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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.183 by jsr166, Wed Jan 4 06:09:58 2017 UTC vs.
Revision 1.210 by jsr166, Mon Sep 24 00:20:46 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		{
854	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
859	<	a.getAndIncrement();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933		threadFail("should not be called");
934		return null;            // unreached
935		});
#	Line 864 | Line 937 | public class CompletableFutureTest exten
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
867	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 872 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 879 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.SYNC.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 897 | Line 970 | public class CompletableFutureTest exten
970		* exceptionally with that exception
971		*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
#	Line 904 | Line 978 | public class CompletableFutureTest exten
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.SYNC.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 1242 | Line 1316 | public class CompletableFutureTest exten
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320		public void testRunAsync_rejectingExecutor() {
1321		CountingRejectingExecutor e = new CountingRejectingExecutor();
1322		try {
#	Line 1288 | Line 1363 | public class CompletableFutureTest exten
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367		public void testSupplyAsync_rejectingExecutor() {
1368		CountingRejectingExecutor e = new CountingRejectingExecutor();
1369		try {
#	Line 2562 | Line 2638 | public class CompletableFutureTest exten
2638
2639		// unspecified behavior - both source completions available
2640		try {
2641	<	assertEquals(null, h0.join());
2641	>	assertNull(h0.join());
2642		rs[0].assertValue(v1);
2643		} catch (CompletionException ok) {
2644		checkCompletedWithWrappedException(h0, ex);
2645		rs[0].assertNotInvoked();
2646		}
2647		try {
2648	<	assertEquals(null, h1.join());
2648	>	assertNull(h1.join());
2649		rs[1].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h1, ex);
2652		rs[1].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h2.join());
2655	>	assertNull(h2.join());
2656		rs[2].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h2, ex);
2659		rs[2].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h3.join());
2662	>	assertNull(h3.join());
2663		rs[3].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h3, ex);
#	Line 2822 | Line 2898 | public class CompletableFutureTest exten
2898
2899		// unspecified behavior - both source completions available
2900		try {
2901	<	assertEquals(null, h0.join());
2901	>	assertNull(h0.join());
2902		rs[0].assertInvoked();
2903		} catch (CompletionException ok) {
2904		checkCompletedWithWrappedException(h0, ex);
2905		rs[0].assertNotInvoked();
2906		}
2907		try {
2908	<	assertEquals(null, h1.join());
2908	>	assertNull(h1.join());
2909		rs[1].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h1, ex);
2912		rs[1].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h2.join());
2915	>	assertNull(h2.join());
2916		rs[2].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h2, ex);
2919		rs[2].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h3.join());
2922	>	assertNull(h3.join());
2923		rs[3].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h3, ex);
#	Line 3075 | Line 3151 | public class CompletableFutureTest exten
3151		checkCompletedNormally(f, v1);
3152		}}
3153
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	for (Integer v1 : new Integer[] { 1, null })
3203	+	{
3204	+	final CFException ex = new CFException();
3205	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3206	+	final FailingExceptionalCompletableFutureFunction r
3207	+	= new FailingExceptionalCompletableFutureFunction(m);
3208	+	if (!createIncomplete) f.completeExceptionally(ex);
3209	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3210	+	if (createIncomplete) f.completeExceptionally(ex);
3211	+
3212	+	checkCompletedExceptionally(f, ex);
3213	+	checkCompletedWithWrappedException(g, r.ex);
3214	+	r.assertInvoked();
3215	+	}}
3216	+
3217	+	/**
3218	+	* thenComposeExceptionally result completes exceptionally if the
3219	+	* result of the action does
3220	+	*/
3221	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3222	+	for (ExecutionMode m : ExecutionMode.values())
