute(task); |
| 1039 | for (int i = 0; i < 2; ++i) { |
| 1040 | try { |
| 1041 | p.execute(task); |
| 1042 | shouldThrow(); |
| 1043 | } catch (RejectedExecutionException success) {} |
| 1044 | assertTrue(p.getTaskCount() <= 2); |
| 1045 | } |
| 1046 | } finally { |
| 1047 | done.countDown(); |
| 1048 | joinPool(p); |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | /** |
| 1053 | * submit(runnable) throws RejectedExecutionException if saturated. |
| 1054 | */ |
| 1055 | public void testSaturatedSubmitRunnable() { |
| 1056 | ThreadPoolExecutor p = |
| 1057 | new ThreadPoolExecutor(1, 1, |
| 1058 | LONG_DELAY_MS, MILLISECONDS, |
| 1059 | new ArrayBlockingQueue<Runnable>(1)); |
| 1060 | final CountDownLatch done = new CountDownLatch(1); |
| 1061 | try { |
| 1062 | Runnable task = new CheckedRunnable() { |
| 1063 | public void realRun() throws InterruptedException { |
| 1064 | done.await(); |
| 1065 | }}; |
| 1066 | for (int i = 0; i < 2; ++i) |
| 1067 | p.submit(task); |
| 1068 | for (int i = 0; i < 2; ++i) { |
| 1069 | try { |
| 1070 | p.execute(task); |
| 1071 | shouldThrow(); |
| 1072 | } catch (RejectedExecutionException success) {} |
| 1073 | assertTrue(p.getTaskCount() <= 2); |
| 1074 | } |
| 1075 | } finally { |
| 1076 | done.countDown(); |
| 1077 | joinPool(p); |
| 1078 | } |
| 1079 | } |
| 1080 | |
| 1081 | /** |
| 1082 | * submit(callable) throws RejectedExecutionException if saturated. |
| 1083 | */ |
| 1084 | public void testSaturatedSubmitCallable() { |
| 1085 | ThreadPoolExecutor p = |
| 1086 | new ThreadPoolExecutor(1, 1, |
| 1087 | LONG_DELAY_MS, MILLISECONDS, |
| 1088 | new ArrayBlockingQueue<Runnable>(1)); |
| 1089 | final CountDownLatch done = new CountDownLatch(1); |
| 1090 | try { |
| 1091 | Runnable task = new CheckedRunnable() { |
| 1092 | public void realRun() throws InterruptedException { |
| 1093 | done.await(); |
| 1094 | }}; |
| 1095 | for (int i = 0; i < 2; ++i) |
| 1096 | p.submit(Executors.callable(task)); |
| 1097 | for (int i = 0; i < 2; ++i) { |
| 1098 | try { |
| 1099 | p.execute(task); |
| 1100 | shouldThrow(); |
| 1101 | } catch (RejectedExecutionException success) {} |
| 1102 | assertTrue(p.getTaskCount() <= 2); |
| 1103 | } |
| 1104 | } finally { |
| 1105 | done.countDown(); |
| 1106 | joinPool(p); |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | /** |
| 1111 | * executor using CallerRunsPolicy runs task if saturated. |
| 1112 | */ |
| 1113 | public void testSaturatedExecute2() { |
| 1114 | RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
| 1115 | final ThreadPoolExecutor p = |
| 1116 | new ThreadPoolExecutor(1, 1, |
| 1117 | LONG_DELAY_MS, |
| 1118 | MILLISECONDS, |
| 1119 | new ArrayBlockingQueue<Runnable>(1), |
| 1120 | h); |
| 1121 | try { |
| 1122 | TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
| 1123 | for (int i = 0; i < tasks.length; ++i) |
| 1124 | tasks[i] = new TrackedNoOpRunnable(); |
| 1125 | TrackedLongRunnable mr = new TrackedLongRunnable(); |
| 1126 | p.execute(mr); |
| 1127 | for (int i = 0; i < tasks.length; ++i) |
| 1128 | p.execute(tasks[i]); |
| 1129 | for (int i = 1; i < tasks.length; ++i) |
| 1130 | assertTrue(tasks[i].done); |
| 1131 | try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
| 1132 | } finally { |
| 1133 | joinPool(p); |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * executor using DiscardPolicy drops task if saturated. |
| 1139 | */ |
| 1140 | public void testSaturatedExecute3() { |
| 1141 | RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
| 1142 | final ThreadPoolExecutor p = |
| 1143 | new ThreadPoolExecutor(1, 1, |
| 1144 | LONG_DELAY_MS, MILLISECONDS, |
| 1145 | new ArrayBlockingQueue<Runnable>(1), |
| 1146 | h); |
| 1147 | try { |
| 1148 | TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
| 1149 | for (int i = 0; i < tasks.length; ++i) |
| 1150 | tasks[i] = new TrackedNoOpRunnable(); |
| 1151 | p.execute(new TrackedLongRunnable()); |
| 1152 | for (TrackedNoOpRunnable task : tasks) |
| 1153 | p.execute(task); |
| 1154 | for (TrackedNoOpRunnable task : tasks) |
| 1155 | assertFalse(task.done); |
| 1156 | try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
