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* http://creativecommons.org/publicdomain/zero/1.0/ |
6 |
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*/ |
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|
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< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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< |
import static java.util.concurrent.TimeUnit.SECONDS; |
10 |
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|
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> |
import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.Executor; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.Flow; |
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import static java.util.concurrent.Flow.Publisher; |
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import static java.util.concurrent.Flow.Subscriber; |
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import static java.util.concurrent.Flow.Subscription; |
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import java.util.concurrent.LinkedBlockingQueue; |
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import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.SubmissionPublisher; |
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import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadPoolExecutor; |
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import java.util.concurrent.TimeUnit; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.function.BiConsumer; |
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import java.util.function.BiPredicate; |
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import java.util.function.BiFunction; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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import static java.util.concurrent.Flow.Subscriber; |
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import static java.util.concurrent.Flow.Subscription; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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public class SubmissionPublisherTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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return new TestSuite(SubmissionPublisherTest.class); |
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} |
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|
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// Factory for single thread pool in case commonPool parallelism is zero |
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static final class DaemonThreadFactory implements ThreadFactory { |
42 |
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public Thread newThread(Runnable r) { |
43 |
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Thread t = new Thread(r); |
44 |
< |
t.setDaemon(true); |
45 |
< |
return t; |
46 |
< |
} |
47 |
< |
} |
48 |
< |
|
49 |
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static final Executor basicExecutor = |
50 |
< |
(ForkJoinPool.getCommonPoolParallelism() > 0) ? |
51 |
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ForkJoinPool.commonPool() : |
52 |
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new ThreadPoolExecutor(1, 1, 60, SECONDS, |
53 |
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new LinkedBlockingQueue<Runnable>(), |
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new DaemonThreadFactory()); |
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> |
final Executor basicExecutor = basicPublisher().getExecutor(); |
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|
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static SubmissionPublisher<Integer> basicPublisher() { |
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return new SubmissionPublisher<Integer>(basicExecutor, |
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Flow.defaultBufferSize()); |
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> |
return new SubmissionPublisher<Integer>(); |
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} |
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|
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static class SPException extends RuntimeException {} |
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*/ |
