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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.46 by jsr166, Mon Jun 2 17:41:22 2014 UTC vs.
Revision 1.138 by jsr166, Sun Nov 15 23:31:51 2015 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31	+	import java.util.concurrent.ForkJoinPool;
32	+	import java.util.concurrent.ForkJoinTask;
33		import java.util.concurrent.TimeoutException;
34	+	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
23	<	import static java.util.concurrent.TimeUnit.SECONDS;
24	<	import java.util.*;
25	<	import java.util.function.Supplier;
26	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
28	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 42 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 55 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
60	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
79		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 73 | Line 89 | public class CompletableFutureTest exten
89		assertTrue(f.toString().contains("[Completed normally]"));
90		}
91
92	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	<	try {
94	<	f.get(LONG_DELAY_MS, MILLISECONDS);
95	<	shouldThrow();
96	<	} catch (ExecutionException success) {
97	<	assertTrue(success.getCause() instanceof CFException);
98	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
99	<	try {
100	<	f.join();
101	<	shouldThrow();
102	<	} catch (CompletionException success) {
103	<	assertTrue(success.getCause() instanceof CFException);
104	<	}
105	<	try {
106	<	f.getNow(null);
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
93	<	assertTrue(success.getCause() instanceof CFException);
92	>	/**
93	>	* Returns the "raw" internal exceptional completion of f,
94	>	* without any additional wrapping with CompletionException.
95	>	*/
96	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
97	>	// handle (and whenComplete) can distinguish between "direct"
98	>	// and "wrapped" exceptional completion
99	>	return f.handle((U u, Throwable t) -> t).join();
100	>	}
101	>
102	>	void checkCompletedExceptionally(CompletableFuture<?> f,
103	>	boolean wrapped,
104	>	Consumer<Throwable> checker) {
105	>	Throwable cause = exceptionalCompletion(f);
106	>	if (wrapped) {
107	>	assertTrue(cause instanceof CompletionException);
108	>	cause = cause.getCause();
109		}
110	<	try {
96	<	f.get();
97	<	shouldThrow();
98	<	} catch (ExecutionException success) {
99	<	assertTrue(success.getCause() instanceof CFException);
100	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
101	<	assertTrue(f.isDone());
102	<	assertFalse(f.isCancelled());
103	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
104	<	}
110	>	checker.accept(cause);
111
112	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
107	<	CFException ex) {
112	>	long startTime = System.nanoTime();
113		try {
114		f.get(LONG_DELAY_MS, MILLISECONDS);
115		shouldThrow();
116		} catch (ExecutionException success) {
117	<	assertSame(ex, success.getCause());
117	>	assertSame(cause, success.getCause());
118		} catch (Throwable fail) { threadUnexpectedException(fail); }
119	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
120	+
121		try {
122		f.join();
123		shouldThrow();
124		} catch (CompletionException success) {
125	<	assertSame(ex, success.getCause());
126	<	}
125	>	assertSame(cause, success.getCause());
126	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
127	>
128		try {
129		f.getNow(null);
130		shouldThrow();
131		} catch (CompletionException success) {
132	<	assertSame(ex, success.getCause());
133	<	}
132	>	assertSame(cause, success.getCause());
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>
135		try {
136		f.get();
137		shouldThrow();
138		} catch (ExecutionException success) {
139	<	assertSame(ex, success.getCause());
139	>	assertSame(cause, success.getCause());
140		} catch (Throwable fail) { threadUnexpectedException(fail); }
141	<	assertTrue(f.isDone());
141	>
142		assertFalse(f.isCancelled());
143	+	assertTrue(f.isDone());
144	+	assertTrue(f.isCompletedExceptionally());
145		assertTrue(f.toString().contains("[Completed exceptionally]"));
146		}
147
148	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
149	+	checkCompletedExceptionally(f, true,
150	+	(t) -> assertTrue(t instanceof CFException));
151	+	}
152	+
153	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
154	+	checkCompletedExceptionally(f, true,
155	+	(t) -> assertTrue(t instanceof CancellationException));
156	+	}
157	+
158	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
159	+	checkCompletedExceptionally(f, false,
160	+	(t) -> assertTrue(t instanceof TimeoutException));
161	+	}
162	+
163	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
164	+	Throwable ex) {
165	+	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
166	+	}
167	+
168	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
169	+	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
170	+	}
171	+
172		void checkCancelled(CompletableFuture<?> f) {
173	+	long startTime = System.nanoTime();
174		try {
175		f.get(LONG_DELAY_MS, MILLISECONDS);
176		shouldThrow();
177		} catch (CancellationException success) {
178		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
180	+
181		try {
182		f.join();
183		shouldThrow();
#	Line 153 | Line 191 | public class CompletableFutureTest exten
191		shouldThrow();
192		} catch (CancellationException success) {
193		} catch (Throwable fail) { threadUnexpectedException(fail); }
156	–	assertTrue(f.isDone());
157	–	assertTrue(f.isCompletedExceptionally());
158	–	assertTrue(f.isCancelled());
159	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
160	–	}
194
195	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
196	<	try {
164	<	f.get(LONG_DELAY_MS, MILLISECONDS);
165	<	shouldThrow();
166	<	} catch (ExecutionException success) {
167	<	assertTrue(success.getCause() instanceof CancellationException);
168	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
169	<	try {
170	<	f.join();
171	<	shouldThrow();
172	<	} catch (CompletionException success) {
173	<	assertTrue(success.getCause() instanceof CancellationException);
174	<	}
175	<	try {
176	<	f.getNow(null);
177	<	shouldThrow();
178	<	} catch (CompletionException success) {
179	<	assertTrue(success.getCause() instanceof CancellationException);
180	<	}
181	<	try {
182	<	f.get();
183	<	shouldThrow();
184	<	} catch (ExecutionException success) {
185	<	assertTrue(success.getCause() instanceof CancellationException);
186	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
195	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
196	>
197		assertTrue(f.isDone());
188	–	assertFalse(f.isCancelled());
198		assertTrue(f.isCompletedExceptionally());
199	+	assertTrue(f.isCancelled());
200		assertTrue(f.toString().contains("[Completed exceptionally]"));
201		}
202
#	Line 204 | Line 214 | public class CompletableFutureTest exten
214		* isCancelled, join, get, and getNow
215		*/
216		public void testComplete() {
217	+	for (Integer v1 : new Integer[] { 1, null })
218	+	{
219		CompletableFuture<Integer> f = new CompletableFuture<>();
220		checkIncomplete(f);
221	<	f.complete(one);
222	<	checkCompletedNormally(f, one);
223	<	}
221	>	assertTrue(f.complete(v1));
222	>	assertFalse(f.complete(v1));
223	>	checkCompletedNormally(f, v1);
224	>	}}
225
226		/**
227		* completeExceptionally completes exceptionally, as indicated by
#	Line 216 | Line 229 | public class CompletableFutureTest exten
229		*/
230		public void testCompleteExceptionally() {
231		CompletableFuture<Integer> f = new CompletableFuture<>();
232	+	CFException ex = new CFException();
233		checkIncomplete(f);
234	<	f.completeExceptionally(new CFException());
235	<	checkCompletedWithWrappedCFException(f);
234	>	f.completeExceptionally(ex);
235	>	checkCompletedExceptionally(f, ex);
236		}
237
238		/**
#	Line 226 | Line 240 | public class CompletableFutureTest exten
240		* methods isDone, isCancelled, join, get, and getNow
241		*/
242		public void testCancel() {
243	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
244	+	{
245		CompletableFuture<Integer> f = new CompletableFuture<>();
246		checkIncomplete(f);
247	<	assertTrue(f.cancel(true));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(!mayInterruptIfRunning));
250		checkCancelled(f);
251	<	}
251	>	}}
252
253		/**
254		* obtrudeValue forces completion with given value
#	Line 238 | Line 256 | public class CompletableFutureTest exten
256		public void testObtrudeValue() {
257		CompletableFuture<Integer> f = new CompletableFuture<>();
258		checkIncomplete(f);
259	<	f.complete(one);
259	>	assertTrue(f.complete(one));
260		checkCompletedNormally(f, one);
261		f.obtrudeValue(three);
262		checkCompletedNormally(f, three);
#	Line 259 | Line 277 | public class CompletableFutureTest exten
277		* obtrudeException forces completion with given exception
278		*/
279		public void testObtrudeException() {
280	<	CompletableFuture<Integer> f = new CompletableFuture<>();
281	<	checkIncomplete(f);
282	<	f.complete(one);
283	<	checkCompletedNormally(f, one);
284	<	f.obtrudeException(new CFException());
267	<	checkCompletedWithWrappedCFException(f);
280	>	for (Integer v1 : new Integer[] { 1, null })
281	>	{
282	>	CFException ex;
283	>	CompletableFuture<Integer> f;
284	>
285		f = new CompletableFuture<>();
286	<	f.obtrudeException(new CFException());
287	<	checkCompletedWithWrappedCFException(f);
286	>	assertTrue(f.complete(v1));
287	>	for (int i = 0; i < 2; i++) {
288	>	f.obtrudeException(ex = new CFException());
289	>	checkCompletedExceptionally(f, ex);
290	>	}
291	>
292		f = new CompletableFuture<>();
293	+	for (int i = 0; i < 2; i++) {
294	+	f.obtrudeException(ex = new CFException());
295	+	checkCompletedExceptionally(f, ex);
296	+	}
297	+
298	+	f = new CompletableFuture<>();
299	+	f.completeExceptionally(ex = new CFException());
300	+	f.obtrudeValue(v1);
301	+	checkCompletedNormally(f, v1);
302	+	f.obtrudeException(ex = new CFException());
303	+	checkCompletedExceptionally(f, ex);
304		f.completeExceptionally(new CFException());
305	<	f.obtrudeValue(four);
306	<	checkCompletedNormally(f, four);
307	<	f.obtrudeException(new CFException());
308	<	checkCompletedWithWrappedCFException(f);
277	<	}
305	>	checkCompletedExceptionally(f, ex);
306	>	assertFalse(f.complete(v1));
307	>	checkCompletedExceptionally(f, ex);
308	>	}}
309
310		/**
311		* getNumberOfDependents returns number of dependent tasks
312		*/
313		public void testGetNumberOfDependents() {
314	+	for (ExecutionMode m : ExecutionMode.values())
315	+	for (Integer v1 : new Integer[] { 1, null })
316	+	{
317		CompletableFuture<Integer> f = new CompletableFuture<>();
318		assertEquals(0, f.getNumberOfDependents());
319	<	CompletableFuture g = f.thenRun(new Noop());
319	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
320		assertEquals(1, f.getNumberOfDependents());
321		assertEquals(0, g.getNumberOfDependents());
322	<	CompletableFuture h = f.thenRun(new Noop());
322	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
323		assertEquals(2, f.getNumberOfDependents());
324	<	f.complete(1);
324	>	assertEquals(0, h.getNumberOfDependents());
325	>	assertTrue(f.complete(v1));
326		checkCompletedNormally(g, null);
327	+	checkCompletedNormally(h, null);
328		assertEquals(0, f.getNumberOfDependents());
329		assertEquals(0, g.getNumberOfDependents());
330	<	}
330	>	assertEquals(0, h.getNumberOfDependents());
331	>	}}
332
333		/**
334		* toString indicates current completion state
#	Line 302 | Line 339 | public class CompletableFutureTest exten
339		f = new CompletableFuture<String>();
340		assertTrue(f.toString().contains("[Not completed]"));
341
342	<	f.complete("foo");
342	>	assertTrue(f.complete("foo"));
343		assertTrue(f.toString().contains("[Completed normally]"));
344
345		f = new CompletableFuture<String>();
346	<	f.completeExceptionally(new IndexOutOfBoundsException());
346	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
347		assertTrue(f.toString().contains("[Completed exceptionally]"));
348	+
349	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
350	+	f = new CompletableFuture<String>();
351	+	assertTrue(f.cancel(mayInterruptIfRunning));
352	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
353	+	}
354		}
355
356		/**
#	Line 318 | Line 361 | public class CompletableFutureTest exten
361		checkCompletedNormally(f, "test");
362		}
363
364	<	// Choose non-commutative actions for better coverage
364	>	abstract class CheckedAction {
365	>	int invocationCount = 0;
366	>	final ExecutionMode m;
367	>	CheckedAction(ExecutionMode m) { this.m = m; }
368	>	void invoked() {
369	>	m.checkExecutionMode();
370	>	assertEquals(0, invocationCount++);
371	>	}
372	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
373	>	void assertInvoked() { assertEquals(1, invocationCount); }
374	>	}
375
376	<	// A non-commutative function that handles and produces null values as well.
377	<	static Integer subtract(Integer x, Integer y) {
378	<	return (x == null && y == null) ? null :
379	<	((x == null) ? 42 : x.intValue())
380	<	- ((y == null) ? 99 : y.intValue());
376	>	abstract class CheckedIntegerAction extends CheckedAction {
377	>	Integer value;
378	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
379	>	void assertValue(Integer expected) {
380	>	assertInvoked();
381	>	assertEquals(expected, value);
382	>	}
383	>	}
384	>
385	>	class IntegerSupplier extends CheckedAction
386	>	implements Supplier<Integer>
387	>	{
388	>	final Integer value;
389	>	IntegerSupplier(ExecutionMode m, Integer value) {
390	>	super(m);
391	>	this.value = value;
392	>	}
393	>	public Integer get() {
394	>	invoked();
395	>	return value;
396	>	}
397		}
398
399		// A function that handles and produces null values as well.
#	Line 332 | Line 401 | public class CompletableFutureTest exten
401		return (x == null) ? null : x + 1;
402		}
403
404	<	static final Supplier<Integer> supplyOne =
405	<	() -> Integer.valueOf(1);
406	<	static final Function<Integer, Integer> inc =
407	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
339	<	static final BiFunction<Integer, Integer, Integer> subtract =
340	<	(Integer x, Integer y) -> subtract(x, y);
341	<	static final class IncAction implements Consumer<Integer> {
342	<	int invocationCount = 0;
343	<	Integer value;
404	>	class NoopConsumer extends CheckedIntegerAction
405	>	implements Consumer<Integer>
406	>	{
407	>	NoopConsumer(ExecutionMode m) { super(m); }
408		public void accept(Integer x) {
409	<	invocationCount++;
410	<	value = inc(x);
409	>	invoked();
410	>	value = x;
411		}
412		}
413	<	static final class IncFunction implements Function<Integer,Integer> {
414	<	int invocationCount = 0;
415	<	Integer value;
413	>
414	>	class IncFunction extends CheckedIntegerAction
415	>	implements Function<Integer,Integer>
416	>	{
417	>	IncFunction(ExecutionMode m) { super(m); }
418		public Integer apply(Integer x) {
419	<	invocationCount++;
419	>	invoked();
420		return value = inc(x);
421		}
422		}
423	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
424	<	int invocationCount = 0;
425	<	Integer value;
426	<	// Check this action was invoked exactly once when result is computed.
423	>
424	>	// Choose non-commutative actions for better coverage
425	>	// A non-commutative function that handles and produces null values as well.
426	>	static Integer subtract(Integer x, Integer y) {
427	>	return (x == null && y == null) ? null :
428	>	((x == null) ? 42 : x.intValue())
429	>	- ((y == null) ? 99 : y.intValue());
430	>	}
431	>
432	>	class SubtractAction extends CheckedIntegerAction
433	>	implements BiConsumer<Integer, Integer>
434	>	{
435	>	SubtractAction(ExecutionMode m) { super(m); }
436		public void accept(Integer x, Integer y) {
437	<	invocationCount++;
437	>	invoked();
438		value = subtract(x, y);
439		}
440		}
441	<	static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
442	<	int invocationCount = 0;
443	<	Integer value;
444	<	// Check this action was invoked exactly once when result is computed.