3223	+	for (int order = 0; order < 6; order++)
3224	+	for (Integer v1 : new Integer[] { 1, null })
3225	+	{
3226	+	final CFException ex0 = new CFException();
3227	+	final CFException ex = new CFException();
3228	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3229	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3230	+	final CompletableFuture<Integer> h;
3231	+	// Test all permutations of orders
3232	+	switch (order) {
3233	+	case 0:
3234	+	assertTrue(f.completeExceptionally(ex0));
3235	+	assertTrue(g.completeExceptionally(ex));
3236	+	h = m.exceptionallyCompose(f, (x -> g));
3237	+	break;
3238	+	case 1:
3239	+	assertTrue(f.completeExceptionally(ex0));
3240	+	h = m.exceptionallyCompose(f, (x -> g));
3241	+	assertTrue(g.completeExceptionally(ex));
3242	+	break;
3243	+	case 2:
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	assertTrue(f.completeExceptionally(ex0));
3246	+	h = m.exceptionallyCompose(f, (x -> g));
3247	+	break;
3248	+	case 3:
3249	+	assertTrue(g.completeExceptionally(ex));
3250	+	h = m.exceptionallyCompose(f, (x -> g));
3251	+	assertTrue(f.completeExceptionally(ex0));
3252	+	break;
3253	+	case 4:
3254	+	h = m.exceptionallyCompose(f, (x -> g));
3255	+	assertTrue(f.completeExceptionally(ex0));
3256	+	assertTrue(g.completeExceptionally(ex));
3257	+	break;
3258	+	case 5:
3259	+	h = m.exceptionallyCompose(f, (x -> g));
3260	+	assertTrue(f.completeExceptionally(ex0));
3261	+	assertTrue(g.completeExceptionally(ex));
3262	+	break;
3263	+	default: throw new AssertionError();
3264	+	}
3265	+
3266	+	checkCompletedExceptionally(g, ex);
3267	+	checkCompletedWithWrappedException(h, ex);
3268	+	checkCompletedExceptionally(f, ex0);
3269	+	}}
3270	+
3271		// other static methods
3272
3273		/**
#	Line 3238 | Line 3431 | public class CompletableFutureTest exten
3431		/**
3432		* Completion methods throw NullPointerException with null arguments
3433		*/
3434	+	@SuppressWarnings("FutureReturnValueIgnored")
3435		public void testNPE() {
3436		CompletableFuture<Integer> f = new CompletableFuture<>();
3437		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 4174 | Line 4368 | public class CompletableFutureTest exten
4368		static void assertZero(CompletableFuture<?> f) {
4369		try {
4370		f.getNow(null);
4371	<	throw new AssertionFailedError("should throw");
4371	>	throw new AssertionError("should throw");
4372		} catch (CompletionException success) {
4373		assertTrue(success.getCause() instanceof ZeroException);
4374		}
#	Line 4299 | Line 4493 | public class CompletableFutureTest exten
4493		}
4494
4495		/** Test long recursive chains of CompletableFutures with cascading completions */
4496	+	@SuppressWarnings("FutureReturnValueIgnored")
4497		public void testRecursiveChains() throws Throwable {
4498		for (ExecutionMode m : ExecutionMode.values())
4499		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4323 | Line 4518 | public class CompletableFutureTest exten
4518		* A single CompletableFuture with many dependents.
4519		* A demo of scalability - runtime is O(n).
4520		*/
4521	+	@SuppressWarnings("FutureReturnValueIgnored")
4522		public void testManyDependents() throws Throwable {
4523		final int n = expensiveTests ? 1_000_000 : 10;
4524		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4352 | Line 4548 | public class CompletableFutureTest exten
4548		}
4549
4550		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4551	+	@SuppressWarnings("FutureReturnValueIgnored")
4552		public void testCoCompletionGarbageRetention() throws Throwable {
4553		final int n = expensiveTests ? 1_000_000 : 10;
4554		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4370 | Line 4567 | public class CompletableFutureTest exten
4567		f.complete(null);
4568
4569		f = new CompletableFuture<>();
4570	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4570	>	CompletableFuture.anyOf(f, incomplete);
4571		f.complete(null);
4572		}
4573
#	Line 4388 | Line 4585 | public class CompletableFutureTest exten
4585		f.complete(null);
4586
4587		f = new CompletableFuture<>();
4588	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4588	>	CompletableFuture.anyOf(incomplete, f);
4589		f.complete(null);
4590		}
4591		}
#	Line 4482 | Line 4679 | public class CompletableFutureTest exten
4679		//         return stage.toCompletableFuture().copy().isDone();
4680		//     }
4681
4682	+	// For testing default implementations
4683	+	// Only non-default interface methods defined.
