5 |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
6 |
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*/ |
7 |
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|
8 |
< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
9 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
10 |
< |
|
8 |
> |
import java.util.concurrent.CompletableFuture; |
9 |
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import java.util.concurrent.Executor; |
10 |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.Flow; |
14 |
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import static java.util.concurrent.Flow.Publisher; |
15 |
– |
import static java.util.concurrent.Flow.Subscriber; |
16 |
– |
import static java.util.concurrent.Flow.Subscription; |
17 |
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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; |
20 |
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import java.util.concurrent.ThreadFactory; |
21 |
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import java.util.concurrent.ThreadPoolExecutor; |
22 |
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import java.util.concurrent.TimeUnit; |
14 |
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import java.util.concurrent.atomic.AtomicInteger; |
24 |
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import java.util.function.BiConsumer; |
25 |
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import java.util.function.BiPredicate; |
26 |
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import java.util.function.BiFunction; |
27 |
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|
15 |
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import junit.framework.Test; |
16 |
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import junit.framework.TestSuite; |
17 |
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|
18 |
+ |
import static java.util.concurrent.Flow.Subscriber; |
19 |
+ |
import static java.util.concurrent.Flow.Subscription; |
20 |
+ |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
21 |
+ |
|
22 |
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public class SubmissionPublisherTest extends JSR166TestCase { |
23 |
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|
24 |
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public static void main(String[] args) { |
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return new TestSuite(SubmissionPublisherTest.class); |
29 |
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} |
30 |
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|
31 |
< |
// Factory for single thread pool in case commonPool parallelism is zero |
32 |
< |
static final class DaemonThreadFactory implements ThreadFactory { |
42 |
< |
public Thread newThread(Runnable r) { |
43 |
< |
Thread t = new Thread(r); |
44 |
< |
t.setDaemon(true); |
45 |
< |
return t; |
46 |
< |
} |
47 |
< |
} |
48 |
< |
|
49 |
< |
static final Executor basicExecutor = |
50 |
< |
(ForkJoinPool.getCommonPoolParallelism() > 0) ? |
51 |
< |
ForkJoinPool.commonPool() : |
52 |
< |
new ThreadPoolExecutor(1, 1, 60, SECONDS, |
53 |
< |
new LinkedBlockingQueue<Runnable>(), |
54 |
< |
new DaemonThreadFactory()); |
55 |
< |
|
31 |
> |
final Executor basicExecutor = basicPublisher().getExecutor(); |
32 |
> |
|
33 |
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static SubmissionPublisher<Integer> basicPublisher() { |
34 |
< |
return new SubmissionPublisher<Integer>(basicExecutor, |
58 |
< |
Flow.defaultBufferSize()); |
34 |
> |
return new SubmissionPublisher<Integer>(); |
35 |
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} |
36 |
< |
|
36 |
> |
|
37 |
|
static class SPException extends RuntimeException {} |
38 |
|
|
39 |
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class TestSubscriber implements Subscriber<Integer> { |
