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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.182 by jsr166, Tue Jan 3 03:18:02 2017 UTC vs.
Revision 1.204 by jsr166, Sun Sep 23 00:52:18 2018 UTC

#	Line 41 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
44	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 59 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("Not completed"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
79	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
80	<	try {
81	<	assertEquals(value, f.getNow(null));
82	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	<	try {
84	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95		/**
#	Line 142 | Line 145 | public class CompletableFutureTest exten
145		assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147		assertTrue(f.isCompletedExceptionally());
148	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
#	Line 197 | Line 200 | public class CompletableFutureTest exten
200		assertTrue(f.isDone());
201		assertTrue(f.isCompletedExceptionally());
202		assertTrue(f.isCancelled());
203	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 296 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 333 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 531 | Line 551 | public class CompletableFutureTest exten
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
#	Line 652 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
656	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 726 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 799 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 841 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 848 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
929		final AtomicInteger a = new AtomicInteger(0);
930		final CompletableFuture<Integer> f = new CompletableFuture<>();
931		if (!createIncomplete) assertTrue(f.complete(v1));
932	<	final CompletableFuture<Integer> g = f.exceptionally
933	<	((Throwable t) -> {
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934		a.getAndIncrement();
935		threadFail("should not be called");
936		return null;            // unreached
#	Line 872 | Line 947 | public class CompletableFutureTest exten
947		* exception
948		*/
949		public void testExceptionally_exceptionalCompletion() {
950	+	for (ExecutionMode m : ExecutionMode.values())
951		for (boolean createIncomplete : new boolean[] { true, false })
952		for (Integer v1 : new Integer[] { 1, null })
953		{
#	Line 879 | Line 955 | public class CompletableFutureTest exten
955		final CFException ex = new CFException();
956		final CompletableFuture<Integer> f = new CompletableFuture<>();
957		if (!createIncomplete) f.completeExceptionally(ex);
958	<	final CompletableFuture<Integer> g = f.exceptionally
959	<	((Throwable t) -> {
960	<	ExecutionMode.SYNC.checkExecutionMode();
958	>	final CompletableFuture<Integer> g = m.exceptionally
959	>	(f, (Throwable t) -> {
960	>	m.checkExecutionMode();
961		threadAssertSame(t, ex);
962		a.getAndIncrement();
963		return v1;
#	Line 897 | Line 973 | public class CompletableFutureTest exten
973		* exceptionally with that exception
974		*/
975		public void testExceptionally_exceptionalCompletionActionFailed() {
976	+	for (ExecutionMode m : ExecutionMode.values())
977		for (boolean createIncomplete : new boolean[] { true, false })
978		{
979		final AtomicInteger a = new AtomicInteger(0);
#	Line 904 | Line 981 | public class CompletableFutureTest exten
981		final CFException ex2 = new CFException();
982		final CompletableFuture<Integer> f = new CompletableFuture<>();
983		if (!createIncomplete) f.completeExceptionally(ex1);
984	<	final CompletableFuture<Integer> g = f.exceptionally
985	<	((Throwable t) -> {
986	<	ExecutionMode.SYNC.checkExecutionMode();
984	>	final CompletableFuture<Integer> g = m.exceptionally
985	>	(f, (Throwable t) -> {
986	>	m.checkExecutionMode();
987		threadAssertSame(t, ex1);
988		a.getAndIncrement();
989		throw ex2;
#	Line 1242 | Line 1319 | public class CompletableFutureTest exten
1319		r.assertInvoked();
1320		}}
1321
1322	+	@SuppressWarnings("FutureReturnValueIgnored")
1323		public void testRunAsync_rejectingExecutor() {
