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root/jsr166/jsr166/src/test/tck/PhaserTest.java

Comparing jsr166/src/test/tck/PhaserTest.java (file contents):
Revision 1.33 by jsr166, Wed Jun 22 07:46:57 2011 UTC vs.
Revision 1.45 by jsr166, Sat Feb 18 15:05:55 2017 UTC

#	Line 5 | Line 5
5		* Other contributors include John Vint
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>
10		import java.util.ArrayList;
11		import java.util.List;
11	–	import java.util.concurrent.Phaser;
12		import java.util.concurrent.CountDownLatch;
13	+	import java.util.concurrent.Phaser;
14		import java.util.concurrent.TimeoutException;
14	–	import static java.util.concurrent.TimeUnit.MILLISECONDS;
15	–	import static java.util.concurrent.TimeUnit.NANOSECONDS;
16	–	import java.util.concurrent.atomic.AtomicBoolean;
15		import java.util.concurrent.atomic.AtomicInteger;
16
17	+	import junit.framework.Test;
18	+	import junit.framework.TestSuite;
19	+
20		public class PhaserTest extends JSR166TestCase {
21
22		public static void main(String[] args) {
23	<	junit.textui.TestRunner.run(suite());
23	>	main(suite(), args);
24		}
25
26		public static Test suite() {
#	Line 165 | Line 166 | public class PhaserTest extends JSR166Te
166		}
167
168		/**
169	<	* register() correctly returns the current barrier phase number when
170	<	* invoked
169	>	* register() correctly returns the current barrier phase number
170	>	* when invoked
171		*/
172		public void testRegister3() {
173		Phaser phaser = new Phaser();
#	Line 177 | Line 178 | public class PhaserTest extends JSR166Te
178		}
179
180		/**
181	<	* register causes the next arrive to not increment the phase rather retain
182	<	* the phase number
181	>	* register causes the next arrive to not increment the phase
182	>	* rather retain the phase number
183		*/
184		public void testRegister4() {
185		Phaser phaser = new Phaser(1);
#	Line 189 | Line 190 | public class PhaserTest extends JSR166Te
190		}
191
192		/**
193	+	* register on a subphaser that is currently empty succeeds, even
194	+	* in the presence of another non-empty subphaser
195	+	*/
196	+	public void testRegisterEmptySubPhaser() {
197	+	Phaser root = new Phaser();
198	+	Phaser child1 = new Phaser(root, 1);
199	+	Phaser child2 = new Phaser(root, 0);
200	+	assertEquals(0, child2.register());
201	+	assertState(root, 0, 2, 2);
202	+	assertState(child1, 0, 1, 1);
203	+	assertState(child2, 0, 1, 1);
204	+	assertEquals(0, child2.arriveAndDeregister());
205	+	assertState(root, 0, 1, 1);
206	+	assertState(child1, 0, 1, 1);
207	+	assertState(child2, 0, 0, 0);
208	+	assertEquals(0, child2.register());
209	+	assertEquals(0, child2.arriveAndDeregister());
210	+	assertState(root, 0, 1, 1);
211	+	assertState(child1, 0, 1, 1);
212	+	assertState(child2, 0, 0, 0);
213	+	assertEquals(0, child1.arriveAndDeregister());
214	+	assertTerminated(root, 1);
215	+	assertTerminated(child1, 1);
216	+	assertTerminated(child2, 1);
217	+	}
218	+
219	+	/**
220		* Invoking bulkRegister with a negative parameter throws an
221		* IllegalArgumentException
222		*/
#	Line 200 | Line 228 | public class PhaserTest extends JSR166Te
228		}
229
230		/**
231	<	* bulkRegister should correctly record the number of unarrived parties with
232	<	* the number of parties being registered
231	>	* bulkRegister should correctly record the number of unarrived
232	>	* parties with the number of parties being registered
233		*/
234		public void testBulkRegister2() {
235		Phaser phaser = new Phaser();
#	Line 274 | Line 302 | public class PhaserTest extends JSR166Te
302		public void testArrive2() {
303		final Phaser phaser = new Phaser();
304		assertEquals(0, phaser.register());
305	<	List<Thread> threads = new ArrayList<Thread>();
305	>	List<Thread> threads = new ArrayList<>();
306		for (int i = 0; i < 10; i++) {
307		assertEquals(0, phaser.register());
308		threads.add(newStartedThread(new CheckedRunnable() {
#	Line 310 | Line 338 | public class PhaserTest extends JSR166Te
338		* registered or unarrived parties would become negative
339		*/
340		public void testArriveAndDeregister1() {
341	+	Phaser phaser = new Phaser();