129 |
|
*/ |
130 |
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void checkInitialState(SubmissionPublisher<?> p) { |
131 |
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assertFalse(p.hasSubscribers()); |
132 |
< |
assertEquals(p.getNumberOfSubscribers(), 0); |
132 |
> |
assertEquals(0, p.getNumberOfSubscribers()); |
133 |
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assertTrue(p.getSubscribers().isEmpty()); |
134 |
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assertFalse(p.isClosed()); |
135 |
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assertNull(p.getClosedException()); |
136 |
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int n = p.getMaxBufferCapacity(); |
137 |
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assertTrue((n & (n - 1)) == 0); // power of two |
138 |
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assertNotNull(p.getExecutor()); |
139 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
140 |
< |
assertEquals(p.estimateMaximumLag(), 0); |
139 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
140 |
> |
assertEquals(0, p.estimateMaximumLag()); |
141 |
|
} |
142 |
|
|
143 |
|
/** |
144 |
|
* A default-constructed SubmissionPublisher has no subscribers, |
145 |
|
* is not closed, has default buffer size, and uses the |
146 |
< |
* ForkJoinPool.commonPool executor |
146 |
> |
* defaultExecutor |
147 |
|
*/ |
148 |
|
public void testConstructor1() { |
149 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(); |
149 |
> |
SubmissionPublisher<Integer> p = new SubmissionPublisher<>(); |
150 |
|
checkInitialState(p); |
175 |
– |
assertSame(p.getExecutor(), ForkJoinPool.commonPool()); |
151 |
|
assertEquals(p.getMaxBufferCapacity(), Flow.defaultBufferSize()); |
152 |
+ |
Executor e = p.getExecutor(), c = ForkJoinPool.commonPool(); |
153 |
+ |
if (ForkJoinPool.getCommonPoolParallelism() > 1) |
154 |
+ |
assertSame(e, c); |
155 |
+ |
else |
156 |
+ |
assertNotSame(e, c); |
157 |
|
} |
158 |
|
|
159 |
|
/** |
162 |
|
*/ |
163 |
|
public void testConstructor2() { |
164 |
|
Executor e = Executors.newFixedThreadPool(1); |
165 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(e, 8); |
165 |
> |
SubmissionPublisher<Integer> p = new SubmissionPublisher<>(e, 8); |
166 |
|
checkInitialState(p); |
167 |
|
assertSame(p.getExecutor(), e); |
168 |
< |
assertEquals(p.getMaxBufferCapacity(), 8); |
168 |
> |
assertEquals(8, p.getMaxBufferCapacity()); |
169 |
|
} |
170 |
|
|
171 |
|
/** |
172 |
< |
* A null Executor argument to SubmissionPublisher constructor throws NPE |
172 |
> |
* A null Executor argument to SubmissionPublisher constructor |
173 |
> |
* throws NullPointerException |
174 |
|
*/ |
175 |
|
public void testConstructor3() { |
176 |
|
try { |
177 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(null, 8); |
177 |
> |
new SubmissionPublisher<Integer>(null, 8); |
178 |
|
shouldThrow(); |
179 |
< |
} catch (NullPointerException success) { |
199 |
< |
} |
179 |
> |
} catch (NullPointerException success) {} |
180 |
|
} |
181 |
|
|
182 |
|
/** |
183 |
|
* A negative capacity argument to SubmissionPublisher constructor |
184 |
< |
* throws IAE |
184 |
> |
* throws IllegalArgumentException |
185 |
|
*/ |
186 |
|
public void testConstructor4() { |
187 |
|
Executor e = Executors.newFixedThreadPool(1); |
188 |
|
try { |
189 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>(e, -1); |
189 |
> |
new SubmissionPublisher<Integer>(e, -1); |
190 |
|
shouldThrow(); |
191 |
< |
} catch (IllegalArgumentException success) { |
212 |
< |
} |
191 |
> |
} catch (IllegalArgumentException success) {} |
192 |
|
} |
193 |
|
|
194 |
|
/** |
195 |
|
* A closed publisher reports isClosed with no closedException and |
196 |
< |
* throws ISE upon attempted submission; a subsequent close or |