4684	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4685	+	final CompletableFuture<T> cf;
4686	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4687	+	public CompletableFuture<T> toCompletableFuture() {
4688	+	return cf; }
4689	+	public CompletionStage<Void> thenRun
4690	+	(Runnable action) {
4691	+	return cf.thenRun(action); }
4692	+	public CompletionStage<Void> thenRunAsync
4693	+	(Runnable action) {
4694	+	return cf.thenRunAsync(action); }
4695	+	public CompletionStage<Void> thenRunAsync
4696	+	(Runnable action,
4697	+	Executor executor) {
4698	+	return cf.thenRunAsync(action, executor); }
4699	+	public CompletionStage<Void> thenAccept
4700	+	(Consumer<? super T> action) {
4701	+	return cf.thenAccept(action); }
4702	+	public CompletionStage<Void> thenAcceptAsync
4703	+	(Consumer<? super T> action) {
4704	+	return cf.thenAcceptAsync(action); }
4705	+	public CompletionStage<Void> thenAcceptAsync
4706	+	(Consumer<? super T> action,
4707	+	Executor executor) {
4708	+	return cf.thenAcceptAsync(action, executor); }
4709	+	public <U> CompletionStage<U> thenApply
4710	+	(Function<? super T,? extends U> a) {
4711	+	return cf.thenApply(a); }
4712	+	public <U> CompletionStage<U> thenApplyAsync
4713	+	(Function<? super T,? extends U> fn) {
4714	+	return cf.thenApplyAsync(fn); }
4715	+	public <U> CompletionStage<U> thenApplyAsync
4716	+	(Function<? super T,? extends U> fn,
4717	+	Executor executor) {
4718	+	return cf.thenApplyAsync(fn, executor); }
4719	+	public <U,V> CompletionStage<V> thenCombine
4720	+	(CompletionStage<? extends U> other,
4721	+	BiFunction<? super T,? super U,? extends V> fn) {
4722	+	return cf.thenCombine(other, fn); }
4723	+	public <U,V> CompletionStage<V> thenCombineAsync
4724	+	(CompletionStage<? extends U> other,
4725	+	BiFunction<? super T,? super U,? extends V> fn) {
4726	+	return cf.thenCombineAsync(other, fn); }
4727	+	public <U,V> CompletionStage<V> thenCombineAsync
4728	+	(CompletionStage<? extends U> other,
4729	+	BiFunction<? super T,? super U,? extends V> fn,
4730	+	Executor executor) {
4731	+	return cf.thenCombineAsync(other, fn, executor); }
4732	+	public <U> CompletionStage<Void> thenAcceptBoth
4733	+	(CompletionStage<? extends U> other,
4734	+	BiConsumer<? super T, ? super U> action) {
4735	+	return cf.thenAcceptBoth(other, action); }
4736	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4737	+	(CompletionStage<? extends U> other,
4738	+	BiConsumer<? super T, ? super U> action) {
4739	+	return cf.thenAcceptBothAsync(other, action); }
4740	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4741	+	(CompletionStage<? extends U> other,
4742	+	BiConsumer<? super T, ? super U> action,
4743	+	Executor executor) {
4744	+	return cf.thenAcceptBothAsync(other, action, executor); }
4745	+	public CompletionStage<Void> runAfterBoth
4746	+	(CompletionStage<?> other,
4747	+	Runnable action) {
4748	+	return cf.runAfterBoth(other, action); }
4749	+	public CompletionStage<Void> runAfterBothAsync
4750	+	(CompletionStage<?> other,
4751	+	Runnable action) {
4752	+	return cf.runAfterBothAsync(other, action); }
4753	+	public CompletionStage<Void> runAfterBothAsync
4754	+	(CompletionStage<?> other,
4755	+	Runnable action,
4756	+	Executor executor) {
4757	+	return cf.runAfterBothAsync(other, action, executor); }
4758	+	public <U> CompletionStage<U> applyToEither
4759	+	(CompletionStage<? extends T> other,
4760	+	Function<? super T, U> fn) {
4761	+	return cf.applyToEither(other, fn); }
4762	+	public <U> CompletionStage<U> applyToEitherAsync
4763	+	(CompletionStage<? extends T> other,
4764	+	Function<? super T, U> fn) {
4765	+	return cf.applyToEitherAsync(other, fn); }
4766	+	public <U> CompletionStage<U> applyToEitherAsync
4767	+	(CompletionStage<? extends T> other,
4768	+	Function<? super T, U> fn,
4769	+	Executor executor) {
4770	+	return cf.applyToEitherAsync(other, fn, executor); }
4771	+	public CompletionStage<Void> acceptEither
4772	+	(CompletionStage<? extends T> other,
4773	+	Consumer<? super T> action) {
4774	+	return cf.acceptEither(other, action); }
4775	+	public CompletionStage<Void> acceptEitherAsync
4776	+	(CompletionStage<? extends T> other,
4777	+	Consumer<? super T> action) {
4778	+	return cf.acceptEitherAsync(other, action); }
4779	+	public CompletionStage<Void> acceptEitherAsync
4780	+	(CompletionStage<? extends T> other,
4781	+	Consumer<? super T> action,
4782	+	Executor executor) {
4783	+	return cf.acceptEitherAsync(other, action, executor); }
4784	+	public CompletionStage<Void> runAfterEither
4785	+	(CompletionStage<?> other,