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void checkInitialState(SubmissionPublisher<?> p) { |
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assertFalse(p.hasSubscribers()); |
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assertEquals(p.getNumberOfSubscribers(), 0); |
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assertEquals(0, p.getNumberOfSubscribers()); |
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assertTrue(p.getSubscribers().isEmpty()); |
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assertFalse(p.isClosed()); |
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assertNull(p.getClosedException()); |
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int n = p.getMaxBufferCapacity(); |
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assertTrue((n & (n - 1)) == 0); // power of two |
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assertNotNull(p.getExecutor()); |
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assertEquals(p.estimateMinimumDemand(), 0); |
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assertEquals(p.estimateMaximumLag(), 0); |
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assertEquals(0, p.estimateMinimumDemand()); |
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assertEquals(0, p.estimateMaximumLag()); |
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} |
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|
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/** |
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* A default-constructed SubmissionPublisher has no subscribers, |
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* is not closed, has default buffer size, and uses the |
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* ForkJoinPool.commonPool executor |
146 |
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* defaultExecutor |
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*/ |
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public void testConstructor1() { |
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SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(); |
149 |
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SubmissionPublisher<Integer> p = new SubmissionPublisher<>(); |
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checkInitialState(p); |
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assertSame(p.getExecutor(), ForkJoinPool.commonPool()); |
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assertEquals(p.getMaxBufferCapacity(), Flow.defaultBufferSize()); |
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Executor e = p.getExecutor(), c = ForkJoinPool.commonPool(); |
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if (ForkJoinPool.getCommonPoolParallelism() > 1) |
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assertSame(e, c); |
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else |
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assertNotSame(e, c); |
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} |
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|
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/** |
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*/ |
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public void testConstructor2() { |
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Executor e = Executors.newFixedThreadPool(1); |
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SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(e, 8); |
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SubmissionPublisher<Integer> p = new SubmissionPublisher<>(e, 8); |
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checkInitialState(p); |
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assertSame(p.getExecutor(), e); |
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assertEquals(p.getMaxBufferCapacity(), 8); |
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assertEquals(8, p.getMaxBufferCapacity()); |
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} |
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|
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/** |
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SubmissionPublisher<Integer> p = basicPublisher(); |
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p.subscribe(s); |
