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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) { |
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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) ? |
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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()); |
139 |
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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 |
> |
* 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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* A null Executor argument to SubmissionPublisher constructor throws NPE |
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* A null Executor argument to SubmissionPublisher constructor |
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* throws NullPointerException |
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*/ |
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public void testConstructor3() { |
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try { |
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|
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/** |
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* A negative capacity argument to SubmissionPublisher constructor |
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* throws IAE |
184 |
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* throws IllegalArgumentException |
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*/ |
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public void testConstructor4() { |
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Executor e = Executors.newFixedThreadPool(1); |
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|
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/** |
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* A closed publisher reports isClosed with no closedException and |
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* throws ISE upon attempted submission; a subsequent close or |
197 |
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* closeExceptionally has no additional effect. |
196 |
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* throws IllegalStateException upon attempted submission; a |
197 |
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* subsequent close or closeExceptionally has no additional |
198 |
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* effect. |
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*/ |
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public void testClose() { |
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SubmissionPublisher<Integer> p = basicPublisher(); |
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|
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/** |
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* A publisher closedExceptionally reports isClosed with the |
218 |
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* closedException and throws ISE upon attempted submission; a |
219 |
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* subsequent close or closeExceptionally has no additional |
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* effect. |
218 |
> |
* closedException and throws IllegalStateException upon attempted |
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* submission; a subsequent close or closeExceptionally has no |
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* additional effect. |
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*/ |
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public void testCloseExceptionally() { |
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SubmissionPublisher<Integer> p = basicPublisher(); |