197 |
< |
* closeExceptionally has no additional effect. |
196 |
> |
* throws IllegalStateException upon attempted submission; a |
197 |
> |
* subsequent close or closeExceptionally has no additional |
198 |
> |
* effect. |
199 |
|
*/ |
200 |
|
public void testClose() { |
201 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
206 |
|
try { |
207 |
|
p.submit(1); |
208 |
|
shouldThrow(); |
209 |
< |
} |
230 |
< |
catch(IllegalStateException success) { |
231 |
< |
} |
209 |
> |
} catch (IllegalStateException success) {} |
210 |
|
Throwable ex = new SPException(); |
211 |
|
p.closeExceptionally(ex); |
212 |
|
assertTrue(p.isClosed()); |
215 |
|
|
216 |
|
/** |
217 |
|
* A publisher closedExceptionally reports isClosed with the |
218 |
< |
* closedException and throws ISE upon attempted submission; a |
219 |
< |
* subsequent close or closeExceptionally has no additional |
220 |
< |
* effect. |
218 |
> |
* closedException and throws IllegalStateException upon attempted |
219 |
> |
* submission; a subsequent close or closeExceptionally has no |
220 |
> |
* additional effect. |
221 |
|
*/ |
222 |
|
public void testCloseExceptionally() { |
223 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
229 |
|
try { |
230 |
|
p.submit(1); |
231 |
|
shouldThrow(); |
232 |
< |
} |
255 |
< |
catch(IllegalStateException success) { |
256 |
< |
} |
232 |
> |
} catch (IllegalStateException success) {} |
233 |
|
p.close(); |
234 |
|
assertTrue(p.isClosed()); |
235 |
|
assertSame(p.getClosedException(), ex); |
246 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
247 |
|
p.subscribe(s); |
248 |
|
assertTrue(p.hasSubscribers()); |
249 |
< |
assertEquals(p.getNumberOfSubscribers(), 1); |
249 |
> |
assertEquals(1, p.getNumberOfSubscribers()); |
250 |
|
assertTrue(p.getSubscribers().contains(s)); |
251 |
|
assertTrue(p.isSubscribed(s)); |
252 |
|
s.awaitSubscribe(); |
253 |
|
assertNotNull(s.sn); |
254 |
< |
assertEquals(s.nexts, 0); |
255 |
< |
assertEquals(s.errors, 0); |
256 |
< |
assertEquals(s.completes, 0); |
254 |
> |
assertEquals(0, s.nexts); |
255 |
> |
assertEquals(0, s.errors); |
256 |
> |
assertEquals(0, s.completes); |
257 |
|
TestSubscriber s2 = new TestSubscriber(); |
258 |
|
p.subscribe(s2); |
259 |
|
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 |
|
|
335 |
|
s.throwOnCall = true; |
336 |
|
try { |
337 |
|
p.subscribe(s); |
338 |
< |
} catch(Exception ok) { |
362 |
< |
} |
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(); |
350 |
|
try { |
351 |
|
p.subscribe(null); |
352 |
< |
} catch(NullPointerException success) { |
353 |
< |
} |
352 |
> |
shouldThrow(); |
353 |
> |
} catch (NullPointerException success) {} |
354 |
|
checkInitialState(p); |
355 |
|
} |
356 |
|
|
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 |
|
/** |
414 |
|
p.submit(i); |
415 |
|
p.close(); |
416 |
|
s2.awaitComplete(); |
417 |
< |
assertEquals(s2.nexts, 20); |
418 |
< |
assertEquals(s2.completes, 1); |
417 |
> |
assertEquals(20, s2.nexts); |
418 |
> |
assertEquals(1, s2.completes); |
419 |
|
assertTrue(s1.nexts < 20); |
420 |
|
assertFalse(p.isSubscribed(s1)); |
421 |
|
} |
435 |
|
p.submit(2); |
436 |
|
p.close(); |
437 |
|
s2.awaitComplete(); |
438 |
< |
assertEquals(s2.nexts, 2); |
438 |
> |
assertEquals(2, s2.nexts); |
439 |
|
s1.awaitComplete(); |
440 |
< |
assertEquals(s1.errors, 1); |
440 |
> |
assertEquals(1, s1.errors); |
441 |
|
} |
442 |
|
|
443 |
|
/** |
444 |
< |
* If a handler is supplied in conctructor, it is invoked when |
444 |
> |
* If a handler is supplied in constructor, it is invoked when |
445 |
|
* subscriber throws an exception in onNext |
446 |
|
*/ |
447 |
|
public void testThrowOnNextHandler() { |
448 |
|
AtomicInteger calls = new AtomicInteger(); |
449 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer> |
450 |
< |