342		try {
314	–	Phaser phaser = new Phaser();
343		phaser.arriveAndDeregister();
344		shouldThrow();
345		} catch (IllegalStateException success) {}
#	Line 495 | Line 523 | public class PhaserTest extends JSR166Te
523		}});
524
525		await(pleaseArrive);
526	<	waitForThreadToEnterWaitState(t, SHORT_DELAY_MS);
526	>	waitForThreadToEnterWaitState(t);
527		assertEquals(0, phaser.arrive());
528		awaitTermination(t);
529
#	Line 523 | Line 551 | public class PhaserTest extends JSR166Te
551		}});
552
553		await(pleaseArrive);
554	<	waitForThreadToEnterWaitState(t, SHORT_DELAY_MS);
554	>	waitForThreadToEnterWaitState(t);
555		t.interrupt();
556		assertEquals(0, phaser.arrive());
557		awaitTermination(t);
#	Line 539 | Line 567 | public class PhaserTest extends JSR166Te
567		public void testArriveAndAwaitAdvanceAfterInterrupt() {
568		final Phaser phaser = new Phaser();
569		assertEquals(0, phaser.register());
570	<	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
570	>	final CountDownLatch pleaseArrive = new CountDownLatch(1);
571
572		Thread t = newStartedThread(new CheckedRunnable() {
573		public void realRun() {
574		Thread.currentThread().interrupt();
575		assertEquals(0, phaser.register());
576	<	pleaseInterrupt.countDown();
576	>	pleaseArrive.countDown();
577		assertTrue(Thread.currentThread().isInterrupted());
578		assertEquals(1, phaser.arriveAndAwaitAdvance());
579	<	assertTrue(Thread.currentThread().isInterrupted());
579	>	assertTrue(Thread.interrupted());
580		}});
581
582	<	await(pleaseInterrupt);
583	<	waitForThreadToEnterWaitState(t, SHORT_DELAY_MS);
582	>	await(pleaseArrive);
583	>	waitForThreadToEnterWaitState(t);
584		Thread.currentThread().interrupt();
585		assertEquals(1, phaser.arriveAndAwaitAdvance());
586		assertTrue(Thread.interrupted());
#	Line 573 | Line 601 | public class PhaserTest extends JSR166Te
601		assertFalse(Thread.currentThread().isInterrupted());
602		pleaseInterrupt.countDown();
603		assertEquals(1, phaser.arriveAndAwaitAdvance());
604	<	assertTrue(Thread.currentThread().isInterrupted());
604	>	assertTrue(Thread.interrupted());
605		}});
606
607		await(pleaseInterrupt);
608	<	waitForThreadToEnterWaitState(t, SHORT_DELAY_MS);
608	>	waitForThreadToEnterWaitState(t);
609		t.interrupt();
610		Thread.currentThread().interrupt();
611		assertEquals(1, phaser.arriveAndAwaitAdvance());
#	Line 592 | Line 620 | public class PhaserTest extends JSR166Te
620		public void testAwaitAdvance4() {
621		final Phaser phaser = new Phaser(4);
622		final AtomicInteger count = new AtomicInteger(0);
623	<	List<Thread> threads = new ArrayList<Thread>();
623	>	List<Thread> threads = new ArrayList<>();
624		for (int i = 0; i < 4; i++)
625		threads.add(newStartedThread(new CheckedRunnable() {
626		public void realRun() {
627		for (int k = 0; k < 3; k++) {
628	<	assertEquals(2*k+1, phaser.arriveAndAwaitAdvance());
628	>	assertEquals(2 * k + 1, phaser.arriveAndAwaitAdvance());
629		count.incrementAndGet();
630	<	assertEquals(2*k+1, phaser.arrive());
631	<	assertEquals(2*k+2, phaser.awaitAdvance(2*k+1));
632	<	assertEquals(count.get(), 4*(k+1));
630	>	assertEquals(2 * k + 1, phaser.arrive());
631	>	assertEquals(2 * k + 2, phaser.awaitAdvance(2 * k + 1));
632	>	assertEquals(4 * (k + 1), count.get());
633		}}}));
634
635		for (Thread thread : threads)
#	Line 616 | Line 644 | public class PhaserTest extends JSR166Te
644		assertEquals(1, phaser.awaitAdvance(phaser.arrive()));
645		assertEquals(1, phaser.getPhase());
646		assertEquals(1, phaser.register());
647	<	List<Thread> threads = new ArrayList<Thread>();
647	>	List<Thread> threads = new ArrayList<>();
648		for (int i = 0; i < 8; i++) {
649		final CountDownLatch latch = new CountDownLatch(1);
650		final boolean goesFirst = ((i & 1) == 0);
#	Line 644 | Line 672 | public class PhaserTest extends JSR166Te
672		*/
673		public void testAwaitAdvanceTieredPhaser() throws Exception {
674		final Phaser parent = new Phaser();
675	<	final List<Phaser> zeroPartyChildren = new ArrayList<Phaser>(3);
676	<	final List<Phaser> onePartyChildren = new ArrayList<Phaser>(3);