1324		CountingRejectingExecutor e = new CountingRejectingExecutor();
1325		try {
#	Line 1288 | Line 1366 | public class CompletableFutureTest exten
1366		r.assertInvoked();
1367		}}
1368
1369	+	@SuppressWarnings("FutureReturnValueIgnored")
1370		public void testSupplyAsync_rejectingExecutor() {
1371		CountingRejectingExecutor e = new CountingRejectingExecutor();
1372		try {
#	Line 2562 | Line 2641 | public class CompletableFutureTest exten
2641
2642		// unspecified behavior - both source completions available
2643		try {
2644	<	assertEquals(null, h0.join());
2644	>	assertNull(h0.join());
2645		rs[0].assertValue(v1);
2646		} catch (CompletionException ok) {
2647		checkCompletedWithWrappedException(h0, ex);
2648		rs[0].assertNotInvoked();
2649		}
2650		try {
2651	<	assertEquals(null, h1.join());
2651	>	assertNull(h1.join());
2652		rs[1].assertValue(v1);
2653		} catch (CompletionException ok) {
2654		checkCompletedWithWrappedException(h1, ex);
2655		rs[1].assertNotInvoked();
2656		}
2657		try {
2658	<	assertEquals(null, h2.join());
2658	>	assertNull(h2.join());
2659		rs[2].assertValue(v1);
2660		} catch (CompletionException ok) {
2661		checkCompletedWithWrappedException(h2, ex);
2662		rs[2].assertNotInvoked();
2663		}
2664		try {
2665	<	assertEquals(null, h3.join());
2665	>	assertNull(h3.join());
2666		rs[3].assertValue(v1);
2667		} catch (CompletionException ok) {
2668		checkCompletedWithWrappedException(h3, ex);
#	Line 2822 | Line 2901 | public class CompletableFutureTest exten
2901
2902		// unspecified behavior - both source completions available
2903		try {
2904	<	assertEquals(null, h0.join());
2904	>	assertNull(h0.join());
2905		rs[0].assertInvoked();
2906		} catch (CompletionException ok) {
2907		checkCompletedWithWrappedException(h0, ex);
2908		rs[0].assertNotInvoked();
2909		}
2910		try {
2911	<	assertEquals(null, h1.join());
2911	>	assertNull(h1.join());
2912		rs[1].assertInvoked();
2913		} catch (CompletionException ok) {
2914		checkCompletedWithWrappedException(h1, ex);
2915		rs[1].assertNotInvoked();
2916		}
2917		try {
2918	<	assertEquals(null, h2.join());
2918	>	assertNull(h2.join());
2919		rs[2].assertInvoked();
2920		} catch (CompletionException ok) {
2921		checkCompletedWithWrappedException(h2, ex);
2922		rs[2].assertNotInvoked();
2923		}
2924		try {
2925	<	assertEquals(null, h3.join());
2925	>	assertNull(h3.join());
2926		rs[3].assertInvoked();
2927		} catch (CompletionException ok) {
2928		checkCompletedWithWrappedException(h3, ex);
#	Line 3075 | Line 3154 | public class CompletableFutureTest exten
3154		checkCompletedNormally(f, v1);
3155		}}
3156
3157	+	/**
3158	+	* exceptionallyCompose result completes normally after normal
3159	+	* completion of source
3160	+	*/
3161	+	public void testExceptionallyCompose_normalCompletion() {
3162	+	for (ExecutionMode m : ExecutionMode.values())
3163	+	for (boolean createIncomplete : new boolean[] { true, false })
3164	+	for (Integer v1 : new Integer[] { 1, null })
3165	+	{
3166	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3167	+	final ExceptionalCompletableFutureFunction r =
3168	+	new ExceptionalCompletableFutureFunction(m);
3169	+	if (!createIncomplete) assertTrue(f.complete(v1));
3170	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3171	+	if (createIncomplete) assertTrue(f.complete(v1));
3172	+
3173	+	checkCompletedNormally(f, v1);
3174	+	checkCompletedNormally(g, v1);
3175	+	r.assertNotInvoked();
3176	+	}}
3177	+
3178	+	/**
3179	+	* exceptionallyCompose result completes normally after exceptional
3180	+	* completion of source
3181	+	*/
3182	+	public void testExceptionallyCompose_exceptionalCompletion() {
3183	+	for (ExecutionMode m : ExecutionMode.values())
3184	+	for (boolean createIncomplete : new boolean[] { true, false })
3185	+	{
3186	+	final CFException ex = new CFException();
3187	+	final ExceptionalCompletableFutureFunction r =
3188	+	new ExceptionalCompletableFutureFunction(m);
3189	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	+	if (!createIncomplete) f.completeExceptionally(ex);
3191	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	+	if (createIncomplete) f.completeExceptionally(ex);