(basicExecutor, 8, |
472 |
< |
(s, e) -> calls.getAndIncrement()); |
449 |
> |
SubmissionPublisher<Integer> p = new SubmissionPublisher<>( |
450 |
> |
basicExecutor, 8, (s, e) -> calls.getAndIncrement()); |
451 |
|
TestSubscriber s1 = new TestSubscriber(); |
452 |
|
TestSubscriber s2 = new TestSubscriber(); |
453 |
|
p.subscribe(s1); |
458 |
|
p.submit(2); |
459 |
|
p.close(); |
460 |
|
s2.awaitComplete(); |
461 |
< |
assertEquals(s2.nexts, 2); |
462 |
< |
assertEquals(s2.completes, 1); |
461 |
> |
assertEquals(2, s2.nexts); |
462 |
> |
assertEquals(1, s2.completes); |
463 |
|
s1.awaitError(); |
464 |
< |
assertEquals(s1.errors, 1); |
465 |
< |
assertEquals(calls.get(), 1); |
464 |
> |
assertEquals(1, s1.errors); |
465 |
> |
assertEquals(1, calls.get()); |
466 |
|
} |
467 |
|
|
468 |
|
/** |
479 |
|
p.close(); |
480 |
|
s2.awaitComplete(); |
481 |
|
s1.awaitComplete(); |
482 |
< |
assertEquals(s2.nexts, 20); |
483 |
< |
assertEquals(s2.completes, 1); |
484 |
< |
assertEquals(s1.nexts, 20); |
485 |
< |
assertEquals(s1.completes, 1); |
482 |
> |
assertEquals(20, s2.nexts); |
483 |
> |
assertEquals(1, s2.completes); |
484 |
> |
assertEquals(20, s1.nexts); |
485 |
> |
assertEquals(1, s1.completes); |
486 |
|
} |
487 |
|
|
488 |
|
/** |
494 |
|
s1.request = false; |
495 |
|
p.subscribe(s1); |
496 |
|
s1.awaitSubscribe(); |
497 |
< |
assertTrue(p.estimateMinimumDemand() == 0); |
497 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
498 |
|
TestSubscriber s2 = new TestSubscriber(); |
499 |
|
p.subscribe(s2); |
500 |
|
p.submit(1); |
501 |
|
p.submit(2); |
502 |
|
s2.awaitNext(1); |
503 |
< |
assertEquals(s1.nexts, 0); |
503 |
> |
assertEquals(0, s1.nexts); |
504 |
|
s1.sn.request(3); |
505 |
|
p.submit(3); |
506 |
|
p.close(); |
507 |
|
s2.awaitComplete(); |
508 |
< |
assertEquals(s2.nexts, 3); |
509 |
< |
assertEquals(s2.completes, 1); |
508 |
> |
assertEquals(3, s2.nexts); |
509 |
> |
assertEquals(1, s2.completes); |
510 |
|
s1.awaitComplete(); |
511 |
|
assertTrue(s1.nexts > 0); |
512 |
< |
assertEquals(s1.completes, 1); |
512 |
> |
assertEquals(1, s1.completes); |
513 |
|
} |
514 |
|
|
515 |
|
/** |
528 |
|
p.submit(2); |
529 |
|
p.close(); |
530 |
|
s2.awaitComplete(); |
531 |
< |
assertEquals(s2.nexts, 2); |
532 |
< |
assertEquals(s2.completes, 1); |
531 |
> |
assertEquals(2, s2.nexts); |
532 |
> |
assertEquals(1, s2.completes); |
533 |
|
s1.awaitNext(1); |
534 |
< |
assertEquals(s1.nexts, 1); |
534 |
> |
assertEquals(1, s1.nexts); |
535 |
|
} |
536 |
|
|
537 |
|
/** |
538 |
< |
* Negative request causes error |
538 |
> |
* Non-positive request causes error |
539 |
|
*/ |
540 |
|
public void testRequest3() { |
541 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
542 |
|
TestSubscriber s1 = new TestSubscriber(); |
543 |
|
TestSubscriber s2 = new TestSubscriber(); |
544 |
+ |
TestSubscriber s3 = new TestSubscriber(); |
545 |
|
p.subscribe(s1); |
546 |
|
p.subscribe(s2); |
547 |
+ |
p.subscribe(s3); |
548 |
+ |
s3.awaitSubscribe(); |
549 |
|
s2.awaitSubscribe(); |
550 |
|
s1.awaitSubscribe(); |
551 |
|
s1.sn.request(-1L); |
552 |
+ |
s3.sn.request(0L); |
553 |
|
p.submit(1); |
554 |
|
p.submit(2); |
555 |
|
p.close(); |
556 |
|
s2.awaitComplete(); |
557 |
< |
assertEquals(s2.nexts, 2); |
558 |
< |
assertEquals(s2.completes, 1); |
557 |
> |
assertEquals(2, s2.nexts); |
558 |
> |
assertEquals(1, s2.completes); |
559 |
|
s1.awaitError(); |
560 |
< |
assertEquals(s1.errors, 1); |
560 |
> |
assertEquals(1, s1.errors); |
561 |
|
assertTrue(s1.lastError instanceof IllegalArgumentException); |
562 |
+ |
s3.awaitError(); |
563 |
+ |
assertEquals(1, s3.errors); |
564 |
+ |
assertTrue(s3.lastError instanceof IllegalArgumentException); |
565 |
|
} |
566 |
|
|
567 |
|
/** |
574 |
|
s.request = false; |
575 |
|
p.subscribe(s); |
576 |
|
s.awaitSubscribe(); |