441	>
442	>	class SubtractFunction extends CheckedIntegerAction
443	>	implements BiFunction<Integer, Integer, Integer>
444	>	{
445	>	SubtractFunction(ExecutionMode m) { super(m); }
446		public Integer apply(Integer x, Integer y) {
447	<	invocationCount++;
447	>	invoked();
448		return value = subtract(x, y);
449		}
450		}
451	<	static final class Noop implements Runnable {
452	<	int invocationCount = 0;
451	>
452	>	class Noop extends CheckedAction implements Runnable {
453	>	Noop(ExecutionMode m) { super(m); }
454		public void run() {
455	<	invocationCount++;
455	>	invoked();
456		}
457		}
458
459	<	static final class FailingSupplier implements Supplier<Integer> {
460	<	int invocationCount = 0;
459	>	class FailingSupplier extends CheckedAction
460	>	implements Supplier<Integer>
461	>	{
462	>	FailingSupplier(ExecutionMode m) { super(m); }
463		public Integer get() {
464	<	invocationCount++;
464	>	invoked();
465		throw new CFException();
466		}
467		}
468	<	static final class FailingConsumer implements Consumer<Integer> {
469	<	int invocationCount = 0;
468	>
469	>	class FailingConsumer extends CheckedIntegerAction
470	>	implements Consumer<Integer>
471	>	{
472	>	FailingConsumer(ExecutionMode m) { super(m); }
473		public void accept(Integer x) {
474	<	invocationCount++;
474	>	invoked();
475	>	value = x;
476		throw new CFException();
477		}
478		}
479	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
480	<	int invocationCount = 0;
479	>
480	>	class FailingBiConsumer extends CheckedIntegerAction
481	>	implements BiConsumer<Integer, Integer>
482	>	{
483	>	FailingBiConsumer(ExecutionMode m) { super(m); }
484		public void accept(Integer x, Integer y) {
485	<	invocationCount++;
485	>	invoked();
486	>	value = subtract(x, y);
487		throw new CFException();
488		}
489		}
490	<	static final class FailingFunction implements Function<Integer, Integer> {
491	<	int invocationCount = 0;
490	>
491	>	class FailingFunction extends CheckedIntegerAction
492	>	implements Function<Integer, Integer>
493	>	{
494	>	FailingFunction(ExecutionMode m) { super(m); }
495		public Integer apply(Integer x) {
496	<	invocationCount++;
496	>	invoked();
497	>	value = x;
498		throw new CFException();
499		}
500		}
501	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
502	<	int invocationCount = 0;
501	>
502	>	class FailingBiFunction extends CheckedIntegerAction
503	>	implements BiFunction<Integer, Integer, Integer>
504	>	{
505	>	FailingBiFunction(ExecutionMode m) { super(m); }
506		public Integer apply(Integer x, Integer y) {
507	<	invocationCount++;
507	>	invoked();
508	>	value = subtract(x, y);
509		throw new CFException();
510		}
511		}
512	<	static final class FailingNoop implements Runnable {
513	<	int invocationCount = 0;
512	>
513	>	class FailingRunnable extends CheckedAction implements Runnable {
514	>	FailingRunnable(ExecutionMode m) { super(m); }
515		public void run() {
516	<	invocationCount++;
516	>	invoked();
517		throw new CFException();
518		}
519		}
520
521	<	static final class CompletableFutureInc
522	<	implements Function<Integer, CompletableFuture<Integer>> {
523	<	int invocationCount = 0;
521	>	class CompletableFutureInc extends CheckedIntegerAction
522	>	implements Function<Integer, CompletableFuture<Integer>>
523	>	{
524	>	CompletableFutureInc(ExecutionMode m) { super(m); }
525		public CompletableFuture<Integer> apply(Integer x) {
526	<	invocationCount++;
526	>	invoked();
527	>	value = x;
528		CompletableFuture<Integer> f = new CompletableFuture<>();
529	<	f.complete(inc(x));
529	>	assertTrue(f.complete(inc(x)));
530		return f;
531		}
532		}
533
534	<	static final class FailingCompletableFutureFunction
535	<	implements Function<Integer, CompletableFuture<Integer>> {
536	<	int invocationCount = 0;
534	>	class FailingCompletableFutureFunction extends CheckedIntegerAction
535	>	implements Function<Integer, CompletableFuture<Integer>>
536	>	{
537	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
538		public CompletableFuture<Integer> apply(Integer x) {
539	<	invocationCount++;
539	>	invoked();
540	>	value = x;
541		throw new CFException();
542		}
543		}
544
545		// Used for explicit executor tests
546		static final class ThreadExecutor implements Executor {
547	<	AtomicInteger count = new AtomicInteger(0);
547	>	final AtomicInteger count = new AtomicInteger(0);
548	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
549	>	static boolean startedCurrentThread() {
550	>	return Thread.currentThread().getThreadGroup() == tg;
551	>	}
552
553		public void execute(Runnable r) {
554		count.getAndIncrement();
555	<	new Thread(r).start();
555	>	new Thread(tg, r).start();
556		}
557		}
558
559	+	static final boolean defaultExecutorIsCommonPool
560	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
561	+
562		/**
563		* Permits the testing of parallel code for the 3 different
564	<	* execution modes without repeating all the testing code.
564	>	* execution modes without copy/pasting all the test methods.
565		*/
566		enum ExecutionMode {
567	<	DEFAULT {
567	>	SYNC {
568	>	public void checkExecutionMode() {
569	>	assertFalse(ThreadExecutor.startedCurrentThread());
570	>	assertNull(ForkJoinTask.getPool());
571	>	}
572	>	public CompletableFuture<Void> runAsync(Runnable a) {
573	>	throw new UnsupportedOperationException();
574	>	}
575	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
576	>	throw new UnsupportedOperationException();
577	>	}
578		public <T> CompletableFuture<Void> thenRun
579		(CompletableFuture<T> f, Runnable a) {
580		return f.thenRun(a);
#	Line 521 | Line 638 | public class CompletableFutureTest exten
638		}
639		},
640
641	<	DEFAULT_ASYNC {
641	>	ASYNC {
642	>	public void checkExecutionMode() {
643	>	assertEquals(defaultExecutorIsCommonPool,
644	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
645	>	}
646	>	public CompletableFuture<Void> runAsync(Runnable a) {
647	>	return CompletableFuture.runAsync(a);
648	>	}
649	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
650	>	return CompletableFuture.supplyAsync(a);
651	>	}
652		public <T> CompletableFuture<Void> thenRun
653		(CompletableFuture<T> f, Runnable a) {
654		return f.thenRunAsync(a);
#	Line 586 | Line 713 | public class CompletableFutureTest exten
713		},
714
715		EXECUTOR {
716	+	public void checkExecutionMode() {
717	+	assertTrue(ThreadExecutor.startedCurrentThread());
718	+	}
719	+	public CompletableFuture<Void> runAsync(Runnable a) {
720	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
721	+	}
722	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
723	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
724	+	}
725		public <T> CompletableFuture<Void> thenRun
726		(CompletableFuture<T> f, Runnable a) {
727		return f.thenRunAsync(a, new ThreadExecutor());
#	Line 649 | Line 785 | public class CompletableFutureTest exten
785		}
786		};
787
788	+	public abstract void checkExecutionMode();
789	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
790	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
791		public abstract <T> CompletableFuture<Void> thenRun
792		(CompletableFuture<T> f, Runnable a);
793		public abstract <T> CompletableFuture<Void> thenAccept
#	Line 698 | Line 837 | public class CompletableFutureTest exten
837		{
838		final AtomicInteger a = new AtomicInteger(0);
839		final CompletableFuture<Integer> f = new CompletableFuture<>();
840	<	if (!createIncomplete) f.complete(v1);
840	>	if (!createIncomplete) assertTrue(f.complete(v1));
841		final CompletableFuture<Integer> g = f.exceptionally
842		((Throwable t) -> {
704	–	// Should not be called
843		a.getAndIncrement();
844	<	throw new AssertionError();
844	>	threadFail("should not be called");
845	>	return null;            // unreached
846		});
847	<	if (createIncomplete) f.complete(v1);
847	>	if (createIncomplete) assertTrue(f.complete(v1));
848
849		checkCompletedNormally(g, v1);
850		checkCompletedNormally(f, v1);
851		assertEquals(0, a.get());
852		}}
853
715	–
854		/**
855		* exceptionally action completes with function value on source
856		* exception
#	Line 727 | Line 865 | public class CompletableFutureTest exten
865		if (!createIncomplete) f.completeExceptionally(ex);
866		final CompletableFuture<Integer> g = f.exceptionally
867		((Throwable t) -> {
868	+	ExecutionMode.SYNC.checkExecutionMode();
869		threadAssertSame(t, ex);
870		a.getAndIncrement();
871		return v1;
#	Line 737 | Line 876 | public class CompletableFutureTest exten
876		assertEquals(1, a.get());
877		}}
878
879	+	/**
880	+	* If an "exceptionally action" throws an exception, it completes
881	+	* exceptionally with that exception
882	+	*/
883		public void testExceptionally_exceptionalCompletionActionFailed() {
884		for (boolean createIncomplete : new boolean[] { true, false })
742	–	for (Integer v1 : new Integer[] { 1, null })
885		{
886		final AtomicInteger a = new AtomicInteger(0);
887		final CFException ex1 = new CFException();
#	Line 748 | Line 890 | public class CompletableFutureTest exten
890		if (!createIncomplete) f.completeExceptionally(ex1);
891		final CompletableFuture<Integer> g = f.exceptionally
892		((Throwable t) -> {
893	+	ExecutionMode.SYNC.checkExecutionMode();
894		threadAssertSame(t, ex1);
895		a.getAndIncrement();
896		throw ex2;
897		});
898		if (createIncomplete) f.completeExceptionally(ex1);
899
900	<	checkCompletedWithWrappedCFException(g, ex2);
900	>	checkCompletedWithWrappedException(g, ex2);
901	>	checkCompletedExceptionally(f, ex1);
902	>	assertEquals(1, a.get());
903	>	}}
904	>
905	>	/**
906	>	* whenComplete action executes on normal completion, propagating
907	>	* source result.
908	>	*/
909	>	public void testWhenComplete_normalCompletion() {
910	>	for (ExecutionMode m : ExecutionMode.values())
911	>	for (boolean createIncomplete : new boolean[] { true, false })
912	>	for (Integer v1 : new Integer[] { 1, null })
913	>	{
914	>	final AtomicInteger a = new AtomicInteger(0);
915	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
916	>	if (!createIncomplete) assertTrue(f.complete(v1));
917	>	final CompletableFuture<Integer> g = m.whenComplete
918	>	(f,
919	>	(Integer result, Throwable t) -> {
920	>	m.checkExecutionMode();
921	>	threadAssertSame(result, v1);
922	>	threadAssertNull(t);
923	>	a.getAndIncrement();
924	>	});
925	>	if (createIncomplete) assertTrue(f.complete(v1));
926	>
927	>	checkCompletedNormally(g, v1);
928	>	checkCompletedNormally(f, v1);
929	>	assertEquals(1, a.get());
930	>	}}
931	>
932	>	/**
933	>	* whenComplete action executes on exceptional completion, propagating
934	>	* source result.
935	>	*/
936	>	public void testWhenComplete_exceptionalCompletion() {
937	>	for (ExecutionMode m : ExecutionMode.values())
938	>	for (boolean createIncomplete : new boolean[] { true, false })
939	>	{
940	>	final AtomicInteger a = new AtomicInteger(0);
941	>	final CFException ex = new CFException();
942	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
943	>	if (!createIncomplete) f.completeExceptionally(ex);
944	>	final CompletableFuture<Integer> g = m.whenComplete
945	>	(f,
946	>	(Integer result, Throwable t) -> {
947	>	m.checkExecutionMode();
948	>	threadAssertNull(result);
949	>	threadAssertSame(t, ex);
950	>	a.getAndIncrement();
951	>	});
952	>	if (createIncomplete) f.completeExceptionally(ex);
953	>
954	>	checkCompletedWithWrappedException(g, ex);
955	>	checkCompletedExceptionally(f, ex);
956	>	assertEquals(1, a.get());
957	>	}}
958	>
959	>	/**
960	>	* whenComplete action executes on cancelled source, propagating
961	>	* CancellationException.
962	>	*/
963	>	public void testWhenComplete_sourceCancelled() {
964	>	for (ExecutionMode m : ExecutionMode.values())
965	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966	>	for (boolean createIncomplete : new boolean[] { true, false })
967	>	{
968	>	final AtomicInteger a = new AtomicInteger(0);
969	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
970	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971	>	final CompletableFuture<Integer> g = m.whenComplete
972	>	(f,
973	>	(Integer result, Throwable t) -> {
974	>	m.checkExecutionMode();
975	>	threadAssertNull(result);
976	>	threadAssertTrue(t instanceof CancellationException);
977	>	a.getAndIncrement();
978	>	});
979	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
980	>
981	>	checkCompletedWithWrappedCancellationException(g);
982	>	checkCancelled(f);
983	>	assertEquals(1, a.get());
984	>	}}
985	>
986	>	/**
987	>	* If a whenComplete action throws an exception when triggered by
988	>	* a normal completion, it completes exceptionally
989	>	*/
990	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
991	>	for (boolean createIncomplete : new boolean[] { true, false })
992	>	for (ExecutionMode m : ExecutionMode.values())
993	>	for (Integer v1 : new Integer[] { 1, null })
994	>	{
995	>	final AtomicInteger a = new AtomicInteger(0);
996	>	final CFException ex = new CFException();
997	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
998	>	if (!createIncomplete) assertTrue(f.complete(v1));
999	>	final CompletableFuture<Integer> g = m.whenComplete
1000	>	(f,
1001	>	(Integer result, Throwable t) -> {
1002	>	m.checkExecutionMode();
1003	>	threadAssertSame(result, v1);
1004	>	threadAssertNull(t);
1005	>	a.getAndIncrement();
1006	>	throw ex;
1007	>	});
1008	>	if (createIncomplete) assertTrue(f.complete(v1));
1009	>
1010	>	checkCompletedWithWrappedException(g, ex);
1011	>	checkCompletedNormally(f, v1);
1012	>	assertEquals(1, a.get());
1013	>	}}
1014	>
1015	>	/**
1016	>	* If a whenComplete action throws an exception when triggered by
1017	>	* a source completion that also throws an exception, the source
1018	>	* exception takes precedence (unlike handle)
1019	>	*/
1020	>	public void testWhenComplete_sourceFailedActionFailed() {
1021	>	for (boolean createIncomplete : new boolean[] { true, false })
1022	>	for (ExecutionMode m : ExecutionMode.values())
1023	>	{
1024	>	final AtomicInteger a = new AtomicInteger(0);
1025	>	final CFException ex1 = new CFException();
1026	>	final CFException ex2 = new CFException();
1027	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1028	>
1029	>	if (!createIncomplete) f.completeExceptionally(ex1);
1030	>	final CompletableFuture<Integer> g = m.whenComplete
1031	>	(f,
1032	>	(Integer result, Throwable t) -> {
1033	>	m.checkExecutionMode();
1034	>	threadAssertSame(t, ex1);
1035	>	threadAssertNull(result);
1036	>	a.getAndIncrement();
1037	>	throw ex2;
1038	>	});
1039	>	if (createIncomplete) f.completeExceptionally(ex1);
1040	>
1041	>	checkCompletedWithWrappedException(g, ex1);
1042	>	checkCompletedExceptionally(f, ex1);
1043	>	assertEquals(1, ex1.getSuppressed().length);
1044	>	assertSame(ex2, ex1.getSuppressed()[0]);
1045		assertEquals(1, a.get());
1046		}}
1047
#	Line 769 | Line 1056 | public class CompletableFutureTest exten
1056		{
1057		final CompletableFuture<Integer> f = new CompletableFuture<>();
1058		final AtomicInteger a = new AtomicInteger(0);
1059	<	if (!createIncomplete) f.complete(v1);
1059	>	if (!createIncomplete) assertTrue(f.complete(v1));
1060		final CompletableFuture<Integer> g = m.handle
1061		(f,
1062	<	(Integer x, Throwable t) -> {
1063	<	threadAssertSame(x, v1);
1062	>	(Integer result, Throwable t) -> {
1063	>	m.checkExecutionMode();
1064	>	threadAssertSame(result, v1);
1065		threadAssertNull(t);
1066		a.getAndIncrement();
1067		return inc(v1);
1068		});
1069	<	if (createIncomplete) f.complete(v1);
1069	>	if (createIncomplete) assertTrue(f.complete(v1));
1070
1071		checkCompletedNormally(g, inc(v1));
1072		checkCompletedNormally(f, v1);
#	Line 800 | Line 1088 | public class CompletableFutureTest exten
1088		if (!createIncomplete) f.completeExceptionally(ex);
1089		final CompletableFuture<Integer> g = m.handle
1090		(f,
1091	<	(Integer x, Throwable t) -> {
1092	<	threadAssertNull(x);
1091	>	(Integer result, Throwable t) -> {
1092	>	m.checkExecutionMode();
1093	>	threadAssertNull(result);
1094		threadAssertSame(t, ex);
1095		a.getAndIncrement();
1096		return v1;
#	Line 809 | Line 1098 | public class CompletableFutureTest exten
1098		if (createIncomplete) f.completeExceptionally(ex);
1099
1100		checkCompletedNormally(g, v1);
1101	<	checkCompletedWithWrappedCFException(f, ex);
1101	>	checkCompletedExceptionally(f, ex);
1102		assertEquals(1, a.get());
1103		}}
1104
#	Line 828 | Line 1117 | public class CompletableFutureTest exten
1117		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1118		final CompletableFuture<Integer> g = m.handle
1119		(f,
1120	<	(Integer x, Throwable t) -> {
1121	<	threadAssertNull(x);
1120	>	(Integer result, Throwable t) -> {
1121	>	m.checkExecutionMode();
1122	>	threadAssertNull(result);
1123		threadAssertTrue(t instanceof CancellationException);
1124		a.getAndIncrement();
1125		return v1;
#	Line 842 | Line 1132 | public class CompletableFutureTest exten
1132		}}
1133
1134		/**
1135	<	* handle result completes exceptionally if action does
1135	>	* If a "handle action" throws an exception when triggered by
1136	>	* a normal completion, it completes exceptionally
1137		*/
1138	<	public void testHandle_sourceFailedActionFailed() {
1138	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1139		for (ExecutionMode m : ExecutionMode.values())
1140		for (boolean createIncomplete : new boolean[] { true, false })
1141	+	for (Integer v1 : new Integer[] { 1, null })
1142		{
1143		final CompletableFuture<Integer> f = new CompletableFuture<>();
1144		final AtomicInteger a = new AtomicInteger(0);
1145	<	final CFException ex1 = new CFException();
1146	<	final CFException ex2 = new CFException();
855	<	if (!createIncomplete) f.completeExceptionally(ex1);
1145	>	final CFException ex = new CFException();
1146	>	if (!createIncomplete) assertTrue(f.complete(v1));
1147		final CompletableFuture<Integer> g = m.handle
1148		(f,
1149	<	(Integer x, Throwable t) -> {
1150	<	threadAssertNull(x);
1151	<	threadAssertSame(ex1, t);
1149	>	(Integer result, Throwable t) -> {
1150	>	m.checkExecutionMode();
1151	>	threadAssertSame(result, v1);
1152	>	threadAssertNull(t);
1153		a.getAndIncrement();
1154	<	throw ex2;
1154	>	throw ex;
1155		});
1156	<	if (createIncomplete) f.completeExceptionally(ex1);
1156	>	if (createIncomplete) assertTrue(f.complete(v1));
1157
1158	<	checkCompletedWithWrappedCFException(g, ex2);
1159	<	checkCompletedWithWrappedCFException(f, ex1);
1158	>	checkCompletedWithWrappedException(g, ex);
1159	>	checkCompletedNormally(f, v1);
1160		assertEquals(1, a.get());
1161		}}
1162
1163	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1164	<	for (ExecutionMode m : ExecutionMode.values())
1163	>	/**
1164	>	* If a "handle action" throws an exception when triggered by
1165	>	* a source completion that also throws an exception, the action
1166	>	* exception takes precedence (unlike whenComplete)
1167	>	*/
1168	>	public void testHandle_sourceFailedActionFailed() {
1169		for (boolean createIncomplete : new boolean[] { true, false })
1170	<	for (Integer v1 : new Integer[] { 1, null })
1170	>	for (ExecutionMode m : ExecutionMode.values())
1171		{
876	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1172		final AtomicInteger a = new AtomicInteger(0);
1173	<	final CFException ex = new CFException();
1174	<	if (!createIncomplete) f.complete(v1);
1173	>	final CFException ex1 = new CFException();
1174	>	final CFException ex2 = new CFException();
1175	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1176	>