4786	+	Runnable action) {
4787	+	return cf.runAfterEither(other, action); }
4788	+	public CompletionStage<Void> runAfterEitherAsync
4789	+	(CompletionStage<?> other,
4790	+	Runnable action) {
4791	+	return cf.runAfterEitherAsync(other, action); }
4792	+	public CompletionStage<Void> runAfterEitherAsync
4793	+	(CompletionStage<?> other,
4794	+	Runnable action,
4795	+	Executor executor) {
4796	+	return cf.runAfterEitherAsync(other, action, executor); }
4797	+	public <U> CompletionStage<U> thenCompose
4798	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4799	+	return cf.thenCompose(fn); }
4800	+	public <U> CompletionStage<U> thenComposeAsync
4801	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4802	+	return cf.thenComposeAsync(fn); }
4803	+	public <U> CompletionStage<U> thenComposeAsync
4804	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4805	+	Executor executor) {
4806	+	return cf.thenComposeAsync(fn, executor); }
4807	+	public <U> CompletionStage<U> handle
4808	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4809	+	return cf.handle(fn); }
4810	+	public <U> CompletionStage<U> handleAsync
4811	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4812	+	return cf.handleAsync(fn); }
4813	+	public <U> CompletionStage<U> handleAsync
4814	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4815	+	Executor executor) {
4816	+	return cf.handleAsync(fn, executor); }
4817	+	public CompletionStage<T> whenComplete
4818	+	(BiConsumer<? super T, ? super Throwable> action) {
4819	+	return cf.whenComplete(action); }
4820	+	public CompletionStage<T> whenCompleteAsync
4821	+	(BiConsumer<? super T, ? super Throwable> action) {
4822	+	return cf.whenCompleteAsync(action); }
4823	+	public CompletionStage<T> whenCompleteAsync
4824	+	(BiConsumer<? super T, ? super Throwable> action,
4825	+	Executor executor) {
4826	+	return cf.whenCompleteAsync(action, executor); }
4827	+	public CompletionStage<T> exceptionally
4828	+	(Function<Throwable, ? extends T> fn) {
4829	+	return cf.exceptionally(fn); }
4830	+	}
4831	+
4832	+	/**
4833	+	* default-implemented exceptionallyAsync action is not invoked when
4834	+	* source completes normally, and source result is propagated
4835	+	*/
4836	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4837	+	for (boolean createIncomplete : new boolean[] { true, false })
4838	+	for (Integer v1 : new Integer[] { 1, null })
4839	+	{
4840	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4841	+	final DelegatedCompletionStage<Integer> d =
4842	+	new DelegatedCompletionStage<Integer>(f);
4843	+	if (!createIncomplete) assertTrue(f.complete(v1));
4844	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4845	+	((Throwable t) -> {
4846	+	threadFail("should not be called");
4847	+	return null;            // unreached
4848	+	});
4849	+	if (createIncomplete) assertTrue(f.complete(v1));
4850	+
4851	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4852	+	}}
4853	+
4854	+	/**
4855	+	* default-implemented exceptionallyAsync action completes with
4856	+	* function value on source exception
4857	+	*/
4858	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4859	+	for (boolean createIncomplete : new boolean[] { true, false })
4860	+	for (Integer v1 : new Integer[] { 1, null })
4861	+	{
4862	+	final AtomicInteger a = new AtomicInteger(0);
4863	+	final CFException ex = new CFException();
4864	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4865	+	final DelegatedCompletionStage<Integer> d =
4866	+	new DelegatedCompletionStage<Integer>(f);
4867	+	if (!createIncomplete) f.completeExceptionally(ex);
4868	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4869	+	((Throwable t) -> {
4870	+	threadAssertSame(t, ex);
4871	+	a.getAndIncrement();
4872	+	return v1;
4873	+	});
4874	+	if (createIncomplete) f.completeExceptionally(ex);
4875	+
4876	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4877	+	assertEquals(1, a.get());
4878	+	}}
4879	+
4880	+	/**
4881	+	* Under default implementation, if an "exceptionally action"
4882	+	* throws an exception, it completes exceptionally with that
4883	+	* exception
4884	+	*/
4885	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4886	+	for (boolean createIncomplete : new boolean[] { true, false })
4887	+	{
4888	+	final AtomicInteger a = new AtomicInteger(0);
4889	+	final CFException ex1 = new CFException();
4890	+	final CFException ex2 = new CFException();
4891	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4892	+	final DelegatedCompletionStage<Integer> d =