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assertTrue(p.hasSubscribers()); |
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assertEquals(p.getNumberOfSubscribers(), 1); |
247 |
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assertEquals(1, p.getNumberOfSubscribers()); |
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assertTrue(p.getSubscribers().contains(s)); |
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assertTrue(p.isSubscribed(s)); |
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s.awaitSubscribe(); |
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assertNotNull(s.sn); |
252 |
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assertEquals(s.nexts, 0); |
253 |
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assertEquals(s.errors, 0); |
254 |
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assertEquals(s.completes, 0); |
252 |
> |
assertEquals(0, s.nexts); |
253 |
> |
assertEquals(0, s.errors); |
254 |
> |
assertEquals(0, s.completes); |
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TestSubscriber s2 = new TestSubscriber(); |
256 |
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p.subscribe(s2); |
257 |
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assertTrue(p.hasSubscribers()); |
258 |
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assertEquals(p.getNumberOfSubscribers(), 2); |
258 |
> |
assertEquals(2, p.getNumberOfSubscribers()); |
259 |
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assertTrue(p.getSubscribers().contains(s)); |
260 |
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assertTrue(p.getSubscribers().contains(s2)); |
261 |
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assertTrue(p.isSubscribed(s)); |
262 |
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assertTrue(p.isSubscribed(s2)); |
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s2.awaitSubscribe(); |
264 |
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assertNotNull(s2.sn); |
265 |
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assertEquals(s2.nexts, 0); |
266 |
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assertEquals(s2.errors, 0); |
267 |
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assertEquals(s2.completes, 0); |
265 |
> |
assertEquals(0, s2.nexts); |
266 |
> |
assertEquals(0, s2.errors); |
267 |
> |
assertEquals(0, s2.completes); |
268 |
> |
p.close(); |
269 |
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} |
270 |
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|
271 |
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/** |
278 |
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p.close(); |
279 |
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p.subscribe(s); |
280 |
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s.awaitComplete(); |
281 |
< |
assertEquals(s.nexts, 0); |
282 |
< |
assertEquals(s.errors, 0); |
283 |
< |
assertEquals(s.completes, 1); |
281 |
> |
assertEquals(0, s.nexts); |
282 |
> |
assertEquals(0, s.errors); |
283 |
> |
assertEquals(1, s.completes, 1); |
284 |
|
} |
285 |
|
|
286 |
|
/** |
296 |
|
assertSame(p.getClosedException(), ex); |
297 |
|
p.subscribe(s); |
298 |
|
s.awaitError(); |
299 |
< |
assertEquals(s.nexts, 0); |
300 |
< |
assertEquals(s.errors, 1); |
299 |
> |
assertEquals(0, s.nexts); |
300 |
> |
assertEquals(1, s.errors); |
301 |
|
} |
302 |
|
|
303 |
|
/** |
309 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
310 |
|
p.subscribe(s); |
311 |
|
assertTrue(p.hasSubscribers()); |
312 |
< |
assertEquals(p.getNumberOfSubscribers(), 1); |
312 |
> |
assertEquals(1, p.getNumberOfSubscribers()); |
313 |
|
assertTrue(p.getSubscribers().contains(s)); |
314 |
|
assertTrue(p.isSubscribed(s)); |
315 |
|
s.awaitSubscribe(); |
316 |
|
assertNotNull(s.sn); |
317 |
< |
assertEquals(s.nexts, 0); |
318 |
< |
assertEquals(s.errors, 0); |
319 |
< |
assertEquals(s.completes, 0); |
317 |
> |
assertEquals(0, s.nexts); |
318 |
> |
assertEquals(0, s.errors); |
319 |
> |
assertEquals(0, s.completes); |
320 |
|
p.subscribe(s); |
321 |
|
s.awaitError(); |
322 |
< |
assertEquals(s.nexts, 0); |
323 |
< |
assertEquals(s.errors, 1); |
322 |
> |
assertEquals(0, s.nexts); |
323 |
> |
assertEquals(1, s.errors); |
324 |
|
assertFalse(p.isSubscribed(s)); |
325 |
|
} |
326 |
|
|
335 |
|
p.subscribe(s); |
336 |
|