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SubmissionPublisher<Integer> p = basicPublisher(); |
247 |
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p.subscribe(s); |
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assertTrue(p.hasSubscribers()); |
249 |
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assertEquals(p.getNumberOfSubscribers(), 1); |
249 |
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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); |
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assertEquals(s.nexts, 0); |
255 |
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assertEquals(s.errors, 0); |
256 |
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assertEquals(s.completes, 0); |
254 |
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assertEquals(0, s.nexts); |
255 |
> |
assertEquals(0, s.errors); |
256 |
> |
assertEquals(0, s.completes); |
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TestSubscriber s2 = new TestSubscriber(); |
258 |
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p.subscribe(s2); |
259 |
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assertTrue(p.hasSubscribers()); |
260 |
< |
assertEquals(p.getNumberOfSubscribers(), 2); |
260 |
> |
assertEquals(2, p.getNumberOfSubscribers()); |
261 |
|
assertTrue(p.getSubscribers().contains(s)); |
262 |
|
assertTrue(p.getSubscribers().contains(s2)); |
263 |
|
assertTrue(p.isSubscribed(s)); |
264 |
|
assertTrue(p.isSubscribed(s2)); |
265 |
|
s2.awaitSubscribe(); |
266 |
|
assertNotNull(s2.sn); |
267 |
< |
assertEquals(s2.nexts, 0); |
268 |
< |
assertEquals(s2.errors, 0); |
269 |
< |
assertEquals(s2.completes, 0); |
267 |
> |
assertEquals(0, s2.nexts); |
268 |
> |
assertEquals(0, s2.errors); |
269 |
> |
assertEquals(0, s2.completes); |
270 |
> |
p.close(); |
271 |
|
} |
272 |
|
|
273 |
|
/** |
280 |
|
p.close(); |
281 |
|
p.subscribe(s); |
282 |
|
s.awaitComplete(); |
283 |
< |
assertEquals(s.nexts, 0); |
284 |
< |
assertEquals(s.errors, 0); |
285 |
< |
assertEquals(s.completes, 1); |
283 |
> |
assertEquals(0, s.nexts); |
284 |
> |
assertEquals(0, s.errors); |
285 |
> |
assertEquals(1, s.completes, 1); |
286 |
|
} |
287 |
|
|
288 |
|
/** |
298 |
|
assertSame(p.getClosedException(), ex); |
299 |
|
p.subscribe(s); |
300 |
|
s.awaitError(); |
301 |
< |
assertEquals(s.nexts, 0); |
302 |
< |
assertEquals(s.errors, 1); |
301 |
> |
assertEquals(0, s.nexts); |
302 |
> |
assertEquals(1, s.errors); |
303 |
|
} |
304 |
|
|
305 |
|
/** |
311 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
312 |
|
p.subscribe(s); |
313 |
|
assertTrue(p.hasSubscribers()); |
314 |
< |
assertEquals(p.getNumberOfSubscribers(), 1); |
314 |
> |
assertEquals(1, p.getNumberOfSubscribers()); |
315 |
|
assertTrue(p.getSubscribers().contains(s)); |
316 |
|
assertTrue(p.isSubscribed(s)); |
317 |
|
s.awaitSubscribe(); |
318 |
|
assertNotNull(s.sn); |
319 |
< |
assertEquals(s.nexts, 0); |
320 |
< |
assertEquals(s.errors, 0); |
321 |
< |
assertEquals(s.completes, 0); |
319 |
> |
assertEquals(0, s.nexts); |
320 |
> |
assertEquals(0, s.errors); |
321 |
> |
assertEquals(0, s.completes); |
322 |
|
p.subscribe(s); |
323 |
|
s.awaitError(); |
324 |
< |
assertEquals(s.nexts, 0); |
325 |
< |
assertEquals(s.errors, 1); |
324 |
> |
assertEquals(0, s.nexts); |
325 |
> |
assertEquals(1, s.errors); |
326 |
|
assertFalse(p.isSubscribed(s)); |
327 |
|
} |
328 |
|
|
337 |
|
p.subscribe(s); |
338 |
|
} catch (Exception ok) {} |
339 |
|
s.awaitError(); |
340 |
< |
assertEquals(s.nexts, 0); |
341 |
< |
assertEquals(s.errors, 1); |
342 |
< |
assertEquals(s.completes, 0); |
340 |
> |
assertEquals(0, s.nexts); |
341 |
> |
assertEquals(1, s.errors); |
342 |
> |
assertEquals(0, s.completes); |
343 |
|
} |
344 |
|
|
345 |
|
/** |
346 |
< |
* subscribe(null) thows NPE |
346 |
> |
* subscribe(null) throws NPE |