3193	+
3194	+	checkCompletedExceptionally(f, ex);
3195	+	checkCompletedNormally(g, r.value);
3196	+	r.assertInvoked();
3197	+	}}
3198	+
3199	+	/**
3200	+	* exceptionallyCompose completes exceptionally on exception if action does
3201	+	*/
3202	+	public void testExceptionallyCompose_actionFailed() {
3203	+	for (ExecutionMode m : ExecutionMode.values())
3204	+	for (boolean createIncomplete : new boolean[] { true, false })
3205	+	for (Integer v1 : new Integer[] { 1, null })
3206	+	{
3207	+	final CFException ex = new CFException();
3208	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	+	final FailingExceptionalCompletableFutureFunction r
3210	+	= new FailingExceptionalCompletableFutureFunction(m);
3211	+	if (!createIncomplete) f.completeExceptionally(ex);
3212	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	+	if (createIncomplete) f.completeExceptionally(ex);
3214	+
3215	+	checkCompletedExceptionally(f, ex);
3216	+	checkCompletedWithWrappedException(g, r.ex);
3217	+	r.assertInvoked();
3218	+	}}
3219	+
3220	+
3221		// other static methods
3222
3223		/**
#	Line 3238 | Line 3381 | public class CompletableFutureTest exten
3381		/**
3382		* Completion methods throw NullPointerException with null arguments
3383		*/
3384	+	@SuppressWarnings("FutureReturnValueIgnored")
3385		public void testNPE() {
3386		CompletableFuture<Integer> f = new CompletableFuture<>();
3387		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3532 | Line 3676 | public class CompletableFutureTest exten
3676		*/
3677		public void testCompletedStage() {
3678		AtomicInteger x = new AtomicInteger(0);
3679	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3679	>	AtomicReference<Throwable> r = new AtomicReference<>();
3680		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3681		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3682		assertEquals(x.get(), 1);
#	Line 3634 | Line 3778 | public class CompletableFutureTest exten
3778		CompletableFuture<Integer> f = new CompletableFuture<>();
3779		CompletionStage<Integer> g = f.minimalCompletionStage();
3780		AtomicInteger x = new AtomicInteger(0);
3781	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3781	>	AtomicReference<Throwable> r = new AtomicReference<>();
3782		checkIncomplete(f);
3783		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3784		f.complete(1);
#	Line 3651 | Line 3795 | public class CompletableFutureTest exten
3795		CompletableFuture<Integer> f = new CompletableFuture<>();
3796		CompletionStage<Integer> g = f.minimalCompletionStage();
3797		AtomicInteger x = new AtomicInteger(0);
3798	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3798	>	AtomicReference<Throwable> r = new AtomicReference<>();
3799		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3800		checkIncomplete(f);
3801		CFException ex = new CFException();
#	Line 3669 | Line 3813 | public class CompletableFutureTest exten
3813		CFException ex = new CFException();
3814		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3815		AtomicInteger x = new AtomicInteger(0);
3816	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3816	>	AtomicReference<Throwable> r = new AtomicReference<>();
3817		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3818		assertEquals(x.get(), 0);
3819		assertEquals(r.get(), ex);
#	Line 4174 | Line 4318 | public class CompletableFutureTest exten
4318		static void assertZero(CompletableFuture<?> f) {
4319		try {
4320		f.getNow(null);
4321	<	throw new AssertionFailedError("should throw");
4321	>	throw new AssertionError("should throw");
4322		} catch (CompletionException success) {
4323		assertTrue(success.getCause() instanceof ZeroException);
4324		}
#	Line 4299 | Line 4443 | public class CompletableFutureTest exten
4443		}
4444
4445		/** Test long recursive chains of CompletableFutures with cascading completions */
4446	+	@SuppressWarnings("FutureReturnValueIgnored")
4447		public void testRecursiveChains() throws Throwable {
4448		for (ExecutionMode m : ExecutionMode.values())
4449		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4323 | Line 4468 | public class CompletableFutureTest exten
4468		* A single CompletableFuture with many dependents.