1177	>	if (!createIncomplete) f.completeExceptionally(ex1);
1178		final CompletableFuture<Integer> g = m.handle
1179		(f,
1180	<	(Integer x, Throwable t) -> {
1181	<	threadAssertSame(x, v1);
1182	<	threadAssertNull(t);
1180	>	(Integer result, Throwable t) -> {
1181	>	m.checkExecutionMode();
1182	>	threadAssertNull(result);
1183	>	threadAssertSame(ex1, t);
1184		a.getAndIncrement();
1185	<	throw ex;
1185	>	throw ex2;
1186		});
1187	<	if (createIncomplete) f.complete(v1);
1187	>	if (createIncomplete) f.completeExceptionally(ex1);
1188
1189	<	checkCompletedWithWrappedCFException(g, ex);
1190	<	checkCompletedNormally(f, v1);
1189	>	checkCompletedWithWrappedException(g, ex2);
1190	>	checkCompletedExceptionally(f, ex1);
1191		assertEquals(1, a.get());
1192		}}
1193
1194		/**
1195		* runAsync completes after running Runnable
1196		*/
1197	<	public void testRunAsync() {
1198	<	Noop r = new Noop();
1199	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1200	<	assertNull(f.join());
1201	<	assertEquals(1, r.invocationCount);
1202	<	checkCompletedNormally(f, null);
1203	<	}
1204	<
1205	<	/**
907	<	* runAsync with executor completes after running Runnable
908	<	*/
909	<	public void testRunAsync2() {
910	<	Noop r = new Noop();
911	<	ThreadExecutor exec = new ThreadExecutor();
912	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1197	>	public void testRunAsync_normalCompletion() {
1198	>	ExecutionMode[] executionModes = {
1199	>	ExecutionMode.ASYNC,
1200	>	ExecutionMode.EXECUTOR,
1201	>	};
1202	>	for (ExecutionMode m : executionModes)
1203	>	{
1204	>	final Noop r = new Noop(m);
1205	>	final CompletableFuture<Void> f = m.runAsync(r);
1206		assertNull(f.join());
914	–	assertEquals(1, r.invocationCount);
1207		checkCompletedNormally(f, null);
1208	<	assertEquals(1, exec.count.get());
1209	<	}
1208	>	r.assertInvoked();
1209	>	}}
1210
1211		/**
1212		* failing runAsync completes exceptionally after running Runnable
1213		*/
1214	<	public void testRunAsync3() {
1215	<	FailingNoop r = new FailingNoop();
1216	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1214	>	public void testRunAsync_exceptionalCompletion() {
1215	>	ExecutionMode[] executionModes = {
1216	>	ExecutionMode.ASYNC,
1217	>	ExecutionMode.EXECUTOR,
1218	>	};
1219	>	for (ExecutionMode m : executionModes)
1220	>	{
1221	>	final FailingRunnable r = new FailingRunnable(m);
1222	>	final CompletableFuture<Void> f = m.runAsync(r);
1223		checkCompletedWithWrappedCFException(f);
1224	<	assertEquals(1, r.invocationCount);
1225	<	}
1224	>	r.assertInvoked();
1225	>	}}
1226
1227		/**
1228		* supplyAsync completes with result of supplier
1229		*/
1230	<	public void testSupplyAsync() {
1231	<	CompletableFuture<Integer> f;
1232	<	f = CompletableFuture.supplyAsync(supplyOne);
1233	<	assertEquals(f.join(), one);
1234	<	checkCompletedNormally(f, one);
1235	<	}
1236	<
1237	<	/**
1238	<	* supplyAsync with executor completes with result of supplier
1239	<	*/
1240	<	public void testSupplyAsync2() {
1241	<	CompletableFuture<Integer> f;
1242	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1243	<	assertEquals(f.join(), one);
946	<	checkCompletedNormally(f, one);
947	<	}
1230	>	public void testSupplyAsync_normalCompletion() {
1231	>	ExecutionMode[] executionModes = {
1232	>	ExecutionMode.ASYNC,
1233	>	ExecutionMode.EXECUTOR,
1234	>	};
1235	>	for (ExecutionMode m : executionModes)
1236	>	for (Integer v1 : new Integer[] { 1, null })
1237	>	{
1238	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1239	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1240	>	assertSame(v1, f.join());
1241	>	checkCompletedNormally(f, v1);
1242	>	r.assertInvoked();
1243	>	}}
1244
1245		/**
1246		* Failing supplyAsync completes exceptionally
1247		*/
1248	<	public void testSupplyAsync3() {
1249	<	FailingSupplier r = new FailingSupplier();
1250	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1248	>	public void testSupplyAsync_exceptionalCompletion() {
1249	>	ExecutionMode[] executionModes = {
1250	>	ExecutionMode.ASYNC,
1251	>	ExecutionMode.EXECUTOR,
1252	>	};
1253	>	for (ExecutionMode m : executionModes)
1254	>	{
1255	>	FailingSupplier r = new FailingSupplier(m);
1256	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1257		checkCompletedWithWrappedCFException(f);
1258	<	assertEquals(1, r.invocationCount);
1259	<	}
1258	>	r.assertInvoked();
1259	>	}}
1260
1261		// seq completion methods
1262
1263		/**
1264		* thenRun result completes normally after normal completion of source
1265		*/
1266	<	public void testThenRun() {
1267	<	CompletableFuture<Integer> f;
1268	<	CompletableFuture<Void> g;
1269	<	Noop r;
1270	<
1271	<	f = new CompletableFuture<>();
1272	<	g = f.thenRun(r = new Noop());
971	<	f.complete(null);
972	<	checkCompletedNormally(g, null);
973	<	assertEquals(1, r.invocationCount);
1266	>	public void testThenRun_normalCompletion() {
1267	>	for (ExecutionMode m : ExecutionMode.values())
1268	>	for (Integer v1 : new Integer[] { 1, null })
1269	>	{
1270	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1271	>	final Noop[] rs = new Noop[6];
1272	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1273
1274	<	f = new CompletableFuture<>();
1275	<	f.complete(null);
1276	<	g = f.thenRun(r = new Noop());
1277	<	checkCompletedNormally(g, null);
1278	<	assertEquals(1, r.invocationCount);
1279	<	}
1274	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1275	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1276	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1277	>	checkIncomplete(h0);
1278	>	checkIncomplete(h1);
1279	>	checkIncomplete(h2);
1280	>	assertTrue(f.complete(v1));
1281	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1282	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1283	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1284	>
1285	>	checkCompletedNormally(h0, null);
1286	>	checkCompletedNormally(h1, null);
1287	>	checkCompletedNormally(h2, null);
1288	>	checkCompletedNormally(h3, null);
1289	>	checkCompletedNormally(h4, null);
1290	>	checkCompletedNormally(h5, null);
1291	>	checkCompletedNormally(f, v1);
1292	>	for (Noop r : rs) r.assertInvoked();
1293	>	}}
1294
1295		/**
1296		* thenRun result completes exceptionally after exceptional
1297		* completion of source
1298		*/
1299	<	public void testThenRun2() {
1300	<	CompletableFuture<Integer> f;
1301	<	CompletableFuture<Void> g;
1302	<	Noop r;
1303	<
1304	<	f = new CompletableFuture<>();
1305	<	g = f.thenRun(r = new Noop());
993	<	f.completeExceptionally(new CFException());
994	<	checkCompletedWithWrappedCFException(g);
995	<	assertEquals(0, r.invocationCount);
996	<
997	<	f = new CompletableFuture<>();
998	<	f.completeExceptionally(new CFException());
999	<	g = f.thenRun(r = new Noop());
1000	<	checkCompletedWithWrappedCFException(g);
1001	<	assertEquals(0, r.invocationCount);
1002	<	}
1003	<
1004	<	/**
1005	<	* thenRun result completes exceptionally if action does
1006	<	*/
1007	<	public void testThenRun3() {
1008	<	CompletableFuture<Integer> f;
1009	<	CompletableFuture<Void> g;
1010	<	FailingNoop r;
1011	<
1012	<	f = new CompletableFuture<>();
1013	<	g = f.thenRun(r = new FailingNoop());
1014	<	f.complete(null);
1015	<	checkCompletedWithWrappedCFException(g);
1299	>	public void testThenRun_exceptionalCompletion() {
1300	>	for (ExecutionMode m : ExecutionMode.values())
1301	>	{
1302	>	final CFException ex = new CFException();
1303	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1304	>	final Noop[] rs = new Noop[6];
1305	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1306
1307	<	f = new CompletableFuture<>();
1308	<	f.complete(null);
1309	<	g = f.thenRun(r = new FailingNoop());
1310	<	checkCompletedWithWrappedCFException(g);
1311	<	}
1307	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1308	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1309	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1310	>	checkIncomplete(h0);
1311	>	checkIncomplete(h1);
1312	>	checkIncomplete(h2);
1313	>	assertTrue(f.completeExceptionally(ex));
1314	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1315	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1316	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1317	>
1318	>	checkCompletedWithWrappedException(h0, ex);
1319	>	checkCompletedWithWrappedException(h1, ex);
1320	>	checkCompletedWithWrappedException(h2, ex);
1321	>	checkCompletedWithWrappedException(h3, ex);
1322	>	checkCompletedWithWrappedException(h4, ex);
1323	>	checkCompletedWithWrappedException(h5, ex);
1324	>	checkCompletedExceptionally(f, ex);
1325	>	for (Noop r : rs) r.assertNotInvoked();
1326	>	}}
1327
1328		/**
1329		* thenRun result completes exceptionally if source cancelled
1330		*/
1331	<	public void testThenRun4() {
1332	<	CompletableFuture<Integer> f;
1333	<	CompletableFuture<Void> g;
1334	<	Noop r;
1335	<
1336	<	f = new CompletableFuture<>();
1337	<	g = f.thenRun(r = new Noop());
1033	<	assertTrue(f.cancel(true));
1034	<	checkCompletedWithWrappedCancellationException(g);
1035	<
1036	<	f = new CompletableFuture<>();
1037	<	assertTrue(f.cancel(true));
1038	<	g = f.thenRun(r = new Noop());
1039	<	checkCompletedWithWrappedCancellationException(g);
1040	<	}
1041	<
1042	<	/**
1043	<	* thenApply result completes normally after normal completion of source
1044	<	*/
1045	<	public void testThenApply() {
1046	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1047	<	CompletableFuture<Integer> g = f.thenApply(inc);
1048	<	f.complete(one);
1049	<	checkCompletedNormally(g, two);
1050	<	}
1051	<
1052	<	/**
1053	<	* thenApply result completes exceptionally after exceptional
1054	<	* completion of source
1055	<	*/
1056	<	public void testThenApply2() {
1057	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1058	<	CompletableFuture<Integer> g = f.thenApply(inc);
1059	<	f.completeExceptionally(new CFException());
1060	<	checkCompletedWithWrappedCFException(g);
1061	<	}
1062	<
1063	<	/**
1064	<	* thenApply result completes exceptionally if action does
1065	<	*/
1066	<	public void testThenApply3() {
1067	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1068	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1069	<	f.complete(one);
1070	<	checkCompletedWithWrappedCFException(g);
1071	<	}
1072	<
1073	<	/**
1074	<	* thenApply result completes exceptionally if source cancelled
1075	<	*/
1076	<	public void testThenApply4() {
1077	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1078	<	CompletableFuture<Integer> g = f.thenApply(inc);
1079	<	assertTrue(f.cancel(true));
1080	<	checkCompletedWithWrappedCancellationException(g);
1081	<	}
1082	<
1083	<	/**
1084	<	* thenAccept result completes normally after normal completion of source
1085	<	*/
1086	<	public void testThenAccept() {
1087	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1088	<	IncAction r = new IncAction();
1089	<	CompletableFuture<Void> g = f.thenAccept(r);
1090	<	f.complete(one);
1091	<	checkCompletedNormally(g, null);
1092	<	assertEquals(r.value, (Integer) 2);
1093	<	}
1094	<
1095	<	/**
1096	<	* thenAccept result completes exceptionally after exceptional
1097	<	* completion of source
1098	<	*/
1099	<	public void testThenAccept2() {
1100	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1101	<	IncAction r = new IncAction();
1102	<	CompletableFuture<Void> g = f.thenAccept(r);
1103	<	f.completeExceptionally(new CFException());
1104	<	checkCompletedWithWrappedCFException(g);
1105	<	}
1106	<
1107	<	/**
1108	<	* thenAccept result completes exceptionally if action does
1109	<	*/
1110	<	public void testThenAccept3() {
1111	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1112	<	FailingConsumer r = new FailingConsumer();
1113	<	CompletableFuture<Void> g = f.thenAccept(r);
1114	<	f.complete(one);
1115	<	checkCompletedWithWrappedCFException(g);
1116	<	assertEquals(1, r.invocationCount);
1117	<	}
1331	>	public void testThenRun_sourceCancelled() {
1332	>	for (ExecutionMode m : ExecutionMode.values())
1333	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1334	>	{
1335	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1336	>	final Noop[] rs = new Noop[6];
1337	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1338
1339	<	/**
1340	<	* thenAccept result completes exceptionally if source cancelled
1341	<	*/
1342	<	public void testThenAccept4() {
1343	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1344	<	IncAction r = new IncAction();
1345	<	CompletableFuture<Void> g = f.thenAccept(r);
1346	<	assertTrue(f.cancel(true));
1347	<	checkCompletedWithWrappedCancellationException(g);
1348	<	}
1339	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1340	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1341	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1342	>	checkIncomplete(h0);
1343	>	checkIncomplete(h1);
1344	>	checkIncomplete(h2);
1345	>	assertTrue(f.cancel(mayInterruptIfRunning));
1346	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1347	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1348	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1349	>
1350	>	checkCompletedWithWrappedCancellationException(h0);
1351	>	checkCompletedWithWrappedCancellationException(h1);
1352	>	checkCompletedWithWrappedCancellationException(h2);
1353	>	checkCompletedWithWrappedCancellationException(h3);
1354	>	checkCompletedWithWrappedCancellationException(h4);
1355	>	checkCompletedWithWrappedCancellationException(h5);
1356	>	checkCancelled(f);
1357	>	for (Noop r : rs) r.assertNotInvoked();
1358	>	}}
1359
1360		/**
1361	<	* thenCombine result completes normally after normal completion
1132	<	* of sources
1361	>	* thenRun result completes exceptionally if action does
1362		*/
1363	<	public void testThenCombine_normalCompletion1() {
1135	<	for (boolean createIncomplete : new boolean[] { true, false })
1136	<	for (boolean fFirst : new boolean[] { true, false })
1363	>	public void testThenRun_actionFailed() {
1364		for (ExecutionMode m : ExecutionMode.values())
1365		for (Integer v1 : new Integer[] { 1, null })
1366	<	for (Integer v2 : new Integer[] { 2, null }) {
1140	<
1366	>	{
1367		final CompletableFuture<Integer> f = new CompletableFuture<>();
1368	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1369	<	final SubtractFunction r = new SubtractFunction();
1144	<	CompletableFuture<Integer> h = null;
1145	<	if (createIncomplete) h = m.thenCombine(f, g, r);
1146	<
1147	<	if (fFirst)
1148	<	f.complete(v1);
1149	<	else
1150	<	g.complete(v2);
1151	<	if (createIncomplete) checkIncomplete(h);
1152	<	assertEquals(0, r.invocationCount);
1153	<	if (!fFirst)
1154	<	f.complete(v1);
1155	<	else
1156	<	g.complete(v2);
1157	<	if (!createIncomplete) h = m.thenCombine(f, g, r);
1368	>	final FailingRunnable[] rs = new FailingRunnable[6];
1369	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1370
1371	<	checkCompletedNormally(h, subtract(v1, v2));
1371	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1372	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1373	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1374	>	assertTrue(f.complete(v1));
1375	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1376	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1377	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1378	>
1379	>	checkCompletedWithWrappedCFException(h0);
1380	>	checkCompletedWithWrappedCFException(h1);
1381	>	checkCompletedWithWrappedCFException(h2);
1382	>	checkCompletedWithWrappedCFException(h3);
1383	>	checkCompletedWithWrappedCFException(h4);
1384	>	checkCompletedWithWrappedCFException(h5);
1385		checkCompletedNormally(f, v1);
1386	<	checkCompletedNormally(g, v2);
1162	<	assertEquals(1, r.invocationCount);
1163	<	}
1164	<	}
1386	>	}}
1387
1388		/**
1389	<	* thenCombine result completes exceptionally after exceptional
1168	<	* completion of either source
1389	>	* thenApply result completes normally after normal completion of source
1390		*/
1391	<	public void testThenCombine_exceptionalCompletion1() {
1391	>	public void testThenApply_normalCompletion() {
1392		for (ExecutionMode m : ExecutionMode.values())
1393	<	for (Integer v1 : new Integer[] { 1, null }) {
1394	<
1174	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1175	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1176	<	final SubtractFunction r = new SubtractFunction();
1177	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1178	<	final CFException ex = new CFException();
1179	<
1180	<	f.completeExceptionally(ex);
1181	<	checkIncomplete(h);
1182	<	g.complete(v1);
1183	<
1184	<	checkCompletedWithWrappedCFException(h, ex);
1185	<	checkCompletedWithWrappedCFException(f, ex);
1186	<	assertEquals(0, r.invocationCount);
1187	<	checkCompletedNormally(g, v1);
1188	<	}
1189	<	}
1190	<
1191	<	public void testThenCombine_exceptionalCompletion2() {
1192	<	for (ExecutionMode m : ExecutionMode.values())
1193	<	for (Integer v1 : new Integer[] { 1, null }) {
1194	<
1393	>	for (Integer v1 : new Integer[] { 1, null })
1394	>	{
1395		final CompletableFuture<Integer> f = new CompletableFuture<>();
1396	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1397	<	final SubtractFunction r = new SubtractFunction();
1198	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1199	<	final CFException ex = new CFException();
1200	<
1201	<	g.completeExceptionally(ex);
1202	<	checkIncomplete(h);
1203	<	f.complete(v1);
1396	>	final IncFunction[] rs = new IncFunction[4];
1397	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1398
1399	<	checkCompletedWithWrappedCFException(h, ex);
1400	<	checkCompletedWithWrappedCFException(g, ex);
1401	<	assertEquals(0, r.invocationCount);
1399	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1400	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1401	>	checkIncomplete(h0);
1402	>	checkIncomplete(h1);
1403	>	assertTrue(f.complete(v1));
1404	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1405	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1406	>
1407	>	checkCompletedNormally(h0, inc(v1));
1408	>	checkCompletedNormally(h1, inc(v1));
1409	>	checkCompletedNormally(h2, inc(v1));
1410	>	checkCompletedNormally(h3, inc(v1));
1411		checkCompletedNormally(f, v1);
1412	<	}
1413	<	}
1412	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1413	>	}}
1414
1415	<	public void testThenCombine_exceptionalCompletion3() {
1415	>	/**
1416	>	* thenApply result completes exceptionally after exceptional
1417	>	* completion of source
1418	>	*/
1419	>	public void testThenApply_exceptionalCompletion() {
1420		for (ExecutionMode m : ExecutionMode.values())
1421	<	for (Integer v1 : new Integer[] { 1, null }) {
1215	<
1216	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1217	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1218	<	final SubtractFunction r = new SubtractFunction();
1421	>	{
1422		final CFException ex = new CFException();
1220	–
1221	–	g.completeExceptionally(ex);
1222	–	f.complete(v1);
1223	–	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1224	–
1225	–	checkCompletedWithWrappedCFException(h, ex);
1226	–	checkCompletedWithWrappedCFException(g, ex);
1227	–	assertEquals(0, r.invocationCount);
1228	–	checkCompletedNormally(f, v1);
1229	–	}
1230	–	}
1231	–
1232	–	public void testThenCombine_exceptionalCompletion4() {
1233	–	for (ExecutionMode m : ExecutionMode.values())
1234	–	for (Integer v1 : new Integer[] { 1, null }) {
1235	–
1423		final CompletableFuture<Integer> f = new CompletableFuture<>();