347 |
|
*/ |
348 |
|
public void testSubscribe6() { |
349 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
368 |
|
assertTrue(p.isClosed()); |
369 |
|
assertNull(p.getClosedException()); |
370 |
|
s1.awaitComplete(); |
371 |
< |
assertEquals(s1.nexts, 1); |
372 |
< |
assertEquals(s1.completes, 1); |
371 |
> |
assertEquals(1, s1.nexts); |
372 |
> |
assertEquals(1, s1.completes); |
373 |
|
s2.awaitComplete(); |
374 |
< |
assertEquals(s2.nexts, 1); |
375 |
< |
assertEquals(s2.completes, 1); |
374 |
> |
assertEquals(1, s2.nexts); |
375 |
> |
assertEquals(1, s2.completes); |
376 |
|
} |
377 |
|
|
378 |
|
/** |
379 |
|
* Closing a publisher exceptionally causes onError to subscribers |
380 |
+ |
* after they are subscribed |
381 |
|
*/ |
382 |
|
public void testCloseExceptionallyError() { |
383 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
388 |
|
p.submit(1); |
389 |
|
p.closeExceptionally(new SPException()); |
390 |
|
assertTrue(p.isClosed()); |
391 |
+ |
s1.awaitSubscribe(); |
392 |
|
s1.awaitError(); |
393 |
|
assertTrue(s1.nexts <= 1); |
394 |
< |
assertEquals(s1.errors, 1); |
394 |
> |
assertEquals(1, s1.errors); |
395 |
> |
s2.awaitSubscribe(); |
396 |
|
s2.awaitError(); |
397 |
|
assertTrue(s2.nexts <= 1); |
398 |
< |
assertEquals(s2.errors, 1); |
398 |
> |
assertEquals(1, s2.errors); |
399 |
|
} |
400 |
|
|
401 |
|
/** |
402 |
|
* Cancelling a subscription eventually causes no more onNexts to be issued |
403 |
|
*/ |
404 |
|
public void testCancel() { |
405 |
< |
SubmissionPublisher<Integer> p = basicPublisher(); |
405 |
> |
SubmissionPublisher<Integer> p = |
406 |
> |
new SubmissionPublisher<Integer>(basicExecutor, 4); // must be < 20 |
407 |
|
TestSubscriber s1 = new TestSubscriber(); |
408 |
|
TestSubscriber s2 = new TestSubscriber(); |
409 |
|
p.subscribe(s1); |
415 |
|
p.submit(i); |
416 |
|
p.close(); |
417 |
|
s2.awaitComplete(); |
418 |
< |
assertEquals(s2.nexts, 20); |
419 |
< |
assertEquals(s2.completes, 1); |
418 |
> |
assertEquals(20, s2.nexts); |
419 |
> |
assertEquals(1, s2.completes); |
420 |
|
assertTrue(s1.nexts < 20); |
421 |
|
assertFalse(p.isSubscribed(s1)); |
422 |
|
} |
436 |
|
p.submit(2); |
437 |
|
p.close(); |
438 |
|
s2.awaitComplete(); |
439 |
< |
assertEquals(s2.nexts, 2); |
439 |
> |
assertEquals(2, s2.nexts); |
440 |
|
s1.awaitComplete(); |
441 |
< |
assertEquals(s1.errors, 1); |
441 |
> |
assertEquals(1, s1.errors); |
442 |
|
} |
443 |
|
|
444 |
|
/** |
445 |
< |
* If a handler is supplied in conctructor, it is invoked when |
445 |
> |
* If a handler is supplied in constructor, it is invoked when |
446 |
|
* subscriber throws an exception in onNext |
447 |
|
*/ |
448 |
|
public void testThrowOnNextHandler() { |
449 |
|
AtomicInteger calls = new AtomicInteger(); |
450 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer> |
451 |
< |
(basicExecutor, 8, |
465 |
< |
(s, e) -> calls.getAndIncrement()); |
450 |
> |
SubmissionPublisher<Integer> p = new SubmissionPublisher<>( |
451 |
> |
basicExecutor, 8, (s, e) -> calls.getAndIncrement()); |
452 |
|
TestSubscriber s1 = new TestSubscriber(); |
453 |
|
TestSubscriber s2 = new TestSubscriber(); |
454 |
|
p.subscribe(s1); |
459 |
|
p.submit(2); |
460 |
|
p.close(); |
461 |
|
s2.awaitComplete(); |
462 |
< |
assertEquals(s2.nexts, 2); |
463 |
< |
assertEquals(s2.completes, 1); |
462 |
> |
assertEquals(2, s2.nexts); |
463 |
> |
assertEquals(1, s2.completes); |
464 |
|
s1.awaitError(); |
465 |
< |
assertEquals(s1.errors, 1); |
466 |
< |
assertEquals(calls.get(), 1); |
465 |
> |
assertEquals(1, s1.errors); |
466 |
> |
assertEquals(1, calls.get()); |
467 |
|
} |
468 |
|
|
469 |
|
/** |
480 |
|
p.close(); |
481 |
|
s2.awaitComplete(); |
482 |
|
s1.awaitComplete(); |
483 |
< |
assertEquals(s2.nexts, 20); |
484 |
< |
assertEquals(s2.completes, 1); |