} catch (Exception ok) {} |
337 |
|
s.awaitError(); |
338 |
< |
assertEquals(s.nexts, 0); |
339 |
< |
assertEquals(s.errors, 1); |
340 |
< |
assertEquals(s.completes, 0); |
338 |
> |
assertEquals(0, s.nexts); |
339 |
> |
assertEquals(1, s.errors); |
340 |
> |
assertEquals(0, s.completes); |
341 |
|
} |
342 |
|
|
343 |
|
/** |
344 |
< |
* subscribe(null) thows NPE |
344 |
> |
* subscribe(null) throws NPE |
345 |
|
*/ |
346 |
|
public void testSubscribe6() { |
347 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
366 |
|
assertTrue(p.isClosed()); |
367 |
|
assertNull(p.getClosedException()); |
368 |
|
s1.awaitComplete(); |
369 |
< |
assertEquals(s1.nexts, 1); |
370 |
< |
assertEquals(s1.completes, 1); |
369 |
> |
assertEquals(1, s1.nexts); |
370 |
> |
assertEquals(1, s1.completes); |
371 |
|
s2.awaitComplete(); |
372 |
< |
assertEquals(s2.nexts, 1); |
373 |
< |
assertEquals(s2.completes, 1); |
372 |
> |
assertEquals(1, s2.nexts); |
373 |
> |
assertEquals(1, s2.completes); |
374 |
|
} |
375 |
|
|
376 |
|
/** |
377 |
|
* Closing a publisher exceptionally causes onError to subscribers |
378 |
+ |
* after they are subscribed |
379 |
|
*/ |
380 |
|
public void testCloseExceptionallyError() { |
381 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
386 |
|
p.submit(1); |
387 |
|
p.closeExceptionally(new SPException()); |
388 |
|
assertTrue(p.isClosed()); |
389 |
+ |
s1.awaitSubscribe(); |
390 |
|
s1.awaitError(); |
391 |
|
assertTrue(s1.nexts <= 1); |
392 |
< |
assertEquals(s1.errors, 1); |
392 |
> |
assertEquals(1, s1.errors); |
393 |
> |
s2.awaitSubscribe(); |
394 |
|
s2.awaitError(); |
395 |
|
assertTrue(s2.nexts <= 1); |
396 |
< |
assertEquals(s2.errors, 1); |
396 |
> |
assertEquals(1, s2.errors); |
397 |
|
} |
398 |
|
|
399 |
|
/** |
412 |
|
p.submit(i); |
413 |
|
p.close(); |
414 |
|
s2.awaitComplete(); |
415 |
< |
assertEquals(s2.nexts, 20); |
416 |
< |
assertEquals(s2.completes, 1); |
415 |
> |
assertEquals(20, s2.nexts); |
416 |
> |
assertEquals(1, s2.completes); |
417 |
|
assertTrue(s1.nexts < 20); |
418 |
|
assertFalse(p.isSubscribed(s1)); |
419 |
|
} |
433 |
|
p.submit(2); |
434 |
|
p.close(); |
435 |
|
s2.awaitComplete(); |
436 |
< |
assertEquals(s2.nexts, 2); |
436 |
> |
assertEquals(2, s2.nexts); |
437 |
|
s1.awaitComplete(); |
438 |
< |
assertEquals(s1.errors, 1); |
438 |
> |
assertEquals(1, s1.errors); |
439 |
|
} |
440 |
|
|
441 |
|
/** |
442 |
< |
* If a handler is supplied in conctructor, it is invoked when |
442 |
> |
* If a handler is supplied in constructor, it is invoked when |
443 |
|
* subscriber throws an exception in onNext |
444 |
|
*/ |
445 |
|
public void testThrowOnNextHandler() { |
446 |
|
AtomicInteger calls = new AtomicInteger(); |
447 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer> |
448 |
< |
(basicExecutor, 8, |
465 |
< |
(s, e) -> calls.getAndIncrement()); |
447 |
> |
SubmissionPublisher<Integer> p = new SubmissionPublisher<>( |
448 |
> |
basicExecutor, 8, (s, e) -> calls.getAndIncrement()); |
449 |
|
TestSubscriber s1 = new TestSubscriber(); |
450 |
|
TestSubscriber s2 = new TestSubscriber(); |
451 |
|
p.subscribe(s1); |
456 |
|
p.submit(2); |
457 |
|
p.close(); |
458 |
|
s2.awaitComplete(); |
459 |
< |
assertEquals(s2.nexts, 2); |
460 |
< |
assertEquals(s2.completes, 1); |
459 |
> |
assertEquals(2, s2.nexts); |
460 |
> |
assertEquals(1, s2.completes); |
461 |
|
s1.awaitError(); |
462 |
< |
assertEquals(s1.errors, 1); |
463 |
< |
assertEquals(calls.get(), 1); |
462 |
> |
assertEquals(1, s1.errors); |
463 |
> |
assertEquals(1, calls.get()); |
464 |
|
} |
465 |
|
|
466 |
|
/** |
477 |
|
p.close(); |
478 |
|
s2.awaitComplete(); |
479 |
|
s1.awaitComplete(); |
480 |
< |
assertEquals(s2.nexts, 20); |
481 |
< |
assertEquals(s2.completes, 1); |
482 |
< |
assertEquals(s1.nexts, 20); |
483 |
< |
assertEquals(s1.completes, 1); |
480 |
> |
assertEquals(20, s2.nexts); |
481 |
> |
assertEquals(1, s2.completes); |
482 |
> |
assertEquals(20, s1.nexts); |
483 |
> |
assertEquals(1, s1.completes); |
484 |
|
} |
485 |
|
|
486 |
|
/** |
498 |
|
p.submit(1); |
499 |
|
p.submit(2); |
500 |
|
s2.awaitNext(1); |
501 |
< |
assertEquals(s1.nexts, 0); |
501 |
> |
assertEquals(0, s1.nexts); |
502 |
|
s1.sn.request(3); |
503 |
|
p.submit(3); |
504 |
|
p.close(); |
505 |
|
s2.awaitComplete(); |
506 |
< |
assertEquals(s2.nexts, 3); |
507 |
< |
assertEquals(s2.completes, 1); |