577 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
577 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
578 |
|
s.sn.request(1); |
579 |
< |
assertEquals(p.estimateMinimumDemand(), 1); |
579 |
> |
assertEquals(1, p.estimateMinimumDemand()); |
580 |
|
p.submit(1); |
581 |
|
s.awaitNext(1); |
582 |
< |
assertEquals(p.estimateMinimumDemand(), 0); |
582 |
> |
assertEquals(0, p.estimateMinimumDemand()); |
583 |
|
} |
584 |
|
|
585 |
|
/** |
586 |
< |
* Submit to a publisher with no subscribers returns lag 0 |
586 |
> |
* submit to a publisher with no subscribers returns lag 0 |
587 |
|
*/ |
588 |
|
public void testEmptySubmit() { |
589 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
590 |
< |
assertEquals(p.submit(1), 0); |
590 |
> |
assertEquals(0, p.submit(1)); |
591 |
|
} |
592 |
|
|
593 |
|
/** |
594 |
< |
* Submit(null) throws NPE |
594 |
> |
* submit(null) throws NPE |
595 |
|
*/ |
596 |
|
public void testNullSubmit() { |
597 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
598 |
|
try { |
599 |
|
p.submit(null); |
600 |
< |
} catch (NullPointerException success) { |
601 |
< |
} |
600 |
> |
shouldThrow(); |
601 |
> |
} catch (NullPointerException success) {} |
602 |
|
} |
603 |
|
|
604 |
|
/** |
605 |
< |
* Submit returns number of lagged items, compatible with result |
605 |
> |
* submit returns number of lagged items, compatible with result |
606 |
|
* of estimateMaximumLag. |
607 |
|
*/ |
608 |
|
public void testLaggedSubmit() { |
615 |
|
p.subscribe(s2); |
616 |
|
s2.awaitSubscribe(); |
617 |
|
s1.awaitSubscribe(); |
618 |
< |
assertEquals(p.submit(1), 1); |
618 |
> |
assertEquals(1, p.submit(1)); |
619 |
|
assertTrue(p.estimateMaximumLag() >= 1); |
620 |
|
assertTrue(p.submit(2) >= 2); |
621 |
|
assertTrue(p.estimateMaximumLag() >= 2); |
626 |
|
p.submit(4); |
627 |
|
p.close(); |
628 |
|
s2.awaitComplete(); |
629 |
< |
assertEquals(s2.nexts, 4); |
629 |
> |
assertEquals(4, s2.nexts); |
630 |
|
s1.awaitComplete(); |
631 |
< |
assertEquals(s2.nexts, 4); |
631 |
> |
assertEquals(4, s2.nexts); |
632 |
|
} |
633 |
|
|
634 |
|
/** |
635 |
|
* submit eventually issues requested items when buffer capacity is 1 |
636 |
|
*/ |
637 |
|
public void testCap1Submit() { |
638 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
639 |
< |
basicExecutor, 1); |
638 |
> |
SubmissionPublisher<Integer> p |
639 |
> |
= new SubmissionPublisher<>(basicExecutor, 1); |
640 |
|
TestSubscriber s1 = new TestSubscriber(); |
641 |
|
TestSubscriber s2 = new TestSubscriber(); |
642 |
|
p.subscribe(s1); |
648 |
|
p.close(); |
649 |
|
s2.awaitComplete(); |
650 |
|
s1.awaitComplete(); |
651 |
< |
assertEquals(s2.nexts, 20); |
652 |
< |
assertEquals(s2.completes, 1); |
653 |
< |
assertEquals(s1.nexts, 20); |
654 |
< |
assertEquals(s1.completes, 1); |
651 |
> |
assertEquals(20, s2.nexts); |
652 |
> |
assertEquals(1, s2.completes); |
653 |
> |
assertEquals(20, s1.nexts); |
654 |
> |
assertEquals(1, s1.completes); |
655 |
|
} |
656 |
< |
|
656 |
> |
|
657 |
|
static boolean noopHandle(AtomicInteger count) { |
658 |
|
count.getAndIncrement(); |
659 |
|
return false; |
666 |
|
} |
667 |
|
|
668 |
|
/** |
669 |
< |
* Offer to a publisher with no subscribers returns lag 0 |
669 |
> |
* offer to a publisher with no subscribers returns lag 0 |
670 |
|
*/ |
671 |
|
public void testEmptyOffer() { |
672 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
673 |
< |
assertEquals(p.offer(1, null), 0); |
673 |
> |
assertEquals(0, p.offer(1, null)); |
674 |
|
} |
675 |
|
|
676 |
|
/** |
677 |
< |
* Offer(null) throws NPE |
677 |
> |
* offer(null) throws NPE |
678 |
|
*/ |
679 |
|
public void testNullOffer() { |
680 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
681 |
|
try { |
682 |
|
p.offer(null, null); |
683 |
< |
} catch (NullPointerException success) { |
684 |
< |
} |
683 |
> |