485 |
< |
assertEquals(s1.nexts, 20); |
486 |
< |
assertEquals(s1.completes, 1); |
483 |
> |
assertEquals(20, s2.nexts); |
484 |
> |
assertEquals(1, s2.completes); |
485 |
> |
assertEquals(20, s1.nexts); |
486 |
> |
assertEquals(1, s1.completes); |
487 |
|
} |
488 |
|
|
489 |
|
/** |
495 |
|
s1.request = false; |
496 |
|
p.subscribe(s1); |
497 |
|
s1.awaitSubscribe(); |
498 |
< |
assertTrue(p.estimateMinimumDemand() == 0); |
498 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
499 |
|
TestSubscriber s2 = new TestSubscriber(); |
500 |
|
p.subscribe(s2); |
501 |
|
p.submit(1); |
502 |
|
p.submit(2); |
503 |
|
s2.awaitNext(1); |
504 |
< |
assertEquals(s1.nexts, 0); |
504 |
> |
assertEquals(0, s1.nexts); |
505 |
|
s1.sn.request(3); |
506 |
|
p.submit(3); |
507 |
|
p.close(); |
508 |
|
s2.awaitComplete(); |
509 |
< |
assertEquals(s2.nexts, 3); |
510 |
< |
assertEquals(s2.completes, 1); |
509 |
> |
assertEquals(3, s2.nexts); |
510 |
> |
assertEquals(1, s2.completes); |
511 |
|
s1.awaitComplete(); |
512 |
|
assertTrue(s1.nexts > 0); |
513 |
< |
assertEquals(s1.completes, 1); |
513 |
> |
assertEquals(1, s1.completes); |
514 |
|
} |
515 |
|
|
516 |
|
/** |
529 |
|
p.submit(2); |
530 |
|
p.close(); |
531 |
|
s2.awaitComplete(); |
532 |
< |
assertEquals(s2.nexts, 2); |
533 |
< |
assertEquals(s2.completes, 1); |
532 |
> |
assertEquals(2, s2.nexts); |
533 |
> |
assertEquals(1, s2.completes); |
534 |
|
s1.awaitNext(1); |
535 |
< |
assertEquals(s1.nexts, 1); |
535 |
> |
assertEquals(1, s1.nexts); |
536 |
|
} |
537 |
|
|
538 |
|
/** |
539 |
< |
* Negative request causes error |
539 |
> |
* Non-positive request causes error |
540 |
|
*/ |
541 |
|
public void testRequest3() { |
542 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
543 |
|
TestSubscriber s1 = new TestSubscriber(); |
544 |
|
TestSubscriber s2 = new TestSubscriber(); |
545 |
+ |
TestSubscriber s3 = new TestSubscriber(); |
546 |
|
p.subscribe(s1); |
547 |
|
p.subscribe(s2); |
548 |
+ |
p.subscribe(s3); |
549 |
+ |
s3.awaitSubscribe(); |
550 |
|
s2.awaitSubscribe(); |
551 |
|
s1.awaitSubscribe(); |
552 |
|
s1.sn.request(-1L); |
553 |
+ |
s3.sn.request(0L); |
554 |
|
p.submit(1); |
555 |
|
p.submit(2); |
556 |
|
p.close(); |
557 |
|
s2.awaitComplete(); |
558 |
< |
assertEquals(s2.nexts, 2); |
559 |
< |
assertEquals(s2.completes, 1); |
558 |
> |
assertEquals(2, s2.nexts); |
559 |
> |
assertEquals(1, s2.completes); |
560 |
|
s1.awaitError(); |
561 |
< |
assertEquals(s1.errors, 1); |
561 |
> |
assertEquals(1, s1.errors); |
562 |
|
assertTrue(s1.lastError instanceof IllegalArgumentException); |
563 |
+ |
s3.awaitError(); |
564 |
+ |
assertEquals(1, s3.errors); |
565 |
+ |
assertTrue(s3.lastError instanceof IllegalArgumentException); |
566 |
|
} |
567 |
|
|
568 |
|
/** |
569 |
|
* estimateMinimumDemand reports 0 until request, nonzero after |
570 |
< |
* request, and zero again after delivery |
570 |
> |
* request |
571 |
|
*/ |
572 |
|
public void testEstimateMinimumDemand() { |
573 |
|
TestSubscriber s = new TestSubscriber(); |
575 |
|
s.request = false; |
576 |
|
p.subscribe(s); |
577 |
|
s.awaitSubscribe(); |
578 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
578 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
579 |
|
s.sn.request(1); |
580 |
< |
assertEquals(p.estimateMinimumDemand(), 1); |
588 |
< |
p.submit(1); |
589 |
< |
s.awaitNext(1); |
590 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
580 |
> |
assertEquals(1, p.estimateMinimumDemand()); |
581 |
|
} |
582 |
|
|
583 |
|
/** |
585 |
|
*/ |
586 |
|
public void testEmptySubmit() { |
587 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
588 |
< |
assertEquals(p.submit(1), 0); |
588 |
> |
assertEquals(0, p.submit(1)); |
589 |
|
} |
590 |
|
|
591 |
|
/** |
613 |
|
p.subscribe(s2); |
614 |
|
s2.awaitSubscribe(); |