| 1157 | } finally { |
| 1158 | joinPool(p); |
| 1159 | } |
| 1160 | } |
| 1161 | |
| 1162 | /** |
| 1163 | * executor using DiscardOldestPolicy drops oldest task if saturated. |
| 1164 | */ |
| 1165 | public void testSaturatedExecute4() { |
| 1166 | RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
| 1167 | final ThreadPoolExecutor p = |
| 1168 | new ThreadPoolExecutor(1, 1, |
| 1169 | LONG_DELAY_MS, MILLISECONDS, |
| 1170 | new ArrayBlockingQueue<Runnable>(1), |
| 1171 | h); |
| 1172 | try { |
| 1173 | p.execute(new TrackedLongRunnable()); |
| 1174 | TrackedLongRunnable r2 = new TrackedLongRunnable(); |
| 1175 | p.execute(r2); |
| 1176 | assertTrue(p.getQueue().contains(r2)); |
| 1177 | TrackedNoOpRunnable r3 = new TrackedNoOpRunnable(); |
| 1178 | p.execute(r3); |
| 1179 | assertFalse(p.getQueue().contains(r2)); |
| 1180 | assertTrue(p.getQueue().contains(r3)); |
| 1181 | try { p.shutdownNow(); } catch (SecurityException ok) { return; } |
| 1182 | } finally { |
| 1183 | joinPool(p); |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | /** |
| 1188 | * execute throws RejectedExecutionException if shutdown |
| 1189 | */ |
| 1190 | public void testRejectedExecutionExceptionOnShutdown() { |
| 1191 | ThreadPoolExecutor p = |
| 1192 | new ThreadPoolExecutor(1, 1, |
| 1193 | LONG_DELAY_MS, MILLISECONDS, |
| 1194 | new ArrayBlockingQueue<Runnable>(1)); |
| 1195 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1196 | try { |
| 1197 | p.execute(new NoOpRunnable()); |
| 1198 | shouldThrow(); |
| 1199 | } catch (RejectedExecutionException success) {} |
| 1200 | |
| 1201 | joinPool(p); |
| 1202 | } |
| 1203 | |
| 1204 | /** |
| 1205 | * execute using CallerRunsPolicy drops task on shutdown |
| 1206 | */ |
| 1207 | public void testCallerRunsOnShutdown() { |
| 1208 | RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy(); |
| 1209 | final ThreadPoolExecutor p = |
| 1210 | new ThreadPoolExecutor(1, 1, |
| 1211 | LONG_DELAY_MS, MILLISECONDS, |
| 1212 | new ArrayBlockingQueue<Runnable>(1), h); |
| 1213 | |
| 1214 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1215 | try { |
| 1216 | TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
| 1217 | p.execute(r); |
| 1218 | assertFalse(r.done); |
| 1219 | } finally { |
| 1220 | joinPool(p); |
| 1221 | } |
| 1222 | } |
| 1223 | |
| 1224 | /** |
| 1225 | * execute using DiscardPolicy drops task on shutdown |
| 1226 | */ |
| 1227 | public void testDiscardOnShutdown() { |
| 1228 | RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy(); |
| 1229 | ThreadPoolExecutor p = |
| 1230 | new ThreadPoolExecutor(1, 1, |
| 1231 | LONG_DELAY_MS, MILLISECONDS, |
| 1232 | new ArrayBlockingQueue<Runnable>(1), |
| 1233 | h); |
| 1234 | |
| 1235 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1236 | try { |
| 1237 | TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
| 1238 | p.execute(r); |
| 1239 | assertFalse(r.done); |
| 1240 | } finally { |
| 1241 | joinPool(p); |
| 1242 | } |
| 1243 | } |
| 1244 | |
| 1245 | /** |
| 1246 | * execute using DiscardOldestPolicy drops task on shutdown |
| 1247 | */ |
| 1248 | public void testDiscardOldestOnShutdown() { |
| 1249 | RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy(); |
| 1250 | ThreadPoolExecutor p = |
| 1251 | new ThreadPoolExecutor(1, 1, |
| 1252 | LONG_DELAY_MS, MILLISECONDS, |
| 1253 | new ArrayBlockingQueue<Runnable>(1), |
| 1254 | h); |
| 1255 | |
| 1256 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1257 | try { |
| 1258 | TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
| 1259 | p.execute(r); |
| 1260 | assertFalse(r.done); |
| 1261 | } finally { |
| 1262 | joinPool(p); |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | /** |
| 1267 | * execute(null) throws NPE |
| 1268 | */ |
| 1269 | public void testExecuteNull() { |
| 1270 | ThreadPoolExecutor p = |
| 1271 | new ThreadPoolExecutor(1, 2, |
| 1272 | LONG_DELAY_MS, MILLISECONDS, |
| 1273 | new ArrayBlockingQueue<Runnable>(10)); |
| 1274 | try { |
| 1275 | p.execute(null); |
| 1276 | shouldThrow(); |
| 1277 | } catch (NullPointerException success) {} |
| 1278 | |
| 1279 | joinPool(p); |
| 1280 | } |
| 1281 | |
| 1282 | /** |