506 |
> |
assertEquals(3, s2.nexts); |
507 |
> |
assertEquals(1, s2.completes); |
508 |
|
s1.awaitComplete(); |
509 |
|
assertTrue(s1.nexts > 0); |
510 |
< |
assertEquals(s1.completes, 1); |
510 |
> |
assertEquals(1, s1.completes); |
511 |
|
} |
512 |
|
|
513 |
|
/** |
526 |
|
p.submit(2); |
527 |
|
p.close(); |
528 |
|
s2.awaitComplete(); |
529 |
< |
assertEquals(s2.nexts, 2); |
530 |
< |
assertEquals(s2.completes, 1); |
529 |
> |
assertEquals(2, s2.nexts); |
530 |
> |
assertEquals(1, s2.completes); |
531 |
|
s1.awaitNext(1); |
532 |
< |
assertEquals(s1.nexts, 1); |
532 |
> |
assertEquals(1, s1.nexts); |
533 |
|
} |
534 |
|
|
535 |
|
/** |
548 |
|
p.submit(2); |
549 |
|
p.close(); |
550 |
|
s2.awaitComplete(); |
551 |
< |
assertEquals(s2.nexts, 2); |
552 |
< |
assertEquals(s2.completes, 1); |
551 |
> |
assertEquals(2, s2.nexts); |
552 |
> |
assertEquals(1, s2.completes); |
553 |
|
s1.awaitError(); |
554 |
< |
assertEquals(s1.errors, 1); |
554 |
> |
assertEquals(1, s1.errors); |
555 |
|
assertTrue(s1.lastError instanceof IllegalArgumentException); |
556 |
|
} |
557 |
|
|
565 |
|
s.request = false; |
566 |
|
p.subscribe(s); |
567 |
|
s.awaitSubscribe(); |
568 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
568 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
569 |
|
s.sn.request(1); |
570 |
< |
assertEquals(p.estimateMinimumDemand(), 1); |
570 |
> |
assertEquals(1, p.estimateMinimumDemand()); |
571 |
|
p.submit(1); |
572 |
|
s.awaitNext(1); |
573 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
573 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
574 |
|
} |
575 |
|
|
576 |
|
/** |
578 |
|
*/ |
579 |
|
public void testEmptySubmit() { |
580 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
581 |
< |
assertEquals(p.submit(1), 0); |
581 |
> |
assertEquals(0, p.submit(1)); |
582 |
|
} |
583 |
|
|
584 |
|
/** |
606 |
|
p.subscribe(s2); |
607 |
|
s2.awaitSubscribe(); |
608 |
|
s1.awaitSubscribe(); |
609 |
< |
assertEquals(p.submit(1), 1); |
609 |
> |
assertEquals(1, p.submit(1)); |
610 |
|
assertTrue(p.estimateMaximumLag() >= 1); |
611 |
|
assertTrue(p.submit(2) >= 2); |
612 |
|
assertTrue(p.estimateMaximumLag() >= 2); |
617 |
|
p.submit(4); |
618 |
|
p.close(); |
619 |
|
s2.awaitComplete(); |
620 |
< |
assertEquals(s2.nexts, 4); |
620 |
> |
assertEquals(4, s2.nexts); |
621 |
|
s1.awaitComplete(); |
622 |
< |
assertEquals(s2.nexts, 4); |
622 |
> |
assertEquals(4, s2.nexts); |
623 |
|
} |
624 |
|
|
625 |
|
/** |
626 |
|
* submit eventually issues requested items when buffer capacity is 1 |
627 |
|
*/ |
628 |
|
public void testCap1Submit() { |
629 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
630 |
< |
basicExecutor, 1); |
629 |
> |
SubmissionPublisher<Integer> p |
630 |
> |
= new SubmissionPublisher<>(basicExecutor, 1); |
631 |
|
TestSubscriber s1 = new TestSubscriber(); |
632 |
|
TestSubscriber s2 = new TestSubscriber(); |
633 |
|
p.subscribe(s1); |
639 |
|
p.close(); |
640 |
|
s2.awaitComplete(); |
641 |
|
s1.awaitComplete(); |
642 |
< |
assertEquals(s2.nexts, 20); |
643 |
< |
assertEquals(s2.completes, 1); |
644 |
< |
assertEquals(s1.nexts, 20); |
645 |
< |
assertEquals(s1.completes, 1); |
642 |
> |
assertEquals(20, s2.nexts); |
643 |
> |
assertEquals(1, s2.completes); |
644 |
> |
assertEquals(20, s1.nexts); |
645 |
> |
assertEquals(1, s1.completes); |
646 |
|
} |
647 |
|
|
648 |
|
static boolean noopHandle(AtomicInteger count) { |
696 |
|
p.offer(4, null); |
697 |
|
p.close(); |
698 |
|
s2.awaitComplete(); |
699 |
< |
assertEquals(s2.nexts, 4); |
699 |
> |
assertEquals(4, s2.nexts); |
700 |
|
s1.awaitComplete(); |
701 |
< |
assertEquals(s2.nexts, 4); |
701 |
> |
assertEquals(4, s2.nexts); |
702 |
|
} |
703 |
|
|
704 |
|
/** |
705 |
|
* offer reports drops if saturated |
706 |
|
*/ |
707 |
|
public void testDroppedOffer() { |
708 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
709 |
< |
basicExecutor, 4); |
708 |
> |
SubmissionPublisher<Integer> p |
709 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
710 |
|
TestSubscriber s1 = new TestSubscriber(); |
711 |
|
s1.request = false; |
712 |
|
TestSubscriber s2 = new TestSubscriber(); |
734 |
|
*/ |
735 |
|
public void testHandledDroppedOffer() { |
736 |
|
AtomicInteger calls = new AtomicInteger(); |
737 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
738 |
< |