615 |
|
s1.awaitSubscribe(); |
616 |
< |
assertEquals(p.submit(1), 1); |
616 |
> |
assertEquals(1, p.submit(1)); |
617 |
|
assertTrue(p.estimateMaximumLag() >= 1); |
618 |
|
assertTrue(p.submit(2) >= 2); |
619 |
|
assertTrue(p.estimateMaximumLag() >= 2); |
624 |
|
p.submit(4); |
625 |
|
p.close(); |
626 |
|
s2.awaitComplete(); |
627 |
< |
assertEquals(s2.nexts, 4); |
627 |
> |
assertEquals(4, s2.nexts); |
628 |
|
s1.awaitComplete(); |
629 |
< |
assertEquals(s2.nexts, 4); |
629 |
> |
assertEquals(4, s2.nexts); |
630 |
|
} |
631 |
|
|
632 |
|
/** |
633 |
|
* submit eventually issues requested items when buffer capacity is 1 |
634 |
|
*/ |
635 |
|
public void testCap1Submit() { |
636 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
637 |
< |
basicExecutor, 1); |
636 |
> |
SubmissionPublisher<Integer> p |
637 |
> |
= new SubmissionPublisher<>(basicExecutor, 1); |
638 |
|
TestSubscriber s1 = new TestSubscriber(); |
639 |
|
TestSubscriber s2 = new TestSubscriber(); |
640 |
|
p.subscribe(s1); |
641 |
|
p.subscribe(s2); |
642 |
|
for (int i = 1; i <= 20; ++i) { |
653 |
– |
assertTrue(p.estimateMinimumDemand() <= 1); |
643 |
|
assertTrue(p.submit(i) >= 0); |
644 |
|
} |
645 |
|
p.close(); |
646 |
|
s2.awaitComplete(); |
647 |
|
s1.awaitComplete(); |
648 |
< |
assertEquals(s2.nexts, 20); |
649 |
< |
assertEquals(s2.completes, 1); |
650 |
< |
assertEquals(s1.nexts, 20); |
651 |
< |
assertEquals(s1.completes, 1); |
648 |
> |
assertEquals(20, s2.nexts); |
649 |
> |
assertEquals(1, s2.completes); |
650 |
> |
assertEquals(20, s1.nexts); |
651 |
> |
assertEquals(1, s1.completes); |
652 |
|
} |
653 |
|
|
654 |
|
static boolean noopHandle(AtomicInteger count) { |
702 |
|
p.offer(4, null); |
703 |
|
p.close(); |
704 |
|
s2.awaitComplete(); |
705 |
< |
assertEquals(s2.nexts, 4); |
705 |
> |
assertEquals(4, s2.nexts); |
706 |
|
s1.awaitComplete(); |
707 |
< |
assertEquals(s2.nexts, 4); |
707 |
> |
assertEquals(4, s2.nexts); |
708 |
|
} |
709 |
|
|
710 |
|
/** |
711 |
|
* offer reports drops if saturated |
712 |
|
*/ |
713 |
|
public void testDroppedOffer() { |
714 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
715 |
< |
basicExecutor, 4); |
714 |
> |
SubmissionPublisher<Integer> p |
715 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
716 |
|
TestSubscriber s1 = new TestSubscriber(); |
717 |
|
s1.request = false; |
718 |
|
TestSubscriber s2 = new TestSubscriber(); |
740 |
|
*/ |
741 |
|
public void testHandledDroppedOffer() { |
742 |
|
AtomicInteger calls = new AtomicInteger(); |
743 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
744 |
< |
basicExecutor, 4); |
743 |
> |
SubmissionPublisher<Integer> p |
744 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
745 |
|
TestSubscriber s1 = new TestSubscriber(); |
746 |
|
s1.request = false; |
747 |
|
TestSubscriber s2 = new TestSubscriber(); |
763 |
|
assertTrue(calls.get() >= 4); |
764 |
|
} |
765 |
|
|
777 |
– |
|
766 |
|
/** |
767 |
|
* offer succeeds if drop handler forces request |
768 |
|
*/ |
769 |
|
public void testRecoveredHandledDroppedOffer() { |
770 |
|
AtomicInteger calls = new AtomicInteger(); |
771 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
772 |
< |
basicExecutor, 4); |
771 |
> |
SubmissionPublisher<Integer> p |
772 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
773 |
|
TestSubscriber s1 = new TestSubscriber(); |
774 |
|
s1.request = false; |
775 |
|
TestSubscriber s2 = new TestSubscriber(); |
786 |
|
p.close(); |
787 |
|
s2.awaitComplete(); |
788 |
|
s1.awaitComplete(); |
789 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
789 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
790 |
|
assertTrue(calls.get() >= 2); |
791 |
|
} |
792 |
|
|
805 |
– |
|
793 |
|
/** |
794 |
< |
* TimedOffer to a publisher with no subscribers returns lag 0 |