shouldThrow(); |
684 |
> |
} catch (NullPointerException success) {} |
685 |
|
} |
686 |
|
|
687 |
|
/** |
688 |
< |
* Offer returns number of lagged items if not saturated |
688 |
> |
* offer returns number of lagged items if not saturated |
689 |
|
*/ |
690 |
|
public void testLaggedOffer() { |
691 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
705 |
|
p.offer(4, null); |
706 |
|
p.close(); |
707 |
|
s2.awaitComplete(); |
708 |
< |
assertEquals(s2.nexts, 4); |
708 |
> |
assertEquals(4, s2.nexts); |
709 |
|
s1.awaitComplete(); |
710 |
< |
assertEquals(s2.nexts, 4); |
710 |
> |
assertEquals(4, s2.nexts); |
711 |
|
} |
712 |
|
|
713 |
|
/** |
714 |
< |
* Offer reports drops if saturated |
714 |
> |
* offer reports drops if saturated |
715 |
|
*/ |
716 |
|
public void testDroppedOffer() { |
717 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
718 |
< |
basicExecutor, 4); |
717 |
> |
SubmissionPublisher<Integer> p |
718 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
719 |
|
TestSubscriber s1 = new TestSubscriber(); |
720 |
|
s1.request = false; |
721 |
|
TestSubscriber s2 = new TestSubscriber(); |
739 |
|
} |
740 |
|
|
741 |
|
/** |
742 |
< |
* Offer invokes drop handler if saturated |
742 |
> |
* offer invokes drop handler if saturated |
743 |
|
*/ |
744 |
|
public void testHandledDroppedOffer() { |
745 |
|
AtomicInteger calls = new AtomicInteger(); |
746 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
747 |
< |
basicExecutor, 4); |
746 |
> |
SubmissionPublisher<Integer> p |
747 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
748 |
|
TestSubscriber s1 = new TestSubscriber(); |
749 |
|
s1.request = false; |
750 |
|
TestSubscriber s2 = new TestSubscriber(); |
766 |
|
assertTrue(calls.get() >= 4); |
767 |
|
} |
768 |
|
|
784 |
– |
|
769 |
|
/** |
770 |
< |
* Offer succeeds if drop handler forces request |
770 |
> |
* offer succeeds if drop handler forces request |
771 |
|
*/ |
772 |
|
public void testRecoveredHandledDroppedOffer() { |
773 |
|
AtomicInteger calls = new AtomicInteger(); |
774 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
775 |
< |
basicExecutor, 4); |
774 |
> |
SubmissionPublisher<Integer> p |
775 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
776 |
|
TestSubscriber s1 = new TestSubscriber(); |
777 |
|
s1.request = false; |
778 |
|
TestSubscriber s2 = new TestSubscriber(); |
789 |
|
p.close(); |
790 |
|
s2.awaitComplete(); |
791 |
|
s1.awaitComplete(); |
792 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
792 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
793 |
|
assertTrue(calls.get() >= 2); |
794 |
|
} |
795 |
|
|
812 |
– |
|
796 |
|
/** |
797 |
< |
* TimedOffer to a publisher with no subscribers returns lag 0 |
797 |
> |
* Timed offer to a publisher with no subscribers returns lag 0 |
798 |
|
*/ |
799 |
|
public void testEmptyTimedOffer() { |
800 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
801 |
< |
assertEquals(p.offer(1, null), 0); |
801 |
> |
long startTime = System.nanoTime(); |
802 |
> |
assertEquals(0, p.offer(1, LONG_DELAY_MS, MILLISECONDS, null)); |
803 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
804 |
|
} |
805 |
|
|
806 |
|
/** |
807 |
< |
* Timed Offer with null item or TimeUnit throws NPE |
807 |
> |
* Timed offer with null item or TimeUnit throws NPE |
808 |
|
*/ |
809 |
|
public void testNullTimedOffer() { |
810 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
811 |
+ |
long startTime = System.nanoTime(); |
812 |
|
try { |
813 |
< |
p.offer(null, SHORT_DELAY_MS, MILLISECONDS, null); |
814 |
< |
} catch (NullPointerException success) { |
815 |
< |
} |
813 |
> |
p.offer(null, LONG_DELAY_MS, MILLISECONDS, null); |
814 |
> |
shouldThrow(); |
815 |
> |
} catch (NullPointerException success) {} |
816 |
|
try { |
817 |
< |
p.offer(1, SHORT_DELAY_MS, null, null); |