basicExecutor, 4); |
737 |
> |
SubmissionPublisher<Integer> p |
738 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
739 |
|
TestSubscriber s1 = new TestSubscriber(); |
740 |
|
s1.request = false; |
741 |
|
TestSubscriber s2 = new TestSubscriber(); |
757 |
|
assertTrue(calls.get() >= 4); |
758 |
|
} |
759 |
|
|
777 |
– |
|
760 |
|
/** |
761 |
|
* offer succeeds if drop handler forces request |
762 |
|
*/ |
763 |
|
public void testRecoveredHandledDroppedOffer() { |
764 |
|
AtomicInteger calls = new AtomicInteger(); |
765 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
766 |
< |
basicExecutor, 4); |
765 |
> |
SubmissionPublisher<Integer> p |
766 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
767 |
|
TestSubscriber s1 = new TestSubscriber(); |
768 |
|
s1.request = false; |
769 |
|
TestSubscriber s2 = new TestSubscriber(); |
780 |
|
p.close(); |
781 |
|
s2.awaitComplete(); |
782 |
|
s1.awaitComplete(); |
783 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
783 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
784 |
|
assertTrue(calls.get() >= 2); |
785 |
|
} |
786 |
|
|
805 |
– |
|
787 |
|
/** |
788 |
|
* Timed offer to a publisher with no subscribers returns lag 0 |
789 |
|
*/ |
790 |
|
public void testEmptyTimedOffer() { |
791 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
792 |
+ |
long startTime = System.nanoTime(); |
793 |
|
assertEquals(0, p.offer(1, LONG_DELAY_MS, MILLISECONDS, null)); |
794 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
795 |
|
} |
796 |
|
|
797 |
|
/** |
799 |
|
*/ |
800 |
|
public void testNullTimedOffer() { |
801 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
802 |
+ |
long startTime = System.nanoTime(); |
803 |
|
try { |
804 |
< |
p.offer(null, SHORT_DELAY_MS, MILLISECONDS, null); |
804 |
> |
p.offer(null, LONG_DELAY_MS, MILLISECONDS, null); |
805 |
|
shouldThrow(); |
806 |
|
} catch (NullPointerException success) {} |
807 |
|
try { |
808 |
< |
p.offer(1, SHORT_DELAY_MS, null, null); |
808 |
> |
p.offer(1, LONG_DELAY_MS, null, null); |
809 |
|
shouldThrow(); |
810 |
|
} catch (NullPointerException success) {} |
811 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
812 |
|
} |
813 |
|
|
814 |
|
/** |
824 |
|
p.subscribe(s2); |
825 |
|
s2.awaitSubscribe(); |
826 |
|
s1.awaitSubscribe(); |
827 |
< |
assertTrue(p.offer(1, SHORT_DELAY_MS, MILLISECONDS, null) >= 1); |
828 |
< |
assertTrue(p.offer(2, SHORT_DELAY_MS, MILLISECONDS, null) >= 2); |
827 |
> |
long startTime = System.nanoTime(); |
828 |
> |
assertTrue(p.offer(1, LONG_DELAY_MS, MILLISECONDS, null) >= 1); |
829 |
> |
assertTrue(p.offer(2, LONG_DELAY_MS, MILLISECONDS, null) >= 2); |
830 |
|
s1.sn.request(4); |
831 |
< |
assertTrue(p.offer(3, SHORT_DELAY_MS, MILLISECONDS, null) >= 3); |
831 |
> |
assertTrue(p.offer(3, LONG_DELAY_MS, MILLISECONDS, null) >= 3); |
832 |
|
s2.sn.request(4); |
833 |
< |
p.offer(4, SHORT_DELAY_MS, MILLISECONDS, null); |
833 |
> |
p.offer(4, LONG_DELAY_MS, MILLISECONDS, null); |
834 |
|
p.close(); |
835 |
|
s2.awaitComplete(); |
836 |
< |
assertEquals(s2.nexts, 4); |
836 |
> |
assertEquals(4, s2.nexts); |
837 |
|
s1.awaitComplete(); |
838 |
< |
assertEquals(s2.nexts, 4); |
838 |
> |
assertEquals(4, s2.nexts); |
839 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
840 |
|
} |
841 |
|
|
842 |
|
/** |
843 |
|
* Timed offer reports drops if saturated |
844 |
|
*/ |
845 |
|
public void testDroppedTimedOffer() { |
846 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
847 |
< |
basicExecutor, 4); |
846 |
> |
SubmissionPublisher<Integer> p |
847 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
848 |
|
TestSubscriber s1 = new TestSubscriber(); |
849 |
|
s1.request = false; |
850 |
|
TestSubscriber s2 = new TestSubscriber(); |
853 |
|
p.subscribe(s2); |
854 |
|
s2.awaitSubscribe(); |
855 |
|
s1.awaitSubscribe(); |
856 |
+ |
long delay = timeoutMillis(); |
857 |
|
for (int i = 1; i <= 4; ++i) |
858 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, null) >= 0); |
859 |
< |
p.offer(5, SHORT_DELAY_MS, MILLISECONDS, null); |
860 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
858 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, null) >= 0); |
859 |
> |
long startTime = System.nanoTime(); |
860 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, null) < 0); |
861 |
|
s1.sn.request(64); |