794 |
> |
* Timed offer to a publisher with no subscribers returns lag 0 |
795 |
|
*/ |
796 |
|
public void testEmptyTimedOffer() { |
797 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
798 |
< |
assertEquals(p.offer(1, null), 0); |
798 |
> |
long startTime = System.nanoTime(); |
799 |
> |
assertEquals(0, p.offer(1, LONG_DELAY_MS, MILLISECONDS, null)); |
800 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
801 |
|
} |
802 |
|
|
803 |
|
/** |
805 |
|
*/ |
806 |
|
public void testNullTimedOffer() { |
807 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
808 |
+ |
long startTime = System.nanoTime(); |
809 |
|
try { |
810 |
< |
p.offer(null, SHORT_DELAY_MS, MILLISECONDS, null); |
810 |
> |
p.offer(null, LONG_DELAY_MS, MILLISECONDS, null); |
811 |
|
shouldThrow(); |
812 |
|
} catch (NullPointerException success) {} |
813 |
|
try { |
814 |
< |
p.offer(1, SHORT_DELAY_MS, null, null); |
814 |
> |
p.offer(1, LONG_DELAY_MS, null, null); |
815 |
|
shouldThrow(); |
816 |
|
} catch (NullPointerException success) {} |
817 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
818 |
|
} |
819 |
|
|
820 |
|
/** |
830 |
|
p.subscribe(s2); |
831 |
|
s2.awaitSubscribe(); |
832 |
|
s1.awaitSubscribe(); |
833 |
< |
assertTrue(p.offer(1, SHORT_DELAY_MS, MILLISECONDS, null) >= 1); |
834 |
< |
assertTrue(p.offer(2, SHORT_DELAY_MS, MILLISECONDS, null) >= 2); |
833 |
> |
long startTime = System.nanoTime(); |
834 |
> |
assertTrue(p.offer(1, LONG_DELAY_MS, MILLISECONDS, null) >= 1); |
835 |
> |
assertTrue(p.offer(2, LONG_DELAY_MS, MILLISECONDS, null) >= 2); |
836 |
|
s1.sn.request(4); |
837 |
< |
assertTrue(p.offer(3, SHORT_DELAY_MS, MILLISECONDS, null) >= 3); |
837 |
> |
assertTrue(p.offer(3, LONG_DELAY_MS, MILLISECONDS, null) >= 3); |
838 |
|
s2.sn.request(4); |
839 |
< |
p.offer(4, SHORT_DELAY_MS, MILLISECONDS, null); |
839 |
> |
p.offer(4, LONG_DELAY_MS, MILLISECONDS, null); |
840 |
|
p.close(); |
841 |
|
s2.awaitComplete(); |
842 |
< |
assertEquals(s2.nexts, 4); |
842 |
> |
assertEquals(4, s2.nexts); |
843 |
|
s1.awaitComplete(); |
844 |
< |
assertEquals(s2.nexts, 4); |
844 |
> |
assertEquals(4, s2.nexts); |
845 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
846 |
|
} |
847 |
|
|
848 |
|
/** |
849 |
|
* Timed offer reports drops if saturated |
850 |
|
*/ |
851 |
|
public void testDroppedTimedOffer() { |
852 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
853 |
< |
basicExecutor, 4); |
852 |
> |
SubmissionPublisher<Integer> p |
853 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
854 |
|
TestSubscriber s1 = new TestSubscriber(); |
855 |
|
s1.request = false; |
856 |
|
TestSubscriber s2 = new TestSubscriber(); |
859 |
|
p.subscribe(s2); |
860 |
|
s2.awaitSubscribe(); |
861 |
|
s1.awaitSubscribe(); |
862 |
+ |
long delay = timeoutMillis(); |
863 |
|
for (int i = 1; i <= 4; ++i) |
864 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, null) >= 0); |
865 |
< |
p.offer(5, SHORT_DELAY_MS, MILLISECONDS, null); |
866 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
864 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, null) >= 0); |
865 |
> |
long startTime = System.nanoTime(); |
866 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, null) < 0); |
867 |
|
s1.sn.request(64); |
868 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
868 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, null) < 0); |
869 |
> |
// 2 * delay should elapse but check only 1 * delay to allow timer slop |
870 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
871 |
|
s2.sn.request(64); |
872 |
|
p.close(); |
873 |
|
s2.awaitComplete(); |
881 |
|
*/ |
882 |
|
public void testHandledDroppedTimedOffer() { |
883 |
|
AtomicInteger calls = new AtomicInteger(); |
884 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
885 |
< |
basicExecutor, 4); |