| 1283 | * setCorePoolSize of negative value throws IllegalArgumentException |
| 1284 | */ |
| 1285 | public void testCorePoolSizeIllegalArgumentException() { |
| 1286 | ThreadPoolExecutor p = |
| 1287 | new ThreadPoolExecutor(1, 2, |
| 1288 | LONG_DELAY_MS, MILLISECONDS, |
| 1289 | new ArrayBlockingQueue<Runnable>(10)); |
| 1290 | try { |
| 1291 | p.setCorePoolSize(-1); |
| 1292 | shouldThrow(); |
| 1293 | } catch (IllegalArgumentException success) { |
| 1294 | } finally { |
| 1295 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1296 | } |
| 1297 | joinPool(p); |
| 1298 | } |
| 1299 | |
| 1300 | /** |
| 1301 | * setMaximumPoolSize(int) throws IllegalArgumentException if |
| 1302 | * given a value less the core pool size |
| 1303 | */ |
| 1304 | public void testMaximumPoolSizeIllegalArgumentException() { |
| 1305 | ThreadPoolExecutor p = |
| 1306 | new ThreadPoolExecutor(2, 3, |
| 1307 | LONG_DELAY_MS, MILLISECONDS, |
| 1308 | new ArrayBlockingQueue<Runnable>(10)); |
| 1309 | try { |
| 1310 | p.setMaximumPoolSize(1); |
| 1311 | shouldThrow(); |
| 1312 | } catch (IllegalArgumentException success) { |
| 1313 | } finally { |
| 1314 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1315 | } |
| 1316 | joinPool(p); |
| 1317 | } |
| 1318 | |
| 1319 | /** |
| 1320 | * setMaximumPoolSize throws IllegalArgumentException |
| 1321 | * if given a negative value |
| 1322 | */ |
| 1323 | public void testMaximumPoolSizeIllegalArgumentException2() { |
| 1324 | ThreadPoolExecutor p = |
| 1325 | new ThreadPoolExecutor(2, 3, |
| 1326 | LONG_DELAY_MS, MILLISECONDS, |
| 1327 | new ArrayBlockingQueue<Runnable>(10)); |
| 1328 | try { |
| 1329 | p.setMaximumPoolSize(-1); |
| 1330 | shouldThrow(); |
| 1331 | } catch (IllegalArgumentException success) { |
| 1332 | } finally { |
| 1333 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1334 | } |
| 1335 | joinPool(p); |
| 1336 | } |
| 1337 | |
| 1338 | /** |
| 1339 | * setKeepAliveTime throws IllegalArgumentException |
| 1340 | * when given a negative value |
| 1341 | */ |
| 1342 | public void testKeepAliveTimeIllegalArgumentException() { |
| 1343 | ThreadPoolExecutor p = |
| 1344 | new ThreadPoolExecutor(2, 3, |
| 1345 | LONG_DELAY_MS, MILLISECONDS, |
| 1346 | new ArrayBlockingQueue<Runnable>(10)); |
| 1347 | try { |
| 1348 | p.setKeepAliveTime(-1,MILLISECONDS); |
| 1349 | shouldThrow(); |
| 1350 | } catch (IllegalArgumentException success) { |
| 1351 | } finally { |
| 1352 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1353 | } |
| 1354 | joinPool(p); |
| 1355 | } |
| 1356 | |
| 1357 | /** |
| 1358 | * terminated() is called on termination |
| 1359 | */ |
| 1360 | public void testTerminated() { |
| 1361 | ExtendedTPE p = new ExtendedTPE(); |
| 1362 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1363 | assertTrue(p.terminatedCalled()); |
| 1364 | joinPool(p); |
| 1365 | } |
| 1366 | |
| 1367 | /** |
| 1368 | * beforeExecute and afterExecute are called when executing task |
| 1369 | */ |
| 1370 | public void testBeforeAfter() throws InterruptedException { |
| 1371 | ExtendedTPE p = new ExtendedTPE(); |
| 1372 | try { |
| 1373 | final CountDownLatch done = new CountDownLatch(1); |
| 1374 | final CheckedRunnable task = new CheckedRunnable() { |
| 1375 | public void realRun() { |
| 1376 | done.countDown(); |
| 1377 | }}; |
| 1378 | p.execute(task); |
| 1379 | await(p.afterCalled); |
| 1380 | assertEquals(0, done.getCount()); |
| 1381 | assertTrue(p.afterCalled()); |
| 1382 | assertTrue(p.beforeCalled()); |
| 1383 | try { p.shutdown(); } catch (SecurityException ok) { return; } |
| 1384 | } finally { |
| 1385 | joinPool(p); |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | /** |
| 1390 | * completed submit of callable returns result |
| 1391 | */ |
| 1392 | public void testSubmitCallable() throws Exception { |
| 1393 | ExecutorService e = |
| 1394 | new ThreadPoolExecutor(2, 2, |
| 1395 | LONG_DELAY_MS, MILLISECONDS, |
| 1396 | new ArrayBlockingQueue<Runnable>(10)); |
| 1397 | try { |
| 1398 | Future<String> future = e.submit(new StringTask()); |
| 1399 | String result = future.get(); |
| 1400 | assertSame(TEST_STRING, result); |
| 1401 | } finally { |