4469		* A demo of scalability - runtime is O(n).
4470		*/
4471	+	@SuppressWarnings("FutureReturnValueIgnored")
4472		public void testManyDependents() throws Throwable {
4473		final int n = expensiveTests ? 1_000_000 : 10;
4474		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4352 | Line 4498 | public class CompletableFutureTest exten
4498		}
4499
4500		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4501	+	@SuppressWarnings("FutureReturnValueIgnored")
4502		public void testCoCompletionGarbageRetention() throws Throwable {
4503		final int n = expensiveTests ? 1_000_000 : 10;
4504		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4370 | Line 4517 | public class CompletableFutureTest exten
4517		f.complete(null);
4518
4519		f = new CompletableFuture<>();
4520	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4520	>	CompletableFuture.anyOf(f, incomplete);
4521		f.complete(null);
4522		}
4523
#	Line 4388 | Line 4535 | public class CompletableFutureTest exten
4535		f.complete(null);
4536
4537		f = new CompletableFuture<>();
4538	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4538	>	CompletableFuture.anyOf(incomplete, f);
4539		f.complete(null);
4540		}
4541		}
#	Line 4482 | Line 4629 | public class CompletableFutureTest exten
4629		//         return stage.toCompletableFuture().copy().isDone();
4630		//     }
4631
4632	+	// For testing default implementations
4633	+	// Only non-default interface methods defined.
4634	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4635	+	final CompletableFuture<T> cf;
4636	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4637	+	public CompletableFuture<T> toCompletableFuture() {
4638	+	return cf; }
4639	+	public CompletionStage<Void> thenRun
4640	+	(Runnable action) {
4641	+	return cf.thenRun(action); }
4642	+	public CompletionStage<Void> thenRunAsync
4643	+	(Runnable action) {
4644	+	return cf.thenRunAsync(action); }
4645	+	public CompletionStage<Void> thenRunAsync
4646	+	(Runnable action,
4647	+	Executor executor) {
4648	+	return cf.thenRunAsync(action, executor); }
4649	+	public CompletionStage<Void> thenAccept
4650	+	(Consumer<? super T> action) {
4651	+	return cf.thenAccept(action); }
4652	+	public CompletionStage<Void> thenAcceptAsync
4653	+	(Consumer<? super T> action) {
4654	+	return cf.thenAcceptAsync(action); }
4655	+	public CompletionStage<Void> thenAcceptAsync
4656	+	(Consumer<? super T> action,
4657	+	Executor executor) {
4658	+	return cf.thenAcceptAsync(action, executor); }
4659	+	public <U> CompletionStage<U> thenApply
4660	+	(Function<? super T,? extends U> a) {
4661	+	return cf.thenApply(a); }
4662	+	public <U> CompletionStage<U> thenApplyAsync
4663	+	(Function<? super T,? extends U> fn) {
4664	+	return cf.thenApplyAsync(fn); }
4665	+	public <U> CompletionStage<U> thenApplyAsync
4666	+	(Function<? super T,? extends U> fn,
4667	+	Executor executor) {
4668	+	return cf.thenApplyAsync(fn, executor); }
4669	+	public <U,V> CompletionStage<V> thenCombine
4670	+	(CompletionStage<? extends U> other,
4671	+	BiFunction<? super T,? super U,? extends V> fn) {
4672	+	return cf.thenCombine(other, fn); }
4673	+	public <U,V> CompletionStage<V> thenCombineAsync
4674	+	(CompletionStage<? extends U> other,
4675	+	BiFunction<? super T,? super U,? extends V> fn) {
4676	+	return cf.thenCombineAsync(other, fn); }
4677	+	public <U,V> CompletionStage<V> thenCombineAsync
4678	+	(CompletionStage<? extends U> other,
4679	+	BiFunction<? super T,? super U,? extends V> fn,
4680	+	Executor executor) {
4681	+	return cf.thenCombineAsync(other, fn, executor); }
4682	+	public <U> CompletionStage<Void> thenAcceptBoth
4683	+	(CompletionStage<? extends U> other,
4684	+	BiConsumer<? super T, ? super U> action) {