884 |
> |
SubmissionPublisher<Integer> p |
885 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
886 |
|
TestSubscriber s1 = new TestSubscriber(); |
887 |
|
s1.request = false; |
888 |
|
TestSubscriber s2 = new TestSubscriber(); |
891 |
|
p.subscribe(s2); |
892 |
|
s2.awaitSubscribe(); |
893 |
|
s1.awaitSubscribe(); |
894 |
+ |
long delay = timeoutMillis(); |
895 |
|
for (int i = 1; i <= 4; ++i) |
896 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
897 |
< |
p.offer(5, (s, x) -> noopHandle(calls)); |
898 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
896 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
897 |
> |
long startTime = System.nanoTime(); |
898 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
899 |
|
s1.sn.request(64); |
900 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
900 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
901 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
902 |
|
s2.sn.request(64); |
903 |
|
p.close(); |
904 |
|
s2.awaitComplete(); |
911 |
|
*/ |
912 |
|
public void testRecoveredHandledDroppedTimedOffer() { |
913 |
|
AtomicInteger calls = new AtomicInteger(); |
914 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
915 |
< |
basicExecutor, 4); |
914 |
> |
SubmissionPublisher<Integer> p |
915 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
916 |
|
TestSubscriber s1 = new TestSubscriber(); |
917 |
|
s1.request = false; |
918 |
|
TestSubscriber s2 = new TestSubscriber(); |
922 |
|
s2.awaitSubscribe(); |
923 |
|
s1.awaitSubscribe(); |
924 |
|
int n = 0; |
925 |
< |
for (int i = 1; i <= 8; ++i) { |
926 |
< |
int d = p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
925 |
> |
long delay = timeoutMillis(); |
926 |
> |
long startTime = System.nanoTime(); |
927 |
> |
for (int i = 1; i <= 6; ++i) { |
928 |
> |
int d = p.offer(i, delay, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
929 |
|
n = n + 2 + (d < 0 ? d : 0); |
930 |
|
} |
931 |
+ |
assertTrue(millisElapsedSince(startTime) >= delay); |
932 |
|
p.close(); |
933 |
|
s2.awaitComplete(); |
934 |
|
s1.awaitComplete(); |
935 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
935 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
936 |
|
assertTrue(calls.get() >= 2); |
937 |
|
} |
938 |
|
|
939 |
+ |
/** |
940 |
+ |
* consume returns a CompletableFuture that is done when |
941 |
+ |
* publisher completes |
942 |
+ |
*/ |
943 |
+ |
public void testConsume() { |
944 |
+ |
AtomicInteger sum = new AtomicInteger(); |
945 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
946 |
+ |
CompletableFuture<Void> f = |
947 |
+ |
p.consume((Integer x) -> sum.getAndAdd(x.intValue())); |
948 |
+ |
int n = 20; |
949 |
+ |
for (int i = 1; i <= n; ++i) |
950 |
+ |
p.submit(i); |
951 |
+ |
p.close(); |
952 |
+ |
f.join(); |
953 |
+ |
assertEquals((n * (n + 1)) / 2, sum.get()); |
954 |
+ |
} |
955 |
+ |
|
956 |
+ |
/** |
957 |
+ |
* consume(null) throws NPE |
958 |
+ |
*/ |
959 |
+ |
public void testConsumeNPE() { |
960 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
961 |
+ |
try { |
962 |
+ |
CompletableFuture<Void> f = p.consume(null); |
963 |
+ |
shouldThrow(); |
964 |
+ |
} catch (NullPointerException success) {} |
965 |
+ |
} |
966 |
+ |
|
967 |
+ |
/** |
968 |
+ |
* consume eventually stops processing published items if cancelled |
969 |
+ |
*/ |
970 |
+ |
public void testCancelledConsume() { |
971 |
+ |
AtomicInteger count = new AtomicInteger(); |
972 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
973 |
+ |
CompletableFuture<Void> f = p.consume(x -> count.getAndIncrement()); |
974 |
+ |
f.cancel(true); |
975 |
+ |
int n = 1000000; // arbitrary limit |
976 |
+ |
for (int i = 1; i <= n; ++i) |
977 |
+ |
p.submit(i); |
978 |
+ |
assertTrue(count.get() < n); |
979 |
+ |
} |
980 |
|
|
981 |
|
} |