4893	+	new DelegatedCompletionStage<Integer>(f);
4894	+	if (!createIncomplete) f.completeExceptionally(ex1);
4895	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4896	+	((Throwable t) -> {
4897	+	threadAssertSame(t, ex1);
4898	+	a.getAndIncrement();
4899	+	throw ex2;
4900	+	});
4901	+	if (createIncomplete) f.completeExceptionally(ex1);
4902	+
4903	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4904	+	checkCompletedExceptionally(f, ex1);
4905	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4906	+	assertEquals(1, a.get());
4907	+	}}
4908	+
4909	+	/**
4910	+	* default exceptionallyCompose result completes normally after normal
4911	+	* completion of source
4912	+	*/
4913	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4914	+	for (boolean createIncomplete : new boolean[] { true, false })
4915	+	for (Integer v1 : new Integer[] { 1, null })
4916	+	{
4917	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4918	+	final ExceptionalCompletableFutureFunction r =
4919	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4920	+	final DelegatedCompletionStage<Integer> d =
4921	+	new DelegatedCompletionStage<Integer>(f);
4922	+	if (!createIncomplete) assertTrue(f.complete(v1));
4923	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4924	+	if (createIncomplete) assertTrue(f.complete(v1));
4925	+
4926	+	checkCompletedNormally(f, v1);
4927	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4928	+	r.assertNotInvoked();
4929	+	}}
4930	+
4931	+	/**
4932	+	* default-implemented exceptionallyCompose result completes
4933	+	* normally after exceptional completion of source
4934	+	*/
4935	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4936	+	for (boolean createIncomplete : new boolean[] { true, false })
4937	+	{
4938	+	final CFException ex = new CFException();
4939	+	final ExceptionalCompletableFutureFunction r =
4940	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4941	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4942	+	final DelegatedCompletionStage<Integer> d =
4943	+	new DelegatedCompletionStage<Integer>(f);
4944	+	if (!createIncomplete) f.completeExceptionally(ex);
4945	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4946	+	if (createIncomplete) f.completeExceptionally(ex);
4947	+
4948	+	checkCompletedExceptionally(f, ex);
4949	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4950	+	r.assertInvoked();
4951	+	}}
4952	+
4953	+	/**
4954	+	* default-implemented exceptionallyCompose completes
4955	+	* exceptionally on exception if action does
4956	+	*/
4957	+	public void testDefaultExceptionallyCompose_actionFailed() {
4958	+	for (boolean createIncomplete : new boolean[] { true, false })
4959	+	for (Integer v1 : new Integer[] { 1, null })
4960	+	{
4961	+	final CFException ex = new CFException();
4962	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4963	+	final FailingExceptionalCompletableFutureFunction r
4964	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4965	+	final DelegatedCompletionStage<Integer> d =
4966	+	new DelegatedCompletionStage<Integer>(f);
4967	+	if (!createIncomplete) f.completeExceptionally(ex);
4968	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4969	+	if (createIncomplete) f.completeExceptionally(ex);
4970	+
4971	+	checkCompletedExceptionally(f, ex);
4972	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4973	+	r.assertInvoked();
4974	+	}}
4975	+
4976	+	/**
4977	+	* default exceptionallyComposeAsync result completes normally after normal
4978	+	* completion of source
4979	+	*/
4980	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4981	+	for (boolean createIncomplete : new boolean[] { true, false })
4982	+	for (Integer v1 : new Integer[] { 1, null })
4983	+	{
4984	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4985	+	final ExceptionalCompletableFutureFunction r =
4986	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4987	+	final DelegatedCompletionStage<Integer> d =
4988	+	new DelegatedCompletionStage<Integer>(f);
4989	+	if (!createIncomplete) assertTrue(f.complete(v1));
4990	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4991	+	if (createIncomplete) assertTrue(f.complete(v1));
4992	+
4993	+	checkCompletedNormally(f, v1);
4994	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4995	+	r.assertNotInvoked();
4996	+	}}
4997	+
4998	+	/**
4999	+	* default-implemented exceptionallyComposeAsync result completes
5000	+	* normally after exceptional completion of source
5001	+	*/
5002	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5003	+	for (boolean createIncomplete : new boolean[] { true, false })