862 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
862 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, null) < 0); |
863 |
> |
// 2 * delay should elapse but check only 1 * delay to allow timer slop |
864 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
865 |
|
s2.sn.request(64); |
866 |
|
p.close(); |
867 |
|
s2.awaitComplete(); |
875 |
|
*/ |
876 |
|
public void testHandledDroppedTimedOffer() { |
877 |
|
AtomicInteger calls = new AtomicInteger(); |
878 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
879 |
< |
basicExecutor, 4); |
878 |
> |
SubmissionPublisher<Integer> p |
879 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
880 |
|
TestSubscriber s1 = new TestSubscriber(); |
881 |
|
s1.request = false; |
882 |
|
TestSubscriber s2 = new TestSubscriber(); |
885 |
|
p.subscribe(s2); |
886 |
|
s2.awaitSubscribe(); |
887 |
|
s1.awaitSubscribe(); |
888 |
+ |
long delay = timeoutMillis(); |
889 |
|
for (int i = 1; i <= 4; ++i) |
890 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
891 |
< |
p.offer(5, (s, x) -> noopHandle(calls)); |
892 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
890 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
891 |
> |
long startTime = System.nanoTime(); |
892 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
893 |
|
s1.sn.request(64); |
894 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
894 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
895 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
896 |
|
s2.sn.request(64); |
897 |
|
p.close(); |
898 |
|
s2.awaitComplete(); |
905 |
|
*/ |
906 |
|
public void testRecoveredHandledDroppedTimedOffer() { |
907 |
|
AtomicInteger calls = new AtomicInteger(); |
908 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
909 |
< |
basicExecutor, 4); |
908 |
> |
SubmissionPublisher<Integer> p |
909 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
910 |
|
TestSubscriber s1 = new TestSubscriber(); |
911 |
|
s1.request = false; |
912 |
|
TestSubscriber s2 = new TestSubscriber(); |
916 |
|
s2.awaitSubscribe(); |
917 |
|
s1.awaitSubscribe(); |
918 |
|
int n = 0; |
919 |
< |
for (int i = 1; i <= 8; ++i) { |
920 |
< |
int d = p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
919 |
> |
long delay = timeoutMillis(); |
920 |
> |
long startTime = System.nanoTime(); |
921 |
> |
for (int i = 1; i <= 6; ++i) { |
922 |
> |
int d = p.offer(i, delay, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
923 |
|
n = n + 2 + (d < 0 ? d : 0); |
924 |
|
} |
925 |
+ |
assertTrue(millisElapsedSince(startTime) >= delay); |
926 |
|
p.close(); |
927 |
|
s2.awaitComplete(); |
928 |
|
s1.awaitComplete(); |
929 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
929 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
930 |
|
assertTrue(calls.get() >= 2); |
931 |
|
} |
932 |
|
|
933 |
+ |
/** |
934 |
+ |
* consume returns a CompletableFuture that is done when |
935 |
+ |
* publisher completes |
936 |
+ |
*/ |
937 |
+ |
public void testConsume() { |
938 |
+ |
AtomicInteger sum = new AtomicInteger(); |
939 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
940 |
+ |
CompletableFuture<Void> f = |
941 |
+ |
p.consume((Integer x) -> sum.getAndAdd(x.intValue())); |
942 |
+ |
int n = 20; |
943 |
+ |
for (int i = 1; i <= n; ++i) |
944 |
+ |
p.submit(i); |
945 |
+ |
p.close(); |
946 |
+ |
f.join(); |
947 |
+ |
assertEquals((n * (n + 1)) / 2, sum.get()); |
948 |
+ |
} |
949 |
+ |
|
950 |
+ |
/** |
951 |
+ |
* consume(null) throws NPE |
952 |
+ |
*/ |
953 |
+ |
public void testConsumeNPE() { |
954 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
955 |
+ |
try { |
956 |
+ |
CompletableFuture<Void> f = p.consume(null); |
957 |
+ |
shouldThrow(); |
958 |
+ |
} catch (NullPointerException success) {} |
959 |
+ |
} |
960 |
+ |
|
961 |
+ |
/** |
962 |
+ |
* consume eventually stops processing published items if cancelled |
963 |
+ |
*/ |
964 |
+ |
public void testCancelledConsume() { |
965 |
+ |
AtomicInteger count = new AtomicInteger(); |
966 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
967 |
+ |
CompletableFuture<Void> f = p.consume(x -> count.getAndIncrement()); |
968 |
+ |
f.cancel(true); |
969 |
+ |
int n = 1000000; // arbitrary limit |
970 |
+ |
for (int i = 1; i <= n; ++i) |
971 |
+ |
p.submit(i); |
972 |
+ |
assertTrue(count.get() < n); |
973 |
+ |
} |
974 |
|
|
975 |
|
} |