4685	+	return cf.thenAcceptBoth(other, action); }
4686	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4687	+	(CompletionStage<? extends U> other,
4688	+	BiConsumer<? super T, ? super U> action) {
4689	+	return cf.thenAcceptBothAsync(other, action); }
4690	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4691	+	(CompletionStage<? extends U> other,
4692	+	BiConsumer<? super T, ? super U> action,
4693	+	Executor executor) {
4694	+	return cf.thenAcceptBothAsync(other, action, executor); }
4695	+	public CompletionStage<Void> runAfterBoth
4696	+	(CompletionStage<?> other,
4697	+	Runnable action) {
4698	+	return cf.runAfterBoth(other, action); }
4699	+	public CompletionStage<Void> runAfterBothAsync
4700	+	(CompletionStage<?> other,
4701	+	Runnable action) {
4702	+	return cf.runAfterBothAsync(other, action); }
4703	+	public CompletionStage<Void> runAfterBothAsync
4704	+	(CompletionStage<?> other,
4705	+	Runnable action,
4706	+	Executor executor) {
4707	+	return cf.runAfterBothAsync(other, action, executor); }
4708	+	public <U> CompletionStage<U> applyToEither
4709	+	(CompletionStage<? extends T> other,
4710	+	Function<? super T, U> fn) {
4711	+	return cf.applyToEither(other, fn); }
4712	+	public <U> CompletionStage<U> applyToEitherAsync
4713	+	(CompletionStage<? extends T> other,
4714	+	Function<? super T, U> fn) {
4715	+	return cf.applyToEitherAsync(other, fn); }
4716	+	public <U> CompletionStage<U> applyToEitherAsync
4717	+	(CompletionStage<? extends T> other,
4718	+	Function<? super T, U> fn,
4719	+	Executor executor) {
4720	+	return cf.applyToEitherAsync(other, fn, executor); }
4721	+	public CompletionStage<Void> acceptEither
4722	+	(CompletionStage<? extends T> other,
4723	+	Consumer<? super T> action) {
4724	+	return cf.acceptEither(other, action); }
4725	+	public CompletionStage<Void> acceptEitherAsync
4726	+	(CompletionStage<? extends T> other,
4727	+	Consumer<? super T> action) {
4728	+	return cf.acceptEitherAsync(other, action); }
4729	+	public CompletionStage<Void> acceptEitherAsync
4730	+	(CompletionStage<? extends T> other,
4731	+	Consumer<? super T> action,
4732	+	Executor executor) {
4733	+	return cf.acceptEitherAsync(other, action, executor); }
4734	+	public CompletionStage<Void> runAfterEither
4735	+	(CompletionStage<?> other,
4736	+	Runnable action) {
4737	+	return cf.runAfterEither(other, action); }
4738	+	public CompletionStage<Void> runAfterEitherAsync
4739	+	(CompletionStage<?> other,
4740	+	Runnable action) {
4741	+	return cf.runAfterEitherAsync(other, action); }
4742	+	public CompletionStage<Void> runAfterEitherAsync
4743	+	(CompletionStage<?> other,
4744	+	Runnable action,
4745	+	Executor executor) {
4746	+	return cf.runAfterEitherAsync(other, action, executor); }
4747	+	public <U> CompletionStage<U> thenCompose
4748	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4749	+	return cf.thenCompose(fn); }
4750	+	public <U> CompletionStage<U> thenComposeAsync
4751	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4752	+	return cf.thenComposeAsync(fn); }
4753	+	public <U> CompletionStage<U> thenComposeAsync
4754	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4755	+	Executor executor) {
4756	+	return cf.thenComposeAsync(fn, executor); }
4757	+	public <U> CompletionStage<U> handle
4758	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4759	+	return cf.handle(fn); }
4760	+	public <U> CompletionStage<U> handleAsync
4761	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4762	+	return cf.handleAsync(fn); }
4763	+	public <U> CompletionStage<U> handleAsync
4764	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4765	+	Executor executor) {
4766	+	return cf.handleAsync(fn, executor); }
4767	+	public CompletionStage<T> whenComplete