| 1402 | joinPool(e); |
| 1403 | } |
| 1404 | } |
| 1405 | |
| 1406 | /** |
| 1407 | * completed submit of runnable returns successfully |
| 1408 | */ |
| 1409 | public void testSubmitRunnable() throws Exception { |
| 1410 | ExecutorService e = |
| 1411 | new ThreadPoolExecutor(2, 2, |
| 1412 | LONG_DELAY_MS, MILLISECONDS, |
| 1413 | new ArrayBlockingQueue<Runnable>(10)); |
| 1414 | try { |
| 1415 | Future<?> future = e.submit(new NoOpRunnable()); |
| 1416 | future.get(); |
| 1417 | assertTrue(future.isDone()); |
| 1418 | } finally { |
| 1419 | joinPool(e); |
| 1420 | } |
| 1421 | } |
| 1422 | |
| 1423 | /** |
| 1424 | * completed submit of (runnable, result) returns result |
| 1425 | */ |
| 1426 | public void testSubmitRunnable2() throws Exception { |
| 1427 | ExecutorService e = |
| 1428 | new ThreadPoolExecutor(2, 2, |
| 1429 | LONG_DELAY_MS, MILLISECONDS, |
| 1430 | new ArrayBlockingQueue<Runnable>(10)); |
| 1431 | try { |
| 1432 | Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
| 1433 | String result = future.get(); |
| 1434 | assertSame(TEST_STRING, result); |
| 1435 | } finally { |
| 1436 | joinPool(e); |
| 1437 | } |
| 1438 | } |
| 1439 | |
| 1440 | /** |
| 1441 | * invokeAny(null) throws NPE |
| 1442 | */ |
| 1443 | public void testInvokeAny1() throws Exception { |
| 1444 | ExecutorService e = |
| 1445 | new ThreadPoolExecutor(2, 2, |
| 1446 | LONG_DELAY_MS, MILLISECONDS, |
| 1447 | new ArrayBlockingQueue<Runnable>(10)); |
| 1448 | try { |
| 1449 | e.invokeAny(null); |
| 1450 | shouldThrow(); |
| 1451 | } catch (NullPointerException success) { |
| 1452 | } finally { |
| 1453 | joinPool(e); |
| 1454 | } |
| 1455 | } |
| 1456 | |
| 1457 | /** |
| 1458 | * invokeAny(empty collection) throws IAE |
| 1459 | */ |
| 1460 | public void testInvokeAny2() throws Exception { |
| 1461 | ExecutorService e = |
| 1462 | new ThreadPoolExecutor(2, 2, |
| 1463 | LONG_DELAY_MS, MILLISECONDS, |
| 1464 | new ArrayBlockingQueue<Runnable>(10)); |
| 1465 | try { |
| 1466 | e.invokeAny(new ArrayList<Callable<String>>()); |
| 1467 | shouldThrow(); |
| 1468 | } catch (IllegalArgumentException success) { |
| 1469 | } finally { |
| 1470 | joinPool(e); |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | /** |
| 1475 | * invokeAny(c) throws NPE if c has null elements |
| 1476 | */ |
| 1477 | public void testInvokeAny3() throws Exception { |
| 1478 | final CountDownLatch latch = new CountDownLatch(1); |
| 1479 | final ExecutorService e = |
| 1480 | new ThreadPoolExecutor(2, 2, |
| 1481 | LONG_DELAY_MS, MILLISECONDS, |
| 1482 | new ArrayBlockingQueue<Runnable>(10)); |
| 1483 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1484 | l.add(latchAwaitingStringTask(latch)); |
| 1485 | l.add(null); |
| 1486 | try { |
| 1487 | e.invokeAny(l); |
| 1488 | shouldThrow(); |
| 1489 | } catch (NullPointerException success) { |
| 1490 | } finally { |
| 1491 | latch.countDown(); |
| 1492 | joinPool(e); |
| 1493 | } |
| 1494 | } |
| 1495 | |
| 1496 | /** |
| 1497 | * invokeAny(c) throws ExecutionException if no task completes |
| 1498 | */ |
| 1499 | public void testInvokeAny4() throws Exception { |
| 1500 | ExecutorService e = |
| 1501 | new ThreadPoolExecutor(2, 2, |
| 1502 | LONG_DELAY_MS, MILLISECONDS, |
| 1503 | new ArrayBlockingQueue<Runnable>(10)); |
| 1504 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1505 | l.add(new NPETask()); |
| 1506 | try { |
| 1507 | e.invokeAny(l); |
| 1508 | shouldThrow(); |
| 1509 | } catch (ExecutionException success) { |
| 1510 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1511 | } finally { |
| 1512 | joinPool(e); |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | /** |
| 1517 | * invokeAny(c) returns result of some task |
| 1518 | */ |
| 1519 | public void testInvokeAny5() throws Exception { |
| 1520 | ExecutorService e = |
| 1521 | new ThreadPoolExecutor(2, 2, |
| 1522 | LONG_DELAY_MS, MILLISECONDS, |
| 1523 | new ArrayBlockingQueue<Runnable>(10)); |
| 1524 | try { |
| 1525 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1526 | l.add(new StringTask()); |
| 1527 | l.add(new StringTask()); |
| 1528 | String result = e.invokeAny(l); |