1424	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1425	<	final SubtractFunction r = new SubtractFunction();
1239	<	final CFException ex = new CFException();
1424	>	final IncFunction[] rs = new IncFunction[4];
1425	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1426
1427	<	f.completeExceptionally(ex);
1428	<	g.complete(v1);
1429	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1430	<
1431	<	checkCompletedWithWrappedCFException(h, ex);
1432	<	checkCompletedWithWrappedCFException(f, ex);
1433	<	assertEquals(0, r.invocationCount);
1434	<	checkCompletedNormally(g, v1);
1435	<	}
1436	<	}
1427	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1428	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1429	>	assertTrue(f.completeExceptionally(ex));
1430	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1431	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1432	>
1433	>	checkCompletedWithWrappedException(h0, ex);
1434	>	checkCompletedWithWrappedException(h1, ex);
1435	>	checkCompletedWithWrappedException(h2, ex);
1436	>	checkCompletedWithWrappedException(h3, ex);
1437	>	checkCompletedExceptionally(f, ex);
1438	>	for (IncFunction r : rs) r.assertNotInvoked();
1439	>	}}
1440
1441		/**
1442	<	* thenCombine result completes exceptionally if action does
1442	>	* thenApply result completes exceptionally if source cancelled
1443		*/
1444	<	public void testThenCombine_actionFailed1() {
1444	>	public void testThenApply_sourceCancelled() {
1445		for (ExecutionMode m : ExecutionMode.values())
1446	<	for (Integer v1 : new Integer[] { 1, null })
1447	<	for (Integer v2 : new Integer[] { 2, null }) {
1259	<
1446	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1447	>	{
1448		final CompletableFuture<Integer> f = new CompletableFuture<>();
1449	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1450	<	final FailingBiFunction r = new FailingBiFunction();
1263	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1449	>	final IncFunction[] rs = new IncFunction[4];
1450	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1451
1452	<	f.complete(v1);
1453	<	checkIncomplete(h);
1454	<	g.complete(v2);
1452	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1453	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1454	>	assertTrue(f.cancel(mayInterruptIfRunning));
1455	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1456	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1457
1458	<	checkCompletedWithWrappedCFException(h);
1459	<	checkCompletedNormally(f, v1);
1460	<	checkCompletedNormally(g, v2);
1461	<	}
1462	<	}
1458	>	checkCompletedWithWrappedCancellationException(h0);
1459	>	checkCompletedWithWrappedCancellationException(h1);
1460	>	checkCompletedWithWrappedCancellationException(h2);
1461	>	checkCompletedWithWrappedCancellationException(h3);
1462	>	checkCancelled(f);
1463	>	for (IncFunction r : rs) r.assertNotInvoked();
1464	>	}}
1465
1466	<	public void testThenCombine_actionFailed2() {
1466	>	/**
1467	>	* thenApply result completes exceptionally if action does
1468	>	*/
1469	>	public void testThenApply_actionFailed() {
1470		for (ExecutionMode m : ExecutionMode.values())
1471		for (Integer v1 : new Integer[] { 1, null })
1472	<	for (Integer v2 : new Integer[] { 2, null }) {
1279	<
1472	>	{
1473		final CompletableFuture<Integer> f = new CompletableFuture<>();
1474	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1475	<	final FailingBiFunction r = new FailingBiFunction();
1283	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1474	>	final FailingFunction[] rs = new FailingFunction[4];
1475	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1476
1477	<	g.complete(v2);
1478	<	checkIncomplete(h);
1479	<	f.complete(v1);
1480	<
1481	<	checkCompletedWithWrappedCFException(h);
1477	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1478	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1479	>	assertTrue(f.complete(v1));
1480	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1481	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1482	>
1483	>	checkCompletedWithWrappedCFException(h0);
1484	>	checkCompletedWithWrappedCFException(h1);
1485	>	checkCompletedWithWrappedCFException(h2);
1486	>	checkCompletedWithWrappedCFException(h3);
1487		checkCompletedNormally(f, v1);
1488	<	checkCompletedNormally(g, v2);
1292	<	}
1293	<	}
1488	>	}}
1489
1490		/**
1491	<	* thenCombine result completes exceptionally if either source cancelled
1491	>	* thenAccept result completes normally after normal completion of source
1492		*/
1493	<	public void testThenCombine_sourceCancelled1() {
1493	>	public void testThenAccept_normalCompletion() {
1494		for (ExecutionMode m : ExecutionMode.values())
1495	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1496	<	for (Integer v1 : new Integer[] { 1, null }) {
1302	<
1303	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1304	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1305	<	final SubtractFunction r = new SubtractFunction();
1306	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1307	<
1308	<	assertTrue(f.cancel(mayInterruptIfRunning));
1309	<	checkIncomplete(h);
1310	<	g.complete(v1);
1311	<
1312	<	checkCompletedWithWrappedCancellationException(h);
1313	<	checkCancelled(f);
1314	<	assertEquals(0, r.invocationCount);
1315	<	checkCompletedNormally(g, v1);
1316	<	}
1317	<	}
1318	<
1319	<	public void testThenCombine_sourceCancelled2() {
1320	<	for (ExecutionMode m : ExecutionMode.values())
1321	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1322	<	for (Integer v1 : new Integer[] { 1, null }) {
1323	<
1495	>	for (Integer v1 : new Integer[] { 1, null })
1496	>	{
1497		final CompletableFuture<Integer> f = new CompletableFuture<>();
1498	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1499	<	final SubtractFunction r = new SubtractFunction();
1327	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1498	>	final NoopConsumer[] rs = new NoopConsumer[4];
1499	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1500
1501	<	assertTrue(g.cancel(mayInterruptIfRunning));
1502	<	checkIncomplete(h);
1503	<	f.complete(v1);
1504	<
1505	<	checkCompletedWithWrappedCancellationException(h);
1506	<	checkCancelled(g);
1507	<	assertEquals(0, r.invocationCount);
1501	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1502	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1503	>	checkIncomplete(h0);
1504	>	checkIncomplete(h1);
1505	>	assertTrue(f.complete(v1));
1506	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1507	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1508	>
1509	>	checkCompletedNormally(h0, null);
1510	>	checkCompletedNormally(h1, null);
1511	>	checkCompletedNormally(h2, null);
1512	>	checkCompletedNormally(h3, null);
1513		checkCompletedNormally(f, v1);
1514	<	}
1515	<	}
1514	>	for (NoopConsumer r : rs) r.assertValue(v1);
1515	>	}}
1516
1517	<	public void testThenCombine_sourceCancelled3() {
1517	>	/**
1518	>	* thenAccept result completes exceptionally after exceptional
1519	>	* completion of source
1520	>	*/
1521	>	public void testThenAccept_exceptionalCompletion() {
1522		for (ExecutionMode m : ExecutionMode.values())
1523	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1524	<	for (Integer v1 : new Integer[] { 1, null }) {
1344	<
1523	>	{
1524	>	final CFException ex = new CFException();
1525		final CompletableFuture<Integer> f = new CompletableFuture<>();
1526	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1527	<	final SubtractFunction r = new SubtractFunction();
1348	<
1349	<	assertTrue(g.cancel(mayInterruptIfRunning));
1350	<	f.complete(v1);
1351	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1526	>	final NoopConsumer[] rs = new NoopConsumer[4];
1527	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1528
1529	<	checkCompletedWithWrappedCancellationException(h);
1530	<	checkCancelled(g);
1531	<	assertEquals(0, r.invocationCount);
1532	<	checkCompletedNormally(f, v1);
1533	<	}
1534	<	}
1529	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1530	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1531	>	assertTrue(f.completeExceptionally(ex));
1532	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1533	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1534	>
1535	>	checkCompletedWithWrappedException(h0, ex);
1536	>	checkCompletedWithWrappedException(h1, ex);
1537	>	checkCompletedWithWrappedException(h2, ex);
1538	>	checkCompletedWithWrappedException(h3, ex);
1539	>	checkCompletedExceptionally(f, ex);
1540	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1541	>	}}
1542
1543	<	public void testThenCombine_sourceCancelled4() {
1543	>	/**
1544	>	* thenAccept result completes exceptionally if source cancelled
1545	>	*/
1546	>	public void testThenAccept_sourceCancelled() {
1547		for (ExecutionMode m : ExecutionMode.values())
1548		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1549	<	for (Integer v1 : new Integer[] { 1, null }) {
1364	<
1549	>	{
1550		final CompletableFuture<Integer> f = new CompletableFuture<>();
1551	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1552	<	final SubtractFunction r = new SubtractFunction();
1551	>	final NoopConsumer[] rs = new NoopConsumer[4];
1552	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1553
1554	+	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1555	+	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1556		assertTrue(f.cancel(mayInterruptIfRunning));
1557	<	g.complete(v1);
1558	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1557	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1558	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1559
1560	<	checkCompletedWithWrappedCancellationException(h);
1560	>	checkCompletedWithWrappedCancellationException(h0);
1561	>	checkCompletedWithWrappedCancellationException(h1);
1562	>	checkCompletedWithWrappedCancellationException(h2);
1563	>	checkCompletedWithWrappedCancellationException(h3);
1564		checkCancelled(f);
1565	<	assertEquals(0, r.invocationCount);
1566	<	checkCompletedNormally(g, v1);
1377	<	}
1378	<	}
1565	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1566	>	}}
1567
1568		/**
1569	<	* thenAcceptBoth result completes normally after normal
1382	<	* completion of sources
1569	>	* thenAccept result completes exceptionally if action does
1570		*/
1571	<	public void testThenAcceptBoth_normalCompletion1() {
1571	>	public void testThenAccept_actionFailed() {
1572		for (ExecutionMode m : ExecutionMode.values())
1573		for (Integer v1 : new Integer[] { 1, null })
1574	<	for (Integer v2 : new Integer[] { 2, null }) {
1388	<
1389	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1390	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1391	<	final SubtractAction r = new SubtractAction();
1392	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1393	<
1394	<	f.complete(v1);
1395	<	checkIncomplete(h);
1396	<	assertEquals(0, r.invocationCount);
1397	<	g.complete(v2);
1398	<
1399	<	checkCompletedNormally(h, null);
1400	<	assertEquals(subtract(v1, v2), r.value);
1401	<	checkCompletedNormally(f, v1);
1402	<	checkCompletedNormally(g, v2);
1403	<	}
1404	<	}
1405	<
1406	<	public void testThenAcceptBoth_normalCompletion2() {
1407	<	for (ExecutionMode m : ExecutionMode.values())
1408	<	for (Integer v1 : new Integer[] { 1, null })
1409	<	for (Integer v2 : new Integer[] { 2, null }) {
1410	<
1574	>	{
1575		final CompletableFuture<Integer> f = new CompletableFuture<>();
1576	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1577	<	final SubtractAction r = new SubtractAction();
1414	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1576	>	final FailingConsumer[] rs = new FailingConsumer[4];
1577	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1578
1579	<	g.complete(v2);
1580	<	checkIncomplete(h);
1581	<	assertEquals(0, r.invocationCount);
1582	<	f.complete(v1);
1583	<
1584	<	checkCompletedNormally(h, null);
1585	<	assertEquals(subtract(v1, v2), r.value);
1579	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1580	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1581	>	assertTrue(f.complete(v1));
1582	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1583	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1584	>
1585	>	checkCompletedWithWrappedCFException(h0);
1586	>	checkCompletedWithWrappedCFException(h1);
1587	>	checkCompletedWithWrappedCFException(h2);
1588	>	checkCompletedWithWrappedCFException(h3);
1589		checkCompletedNormally(f, v1);
1590	<	checkCompletedNormally(g, v2);
1425	<	}
1426	<	}
1590	>	}}
1591
1592	<	public void testThenAcceptBoth_normalCompletion3() {
1592	>	/**
1593	>	* thenCombine result completes normally after normal completion
1594	>	* of sources
1595	>	*/
1596	>	public void testThenCombine_normalCompletion() {
1597		for (ExecutionMode m : ExecutionMode.values())
1598	+	for (boolean fFirst : new boolean[] { true, false })
1599		for (Integer v1 : new Integer[] { 1, null })
1600	<	for (Integer v2 : new Integer[] { 2, null }) {
1601	<
1600	>	for (Integer v2 : new Integer[] { 2, null })
1601	>	{
1602		final CompletableFuture<Integer> f = new CompletableFuture<>();
1603		final CompletableFuture<Integer> g = new CompletableFuture<>();
1604	<	final SubtractAction r = new SubtractAction();
1604	>	final SubtractFunction[] rs = new SubtractFunction[6];
1605	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1606
1607	<	g.complete(v2);
1608	<	f.complete(v1);
1609	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1607	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1608	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1609	>	final Integer w1 =  fFirst ? v1 : v2;
1610	>	final Integer w2 = !fFirst ? v1 : v2;
1611	>
1612	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1613	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1614	>	assertTrue(fst.complete(w1));
1615	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1616	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1617	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1618	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1619	>	checkCompletedNormally(h1, subtract(w1, w1));
1620	>	checkCompletedNormally(h3, subtract(w1, w1));
1621	>	rs[1].assertValue(subtract(w1, w1));
1622	>	rs[3].assertValue(subtract(w1, w1));
1623	>	assertTrue(snd.complete(w2));
1624	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1625	>
1626	>	checkCompletedNormally(h0, subtract(v1, v2));
1627	>	checkCompletedNormally(h2, subtract(v1, v2));
1628	>	checkCompletedNormally(h4, subtract(v1, v2));
1629	>	rs[0].assertValue(subtract(v1, v2));
1630	>	rs[2].assertValue(subtract(v1, v2));
1631	>	rs[4].assertValue(subtract(v1, v2));
1632
1441	–	checkCompletedNormally(h, null);
1442	–	assertEquals(subtract(v1, v2), r.value);
1633		checkCompletedNormally(f, v1);
1634		checkCompletedNormally(g, v2);
1635	<	}
1446	<	}
1447	<
1448	<	public void testThenAcceptBoth_normalCompletion4() {
1449	<	for (ExecutionMode m : ExecutionMode.values())
1450	<	for (Integer v1 : new Integer[] { 1, null })
1451	<	for (Integer v2 : new Integer[] { 2, null }) {
1452	<
1453	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1454	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1455	<	final SubtractAction r = new SubtractAction();
1456	<
1457	<	f.complete(v1);
1458	<	g.complete(v2);
1459	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1460	<
1461	<	checkCompletedNormally(h, null);
1462	<	assertEquals(subtract(v1, v2), r.value);
1463	<	checkCompletedNormally(f, v1);
1464	<	checkCompletedNormally(g, v2);
1465	<	}
1466	<	}
1635	>	}}
1636
1637		/**
1638	<	* thenAcceptBoth result completes exceptionally after exceptional
1638	>	* thenCombine result completes exceptionally after exceptional
1639		* completion of either source
1640		*/
1641	<	public void testThenAcceptBoth_exceptionalCompletion1() {
1641	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1642		for (ExecutionMode m : ExecutionMode.values())
1643	<	for (Integer v1 : new Integer[] { 1, null }) {
1644	<
1645	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1646	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1478	<	final SubtractAction r = new SubtractAction();
1479	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1480	<	final CFException ex = new CFException();
1481	<
1482	<	f.completeExceptionally(ex);
1483	<	checkIncomplete(h);
1484	<	g.complete(v1);
1485	<
1486	<	checkCompletedWithWrappedCFException(h, ex);
1487	<	checkCompletedWithWrappedCFException(f, ex);
1488	<	assertEquals(0, r.invocationCount);
1489	<	checkCompletedNormally(g, v1);
1490	<	}
1491	<	}
1492	<
1493	<	public void testThenAcceptBoth_exceptionalCompletion2() {
1494	<	for (ExecutionMode m : ExecutionMode.values())
1495	<	for (Integer v1 : new Integer[] { 1, null }) {
1496	<
1497	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1498	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1499	<	final SubtractAction r = new SubtractAction();
1500	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1501	<	final CFException ex = new CFException();
1502	<
1503	<	g.completeExceptionally(ex);
1504	<	checkIncomplete(h);
1505	<	f.complete(v1);
1506	<
1507	<	checkCompletedWithWrappedCFException(h, ex);
1508	<	checkCompletedWithWrappedCFException(g, ex);
1509	<	assertEquals(0, r.invocationCount);
1510	<	checkCompletedNormally(f, v1);
1511	<	}
1512	<	}
1513	<
1514	<	public void testThenAcceptBoth_exceptionalCompletion3() {
1515	<	for (ExecutionMode m : ExecutionMode.values())
1516	<	for (Integer v1 : new Integer[] { 1, null }) {
1517	<
1518	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1519	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1520	<	final SubtractAction r = new SubtractAction();
1521	<	final CFException ex = new CFException();
1522	<
1523	<	g.completeExceptionally(ex);
1524	<	f.complete(v1);
1525	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1526	<
1527	<	checkCompletedWithWrappedCFException(h, ex);
1528	<	checkCompletedWithWrappedCFException(g, ex);
1529	<	assertEquals(0, r.invocationCount);
1530	<	checkCompletedNormally(f, v1);
1531	<	}
1532	<	}
1533	<
1534	<	public void testThenAcceptBoth_exceptionalCompletion4() {
1535	<	for (ExecutionMode m : ExecutionMode.values())
1536	<	for (Integer v1 : new Integer[] { 1, null }) {
1537	<
1643	>	for (boolean fFirst : new boolean[] { true, false })
1644	>	for (boolean failFirst : new boolean[] { true, false })
1645	>	for (Integer v1 : new Integer[] { 1, null })
1646	>	{
1647		final CompletableFuture<Integer> f = new CompletableFuture<>();
1648		final CompletableFuture<Integer> g = new CompletableFuture<>();
1540	–	final SubtractAction r = new SubtractAction();
1649		final CFException ex = new CFException();
1650	<
1651	<	f.completeExceptionally(ex);
1652	<	g.complete(v1);
1653	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1654	<
1655	<	checkCompletedWithWrappedCFException(h, ex);
1656	<	checkCompletedWithWrappedCFException(f, ex);
1657	<	assertEquals(0, r.invocationCount);
1658	<	checkCompletedNormally(g, v1);
1659	<	}
1660	<	}
1650	>	final SubtractFunction r1 = new SubtractFunction(m);
1651	>	final SubtractFunction r2 = new SubtractFunction(m);
1652	>	final SubtractFunction r3 = new SubtractFunction(m);
1653	>
1654	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1655	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1656	>	final Callable<Boolean> complete1 = failFirst ?