675	>	final List<Phaser> zeroPartyChildren = new ArrayList<>(3);
676	>	final List<Phaser> onePartyChildren = new ArrayList<>(3);
677		for (int i = 0; i < 3; i++) {
678		zeroPartyChildren.add(new Phaser(parent, 0));
679		onePartyChildren.add(new Phaser(parent, 1));
680		}
681	<	final List<Phaser> phasers = new ArrayList<Phaser>();
681	>	final List<Phaser> phasers = new ArrayList<>();
682		phasers.addAll(zeroPartyChildren);
683		phasers.addAll(onePartyChildren);
684		phasers.add(parent);
685		for (Phaser phaser : phasers) {
686		assertEquals(-42, phaser.awaitAdvance(-42));
687		assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42));
688	<	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS));
688	>	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS));
689		}
690
691		for (Phaser child : onePartyChildren)
#	Line 665 | Line 693 | public class PhaserTest extends JSR166Te
693		for (Phaser phaser : phasers) {
694		assertEquals(-42, phaser.awaitAdvance(-42));
695		assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42));
696	<	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS));
696	>	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS));
697		assertEquals(1, phaser.awaitAdvance(0));
698		assertEquals(1, phaser.awaitAdvanceInterruptibly(0));
699	<	assertEquals(1, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS));
699	>	assertEquals(1, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS));
700		}
701
702		for (Phaser child : onePartyChildren)
#	Line 676 | Line 704 | public class PhaserTest extends JSR166Te
704		for (Phaser phaser : phasers) {
705		assertEquals(-42, phaser.awaitAdvance(-42));
706		assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42));
707	<	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS));
707	>	assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS));
708		assertEquals(2, phaser.awaitAdvance(0));
709		assertEquals(2, phaser.awaitAdvanceInterruptibly(0));
710	<	assertEquals(2, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS));
710	>	assertEquals(2, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS));
711		assertEquals(2, phaser.awaitAdvance(1));
712		assertEquals(2, phaser.awaitAdvanceInterruptibly(1));
713	<	assertEquals(2, phaser.awaitAdvanceInterruptibly(1, SMALL_DELAY_MS, MILLISECONDS));
713	>	assertEquals(2, phaser.awaitAdvanceInterruptibly(1, MEDIUM_DELAY_MS, MILLISECONDS));
714		}
715		}
716
#	Line 692 | Line 720 | public class PhaserTest extends JSR166Te
720		public void testAwaitAdvance6() {
721		final Phaser phaser = new Phaser(3);
722		final CountDownLatch pleaseForceTermination = new CountDownLatch(2);
723	<	final List<Thread> threads = new ArrayList<Thread>();
723	>	final List<Thread> threads = new ArrayList<>();
724		for (int i = 0; i < 2; i++) {
725		Runnable r = new CheckedRunnable() {
726		public void realRun() {
#	Line 720 | Line 748 | public class PhaserTest extends JSR166Te
748		* unarrived parties
749		*/
750		public void testArriveAndAwaitAdvance1() {
751	+	Phaser phaser = new Phaser();
752		try {
724	–	Phaser phaser = new Phaser();
753		phaser.arriveAndAwaitAdvance();
754		shouldThrow();
755		} catch (IllegalStateException success) {}
#	Line 736 | Line 764 | public class PhaserTest extends JSR166Te
764		final Phaser phaser = new Phaser(1);
765		final int THREADS = 3;
766		final CountDownLatch pleaseArrive = new CountDownLatch(THREADS);
767	<	final List<Thread> threads = new ArrayList<Thread>();
767	>	final List<Thread> threads = new ArrayList<>();
768		for (int i = 0; i < THREADS; i++)
769		threads.add(newStartedThread(new CheckedRunnable() {
770		public void realRun() {
#	Line 752 | Line 780 | public class PhaserTest extends JSR166Te
780		assertEquals(THREADS, phaser.getArrivedParties());
781		assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
782		for (Thread thread : threads)
783	<	waitForThreadToEnterWaitState(thread, SHORT_DELAY_MS);
783	>	waitForThreadToEnterWaitState(thread);
784		for (Thread thread : threads)
785		assertTrue(thread.isAlive());
786		assertState(phaser, 0, THREADS + 1, 1);

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