| 1529 | assertSame(TEST_STRING, result); |
| 1530 | } finally { |
| 1531 | joinPool(e); |
| 1532 | } |
| 1533 | } |
| 1534 | |
| 1535 | /** |
| 1536 | * invokeAll(null) throws NPE |
| 1537 | */ |
| 1538 | public void testInvokeAll1() throws Exception { |
| 1539 | ExecutorService e = |
| 1540 | new ThreadPoolExecutor(2, 2, |
| 1541 | LONG_DELAY_MS, MILLISECONDS, |
| 1542 | new ArrayBlockingQueue<Runnable>(10)); |
| 1543 | try { |
| 1544 | e.invokeAll(null); |
| 1545 | shouldThrow(); |
| 1546 | } catch (NullPointerException success) { |
| 1547 | } finally { |
| 1548 | joinPool(e); |
| 1549 | } |
| 1550 | } |
| 1551 | |
| 1552 | /** |
| 1553 | * invokeAll(empty collection) returns empty collection |
| 1554 | */ |
| 1555 | public void testInvokeAll2() throws InterruptedException { |
| 1556 | ExecutorService e = |
| 1557 | new ThreadPoolExecutor(2, 2, |
| 1558 | LONG_DELAY_MS, MILLISECONDS, |
| 1559 | new ArrayBlockingQueue<Runnable>(10)); |
| 1560 | try { |
| 1561 | List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
| 1562 | assertTrue(r.isEmpty()); |
| 1563 | } finally { |
| 1564 | joinPool(e); |
| 1565 | } |
| 1566 | } |
| 1567 | |
| 1568 | /** |
| 1569 | * invokeAll(c) throws NPE if c has null elements |
| 1570 | */ |
| 1571 | public void testInvokeAll3() throws Exception { |
| 1572 | ExecutorService e = |
| 1573 | new ThreadPoolExecutor(2, 2, |
| 1574 | LONG_DELAY_MS, MILLISECONDS, |
| 1575 | new ArrayBlockingQueue<Runnable>(10)); |
| 1576 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1577 | l.add(new StringTask()); |
| 1578 | l.add(null); |
| 1579 | try { |
| 1580 | e.invokeAll(l); |
| 1581 | shouldThrow(); |
| 1582 | } catch (NullPointerException success) { |
| 1583 | } finally { |
| 1584 | joinPool(e); |
| 1585 | } |
| 1586 | } |
| 1587 | |
| 1588 | /** |
| 1589 | * get of element of invokeAll(c) throws exception on failed task |
| 1590 | */ |
| 1591 | public void testInvokeAll4() throws Exception { |
| 1592 | ExecutorService e = |
| 1593 | new ThreadPoolExecutor(2, 2, |
| 1594 | LONG_DELAY_MS, MILLISECONDS, |
| 1595 | new ArrayBlockingQueue<Runnable>(10)); |
| 1596 | try { |
| 1597 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1598 | l.add(new NPETask()); |
| 1599 | List<Future<String>> futures = e.invokeAll(l); |
| 1600 | assertEquals(1, futures.size()); |
| 1601 | try { |
| 1602 | futures.get(0).get(); |
| 1603 | shouldThrow(); |
| 1604 | } catch (ExecutionException success) { |
| 1605 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1606 | } |
| 1607 | } finally { |
| 1608 | joinPool(e); |
| 1609 | } |
| 1610 | } |
| 1611 | |
| 1612 | /** |
| 1613 | * invokeAll(c) returns results of all completed tasks |
| 1614 | */ |
| 1615 | public void testInvokeAll5() throws Exception { |
| 1616 | ExecutorService e = |
| 1617 | new ThreadPoolExecutor(2, 2, |
| 1618 | LONG_DELAY_MS, MILLISECONDS, |
| 1619 | new ArrayBlockingQueue<Runnable>(10)); |
| 1620 | try { |
| 1621 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1622 | l.add(new StringTask()); |
| 1623 | l.add(new StringTask()); |
| 1624 | List<Future<String>> futures = e.invokeAll(l); |
| 1625 | assertEquals(2, futures.size()); |
| 1626 | for (Future<String> future : futures) |
| 1627 | assertSame(TEST_STRING, future.get()); |
| 1628 | } finally { |
| 1629 | joinPool(e); |
| 1630 | } |
| 1631 | } |
| 1632 | |
| 1633 | /** |
| 1634 | * timed invokeAny(null) throws NPE |
| 1635 | */ |
| 1636 | public void testTimedInvokeAny1() throws Exception { |
| 1637 | ExecutorService e = |
| 1638 | new ThreadPoolExecutor(2, 2, |
| 1639 | LONG_DELAY_MS, MILLISECONDS, |
| 1640 | new ArrayBlockingQueue<Runnable>(10)); |
| 1641 | try { |
| 1642 | e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1643 | shouldThrow(); |
| 1644 | } catch (NullPointerException success) { |
| 1645 | } finally { |
| 1646 | joinPool(e); |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | /** |
| 1651 | * timed invokeAny(,,null) throws NPE |
| 1652 | */ |
| 1653 | public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
| 1654 | ExecutorService e = |
| 1655 | new ThreadPoolExecutor(2, 2, |
| 1656 | LONG_DELAY_MS, MILLISECONDS, |