4768	+	(BiConsumer<? super T, ? super Throwable> action) {
4769	+	return cf.whenComplete(action); }
4770	+	public CompletionStage<T> whenCompleteAsync
4771	+	(BiConsumer<? super T, ? super Throwable> action) {
4772	+	return cf.whenCompleteAsync(action); }
4773	+	public CompletionStage<T> whenCompleteAsync
4774	+	(BiConsumer<? super T, ? super Throwable> action,
4775	+	Executor executor) {
4776	+	return cf.whenCompleteAsync(action, executor); }
4777	+	public CompletionStage<T> exceptionally
4778	+	(Function<Throwable, ? extends T> fn) {
4779	+	return cf.exceptionally(fn); }
4780	+	}
4781	+
4782	+	/**
4783	+	* default-implemented exceptionallyAsync action completes with
4784	+	* function value on source exception
4785	+	*/
4786	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4787	+	for (boolean createIncomplete : new boolean[] { true, false })
4788	+	for (Integer v1 : new Integer[] { 1, null })
4789	+	{
4790	+	final AtomicInteger a = new AtomicInteger(0);
4791	+	final CFException ex = new CFException();
4792	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4793	+	final DelegatedCompletionStage<Integer> d =
4794	+	new DelegatedCompletionStage<Integer>(f);
4795	+	if (!createIncomplete) f.completeExceptionally(ex);
4796	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4797	+	((Throwable t) -> {
4798	+	threadAssertSame(t, ex);
4799	+	a.getAndIncrement();
4800	+	return v1;
4801	+	});
4802	+	if (createIncomplete) f.completeExceptionally(ex);
4803	+
4804	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4805	+	assertEquals(1, a.get());
4806	+	}}
4807	+
4808	+	/**
4809	+	* Under default implementation, if an "exceptionally action"
4810	+	* throws an exception, it completes exceptionally with that
4811	+	* exception
4812	+	*/
4813	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4814	+	for (boolean createIncomplete : new boolean[] { true, false })
4815	+	{
4816	+	final AtomicInteger a = new AtomicInteger(0);
4817	+	final CFException ex1 = new CFException();
4818	+	final CFException ex2 = new CFException();
4819	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4820	+	final DelegatedCompletionStage<Integer> d =
4821	+	new DelegatedCompletionStage<Integer>(f);
4822	+	if (!createIncomplete) f.completeExceptionally(ex1);
4823	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4824	+	((Throwable t) -> {
4825	+	threadAssertSame(t, ex1);
4826	+	a.getAndIncrement();
4827	+	throw ex2;
4828	+	});
4829	+	if (createIncomplete) f.completeExceptionally(ex1);
4830	+
4831	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4832	+	checkCompletedExceptionally(f, ex1);
4833	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4834	+	assertEquals(1, a.get());
4835	+	}}
4836	+
4837	+	/**
4838	+	* default exceptionallyCompose result completes normally after normal
4839	+	* completion of source
4840	+	*/
4841	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4842	+	for (boolean createIncomplete : new boolean[] { true, false })
4843	+	for (Integer v1 : new Integer[] { 1, null })
4844	+	{
4845	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4846	+	final ExceptionalCompletableFutureFunction r =
4847	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4848	+	final DelegatedCompletionStage<Integer> d =
4849	+	new DelegatedCompletionStage<Integer>(f);
4850	+	if (!createIncomplete) assertTrue(f.complete(v1));
4851	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4852	+	if (createIncomplete) assertTrue(f.complete(v1));
4853	+
4854	+	checkCompletedNormally(f, v1);
4855	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4856	+	r.assertNotInvoked();
4857	+	}}
4858	+
4859	+	/**
4860	+	* default-implemented exceptionallyCompose result completes
4861	+	* normally after exceptional completion of source