1657	>	() -> fst.completeExceptionally(ex) :
1658	>	() -> fst.complete(v1);
1659	>	final Callable<Boolean> complete2 = failFirst ?
1660	>	() -> snd.complete(v1) :
1661	>	() -> snd.completeExceptionally(ex);
1662	>
1663	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1664	>	assertTrue(complete1.call());
1665	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1666	>	checkIncomplete(h1);
1667	>	checkIncomplete(h2);
1668	>	assertTrue(complete2.call());
1669	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1670	>
1671	>	checkCompletedWithWrappedException(h1, ex);
1672	>	checkCompletedWithWrappedException(h2, ex);
1673	>	checkCompletedWithWrappedException(h3, ex);
1674	>	r1.assertNotInvoked();
1675	>	r2.assertNotInvoked();
1676	>	r3.assertNotInvoked();
1677	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1678	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1679	>	}}
1680
1681		/**
1682	<	* thenAcceptBoth result completes exceptionally if action does
1682	>	* thenCombine result completes exceptionally if either source cancelled
1683		*/
1684	<	public void testThenAcceptBoth_actionFailed1() {
1684	>	public void testThenCombine_sourceCancelled() throws Throwable {
1685		for (ExecutionMode m : ExecutionMode.values())
1686	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1687	+	for (boolean fFirst : new boolean[] { true, false })
1688	+	for (boolean failFirst : new boolean[] { true, false })
1689		for (Integer v1 : new Integer[] { 1, null })
1690	<	for (Integer v2 : new Integer[] { 2, null }) {
1561	<
1690	>	{
1691		final CompletableFuture<Integer> f = new CompletableFuture<>();
1692		final CompletableFuture<Integer> g = new CompletableFuture<>();
1693	<	final FailingBiConsumer r = new FailingBiConsumer();
1694	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1695	<
1696	<	f.complete(v1);
1697	<	checkIncomplete(h);
1698	<	g.complete(v2);
1699	<
1700	<	checkCompletedWithWrappedCFException(h);
1701	<	checkCompletedNormally(f, v1);
1702	<	checkCompletedNormally(g, v2);
1703	<	}
1704	<	}
1693	>	final SubtractFunction r1 = new SubtractFunction(m);
1694	>	final SubtractFunction r2 = new SubtractFunction(m);
1695	>	final SubtractFunction r3 = new SubtractFunction(m);
1696	>
1697	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1698	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1699	>	final Callable<Boolean> complete1 = failFirst ?
1700	>	() -> fst.cancel(mayInterruptIfRunning) :
1701	>	() -> fst.complete(v1);
1702	>	final Callable<Boolean> complete2 = failFirst ?
1703	>	() -> snd.complete(v1) :
1704	>	() -> snd.cancel(mayInterruptIfRunning);
1705	>
1706	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1707	>	assertTrue(complete1.call());
1708	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1709	>	checkIncomplete(h1);
1710	>	checkIncomplete(h2);
1711	>	assertTrue(complete2.call());
1712	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1713	>
1714	>	checkCompletedWithWrappedCancellationException(h1);
1715	>	checkCompletedWithWrappedCancellationException(h2);
1716	>	checkCompletedWithWrappedCancellationException(h3);
1717	>	r1.assertNotInvoked();
1718	>	r2.assertNotInvoked();
1719	>	r3.assertNotInvoked();
1720	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1721	>	checkCancelled(failFirst ? fst : snd);
1722	>	}}
1723
1724	<	public void testThenAcceptBoth_actionFailed2() {
1724	>	/**
1725	>	* thenCombine result completes exceptionally if action does
1726	>	*/
1727	>	public void testThenCombine_actionFailed() {
1728		for (ExecutionMode m : ExecutionMode.values())
1729	+	for (boolean fFirst : new boolean[] { true, false })
1730		for (Integer v1 : new Integer[] { 1, null })
1731	<	for (Integer v2 : new Integer[] { 2, null }) {
1732	<
1731	>	for (Integer v2 : new Integer[] { 2, null })
1732	>	{
1733		final CompletableFuture<Integer> f = new CompletableFuture<>();
1734		final CompletableFuture<Integer> g = new CompletableFuture<>();
1735	<	final FailingBiConsumer r = new FailingBiConsumer();
1736	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1737	<
1738	<	g.complete(v2);
1739	<	checkIncomplete(h);
1740	<	f.complete(v1);
1741	<
1742	<	checkCompletedWithWrappedCFException(h);
1735	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1736	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1737	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1738	>
1739	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1740	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1741	>	final Integer w1 =  fFirst ? v1 : v2;
1742	>	final Integer w2 = !fFirst ? v1 : v2;
1743	>
1744	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1745	>	assertTrue(fst.complete(w1));
1746	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1747	>	assertTrue(snd.complete(w2));
1748	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1749	>
1750	>	checkCompletedWithWrappedCFException(h1);
1751	>	checkCompletedWithWrappedCFException(h2);
1752	>	checkCompletedWithWrappedCFException(h3);
1753	>	r1.assertInvoked();
1754	>	r2.assertInvoked();
1755	>	r3.assertInvoked();
1756		checkCompletedNormally(f, v1);
1757		checkCompletedNormally(g, v2);
1758	<	}
1595	<	}
1758	>	}}
1759
1760		/**
1761	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1761	>	* thenAcceptBoth result completes normally after normal
1762	>	* completion of sources
1763		*/
1764	<	public void testThenAcceptBoth_sourceCancelled1() {
1601	<	for (ExecutionMode m : ExecutionMode.values())
1602	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1603	<	for (Integer v1 : new Integer[] { 1, null }) {
1604	<
1605	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1606	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1607	<	final SubtractAction r = new SubtractAction();
1608	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1609	<
1610	<	assertTrue(f.cancel(mayInterruptIfRunning));
1611	<	checkIncomplete(h);
1612	<	g.complete(v1);
1613	<
1614	<	checkCompletedWithWrappedCancellationException(h);
1615	<	checkCancelled(f);
1616	<	assertEquals(0, r.invocationCount);
1617	<	checkCompletedNormally(g, v1);
1618	<	}
1619	<	}
1620	<
1621	<	public void testThenAcceptBoth_sourceCancelled2() {
1764	>	public void testThenAcceptBoth_normalCompletion() {
1765		for (ExecutionMode m : ExecutionMode.values())
1766	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1767	<	for (Integer v1 : new Integer[] { 1, null }) {
1768	<
1769	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1627	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1628	<	final SubtractAction r = new SubtractAction();
1629	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1630	<
1631	<	assertTrue(g.cancel(mayInterruptIfRunning));
1632	<	checkIncomplete(h);
1633	<	f.complete(v1);
1634	<
1635	<	checkCompletedWithWrappedCancellationException(h);
1636	<	checkCancelled(g);
1637	<	assertEquals(0, r.invocationCount);
1638	<	checkCompletedNormally(f, v1);
1639	<	}
1640	<	}
1641	<
1642	<	public void testThenAcceptBoth_sourceCancelled3() {
1643	<	for (ExecutionMode m : ExecutionMode.values())
1644	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1645	<	for (Integer v1 : new Integer[] { 1, null }) {
1646	<
1766	>	for (boolean fFirst : new boolean[] { true, false })
1767	>	for (Integer v1 : new Integer[] { 1, null })
1768	>	for (Integer v2 : new Integer[] { 2, null })
1769	>	{
1770		final CompletableFuture<Integer> f = new CompletableFuture<>();
1771		final CompletableFuture<Integer> g = new CompletableFuture<>();
1772	<	final SubtractAction r = new SubtractAction();
1773	<
1774	<	assertTrue(g.cancel(mayInterruptIfRunning));
1775	<	f.complete(v1);
1776	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1777	<
1778	<	checkCompletedWithWrappedCancellationException(h);
1779	<	checkCancelled(g);
1780	<	assertEquals(0, r.invocationCount);
1772	>	final SubtractAction r1 = new SubtractAction(m);
1773	>	final SubtractAction r2 = new SubtractAction(m);
1774	>	final SubtractAction r3 = new SubtractAction(m);
1775	>
1776	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1777	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1778	>	final Integer w1 =  fFirst ? v1 : v2;
1779	>	final Integer w2 = !fFirst ? v1 : v2;
1780	>
1781	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1782	>	assertTrue(fst.complete(w1));
1783	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1784	>	checkIncomplete(h1);
1785	>	checkIncomplete(h2);
1786	>	r1.assertNotInvoked();
1787	>	r2.assertNotInvoked();
1788	>	assertTrue(snd.complete(w2));
1789	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1790	>
1791	>	checkCompletedNormally(h1, null);
1792	>	checkCompletedNormally(h2, null);
1793	>	checkCompletedNormally(h3, null);
1794	>	r1.assertValue(subtract(v1, v2));
1795	>	r2.assertValue(subtract(v1, v2));
1796	>	r3.assertValue(subtract(v1, v2));
1797		checkCompletedNormally(f, v1);
1798	<	}
1799	<	}
1661	<
1662	<	public void testThenAcceptBoth_sourceCancelled4() {
1663	<	for (ExecutionMode m : ExecutionMode.values())
1664	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1665	<	for (Integer v1 : new Integer[] { 1, null }) {
1666	<
1667	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1668	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1669	<	final SubtractAction r = new SubtractAction();
1670	<
1671	<	assertTrue(f.cancel(mayInterruptIfRunning));
1672	<	g.complete(v1);
1673	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1674	<
1675	<	checkCompletedWithWrappedCancellationException(h);
1676	<	checkCancelled(f);
1677	<	assertEquals(0, r.invocationCount);
1678	<	checkCompletedNormally(g, v1);
1679	<	}
1680	<	}
1798	>	checkCompletedNormally(g, v2);
1799	>	}}
1800
1801		/**
1802	<	* runAfterBoth result completes normally after normal
1803	<	* completion of sources
1802	>	* thenAcceptBoth result completes exceptionally after exceptional
1803	>	* completion of either source
1804		*/
1805	<	public void testRunAfterBoth_normalCompletion1() {
1805	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1806		for (ExecutionMode m : ExecutionMode.values())
1807	+	for (boolean fFirst : new boolean[] { true, false })
1808	+	for (boolean failFirst : new boolean[] { true, false })
1809		for (Integer v1 : new Integer[] { 1, null })
1810	<	for (Integer v2 : new Integer[] { 2, null }) {
1690	<
1810	>	{
1811		final CompletableFuture<Integer> f = new CompletableFuture<>();
1812		final CompletableFuture<Integer> g = new CompletableFuture<>();
1813	<	final Noop r = new Noop();
1814	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1815	<
1816	<	f.complete(v1);
1817	<	checkIncomplete(h);
1818	<	assertEquals(0, r.invocationCount);
1819	<	g.complete(v2);
1820	<
1821	<	checkCompletedNormally(h, null);
1822	<	assertEquals(1, r.invocationCount);
1823	<	checkCompletedNormally(f, v1);
1824	<	checkCompletedNormally(g, v2);
1825	<	}
1826	<	}
1813	>	final CFException ex = new CFException();
1814	>	final SubtractAction r1 = new SubtractAction(m);
1815	>	final SubtractAction r2 = new SubtractAction(m);
1816	>	final SubtractAction r3 = new SubtractAction(m);
1817	>
1818	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1819	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1820	>	final Callable<Boolean> complete1 = failFirst ?
1821	>	() -> fst.completeExceptionally(ex) :
1822	>	() -> fst.complete(v1);
1823	>	final Callable<Boolean> complete2 = failFirst ?
1824	>	() -> snd.complete(v1) :
1825	>	() -> snd.completeExceptionally(ex);
1826	>
1827	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1828	>	assertTrue(complete1.call());
1829	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1830	>	checkIncomplete(h1);
1831	>	checkIncomplete(h2);
1832	>	assertTrue(complete2.call());
1833	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1834	>
1835	>	checkCompletedWithWrappedException(h1, ex);
1836	>	checkCompletedWithWrappedException(h2, ex);
1837	>	checkCompletedWithWrappedException(h3, ex);
1838	>	r1.assertNotInvoked();
1839	>	r2.assertNotInvoked();
1840	>	r3.assertNotInvoked();
1841	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1842	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1843	>	}}
1844
1845	<	public void testRunAfterBoth_normalCompletion2() {
1845	>	/**
1846	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1847	>	*/
1848	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1849		for (ExecutionMode m : ExecutionMode.values())
1850	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1851	+	for (boolean fFirst : new boolean[] { true, false })
1852	+	for (boolean failFirst : new boolean[] { true, false })
1853		for (Integer v1 : new Integer[] { 1, null })
1854	<	for (Integer v2 : new Integer[] { 2, null }) {
1712	<
1854	>	{
1855		final CompletableFuture<Integer> f = new CompletableFuture<>();
1856		final CompletableFuture<Integer> g = new CompletableFuture<>();
1857	<	final Noop r = new Noop();
1858	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1859	<
1860	<	g.complete(v2);
1861	<	checkIncomplete(h);
1862	<	assertEquals(0, r.invocationCount);
1863	<	f.complete(v1);
1864	<
1865	<	checkCompletedNormally(h, null);
1866	<	assertEquals(1, r.invocationCount);
1867	<	checkCompletedNormally(f, v1);
1868	<	checkCompletedNormally(g, v2);
1869	<	}
1870	<	}
1857	>	final SubtractAction r1 = new SubtractAction(m);
1858	>	final SubtractAction r2 = new SubtractAction(m);
1859	>	final SubtractAction r3 = new SubtractAction(m);
1860	>
1861	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1862	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1863	>	final Callable<Boolean> complete1 = failFirst ?
1864	>	() -> fst.cancel(mayInterruptIfRunning) :
1865	>	() -> fst.complete(v1);
1866	>	final Callable<Boolean> complete2 = failFirst ?