| 1657 | new ArrayBlockingQueue<Runnable>(10)); |
| 1658 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1659 | l.add(new StringTask()); |
| 1660 | try { |
| 1661 | e.invokeAny(l, MEDIUM_DELAY_MS, null); |
| 1662 | shouldThrow(); |
| 1663 | } catch (NullPointerException success) { |
| 1664 | } finally { |
| 1665 | joinPool(e); |
| 1666 | } |
| 1667 | } |
| 1668 | |
| 1669 | /** |
| 1670 | * timed invokeAny(empty collection) throws IAE |
| 1671 | */ |
| 1672 | public void testTimedInvokeAny2() throws Exception { |
| 1673 | ExecutorService e = |
| 1674 | new ThreadPoolExecutor(2, 2, |
| 1675 | LONG_DELAY_MS, MILLISECONDS, |
| 1676 | new ArrayBlockingQueue<Runnable>(10)); |
| 1677 | try { |
| 1678 | e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
| 1679 | shouldThrow(); |
| 1680 | } catch (IllegalArgumentException success) { |
| 1681 | } finally { |
| 1682 | joinPool(e); |
| 1683 | } |
| 1684 | } |
| 1685 | |
| 1686 | /** |
| 1687 | * timed invokeAny(c) throws NPE if c has null elements |
| 1688 | */ |
| 1689 | public void testTimedInvokeAny3() throws Exception { |
| 1690 | final CountDownLatch latch = new CountDownLatch(1); |
| 1691 | final ExecutorService e = |
| 1692 | new ThreadPoolExecutor(2, 2, |
| 1693 | LONG_DELAY_MS, MILLISECONDS, |
| 1694 | new ArrayBlockingQueue<Runnable>(10)); |
| 1695 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1696 | l.add(latchAwaitingStringTask(latch)); |
| 1697 | l.add(null); |
| 1698 | try { |
| 1699 | e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1700 | shouldThrow(); |
| 1701 | } catch (NullPointerException success) { |
| 1702 | } finally { |
| 1703 | latch.countDown(); |
| 1704 | joinPool(e); |
| 1705 | } |
| 1706 | } |
| 1707 | |
| 1708 | /** |
| 1709 | * timed invokeAny(c) throws ExecutionException if no task completes |
| 1710 | */ |
| 1711 | public void testTimedInvokeAny4() throws Exception { |
| 1712 | ExecutorService e = |
| 1713 | new ThreadPoolExecutor(2, 2, |
| 1714 | LONG_DELAY_MS, MILLISECONDS, |
| 1715 | new ArrayBlockingQueue<Runnable>(10)); |
| 1716 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1717 | l.add(new NPETask()); |
| 1718 | try { |
| 1719 | e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1720 | shouldThrow(); |
| 1721 | } catch (ExecutionException success) { |
| 1722 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1723 | } finally { |
| 1724 | joinPool(e); |
| 1725 | } |
| 1726 | } |
| 1727 | |
| 1728 | /** |
| 1729 | * timed invokeAny(c) returns result of some task |
| 1730 | */ |
| 1731 | public void testTimedInvokeAny5() throws Exception { |
| 1732 | ExecutorService e = |
| 1733 | new ThreadPoolExecutor(2, 2, |
| 1734 | LONG_DELAY_MS, MILLISECONDS, |
| 1735 | new ArrayBlockingQueue<Runnable>(10)); |
| 1736 | try { |
| 1737 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1738 | l.add(new StringTask()); |
| 1739 | l.add(new StringTask()); |
| 1740 | String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1741 | assertSame(TEST_STRING, result); |
| 1742 | } finally { |
| 1743 | joinPool(e); |
| 1744 | } |
| 1745 | } |
| 1746 | |
| 1747 | /** |
| 1748 | * timed invokeAll(null) throws NPE |
| 1749 | */ |
| 1750 | public void testTimedInvokeAll1() throws Exception { |
| 1751 | ExecutorService e = |
| 1752 | new ThreadPoolExecutor(2, 2, |
| 1753 | LONG_DELAY_MS, MILLISECONDS, |
| 1754 | new ArrayBlockingQueue<Runnable>(10)); |
| 1755 | try { |
| 1756 | e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1757 | shouldThrow(); |
| 1758 | } catch (NullPointerException success) { |
| 1759 | } finally { |
| 1760 | joinPool(e); |
| 1761 | } |
| 1762 | } |
| 1763 | |
| 1764 | /** |
| 1765 | * timed invokeAll(,,null) throws NPE |
| 1766 | */ |
| 1767 | public void testTimedInvokeAllNullTimeUnit() throws Exception { |
| 1768 | ExecutorService e = |
| 1769 | new ThreadPoolExecutor(2, 2, |
| 1770 | LONG_DELAY_MS, MILLISECONDS, |
| 1771 | new ArrayBlockingQueue<Runnable>(10)); |
| 1772 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1773 | l.add(new StringTask()); |
| 1774 | try { |
| 1775 | e.invokeAll(l, MEDIUM_DELAY_MS, null); |
| 1776 | shouldThrow(); |
| 1777 | } catch (NullPointerException success) { |