4862	+	*/
4863	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4864	+	for (boolean createIncomplete : new boolean[] { true, false })
4865	+	{
4866	+	final CFException ex = new CFException();
4867	+	final ExceptionalCompletableFutureFunction r =
4868	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4869	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4870	+	final DelegatedCompletionStage<Integer> d =
4871	+	new DelegatedCompletionStage<Integer>(f);
4872	+	if (!createIncomplete) f.completeExceptionally(ex);
4873	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4874	+	if (createIncomplete) f.completeExceptionally(ex);
4875	+
4876	+	checkCompletedExceptionally(f, ex);
4877	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4878	+	r.assertInvoked();
4879	+	}}
4880	+
4881	+	/**
4882	+	* default-implemented exceptionallyCompose completes
4883	+	* exceptionally on exception if action does
4884	+	*/
4885	+	public void testDefaultExceptionallyCompose_actionFailed() {
4886	+	for (boolean createIncomplete : new boolean[] { true, false })
4887	+	for (Integer v1 : new Integer[] { 1, null })
4888	+	{
4889	+	final CFException ex = new CFException();
4890	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4891	+	final FailingExceptionalCompletableFutureFunction r
4892	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4893	+	final DelegatedCompletionStage<Integer> d =
4894	+	new DelegatedCompletionStage<Integer>(f);
4895	+	if (!createIncomplete) f.completeExceptionally(ex);
4896	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4897	+	if (createIncomplete) f.completeExceptionally(ex);
4898	+
4899	+	checkCompletedExceptionally(f, ex);
4900	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4901	+	r.assertInvoked();
4902	+	}}
4903	+
4904	+	/**
4905	+	* default exceptionallyComposeAsync result completes normally after normal
4906	+	* completion of source
4907	+	*/
4908	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4909	+	for (boolean createIncomplete : new boolean[] { true, false })
4910	+	for (Integer v1 : new Integer[] { 1, null })
4911	+	{
4912	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4913	+	final ExceptionalCompletableFutureFunction r =
4914	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4915	+	final DelegatedCompletionStage<Integer> d =
4916	+	new DelegatedCompletionStage<Integer>(f);
4917	+	if (!createIncomplete) assertTrue(f.complete(v1));
4918	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4919	+	if (createIncomplete) assertTrue(f.complete(v1));
4920	+
4921	+	checkCompletedNormally(f, v1);
4922	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4923	+	r.assertNotInvoked();
4924	+	}}
4925	+
4926	+	/**
4927	+	* default-implemented exceptionallyComposeAsync result completes
4928	+	* normally after exceptional completion of source
4929	+	*/
4930	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4931	+	for (boolean createIncomplete : new boolean[] { true, false })
4932	+	{
4933	+	final CFException ex = new CFException();
4934	+	final ExceptionalCompletableFutureFunction r =
4935	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4936	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4937	+	final DelegatedCompletionStage<Integer> d =
4938	+	new DelegatedCompletionStage<Integer>(f);
4939	+	if (!createIncomplete) f.completeExceptionally(ex);
4940	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4941	+	if (createIncomplete) f.completeExceptionally(ex);
4942	+
4943	+	checkCompletedExceptionally(f, ex);
4944	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4945	+	r.assertInvoked();
4946	+	}}
4947	+
4948	+	/**
4949	+	* default-implemented exceptionallyComposeAsync completes
4950	+	* exceptionally on exception if action does