5004	+	{
5005	+	final CFException ex = new CFException();
5006	+	final ExceptionalCompletableFutureFunction r =
5007	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5008	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5009	+	final DelegatedCompletionStage<Integer> d =
5010	+	new DelegatedCompletionStage<Integer>(f);
5011	+	if (!createIncomplete) f.completeExceptionally(ex);
5012	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5013	+	if (createIncomplete) f.completeExceptionally(ex);
5014	+
5015	+	checkCompletedExceptionally(f, ex);
5016	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5017	+	r.assertInvoked();
5018	+	}}
5019	+
5020	+	/**
5021	+	* default-implemented exceptionallyComposeAsync completes
5022	+	* exceptionally on exception if action does
5023	+	*/
5024	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5025	+	for (boolean createIncomplete : new boolean[] { true, false })
5026	+	for (Integer v1 : new Integer[] { 1, null })
5027	+	{
5028	+	final CFException ex = new CFException();
5029	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5030	+	final FailingExceptionalCompletableFutureFunction r
5031	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5032	+	final DelegatedCompletionStage<Integer> d =
5033	+	new DelegatedCompletionStage<Integer>(f);
5034	+	if (!createIncomplete) f.completeExceptionally(ex);
5035	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5036	+	if (createIncomplete) f.completeExceptionally(ex);
5037	+
5038	+	checkCompletedExceptionally(f, ex);
5039	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5040	+	r.assertInvoked();
5041	+	}}
5042	+
5043	+
5044	+	/**
5045	+	* default exceptionallyComposeAsync result completes normally after normal
5046	+	* completion of source
5047	+	*/
5048	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5049	+	for (boolean createIncomplete : new boolean[] { true, false })
5050	+	for (Integer v1 : new Integer[] { 1, null })
5051	+	{
5052	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5053	+	final ExceptionalCompletableFutureFunction r =
5054	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5055	+	final DelegatedCompletionStage<Integer> d =
5056	+	new DelegatedCompletionStage<Integer>(f);
5057	+	if (!createIncomplete) assertTrue(f.complete(v1));
5058	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5059	+	if (createIncomplete) assertTrue(f.complete(v1));
5060	+
5061	+	checkCompletedNormally(f, v1);
5062	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5063	+	r.assertNotInvoked();
5064	+	}}
5065	+
5066	+	/**
5067	+	* default-implemented exceptionallyComposeAsync result completes
5068	+	* normally after exceptional completion of source
5069	+	*/
5070	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5071	+	for (boolean createIncomplete : new boolean[] { true, false })
5072	+	{
5073	+	final CFException ex = new CFException();
5074	+	final ExceptionalCompletableFutureFunction r =
5075	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5076	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5077	+	final DelegatedCompletionStage<Integer> d =
5078	+	new DelegatedCompletionStage<Integer>(f);
5079	+	if (!createIncomplete) f.completeExceptionally(ex);
5080	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5081	+	if (createIncomplete) f.completeExceptionally(ex);
5082	+
5083	+	checkCompletedExceptionally(f, ex);
5084	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5085	+	r.assertInvoked();
5086	+	}}
5087	+
5088	+	/**
5089	+	* default-implemented exceptionallyComposeAsync completes
5090	+	* exceptionally on exception if action does
5091	+	*/
5092	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5093	+	for (boolean createIncomplete : new boolean[] { true, false })
5094	+	for (Integer v1 : new Integer[] { 1, null })
5095	+	{
5096	+	final CFException ex = new CFException();
5097	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5098	+	final FailingExceptionalCompletableFutureFunction r
5099	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5100	+	final DelegatedCompletionStage<Integer> d =
5101	+	new DelegatedCompletionStage<Integer>(f);
5102	+	if (!createIncomplete) f.completeExceptionally(ex);
5103	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5104	+	if (createIncomplete) f.completeExceptionally(ex);
5105	+
5106	+	checkCompletedExceptionally(f, ex);
5107	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5108	+	r.assertInvoked();
5109	+	}}
5110	+
5111		}

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