| 1778 | } finally { |
| 1779 | joinPool(e); |
| 1780 | } |
| 1781 | } |
| 1782 | |
| 1783 | /** |
| 1784 | * timed invokeAll(empty collection) returns empty collection |
| 1785 | */ |
| 1786 | public void testTimedInvokeAll2() throws InterruptedException { |
| 1787 | ExecutorService e = |
| 1788 | new ThreadPoolExecutor(2, 2, |
| 1789 | LONG_DELAY_MS, MILLISECONDS, |
| 1790 | new ArrayBlockingQueue<Runnable>(10)); |
| 1791 | try { |
| 1792 | List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
| 1793 | assertTrue(r.isEmpty()); |
| 1794 | } finally { |
| 1795 | joinPool(e); |
| 1796 | } |
| 1797 | } |
| 1798 | |
| 1799 | /** |
| 1800 | * timed invokeAll(c) throws NPE if c has null elements |
| 1801 | */ |
| 1802 | public void testTimedInvokeAll3() throws Exception { |
| 1803 | ExecutorService e = |
| 1804 | new ThreadPoolExecutor(2, 2, |
| 1805 | LONG_DELAY_MS, MILLISECONDS, |
| 1806 | new ArrayBlockingQueue<Runnable>(10)); |
| 1807 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1808 | l.add(new StringTask()); |
| 1809 | l.add(null); |
| 1810 | try { |
| 1811 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1812 | shouldThrow(); |
| 1813 | } catch (NullPointerException success) { |
| 1814 | } finally { |
| 1815 | joinPool(e); |
| 1816 | } |
| 1817 | } |
| 1818 | |
| 1819 | /** |
| 1820 | * get of element of invokeAll(c) throws exception on failed task |
| 1821 | */ |
| 1822 | public void testTimedInvokeAll4() throws Exception { |
| 1823 | ExecutorService e = |
| 1824 | new ThreadPoolExecutor(2, 2, |
| 1825 | LONG_DELAY_MS, MILLISECONDS, |
| 1826 | new ArrayBlockingQueue<Runnable>(10)); |
| 1827 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1828 | l.add(new NPETask()); |
| 1829 | List<Future<String>> futures = |
| 1830 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1831 | assertEquals(1, futures.size()); |
| 1832 | try { |
| 1833 | futures.get(0).get(); |
| 1834 | shouldThrow(); |
| 1835 | } catch (ExecutionException success) { |
| 1836 | assertTrue(success.getCause() instanceof NullPointerException); |
| 1837 | } finally { |
| 1838 | joinPool(e); |
| 1839 | } |
| 1840 | } |
| 1841 | |
| 1842 | /** |
| 1843 | * timed invokeAll(c) returns results of all completed tasks |
| 1844 | */ |
| 1845 | public void testTimedInvokeAll5() throws Exception { |
| 1846 | ExecutorService e = |
| 1847 | new ThreadPoolExecutor(2, 2, |
| 1848 | LONG_DELAY_MS, MILLISECONDS, |
| 1849 | new ArrayBlockingQueue<Runnable>(10)); |
| 1850 | try { |
| 1851 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1852 | l.add(new StringTask()); |
| 1853 | l.add(new StringTask()); |
| 1854 | List<Future<String>> futures = |
| 1855 | e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1856 | assertEquals(2, futures.size()); |
| 1857 | for (Future<String> future : futures) |
| 1858 | assertSame(TEST_STRING, future.get()); |
| 1859 | } finally { |
| 1860 | joinPool(e); |
| 1861 | } |
| 1862 | } |
| 1863 | |
| 1864 | /** |
| 1865 | * timed invokeAll(c) cancels tasks not completed by timeout |
| 1866 | */ |
| 1867 | public void testTimedInvokeAll6() throws Exception { |
| 1868 | ExecutorService e = |
| 1869 | new ThreadPoolExecutor(2, 2, |
| 1870 | LONG_DELAY_MS, MILLISECONDS, |
| 1871 | new ArrayBlockingQueue<Runnable>(10)); |
| 1872 | try { |
| 1873 | List<Callable<String>> l = new ArrayList<Callable<String>>(); |
| 1874 | l.add(new StringTask()); |
| 1875 | l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
| 1876 | l.add(new StringTask()); |
| 1877 | List<Future<String>> futures = |
| 1878 | e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS); |
| 1879 | assertEquals(l.size(), futures.size()); |
| 1880 | for (Future future : futures) |
| 1881 | assertTrue(future.isDone()); |
| 1882 | assertFalse(futures.get(0).isCancelled()); |
| 1883 | assertTrue(futures.get(1).isCancelled()); |
| 1884 | } finally { |
| 1885 | joinPool(e); |
| 1886 | } |
| 1887 | } |
| 1888 | |
| 1889 | /** |
| 1890 | * Execution continues if there is at least one thread even if |
| 1891 | * thread factory fails to create more |
| 1892 | */ |
| 1893 | public void testFailingThreadFactory() throws InterruptedException { |