1867	>	() -> snd.complete(v1) :
1868	>	() -> snd.cancel(mayInterruptIfRunning);
1869	>
1870	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1871	>	assertTrue(complete1.call());
1872	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1873	>	checkIncomplete(h1);
1874	>	checkIncomplete(h2);
1875	>	assertTrue(complete2.call());
1876	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1877	>
1878	>	checkCompletedWithWrappedCancellationException(h1);
1879	>	checkCompletedWithWrappedCancellationException(h2);
1880	>	checkCompletedWithWrappedCancellationException(h3);
1881	>	r1.assertNotInvoked();
1882	>	r2.assertNotInvoked();
1883	>	r3.assertNotInvoked();
1884	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1885	>	checkCancelled(failFirst ? fst : snd);
1886	>	}}
1887
1888	<	public void testRunAfterBoth_normalCompletion3() {
1888	>	/**
1889	>	* thenAcceptBoth result completes exceptionally if action does
1890	>	*/
1891	>	public void testThenAcceptBoth_actionFailed() {
1892		for (ExecutionMode m : ExecutionMode.values())
1893	+	for (boolean fFirst : new boolean[] { true, false })
1894		for (Integer v1 : new Integer[] { 1, null })
1895	<	for (Integer v2 : new Integer[] { 2, null }) {
1896	<
1895	>	for (Integer v2 : new Integer[] { 2, null })
1896	>	{
1897		final CompletableFuture<Integer> f = new CompletableFuture<>();
1898		final CompletableFuture<Integer> g = new CompletableFuture<>();
1899	<	final Noop r = new Noop();
1900	<
1901	<	g.complete(v2);
1902	<	f.complete(v1);
1903	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1904	<
1905	<	checkCompletedNormally(h, null);
1906	<	assertEquals(1, r.invocationCount);
1899	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1900	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1901	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1902	>
1903	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1904	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1905	>	final Integer w1 =  fFirst ? v1 : v2;
1906	>	final Integer w2 = !fFirst ? v1 : v2;
1907	>
1908	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1909	>	assertTrue(fst.complete(w1));
1910	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1911	>	assertTrue(snd.complete(w2));
1912	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1913	>
1914	>	checkCompletedWithWrappedCFException(h1);
1915	>	checkCompletedWithWrappedCFException(h2);
1916	>	checkCompletedWithWrappedCFException(h3);
1917	>	r1.assertInvoked();
1918	>	r2.assertInvoked();
1919	>	r3.assertInvoked();
1920		checkCompletedNormally(f, v1);
1921		checkCompletedNormally(g, v2);
1922	<	}
1748	<	}
1922	>	}}
1923
1924	<	public void testRunAfterBoth_normalCompletion4() {
1924	>	/**
1925	>	* runAfterBoth result completes normally after normal
1926	>	* completion of sources
1927	>	*/
1928	>	public void testRunAfterBoth_normalCompletion() {
1929		for (ExecutionMode m : ExecutionMode.values())
1930	+	for (boolean fFirst : new boolean[] { true, false })
1931		for (Integer v1 : new Integer[] { 1, null })
1932	<	for (Integer v2 : new Integer[] { 2, null }) {
1933	<
1932	>	for (Integer v2 : new Integer[] { 2, null })
1933	>	{
1934		final CompletableFuture<Integer> f = new CompletableFuture<>();
1935		final CompletableFuture<Integer> g = new CompletableFuture<>();
1936	<	final Noop r = new Noop();
1937	<
1938	<	f.complete(v1);
1939	<	g.complete(v2);
1940	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1941	<
1942	<	checkCompletedNormally(h, null);
1943	<	assertEquals(1, r.invocationCount);
1936	>	final Noop r1 = new Noop(m);
1937	>	final Noop r2 = new Noop(m);
1938	>	final Noop r3 = new Noop(m);
1939	>
1940	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1941	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1942	>	final Integer w1 =  fFirst ? v1 : v2;
1943	>	final Integer w2 = !fFirst ? v1 : v2;
1944	>
1945	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1946	>	assertTrue(fst.complete(w1));
1947	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1948	>	checkIncomplete(h1);
1949	>	checkIncomplete(h2);
1950	>	r1.assertNotInvoked();
1951	>	r2.assertNotInvoked();
1952	>	assertTrue(snd.complete(w2));
1953	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1954	>
1955	>	checkCompletedNormally(h1, null);
1956	>	checkCompletedNormally(h2, null);
1957	>	checkCompletedNormally(h3, null);
1958	>	r1.assertInvoked();
1959	>	r2.assertInvoked();
1960	>	r3.assertInvoked();
1961		checkCompletedNormally(f, v1);
1962		checkCompletedNormally(g, v2);
1963	<	}
1768	<	}
1963	>	}}
1964
1965		/**
1966		* runAfterBoth result completes exceptionally after exceptional
1967		* completion of either source
1968		*/
1969	<	public void testRunAfterBoth_exceptionalCompletion1() {
1775	<	for (ExecutionMode m : ExecutionMode.values())
1776	<	for (Integer v1 : new Integer[] { 1, null }) {
1777	<
1778	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1779	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1780	<	final Noop r = new Noop();
1781	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1782	<	final CFException ex = new CFException();
1783	<
1784	<	f.completeExceptionally(ex);
1785	<	checkIncomplete(h);
1786	<	g.complete(v1);
1787	<
1788	<	checkCompletedWithWrappedCFException(h, ex);
1789	<	checkCompletedWithWrappedCFException(f, ex);
1790	<	assertEquals(0, r.invocationCount);
1791	<	checkCompletedNormally(g, v1);
1792	<	}
1793	<	}
1794	<
1795	<	public void testRunAfterBoth_exceptionalCompletion2() {
1796	<	for (ExecutionMode m : ExecutionMode.values())
1797	<	for (Integer v1 : new Integer[] { 1, null }) {
1798	<
1799	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1800	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1801	<	final Noop r = new Noop();
1802	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1803	<	final CFException ex = new CFException();
1804	<
1805	<	g.completeExceptionally(ex);
1806	<	checkIncomplete(h);
1807	<	f.complete(v1);
1808	<
1809	<	checkCompletedWithWrappedCFException(h, ex);
1810	<	checkCompletedWithWrappedCFException(g, ex);
1811	<	assertEquals(0, r.invocationCount);
1812	<	checkCompletedNormally(f, v1);
1813	<	}
1814	<	}
1815	<
1816	<	public void testRunAfterBoth_exceptionalCompletion3() {
1969	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1970		for (ExecutionMode m : ExecutionMode.values())
1971	<	for (Integer v1 : new Integer[] { 1, null }) {
1972	<
1973	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1974	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1822	<	final Noop r = new Noop();
1823	<	final CFException ex = new CFException();
1824	<
1825	<	g.completeExceptionally(ex);
1826	<	f.complete(v1);
1827	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1828	<
1829	<	checkCompletedWithWrappedCFException(h, ex);
1830	<	checkCompletedWithWrappedCFException(g, ex);
1831	<	assertEquals(0, r.invocationCount);
1832	<	checkCompletedNormally(f, v1);
1833	<	}
1834	<	}
1835	<
1836	<	public void testRunAfterBoth_exceptionalCompletion4() {
1837	<	for (ExecutionMode m : ExecutionMode.values())
1838	<	for (Integer v1 : new Integer[] { 1, null }) {
1839	<
1971	>	for (boolean fFirst : new boolean[] { true, false })
1972	>	for (boolean failFirst : new boolean[] { true, false })
1973	>	for (Integer v1 : new Integer[] { 1, null })
1974	>	{
1975		final CompletableFuture<Integer> f = new CompletableFuture<>();
1976		final CompletableFuture<Integer> g = new CompletableFuture<>();
1842	–	final Noop r = new Noop();
1977		final CFException ex = new CFException();
1978	<
1979	<	f.completeExceptionally(ex);
1980	<	g.complete(v1);
1981	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1982	<
1983	<	checkCompletedWithWrappedCFException(h, ex);
1984	<	checkCompletedWithWrappedCFException(f, ex);
1985	<	assertEquals(0, r.invocationCount);
1986	<	checkCompletedNormally(g, v1);
1987	<	}
1988	<	}
1978	>	final Noop r1 = new Noop(m);
1979	>	final Noop r2 = new Noop(m);
1980	>	final Noop r3 = new Noop(m);
1981	>
1982	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1983	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1984	>	final Callable<Boolean> complete1 = failFirst ?
1985	>	() -> fst.completeExceptionally(ex) :
1986	>	() -> fst.complete(v1);
1987	>	final Callable<Boolean> complete2 = failFirst ?
1988	>	() -> snd.complete(v1) :
1989	>	() -> snd.completeExceptionally(ex);
1990	>
1991	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1992	>	assertTrue(complete1.call());
1993	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1994	>	checkIncomplete(h1);
1995	>	checkIncomplete(h2);
1996	>	assertTrue(complete2.call());
1997	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1998	>
1999	>	checkCompletedWithWrappedException(h1, ex);
2000	>	checkCompletedWithWrappedException(h2, ex);
2001	>	checkCompletedWithWrappedException(h3, ex);
2002	>	r1.assertNotInvoked();
2003	>	r2.assertNotInvoked();
2004	>	r3.assertNotInvoked();
2005	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2006	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2007	>	}}
2008
2009		/**
2010	<	* runAfterBoth result completes exceptionally if action does
2010	>	* runAfterBoth result completes exceptionally if either source cancelled
2011		*/
2012	<	public void testRunAfterBoth_actionFailed1() {
1860	<	for (ExecutionMode m : ExecutionMode.values())
1861	<	for (Integer v1 : new Integer[] { 1, null })
1862	<	for (Integer v2 : new Integer[] { 2, null }) {
1863	<
1864	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1865	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1866	<	final FailingNoop r = new FailingNoop();
1867	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1868	<
1869	<	f.complete(v1);
1870	<	checkIncomplete(h);
1871	<	g.complete(v2);
1872	<
1873	<	checkCompletedWithWrappedCFException(h);
1874	<	checkCompletedNormally(f, v1);
1875	<	checkCompletedNormally(g, v2);
1876	<	}
1877	<	}
1878	<
1879	<	public void testRunAfterBoth_actionFailed2() {
2012	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2013		for (ExecutionMode m : ExecutionMode.values())
2014	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2015	+	for (boolean fFirst : new boolean[] { true, false })
2016	+	for (boolean failFirst : new boolean[] { true, false })
2017		for (Integer v1 : new Integer[] { 1, null })
2018	<	for (Integer v2 : new Integer[] { 2, null }) {
1883	<
2018	>	{
2019		final CompletableFuture<Integer> f = new CompletableFuture<>();
2020		final CompletableFuture<Integer> g = new CompletableFuture<>();
2021	<	final FailingNoop r = new FailingNoop();
2022	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2023	<
2024	<	g.complete(v2);
2025	<	checkIncomplete(h);
2026	<	f.complete(v1);
2027	<
2028	<	checkCompletedWithWrappedCFException(h);
2029	<	checkCompletedNormally(f, v1);
2030	<	checkCompletedNormally(g, v2);
2031	<	}
2032	<	}
2021	>	final Noop r1 = new Noop(m);
2022	>	final Noop r2 = new Noop(m);
2023	>	final Noop r3 = new Noop(m);
2024	>
2025	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2026	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2027	>	final Callable<Boolean> complete1 = failFirst ?
2028	>	() -> fst.cancel(mayInterruptIfRunning) :
2029	>	() -> fst.complete(v1);
2030	>	final Callable<Boolean> complete2 = failFirst ?
2031	>	() -> snd.complete(v1) :
2032	>	() -> snd.cancel(mayInterruptIfRunning);
2033	>
2034	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2035	>	assertTrue(complete1.call());
2036	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2037	>	checkIncomplete(h1);
2038	>	checkIncomplete(h2);
2039	>	assertTrue(complete2.call());
2040	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2041	>
2042	>	checkCompletedWithWrappedCancellationException(h1);
2043	>	checkCompletedWithWrappedCancellationException(h2);
2044	>	checkCompletedWithWrappedCancellationException(h3);
2045	>	r1.assertNotInvoked();
2046	>	r2.assertNotInvoked();
2047	>	r3.assertNotInvoked();
2048	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2049	>	checkCancelled(failFirst ? fst : snd);
2050	>	}}
2051
2052		/**
2053	<	* runAfterBoth result completes exceptionally if either source cancelled
2053	>	* runAfterBoth result completes exceptionally if action does
2054		*/
2055	<	public void testRunAfterBoth_sourceCancelled1() {
2055	>	public void testRunAfterBoth_actionFailed() {
2056		for (ExecutionMode m : ExecutionMode.values())
2057	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2058	<	for (Integer v1 : new Integer[] { 1, null }) {
2059	<
2060	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1908	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1909	<	final Noop r = new Noop();
1910	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1911	<
1912	<	assertTrue(f.cancel(mayInterruptIfRunning));
1913	<	checkIncomplete(h);
1914	<	g.complete(v1);
1915	<
1916	<	checkCompletedWithWrappedCancellationException(h);
1917	<	checkCancelled(f);
1918	<	assertEquals(0, r.invocationCount);
1919	<	checkCompletedNormally(g, v1);
1920	<	}
1921	<	}
1922	<
1923	<	public void testRunAfterBoth_sourceCancelled2() {
1924	<	for (ExecutionMode m : ExecutionMode.values())
1925	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1926	<	for (Integer v1 : new Integer[] { 1, null }) {
1927	<
1928	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1929	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1930	<	final Noop r = new Noop();
1931	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1932	<
1933	<	assertTrue(g.cancel(mayInterruptIfRunning));
1934	<	checkIncomplete(h);
1935	<	f.complete(v1);
1936	<
1937	<	checkCompletedWithWrappedCancellationException(h);
1938	<	checkCancelled(g);
1939	<	assertEquals(0, r.invocationCount);
1940	<	checkCompletedNormally(f, v1);
1941	<	}
1942	<	}
1943	<
1944	<	public void testRunAfterBoth_sourceCancelled3() {
1945	<	for (ExecutionMode m : ExecutionMode.values())
1946	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1947	<	for (Integer v1 : new Integer[] { 1, null }) {
1948	<
2057	>	for (boolean fFirst : new boolean[] { true, false })
2058	>	for (Integer v1 : new Integer[] { 1, null })
2059	>	for (Integer v2 : new Integer[] { 2, null })
2060	>	{
2061		final CompletableFuture<Integer> f = new CompletableFuture<>();
2062		final CompletableFuture<Integer> g = new CompletableFuture<>();
2063	<	final Noop r = new Noop();
2064	<
2065	<	assertTrue(g.cancel(mayInterruptIfRunning));
2066	<	f.complete(v1);
2067	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2068	<
2069	<	checkCompletedWithWrappedCancellationException(h);
2070	<	checkCancelled(g);
2071	<	assertEquals(0, r.invocationCount);
2063	>	final FailingRunnable r1 = new FailingRunnable(m);
2064	>	final FailingRunnable r2 = new FailingRunnable(m);
2065	>	final FailingRunnable r3 = new FailingRunnable(m);
2066	>
2067	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2068	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2069	>	final Integer w1 =  fFirst ? v1 : v2;
2070	>	final Integer w2 = !fFirst ? v1 : v2;
2071	>
2072	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2073	>	assertTrue(fst.complete(w1));
2074	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2075	>	assertTrue(snd.complete(w2));
2076	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2077	>
2078	>	checkCompletedWithWrappedCFException(h1);
2079	>	checkCompletedWithWrappedCFException(h2);
2080	>	checkCompletedWithWrappedCFException(h3);
2081	>	r1.assertInvoked();
2082	>	r2.assertInvoked();
2083	>	r3.assertInvoked();
2084		checkCompletedNormally(f, v1);
2085	<	}
2086	<	}
1963	<
1964	<	public void testRunAfterBoth_sourceCancelled4() {
1965	<	for (ExecutionMode m : ExecutionMode.values())
1966	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1967	<	for (Integer v1 : new Integer[] { 1, null }) {
1968	<
1969	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1970	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1971	<	final Noop r = new Noop();
1972	<
1973	<	assertTrue(f.cancel(mayInterruptIfRunning));
1974	<	g.complete(v1);
1975	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1976	<
1977	<	checkCompletedWithWrappedCancellationException(h);
1978	<	checkCancelled(f);
1979	<	assertEquals(0, r.invocationCount);
1980	<	checkCompletedNormally(g, v1);
1981	<	}
1982	<	}
2085	>	checkCompletedNormally(g, v2);
2086	>	}}
2087
2088		/**
2089		* applyToEither result completes normally after normal completion
2090		* of either source
2091		*/
2092	<	public void testApplyToEither_normalCompletion1() {
1989	<	for (ExecutionMode m : ExecutionMode.values())
1990	<	for (Integer v1 : new Integer[] { 1, null })
1991	<	for (Integer v2 : new Integer[] { 2, null }) {
1992	<
1993	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
1994	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
1995	<	final IncFunction r = new IncFunction();
1996	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1997	<
1998	<	f.complete(v1);
1999	<	checkCompletedNormally(h, inc(v1));
2000	<	g.complete(v2);
2001	<
2002	<	checkCompletedNormally(f, v1);
2003	<	checkCompletedNormally(g, v2);
2004	<	checkCompletedNormally(h, inc(v1));
2005	<	}
2006	<	}
2007	<
2008	<	public void testApplyToEither_normalCompletion2() {
2009	<	for (ExecutionMode m : ExecutionMode.values())
2010	<	for (Integer v1 : new Integer[] { 1, null })
2011	<	for (Integer v2 : new Integer[] { 2, null }) {
2012	<
2013	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2014	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2015	<	final IncFunction r = new IncFunction();
2016	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2017	<
2018	<	g.complete(v2);
2019	<	checkCompletedNormally(h, inc(v2));
2020	<	f.complete(v1);
2021	<
2022	<	checkCompletedNormally(f, v1);
2023	<	checkCompletedNormally(g, v2);
2024	<	checkCompletedNormally(h, inc(v2));
2025	<	}
2026	<	}
2027	<	public void testApplyToEither_normalCompletion3() {
2092	>	public void testApplyToEither_normalCompletion() {
2093		for (ExecutionMode m : ExecutionMode.values())