818 |
< |
} catch (NullPointerException success) { |
819 |
< |
} |
817 |
> |
p.offer(1, LONG_DELAY_MS, null, null); |
818 |
> |
shouldThrow(); |
819 |
> |
} catch (NullPointerException success) {} |
820 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
821 |
|
} |
822 |
|
|
823 |
|
/** |
824 |
< |
* Timed Offer returns number of lagged items if not saturated |
824 |
> |
* Timed offer returns number of lagged items if not saturated |
825 |
|
*/ |
826 |
|
public void testLaggedTimedOffer() { |
827 |
|
SubmissionPublisher<Integer> p = basicPublisher(); |
833 |
|
p.subscribe(s2); |
834 |
|
s2.awaitSubscribe(); |
835 |
|
s1.awaitSubscribe(); |
836 |
< |
assertTrue(p.offer(1, SHORT_DELAY_MS, MILLISECONDS, null) >= 1); |
837 |
< |
assertTrue(p.offer(2, SHORT_DELAY_MS, MILLISECONDS, null) >= 2); |
836 |
> |
long startTime = System.nanoTime(); |
837 |
> |
assertTrue(p.offer(1, LONG_DELAY_MS, MILLISECONDS, null) >= 1); |
838 |
> |
assertTrue(p.offer(2, LONG_DELAY_MS, MILLISECONDS, null) >= 2); |
839 |
|
s1.sn.request(4); |
840 |
< |
assertTrue(p.offer(3, SHORT_DELAY_MS, MILLISECONDS, null) >= 3); |
840 |
> |
assertTrue(p.offer(3, LONG_DELAY_MS, MILLISECONDS, null) >= 3); |
841 |
|
s2.sn.request(4); |
842 |
< |
p.offer(4, SHORT_DELAY_MS, MILLISECONDS, null); |
842 |
> |
p.offer(4, LONG_DELAY_MS, MILLISECONDS, null); |
843 |
|
p.close(); |
844 |
|
s2.awaitComplete(); |
845 |
< |
assertEquals(s2.nexts, 4); |
845 |
> |
assertEquals(4, s2.nexts); |
846 |
|
s1.awaitComplete(); |
847 |
< |
assertEquals(s2.nexts, 4); |
847 |
> |
assertEquals(4, s2.nexts); |
848 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
849 |
|
} |
850 |
|
|
851 |
|
/** |
852 |
< |
* Timed Offer reports drops if saturated |
852 |
> |
* Timed offer reports drops if saturated |
853 |
|
*/ |
854 |
|
public void testDroppedTimedOffer() { |
855 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
856 |
< |
basicExecutor, 4); |
855 |
> |
SubmissionPublisher<Integer> p |
856 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
857 |
|
TestSubscriber s1 = new TestSubscriber(); |
858 |
|
s1.request = false; |
859 |
|
TestSubscriber s2 = new TestSubscriber(); |
862 |
|
p.subscribe(s2); |
863 |
|
s2.awaitSubscribe(); |
864 |
|
s1.awaitSubscribe(); |
865 |
+ |
long delay = timeoutMillis(); |
866 |
|
for (int i = 1; i <= 4; ++i) |
867 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, null) >= 0); |
868 |
< |
p.offer(5, SHORT_DELAY_MS, MILLISECONDS, null); |
869 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
867 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, null) >= 0); |
868 |
> |
long startTime = System.nanoTime(); |
869 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, null) < 0); |
870 |
|
s1.sn.request(64); |
871 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, null) < 0); |
871 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, null) < 0); |
872 |
> |
// 2 * delay should elapse but check only 1 * delay to allow timer slop |
873 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
874 |
|
s2.sn.request(64); |
875 |
|
p.close(); |
876 |
|
s2.awaitComplete(); |
880 |
|
} |
881 |
|
|
882 |
|
/** |
883 |
< |
* Timed Offer invokes drop handler if saturated |
883 |
> |
* Timed offer invokes drop handler if saturated |
884 |
|
*/ |
885 |
|
public void testHandledDroppedTimedOffer() { |
886 |
|
AtomicInteger calls = new AtomicInteger(); |
887 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
888 |
< |
basicExecutor, 4); |
887 |
> |
SubmissionPublisher<Integer> p |
888 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
889 |
|
TestSubscriber s1 = new TestSubscriber(); |
890 |
|
s1.request = false; |
891 |
|
TestSubscriber s2 = new TestSubscriber(); |
894 |
|
p.subscribe(s2); |
895 |
|
s2.awaitSubscribe(); |
896 |
|
s1.awaitSubscribe(); |
897 |
+ |