| 1894 | final ExecutorService e = |
| 1895 | new ThreadPoolExecutor(100, 100, |
| 1896 | LONG_DELAY_MS, MILLISECONDS, |
| 1897 | new LinkedBlockingQueue<Runnable>(), |
| 1898 | new FailingThreadFactory()); |
| 1899 | try { |
| 1900 | final int TASKS = 100; |
| 1901 | final CountDownLatch done = new CountDownLatch(TASKS); |
| 1902 | for (int k = 0; k < TASKS; ++k) |
| 1903 | e.execute(new CheckedRunnable() { |
| 1904 | public void realRun() { |
| 1905 | done.countDown(); |
| 1906 | }}); |
| 1907 | assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
| 1908 | } finally { |
| 1909 | joinPool(e); |
| 1910 | } |
| 1911 | } |
| 1912 | |
| 1913 | /** |
| 1914 | * allowsCoreThreadTimeOut is by default false. |
| 1915 | */ |
| 1916 | public void testAllowsCoreThreadTimeOut() { |
| 1917 | final ThreadPoolExecutor p = |
| 1918 | new ThreadPoolExecutor(2, 2, |
| 1919 | 1000, MILLISECONDS, |
| 1920 | new ArrayBlockingQueue<Runnable>(10)); |
| 1921 | assertFalse(p.allowsCoreThreadTimeOut()); |
| 1922 | joinPool(p); |
| 1923 | } |
| 1924 | |
| 1925 | /** |
| 1926 | * allowCoreThreadTimeOut(true) causes idle threads to time out |
| 1927 | */ |
| 1928 | public void testAllowCoreThreadTimeOut_true() throws Exception { |
| 1929 | long coreThreadTimeOut = SHORT_DELAY_MS; |
| 1930 | final ThreadPoolExecutor p = |
| 1931 | new ThreadPoolExecutor(2, 10, |
| 1932 | coreThreadTimeOut, MILLISECONDS, |
| 1933 | new ArrayBlockingQueue<Runnable>(10)); |
| 1934 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 1935 | try { |
| 1936 | p.allowCoreThreadTimeOut(true); |
| 1937 | p.execute(new CheckedRunnable() { |
| 1938 | public void realRun() { |
| 1939 | threadStarted.countDown(); |
| 1940 | assertEquals(1, p.getPoolSize()); |
| 1941 | }}); |
| 1942 | await(threadStarted); |
| 1943 | delay(coreThreadTimeOut); |
| 1944 | long startTime = System.nanoTime(); |
| 1945 | while (p.getPoolSize() > 0 |
| 1946 | && millisElapsedSince(startTime) < LONG_DELAY_MS) |
| 1947 | Thread.yield(); |
| 1948 | assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
| 1949 | assertEquals(0, p.getPoolSize()); |
| 1950 | } finally { |
| 1951 | joinPool(p); |
| 1952 | } |
| 1953 | } |
| 1954 | |
| 1955 | /** |
| 1956 | * allowCoreThreadTimeOut(false) causes idle threads not to time out |
| 1957 | */ |
| 1958 | public void testAllowCoreThreadTimeOut_false() throws Exception { |
| 1959 | long coreThreadTimeOut = SHORT_DELAY_MS; |
| 1960 | final ThreadPoolExecutor p = |
| 1961 | new ThreadPoolExecutor(2, 10, |
| 1962 | coreThreadTimeOut, MILLISECONDS, |
| 1963 | new ArrayBlockingQueue<Runnable>(10)); |
| 1964 | final CountDownLatch threadStarted = new CountDownLatch(1); |
| 1965 | try { |
| 1966 | p.allowCoreThreadTimeOut(false); |
| 1967 | p.execute(new CheckedRunnable() { |
| 1968 | public void realRun() throws InterruptedException { |
| 1969 | threadStarted.countDown(); |
| 1970 | assertTrue(p.getPoolSize() >= 1); |
| 1971 | }}); |
| 1972 | delay(2 * coreThreadTimeOut); |
| 1973 | assertTrue(p.getPoolSize() >= 1); |
| 1974 | } finally { |
| 1975 | joinPool(p); |
| 1976 | } |
| 1977 | } |
| 1978 | |
| 1979 | /** |
| 1980 | * execute allows the same task to be submitted multiple times, even |
| 1981 | * if rejected |
| 1982 | */ |
| 1983 | public void testRejectedRecycledTask() throws InterruptedException { |
| 1984 | final int nTasks = 1000; |
| 1985 | final CountDownLatch done = new CountDownLatch(nTasks); |
| 1986 | final Runnable recycledTask = new Runnable() { |
| 1987 | public void run() { |
| 1988 | done.countDown(); |
| 1989 | }}; |
| 1990 | final ThreadPoolExecutor p = |
| 1991 | new ThreadPoolExecutor(1, 30, 60, TimeUnit.SECONDS, |
| 1992 | new ArrayBlockingQueue(30)); |
| 1993 | try { |
| 1994 | for (int i = 0; i < nTasks; ++i) { |
| 1995 | for (;;) { |
| 1996 | try { |
| 1997 | p.execute(recycledTask); |
| 1998 | break; |
| 1999 | } |
| 2000 | catch (RejectedExecutionException ignore) {} |
| 2001 | } |
| 2002 | } |
| 2003 | // enough time to run all tasks |
| 2004 | assertTrue(done.await(nTasks * SHORT_DELAY_MS, MILLISECONDS)); |
| 2005 | } finally { |
| 2006 | joinPool(p); |
| 2007 | } |
| 2008 | } |
| 2009 | |
| 2010 | } |