2094		for (Integer v1 : new Integer[] { 1, null })
2095	<	for (Integer v2 : new Integer[] { 2, null }) {
2096	<
2095	>	for (Integer v2 : new Integer[] { 2, null })
2096	>	{
2097		final CompletableFuture<Integer> f = new CompletableFuture<>();
2098		final CompletableFuture<Integer> g = new CompletableFuture<>();
2099	<	final IncFunction r = new IncFunction();
2099	>	final IncFunction[] rs = new IncFunction[6];
2100	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2101
2102	<	f.complete(v1);
2103	<	g.complete(v2);
2104	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2102	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2103	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2104	>	checkIncomplete(h0);
2105	>	checkIncomplete(h1);
2106	>	rs[0].assertNotInvoked();
2107	>	rs[1].assertNotInvoked();
2108	>	f.complete(v1);
2109	>	checkCompletedNormally(h0, inc(v1));
2110	>	checkCompletedNormally(h1, inc(v1));
2111	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2112	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2113	>	checkCompletedNormally(h2, inc(v1));
2114	>	checkCompletedNormally(h3, inc(v1));
2115	>	g.complete(v2);
2116	>
2117	>	// unspecified behavior - both source completions available
2118	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2119	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2120	>	rs[4].assertValue(h4.join());
2121	>	rs[5].assertValue(h5.join());
2122	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2123	>	Objects.equals(inc(v2), h4.join()));
2124	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2125	>	Objects.equals(inc(v2), h5.join()));
2126
2127		checkCompletedNormally(f, v1);
2128		checkCompletedNormally(g, v2);
2129	<
2130	<	// unspecified behavior
2131	<	assertTrue(Objects.equals(h.join(), inc(v1)) ||
2132	<	Objects.equals(h.join(), inc(v2)));
2133	<	assertEquals(1, r.invocationCount);
2134	<	}
2048	<	}
2129	>	checkCompletedNormally(h0, inc(v1));
2130	>	checkCompletedNormally(h1, inc(v1));
2131	>	checkCompletedNormally(h2, inc(v1));
2132	>	checkCompletedNormally(h3, inc(v1));
2133	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2134	>	}}
2135
2136		/**
2137		* applyToEither result completes exceptionally after exceptional
2138		* completion of either source
2139		*/
2140	<	public void testApplyToEither_exceptionalCompletion1() {
2140	>	public void testApplyToEither_exceptionalCompletion() {
2141		for (ExecutionMode m : ExecutionMode.values())
2142	<	for (Integer v1 : new Integer[] { 1, null }) {
2143	<
2142	>	for (Integer v1 : new Integer[] { 1, null })
2143	>	{
2144		final CompletableFuture<Integer> f = new CompletableFuture<>();
2145		final CompletableFuture<Integer> g = new CompletableFuture<>();
2060	–	final IncFunction r = new IncFunction();
2061	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2146		final CFException ex = new CFException();
2147	+	final IncFunction[] rs = new IncFunction[6];
2148	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2149
2150	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2151	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2152	+	checkIncomplete(h0);
2153	+	checkIncomplete(h1);
2154	+	rs[0].assertNotInvoked();
2155	+	rs[1].assertNotInvoked();
2156		f.completeExceptionally(ex);
2157	<	checkCompletedWithWrappedCFException(h, ex);
2157	>	checkCompletedWithWrappedException(h0, ex);
2158	>	checkCompletedWithWrappedException(h1, ex);
2159	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2160	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2161	>	checkCompletedWithWrappedException(h2, ex);
2162	>	checkCompletedWithWrappedException(h3, ex);
2163		g.complete(v1);
2164
2165	<	assertEquals(0, r.invocationCount);
2166	<	checkCompletedNormally(g, v1);
2167	<	checkCompletedWithWrappedCFException(f, ex);
2168	<	checkCompletedWithWrappedCFException(h, ex);
2169	<	}
2170	<	}
2171	<
2172	<	public void testApplyToEither_exceptionalCompletion2() {
2173	<	for (ExecutionMode m : ExecutionMode.values())
2077	<	for (Integer v1 : new Integer[] { 1, null }) {
2078	<
2079	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2080	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2081	<	final IncFunction r = new IncFunction();
2082	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2083	<	final CFException ex = new CFException();
2084	<
2085	<	g.completeExceptionally(ex);
2086	<	checkCompletedWithWrappedCFException(h, ex);
2087	<	f.complete(v1);
2088	<
2089	<	assertEquals(0, r.invocationCount);
2090	<	checkCompletedNormally(f, v1);
2091	<	checkCompletedWithWrappedCFException(g, ex);
2092	<	checkCompletedWithWrappedCFException(h, ex);
2165	>	// unspecified behavior - both source completions available
2166	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2167	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2168	>	try {
2169	>	assertEquals(inc(v1), h4.join());
2170	>	rs[4].assertValue(inc(v1));
2171	>	} catch (CompletionException ok) {
2172	>	checkCompletedWithWrappedException(h4, ex);
2173	>	rs[4].assertNotInvoked();
2174		}
2094	–	}
2095	–
2096	–	public void testApplyToEither_exceptionalCompletion3() {
2097	–	for (ExecutionMode m : ExecutionMode.values())
2098	–	for (Integer v1 : new Integer[] { 1, null }) {
2099	–
2100	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2101	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2102	–	final IncFunction r = new IncFunction();
2103	–	final CFException ex = new CFException();
2104	–
2105	–	g.completeExceptionally(ex);
2106	–	f.complete(v1);
2107	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2108	–
2109	–	// unspecified behavior
2110	–	Integer v;
2175		try {
2176	<	assertEquals(inc(v1), h.join());
2177	<	assertEquals(1, r.invocationCount);
2176	>	assertEquals(inc(v1), h5.join());
2177	>	rs[5].assertValue(inc(v1));
2178		} catch (CompletionException ok) {
2179	<	checkCompletedWithWrappedCFException(h, ex);
2180	<	assertEquals(0, r.invocationCount);
2179	>	checkCompletedWithWrappedException(h5, ex);
2180	>	rs[5].assertNotInvoked();
2181		}
2182
2183	<	checkCompletedWithWrappedCFException(g, ex);
2184	<	checkCompletedNormally(f, v1);
2185	<	}
2186	<	}
2183	>	checkCompletedExceptionally(f, ex);
2184	>	checkCompletedNormally(g, v1);
2185	>	checkCompletedWithWrappedException(h0, ex);
2186	>	checkCompletedWithWrappedException(h1, ex);
2187	>	checkCompletedWithWrappedException(h2, ex);
2188	>	checkCompletedWithWrappedException(h3, ex);
2189	>	checkCompletedWithWrappedException(h4, ex);
2190	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2191	>	}}
2192
2193	<	public void testApplyToEither_exceptionalCompletion4() {
2193	>	public void testApplyToEither_exceptionalCompletion2() {
2194		for (ExecutionMode m : ExecutionMode.values())
2195	<	for (Integer v1 : new Integer[] { 1, null }) {
2196	<
2195	>	for (boolean fFirst : new boolean[] { true, false })
2196	>	for (Integer v1 : new Integer[] { 1, null })
2197	>	{
2198		final CompletableFuture<Integer> f = new CompletableFuture<>();
2199		final CompletableFuture<Integer> g = new CompletableFuture<>();
2130	–	final IncFunction r = new IncFunction();
2200		final CFException ex = new CFException();
2201	+	final IncFunction[] rs = new IncFunction[6];
2202	+	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2203
2204	<	f.completeExceptionally(ex);
2205	<	g.complete(v1);
2206	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2204	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2205	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2206	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2207	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2208	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2209	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2210
2211	<	// unspecified behavior
2138	<	Integer v;
2211	>	// unspecified behavior - both source completions available
2212		try {
2213	<	assertEquals(inc(v1), h.join());
2214	<	assertEquals(1, r.invocationCount);
2213	>	assertEquals(inc(v1), h0.join());
2214	>	rs[0].assertValue(inc(v1));
2215		} catch (CompletionException ok) {
2216	<	checkCompletedWithWrappedCFException(h, ex);
2217	<	assertEquals(0, r.invocationCount);
2216	>	checkCompletedWithWrappedException(h0, ex);
2217	>	rs[0].assertNotInvoked();
2218		}
2219	<
2220	<	checkCompletedWithWrappedCFException(f, ex);
2221	<	checkCompletedNormally(g, v1);
2219	>	try {
2220	>	assertEquals(inc(v1), h1.join());
2221	>	rs[1].assertValue(inc(v1));
2222	>	} catch (CompletionException ok) {
2223	>	checkCompletedWithWrappedException(h1, ex);
2224	>	rs[1].assertNotInvoked();
2225		}
2226	<	}
2227	<
2228	<	/**
2229	<	* applyToEither result completes exceptionally if action does
2230	<	*/
2231	<	public void testApplyToEither_actionFailed1() {
2232	<	for (ExecutionMode m : ExecutionMode.values())
2233	<	for (Integer v1 : new Integer[] { 1, null })
2234	<	for (Integer v2 : new Integer[] { 2, null }) {
2235	<
2236	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2237	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2238	<	final FailingFunction r = new FailingFunction();
2163	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2164	<
2165	<	f.complete(v1);
2166	<	checkCompletedWithWrappedCFException(h);
2167	<	g.complete(v2);
2168	<	checkCompletedNormally(f, v1);
2169	<	checkCompletedNormally(g, v2);
2226	>	try {
2227	>	assertEquals(inc(v1), h2.join());
2228	>	rs[2].assertValue(inc(v1));
2229	>	} catch (CompletionException ok) {
2230	>	checkCompletedWithWrappedException(h2, ex);
2231	>	rs[2].assertNotInvoked();
2232	>	}
2233	>	try {
2234	>	assertEquals(inc(v1), h3.join());
2235	>	rs[3].assertValue(inc(v1));
2236	>	} catch (CompletionException ok) {
2237	>	checkCompletedWithWrappedException(h3, ex);
2238	>	rs[3].assertNotInvoked();
2239		}
2171	–	}
2172	–
2173	–	public void testApplyToEither_actionFailed2() {
2174	–	for (ExecutionMode m : ExecutionMode.values())
2175	–	for (Integer v1 : new Integer[] { 1, null })
2176	–	for (Integer v2 : new Integer[] { 2, null }) {
2177	–
2178	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2179	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2180	–	final FailingFunction r = new FailingFunction();
2181	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2240
2183	–	g.complete(v2);
2184	–	checkCompletedWithWrappedCFException(h);
2185	–	f.complete(v1);
2241		checkCompletedNormally(f, v1);
2242	<	checkCompletedNormally(g, v2);
2243	<	}
2189	<	}
2242	>	checkCompletedExceptionally(g, ex);
2243	>	}}
2244
2245		/**
2246		* applyToEither result completes exceptionally if either source cancelled
2247		*/
2248	<	public void testApplyToEither_sourceCancelled1() {
2248	>	public void testApplyToEither_sourceCancelled() {
2249		for (ExecutionMode m : ExecutionMode.values())
2250		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2251	<	for (Integer v1 : new Integer[] { 1, null }) {
2252	<
2251	>	for (Integer v1 : new Integer[] { 1, null })
2252	>	{
2253		final CompletableFuture<Integer> f = new CompletableFuture<>();
2254		final CompletableFuture<Integer> g = new CompletableFuture<>();
2255	<	final IncFunction r = new IncFunction();
2256	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2255	>	final IncFunction[] rs = new IncFunction[6];
2256	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2257
2258	<	assertTrue(f.cancel(mayInterruptIfRunning));
2259	<	checkCompletedWithWrappedCancellationException(h);
2260	<	g.complete(v1);
2258	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2259	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2260	>	checkIncomplete(h0);
2261	>	checkIncomplete(h1);
2262	>	rs[0].assertNotInvoked();
2263	>	rs[1].assertNotInvoked();
2264	>	f.cancel(mayInterruptIfRunning);
2265	>	checkCompletedWithWrappedCancellationException(h0);
2266	>	checkCompletedWithWrappedCancellationException(h1);
2267	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2268	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2269	>	checkCompletedWithWrappedCancellationException(h2);
2270	>	checkCompletedWithWrappedCancellationException(h3);
2271	>	g.complete(v1);
2272	>
2273	>	// unspecified behavior - both source completions available
2274	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2275	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2276	>	try {
2277	>	assertEquals(inc(v1), h4.join());
2278	>	rs[4].assertValue(inc(v1));
2279	>	} catch (CompletionException ok) {
2280	>	checkCompletedWithWrappedCancellationException(h4);
2281	>	rs[4].assertNotInvoked();
2282	>	}
2283	>	try {
2284	>	assertEquals(inc(v1), h5.join());
2285	>	rs[5].assertValue(inc(v1));
2286	>	} catch (CompletionException ok) {
2287	>	checkCompletedWithWrappedCancellationException(h5);
2288	>	rs[5].assertNotInvoked();
2289	>	}
2290
2291		checkCancelled(f);
2209	–	assertEquals(0, r.invocationCount);
2292		checkCompletedNormally(g, v1);
2293	<	checkCompletedWithWrappedCancellationException(h);
2294	<	}
2295	<	}
2293	>	checkCompletedWithWrappedCancellationException(h0);
2294	>	checkCompletedWithWrappedCancellationException(h1);
2295	>	checkCompletedWithWrappedCancellationException(h2);
2296	>	checkCompletedWithWrappedCancellationException(h3);
2297	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2298	>	}}
2299
2300		public void testApplyToEither_sourceCancelled2() {
2301		for (ExecutionMode m : ExecutionMode.values())
2302		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2303	<	for (Integer v1 : new Integer[] { 1, null }) {
2304	<
2303	>	for (boolean fFirst : new boolean[] { true, false })
2304	>	for (Integer v1 : new Integer[] { 1, null })
2305	>	{
2306		final CompletableFuture<Integer> f = new CompletableFuture<>();
2307		final CompletableFuture<Integer> g = new CompletableFuture<>();
2308	<	final IncFunction r = new IncFunction();
2309	<	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2308	>	final IncFunction[] rs = new IncFunction[6];
2309	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2310
2311	<	assertTrue(g.cancel(mayInterruptIfRunning));
2312	<	checkCompletedWithWrappedCancellationException(h);
2313	<	f.complete(v1);
2311	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2312	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2313	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2314	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2315	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2316	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2317
2318	<	checkCancelled(g);
2319	<	assertEquals(0, r.invocationCount);
2320	<	checkCompletedNormally(f, v1);
2321	<	checkCompletedWithWrappedCancellationException(h);
2318	>	// unspecified behavior - both source completions available
2319	>	try {
2320	>	assertEquals(inc(v1), h0.join());
2321	>	rs[0].assertValue(inc(v1));
2322	>	} catch (CompletionException ok) {
2323	>	checkCompletedWithWrappedCancellationException(h0);
2324	>	rs[0].assertNotInvoked();
2325		}
2234	–	}
2235	–
2236	–	public void testApplyToEither_sourceCancelled3() {
2237	–	for (ExecutionMode m : ExecutionMode.values())
2238	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2239	–	for (Integer v1 : new Integer[] { 1, null }) {
2240	–
2241	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2242	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2243	–	final IncFunction r = new IncFunction();
2244	–
2245	–	assertTrue(g.cancel(mayInterruptIfRunning));
2246	–	f.complete(v1);
2247	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2248	–
2249	–	// unspecified behavior
2250	–	Integer v;
2326		try {
2327	<	assertEquals(inc(v1), h.join());
2328	<	assertEquals(1, r.invocationCount);
2327	>	assertEquals(inc(v1), h1.join());
2328	>	rs[1].assertValue(inc(v1));
2329		} catch (CompletionException ok) {
2330	<	checkCompletedWithWrappedCancellationException(h);
2331	<	assertEquals(0, r.invocationCount);
2330	>	checkCompletedWithWrappedCancellationException(h1);
2331	>	rs[1].assertNotInvoked();
2332		}
2333	<
2334	<	checkCancelled(g);
2335	<	checkCompletedNormally(f, v1);
2333	>	try {
2334	>	assertEquals(inc(v1), h2.join());
2335	>	rs[2].assertValue(inc(v1));
2336	>	} catch (CompletionException ok) {
2337	>	checkCompletedWithWrappedCancellationException(h2);
2338	>	rs[2].assertNotInvoked();
2339		}
2262	–	}
2263	–
2264	–	public void testApplyToEither_sourceCancelled4() {
2265	–	for (ExecutionMode m : ExecutionMode.values())
2266	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2267	–	for (Integer v1 : new Integer[] { 1, null }) {
2268	–
2269	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2270	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2271	–	final IncFunction r = new IncFunction();
2272	–
2273	–	assertTrue(f.cancel(mayInterruptIfRunning));
2274	–	g.complete(v1);
2275	–	final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2276	–
2277	–	// unspecified behavior
2278	–	Integer v;
2340		try {
2341	<	assertEquals(inc(v1), h.join());
2342	<	assertEquals(1, r.invocationCount);
2341	>	assertEquals(inc(v1), h3.join());
2342	>	rs[3].assertValue(inc(v1));
2343		} catch (CompletionException ok) {
2344	<	checkCompletedWithWrappedCancellationException(h);
2345	<	assertEquals(0, r.invocationCount);
2344	>	checkCompletedWithWrappedCancellationException(h3);
2345	>	rs[3].assertNotInvoked();
2346		}
2347
2348	<	checkCancelled(f);
2349	<	checkCompletedNormally(g, v1);
2350	<	}
2290	<	}
2348	>	checkCompletedNormally(f, v1);
2349	>	checkCancelled(g);
2350	>	}}
2351
2352		/**
2353	<	* acceptEither result completes normally after normal completion
2294	<	* of either source
2353	>	* applyToEither result completes exceptionally if action does
2354		*/
2355	<	public void testAcceptEither_normalCompletion1() {
2355	>	public void testApplyToEither_actionFailed() {
2356		for (ExecutionMode m : ExecutionMode.values())
2357		for (Integer v1 : new Integer[] { 1, null })
2358	<	for (Integer v2 : new Integer[] { 2, null }) {
2359	<
2358	>	for (Integer v2 : new Integer[] { 2, null })
2359	>	{