long delay = timeoutMillis(); |
898 |
|
for (int i = 1; i <= 4; ++i) |
899 |
< |
assertTrue(p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
900 |
< |
p.offer(5, (s, x) -> noopHandle(calls)); |
901 |
< |
assertTrue(p.offer(6, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
899 |
> |
assertTrue(p.offer(i, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) >= 0); |
900 |
> |
long startTime = System.nanoTime(); |
901 |
> |
assertTrue(p.offer(5, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
902 |
|
s1.sn.request(64); |
903 |
< |
assertTrue(p.offer(7, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
903 |
> |
assertTrue(p.offer(6, delay, MILLISECONDS, (s, x) -> noopHandle(calls)) < 0); |
904 |
> |
assertTrue(millisElapsedSince(startTime) >= delay); |
905 |
|
s2.sn.request(64); |
906 |
|
p.close(); |
907 |
|
s2.awaitComplete(); |
910 |
|
} |
911 |
|
|
912 |
|
/** |
913 |
< |
* Timed Offer succeeds if drop handler forces request |
913 |
> |
* Timed offer succeeds if drop handler forces request |
914 |
|
*/ |
915 |
|
public void testRecoveredHandledDroppedTimedOffer() { |
916 |
|
AtomicInteger calls = new AtomicInteger(); |
917 |
< |
SubmissionPublisher<Integer> p = new SubmissionPublisher<Integer>( |
918 |
< |
basicExecutor, 4); |
917 |
> |
SubmissionPublisher<Integer> p |
918 |
> |
= new SubmissionPublisher<>(basicExecutor, 4); |
919 |
|
TestSubscriber s1 = new TestSubscriber(); |
920 |
|
s1.request = false; |
921 |
|
TestSubscriber s2 = new TestSubscriber(); |
925 |
|
s2.awaitSubscribe(); |
926 |
|
s1.awaitSubscribe(); |
927 |
|
int n = 0; |
928 |
< |
for (int i = 1; i <= 8; ++i) { |
929 |
< |
int d = p.offer(i, SHORT_DELAY_MS, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
928 |
> |
long delay = timeoutMillis(); |
929 |
> |
long startTime = System.nanoTime(); |
930 |
> |
for (int i = 1; i <= 6; ++i) { |
931 |
> |
int d = p.offer(i, delay, MILLISECONDS, (s, x) -> reqHandle(calls, s)); |
932 |
|
n = n + 2 + (d < 0 ? d : 0); |
933 |
|
} |
934 |
+ |
assertTrue(millisElapsedSince(startTime) >= delay); |
935 |
|
p.close(); |
936 |
|
s2.awaitComplete(); |
937 |
|
s1.awaitComplete(); |
938 |
< |
assertEquals(s1.nexts + s2.nexts, n); |
938 |
> |
assertEquals(n, s1.nexts + s2.nexts); |
939 |
|
assertTrue(calls.get() >= 2); |
940 |
|
} |
941 |
|
|
942 |
+ |
/** |
943 |
+ |
* consume returns a CompletableFuture that is done when |
944 |
+ |
* publisher completes |
945 |
+ |
*/ |
946 |
+ |
public void testConsume() { |
947 |
+ |
AtomicInteger sum = new AtomicInteger(); |
948 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
949 |
+ |
CompletableFuture<Void> f = |
950 |
+ |
p.consume((Integer x) -> sum.getAndAdd(x.intValue())); |
951 |
+ |
int n = 20; |
952 |
+ |
for (int i = 1; i <= n; ++i) |
953 |
+ |
p.submit(i); |
954 |
+ |
p.close(); |
955 |
+ |
f.join(); |
956 |
+ |
assertEquals((n * (n + 1)) / 2, sum.get()); |
957 |
+ |
} |
958 |
+ |
|
959 |
+ |
/** |
960 |
+ |
* consume(null) throws NPE |
961 |
+ |
*/ |
962 |
+ |
public void testConsumeNPE() { |
963 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
964 |
+ |
try { |
965 |
+ |
CompletableFuture<Void> f = p.consume(null); |
966 |
+ |
shouldThrow(); |
967 |
+ |
} catch (NullPointerException success) {} |
968 |
+ |
} |
969 |
+ |
|
970 |
+ |
/** |
971 |
+ |
* consume eventually stops processing published items if cancelled |
972 |
+ |
*/ |
973 |
+ |
public void testCancelledConsume() { |
974 |
+ |
AtomicInteger count = new AtomicInteger(); |
975 |
+ |
SubmissionPublisher<Integer> p = basicPublisher(); |
976 |
+ |
CompletableFuture<Void> f = p.consume(x -> count.getAndIncrement()); |
977 |
+ |
f.cancel(true); |
978 |
+ |
int n = 1000000; // arbitrary limit |
979 |
+ |
for (int i = 1; i <= n; ++i) |
980 |
+ |
p.submit(i); |
981 |
+ |
assertTrue(count.get() < n); |
982 |
+ |
} |
983 |
|
|
984 |
|
} |