4951	+	*/
4952	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4953	+	for (boolean createIncomplete : new boolean[] { true, false })
4954	+	for (Integer v1 : new Integer[] { 1, null })
4955	+	{
4956	+	final CFException ex = new CFException();
4957	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4958	+	final FailingExceptionalCompletableFutureFunction r
4959	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4960	+	final DelegatedCompletionStage<Integer> d =
4961	+	new DelegatedCompletionStage<Integer>(f);
4962	+	if (!createIncomplete) f.completeExceptionally(ex);
4963	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4964	+	if (createIncomplete) f.completeExceptionally(ex);
4965	+
4966	+	checkCompletedExceptionally(f, ex);
4967	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4968	+	r.assertInvoked();
4969	+	}}
4970	+
4971	+
4972	+	/**
4973	+	* default exceptionallyComposeAsync result completes normally after normal
4974	+	* completion of source
4975	+	*/
4976	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4977	+	for (boolean createIncomplete : new boolean[] { true, false })
4978	+	for (Integer v1 : new Integer[] { 1, null })
4979	+	{
4980	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4981	+	final ExceptionalCompletableFutureFunction r =
4982	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4983	+	final DelegatedCompletionStage<Integer> d =
4984	+	new DelegatedCompletionStage<Integer>(f);
4985	+	if (!createIncomplete) assertTrue(f.complete(v1));
4986	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4987	+	if (createIncomplete) assertTrue(f.complete(v1));
4988	+
4989	+	checkCompletedNormally(f, v1);
4990	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4991	+	r.assertNotInvoked();
4992	+	}}
4993	+
4994	+	/**
4995	+	* default-implemented exceptionallyComposeAsync result completes
4996	+	* normally after exceptional completion of source
4997	+	*/
4998	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
4999	+	for (boolean createIncomplete : new boolean[] { true, false })
5000	+	{
5001	+	final CFException ex = new CFException();
5002	+	final ExceptionalCompletableFutureFunction r =
5003	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5004	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5005	+	final DelegatedCompletionStage<Integer> d =
5006	+	new DelegatedCompletionStage<Integer>(f);
5007	+	if (!createIncomplete) f.completeExceptionally(ex);
5008	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5009	+	if (createIncomplete) f.completeExceptionally(ex);
5010	+
5011	+	checkCompletedExceptionally(f, ex);
5012	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5013	+	r.assertInvoked();
5014	+	}}
5015	+
5016	+	/**
5017	+	* default-implemented exceptionallyComposeAsync completes
5018	+	* exceptionally on exception if action does
5019	+	*/
5020	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5021	+	for (boolean createIncomplete : new boolean[] { true, false })
5022	+	for (Integer v1 : new Integer[] { 1, null })
5023	+	{
5024	+	final CFException ex = new CFException();
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final FailingExceptionalCompletableFutureFunction r
5027	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5028	+	final DelegatedCompletionStage<Integer> d =
5029	+	new DelegatedCompletionStage<Integer>(f);
5030	+	if (!createIncomplete) f.completeExceptionally(ex);
5031	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5032	+	if (createIncomplete) f.completeExceptionally(ex);
5033	+
5034	+	checkCompletedExceptionally(f, ex);
5035	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5036	+	r.assertInvoked();
5037	+	}}
5038	+
5039		}

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