2360		final CompletableFuture<Integer> f = new CompletableFuture<>();
2361		final CompletableFuture<Integer> g = new CompletableFuture<>();
2362	<	final IncAction r = new IncAction();
2363	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2362	>	final FailingFunction[] rs = new FailingFunction[6];
2363	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2364
2365	+	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2366	+	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2367		f.complete(v1);
2368	<	checkCompletedNormally(h, null);
2369	<	assertEquals(inc(v1), r.value);
2370	<	g.complete(v2);
2371	<
2372	<	checkCompletedNormally(f, v1);
2373	<	checkCompletedNormally(g, v2);
2374	<	checkCompletedNormally(h, null);
2314	<	}
2315	<	}
2316	<
2317	<	public void testAcceptEither_normalCompletion2() {
2318	<	for (ExecutionMode m : ExecutionMode.values())
2319	<	for (Integer v1 : new Integer[] { 1, null })
2320	<	for (Integer v2 : new Integer[] { 2, null }) {
2321	<
2322	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2323	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2324	<	final IncAction r = new IncAction();
2325	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2368	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2369	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2370	>	checkCompletedWithWrappedCFException(h0);
2371	>	checkCompletedWithWrappedCFException(h1);
2372	>	checkCompletedWithWrappedCFException(h2);
2373	>	checkCompletedWithWrappedCFException(h3);
2374	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2375
2376		g.complete(v2);
2377	<	checkCompletedNormally(h, null);
2378	<	assertEquals(inc(v2), r.value);
2379	<	f.complete(v1);
2377	>
2378	>	// unspecified behavior - both source completions available
2379	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2380	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2381	>
2382	>	checkCompletedWithWrappedCFException(h4);
2383	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2384	>	Objects.equals(v2, rs[4].value));
2385	>	checkCompletedWithWrappedCFException(h5);
2386	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2387	>	Objects.equals(v2, rs[5].value));
2388
2389		checkCompletedNormally(f, v1);
2390		checkCompletedNormally(g, v2);
2391	<	checkCompletedNormally(h, null);
2392	<	}
2393	<	}
2394	<	public void testAcceptEither_normalCompletion3() {
2391	>	}}
2392	>
2393	>	/**
2394	>	* acceptEither result completes normally after normal completion
2395	>	* of either source
2396	>	*/
2397	>	public void testAcceptEither_normalCompletion() {
2398		for (ExecutionMode m : ExecutionMode.values())
2399		for (Integer v1 : new Integer[] { 1, null })
2400	<	for (Integer v2 : new Integer[] { 2, null }) {
2401	<
2400	>	for (Integer v2 : new Integer[] { 2, null })
2401	>	{
2402		final CompletableFuture<Integer> f = new CompletableFuture<>();
2403		final CompletableFuture<Integer> g = new CompletableFuture<>();
2404	<	final IncAction r = new IncAction();
2404	>	final NoopConsumer[] rs = new NoopConsumer[6];
2405	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2406
2407	<	f.complete(v1);
2408	<	g.complete(v2);
2409	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2407	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2408	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2409	>	checkIncomplete(h0);
2410	>	checkIncomplete(h1);
2411	>	rs[0].assertNotInvoked();
2412	>	rs[1].assertNotInvoked();
2413	>	f.complete(v1);
2414	>	checkCompletedNormally(h0, null);
2415	>	checkCompletedNormally(h1, null);
2416	>	rs[0].assertValue(v1);
2417	>	rs[1].assertValue(v1);
2418	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2419	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2420	>	checkCompletedNormally(h2, null);
2421	>	checkCompletedNormally(h3, null);
2422	>	rs[2].assertValue(v1);
2423	>	rs[3].assertValue(v1);
2424	>	g.complete(v2);
2425	>
2426	>	// unspecified behavior - both source completions available
2427	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2428	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2429	>	checkCompletedNormally(h4, null);
2430	>	checkCompletedNormally(h5, null);
2431	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2432	>	Objects.equals(v2, rs[4].value));
2433	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2434	>	Objects.equals(v2, rs[5].value));
2435
2350	–	checkCompletedNormally(h, null);
2436		checkCompletedNormally(f, v1);
2437		checkCompletedNormally(g, v2);
2438	<
2439	<	// unspecified behavior
2440	<	assertTrue(Objects.equals(r.value, inc(v1)) ||
2441	<	Objects.equals(r.value, inc(v2)));
2442	<	}
2443	<	}
2438	>	checkCompletedNormally(h0, null);
2439	>	checkCompletedNormally(h1, null);
2440	>	checkCompletedNormally(h2, null);
2441	>	checkCompletedNormally(h3, null);
2442	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2443	>	}}
2444
2445		/**
2446		* acceptEither result completes exceptionally after exceptional
2447		* completion of either source
2448		*/
2449	<	public void testAcceptEither_exceptionalCompletion1() {
2449	>	public void testAcceptEither_exceptionalCompletion() {
2450		for (ExecutionMode m : ExecutionMode.values())
2451	<	for (Integer v1 : new Integer[] { 1, null }) {
2452	<
2451	>	for (Integer v1 : new Integer[] { 1, null })
2452	>	{
2453		final CompletableFuture<Integer> f = new CompletableFuture<>();
2454		final CompletableFuture<Integer> g = new CompletableFuture<>();
2370	–	final IncAction r = new IncAction();
2371	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2455		final CFException ex = new CFException();
2456	+	final NoopConsumer[] rs = new NoopConsumer[6];
2457	+	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2458
2459	+	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2460	+	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2461	+	checkIncomplete(h0);
2462	+	checkIncomplete(h1);
2463	+	rs[0].assertNotInvoked();
2464	+	rs[1].assertNotInvoked();
2465		f.completeExceptionally(ex);
2466	<	checkCompletedWithWrappedCFException(h, ex);
2467	<	g.complete(v1);
2468	<
2469	<	assertEquals(0, r.invocationCount);
2470	<	checkCompletedNormally(g, v1);
2471	<	checkCompletedWithWrappedCFException(f, ex);
2381	<	checkCompletedWithWrappedCFException(h, ex);
2382	<	}
2383	<	}
2466	>	checkCompletedWithWrappedException(h0, ex);
2467	>	checkCompletedWithWrappedException(h1, ex);
2468	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2469	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2470	>	checkCompletedWithWrappedException(h2, ex);
2471	>	checkCompletedWithWrappedException(h3, ex);
2472
2473	<	public void testAcceptEither_exceptionalCompletion2() {
2386	<	for (ExecutionMode m : ExecutionMode.values())
2387	<	for (Integer v1 : new Integer[] { 1, null }) {
2388	<
2389	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2390	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2391	<	final IncAction r = new IncAction();
2392	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2393	<	final CFException ex = new CFException();
2394	<
2395	<	g.completeExceptionally(ex);
2396	<	checkCompletedWithWrappedCFException(h, ex);
2397	<	f.complete(v1);
2473	>	g.complete(v1);
2474
2475	<	assertEquals(0, r.invocationCount);
2476	<	checkCompletedNormally(f, v1);
2477	<	checkCompletedWithWrappedCFException(g, ex);
2478	<	checkCompletedWithWrappedCFException(h, ex);
2475	>	// unspecified behavior - both source completions available
2476	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2477	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2478	>	try {
2479	>	assertNull(h4.join());
2480	>	rs[4].assertValue(v1);
2481	>	} catch (CompletionException ok) {
2482	>	checkCompletedWithWrappedException(h4, ex);
2483	>	rs[4].assertNotInvoked();
2484		}
2404	–	}
2405	–
2406	–	public void testAcceptEither_exceptionalCompletion3() {
2407	–	for (ExecutionMode m : ExecutionMode.values())
2408	–	for (Integer v1 : new Integer[] { 1, null }) {
2409	–
2410	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2411	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2412	–	final IncAction r = new IncAction();
2413	–	final CFException ex = new CFException();
2414	–
2415	–	g.completeExceptionally(ex);
2416	–	f.complete(v1);
2417	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2418	–
2419	–	// unspecified behavior
2420	–	Integer v;
2485		try {
2486	<	assertNull(h.join());
2487	<	assertEquals(1, r.invocationCount);
2424	<	assertEquals(inc(v1), r.value);
2486	>	assertNull(h5.join());
2487	>	rs[5].assertValue(v1);
2488		} catch (CompletionException ok) {
2489	<	checkCompletedWithWrappedCFException(h, ex);
2490	<	assertEquals(0, r.invocationCount);
2489	>	checkCompletedWithWrappedException(h5, ex);
2490	>	rs[5].assertNotInvoked();
2491		}
2492
2493	<	checkCompletedWithWrappedCFException(g, ex);
2494	<	checkCompletedNormally(f, v1);
2495	<	}
2496	<	}
2493	>	checkCompletedExceptionally(f, ex);
2494	>	checkCompletedNormally(g, v1);
2495	>	checkCompletedWithWrappedException(h0, ex);
2496	>	checkCompletedWithWrappedException(h1, ex);
2497	>	checkCompletedWithWrappedException(h2, ex);
2498	>	checkCompletedWithWrappedException(h3, ex);
2499	>	checkCompletedWithWrappedException(h4, ex);
2500	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2501	>	}}
2502
2503	<	public void testAcceptEither_exceptionalCompletion4() {
2503	>	public void testAcceptEither_exceptionalCompletion2() {
2504		for (ExecutionMode m : ExecutionMode.values())
2505	<	for (Integer v1 : new Integer[] { 1, null }) {
2506	<
2505	>	for (boolean fFirst : new boolean[] { true, false })
2506	>	for (Integer v1 : new Integer[] { 1, null })
2507	>	{
2508		final CompletableFuture<Integer> f = new CompletableFuture<>();
2509		final CompletableFuture<Integer> g = new CompletableFuture<>();
2441	–	final IncAction r = new IncAction();
2510		final CFException ex = new CFException();
2511	+	final NoopConsumer[] rs = new NoopConsumer[6];
2512	+	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2513
2514	<	f.completeExceptionally(ex);
2515	<	g.complete(v1);
2516	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2514	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2515	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2516	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2517	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2518	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2519	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2520
2521	<	// unspecified behavior
2449	<	Integer v;
2521	>	// unspecified behavior - both source completions available
2522		try {
2523	<	assertNull(h.join());
2524	<	assertEquals(1, r.invocationCount);
2453	<	assertEquals(inc(v1), r.value);
2523	>	assertEquals(null, h0.join());
2524	>	rs[0].assertValue(v1);
2525		} catch (CompletionException ok) {
2526	<	checkCompletedWithWrappedCFException(h, ex);
2527	<	assertEquals(0, r.invocationCount);
2526	>	checkCompletedWithWrappedException(h0, ex);
2527	>	rs[0].assertNotInvoked();
2528		}
2529	<
2530	<	checkCompletedWithWrappedCFException(f, ex);
2531	<	checkCompletedNormally(g, v1);
2529	>	try {
2530	>	assertEquals(null, h1.join());
2531	>	rs[1].assertValue(v1);
2532	>	} catch (CompletionException ok) {
2533	>	checkCompletedWithWrappedException(h1, ex);
2534	>	rs[1].assertNotInvoked();
2535		}
2536	<	}
2537	<
2538	<	/**
2539	<	* acceptEither result completes exceptionally if action does
2540	<	*/
2541	<	public void testAcceptEither_actionFailed1() {
2542	<	for (ExecutionMode m : ExecutionMode.values())
2543	<	for (Integer v1 : new Integer[] { 1, null })
2544	<	for (Integer v2 : new Integer[] { 2, null }) {
2545	<
2546	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2547	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2548	<	final FailingConsumer r = new FailingConsumer();
2475	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2476	<
2477	<	f.complete(v1);
2478	<	checkCompletedWithWrappedCFException(h);
2479	<	g.complete(v2);
2480	<	checkCompletedNormally(f, v1);
2481	<	checkCompletedNormally(g, v2);
2536	>	try {
2537	>	assertEquals(null, h2.join());
2538	>	rs[2].assertValue(v1);
2539	>	} catch (CompletionException ok) {
2540	>	checkCompletedWithWrappedException(h2, ex);
2541	>	rs[2].assertNotInvoked();
2542	>	}
2543	>	try {
2544	>	assertEquals(null, h3.join());
2545	>	rs[3].assertValue(v1);
2546	>	} catch (CompletionException ok) {
2547	>	checkCompletedWithWrappedException(h3, ex);
2548	>	rs[3].assertNotInvoked();
2549		}
2483	–	}
2484	–
2485	–	public void testAcceptEither_actionFailed2() {
2486	–	for (ExecutionMode m : ExecutionMode.values())
2487	–	for (Integer v1 : new Integer[] { 1, null })
2488	–	for (Integer v2 : new Integer[] { 2, null }) {
2489	–
2490	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2491	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2492	–	final FailingConsumer r = new FailingConsumer();
2493	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2550
2495	–	g.complete(v2);
2496	–	checkCompletedWithWrappedCFException(h);
2497	–	f.complete(v1);
2551		checkCompletedNormally(f, v1);
2552	<	checkCompletedNormally(g, v2);
2553	<	}
2501	<	}
2552	>	checkCompletedExceptionally(g, ex);
2553	>	}}
2554
2555		/**
2556		* acceptEither result completes exceptionally if either source cancelled
2557		*/
2558	<	public void testAcceptEither_sourceCancelled1() {
2558	>	public void testAcceptEither_sourceCancelled() {
2559		for (ExecutionMode m : ExecutionMode.values())
2560		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2561	<	for (Integer v1 : new Integer[] { 1, null }) {
2562	<
2511	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2512	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2513	<	final IncAction r = new IncAction();
2514	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2515	<
2516	<	assertTrue(f.cancel(mayInterruptIfRunning));
2517	<	checkCompletedWithWrappedCancellationException(h);
2518	<	g.complete(v1);
2519	<
2520	<	checkCancelled(f);
2521	<	assertEquals(0, r.invocationCount);
2522	<	checkCompletedNormally(g, v1);
2523	<	checkCompletedWithWrappedCancellationException(h);
2524	<	}
2525	<	}
2526	<
2527	<	public void testAcceptEither_sourceCancelled2() {
2528	<	for (ExecutionMode m : ExecutionMode.values())
2529	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2530	<	for (Integer v1 : new Integer[] { 1, null }) {
2531	<
2561	>	for (Integer v1 : new Integer[] { 1, null })
2562	>	{
2563		final CompletableFuture<Integer> f = new CompletableFuture<>();
2564		final CompletableFuture<Integer> g = new CompletableFuture<>();
2565	<	final IncAction r = new IncAction();
2566	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2536	<
2537	<	assertTrue(g.cancel(mayInterruptIfRunning));
2538	<	checkCompletedWithWrappedCancellationException(h);
2539	<	f.complete(v1);
2540	<
2541	<	checkCancelled(g);
2542	<	assertEquals(0, r.invocationCount);
2543	<	checkCompletedNormally(f, v1);
2544	<	checkCompletedWithWrappedCancellationException(h);
2545	<	}
2546	<	}
2565	>	final NoopConsumer[] rs = new NoopConsumer[6];
2566	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2567
2568	<	public void testAcceptEither_sourceCancelled3() {
2569	<	for (ExecutionMode m : ExecutionMode.values())
2570	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2571	<	for (Integer v1 : new Integer[] { 1, null }) {
2568	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2569	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2570	>	checkIncomplete(h0);
2571	>	checkIncomplete(h1);
2572	>	rs[0].assertNotInvoked();
2573	>	rs[1].assertNotInvoked();
2574	>	f.cancel(mayInterruptIfRunning);
2575	>	checkCompletedWithWrappedCancellationException(h0);
2576	>	checkCompletedWithWrappedCancellationException(h1);
2577	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2578	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2579	>	checkCompletedWithWrappedCancellationException(h2);
2580	>	checkCompletedWithWrappedCancellationException(h3);
2581
2582	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2554	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2555	<	final IncAction r = new IncAction();
2556	<
2557	<	assertTrue(g.cancel(mayInterruptIfRunning));
2558	<	f.complete(v1);
2559	<	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2582	>	g.complete(v1);
2583
2584	<	// unspecified behavior
2585	<	Integer v;
2584	>	// unspecified behavior - both source completions available
2585	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2586	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2587		try {
2588	<	assertNull(h.join());
2589	<	assertEquals(1, r.invocationCount);
2566	<	assertEquals(inc(v1), r.value);
2588	>	assertNull(h4.join());
2589	>	rs[4].assertValue(v1);
2590		} catch (CompletionException ok) {
2591	<	checkCompletedWithWrappedCancellationException(h);
2592	<	assertEquals(0, r.invocationCount);
2591	>	checkCompletedWithWrappedCancellationException(h4);
2592	>	rs[4].assertNotInvoked();
2593		}
2571	–
2572	–	checkCancelled(g);
2573	–	checkCompletedNormally(f, v1);
2574	–	}
2575	–	}
2576	–
2577	–	public void testAcceptEither_sourceCancelled4() {
2578	–	for (ExecutionMode m : ExecutionMode.values())
2579	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2580	–	for (Integer v1 : new Integer[] { 1, null }) {
2581	–
2582	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2583	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2584	–	final IncAction r = new IncAction();
2585	–
2586	–	assertTrue(f.cancel(mayInterruptIfRunning));
2587	–	g.complete(v1);
2588	–	final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2589	–
2590	–	// unspecified behavior
2591	–	Integer v;
2594		try {
2595	<	assertNull(h.join());
2596	<	assertEquals(1, r.invocationCount);
2595	<	assertEquals(inc(v1), r.value);
2595	>	assertNull(h5.join());
2596	>	rs[5].assertValue(v1);
2597		} catch (CompletionException ok) {
2598	<	checkCompletedWithWrappedCancellationException(h);
2599	<	assertEquals(0, r.invocationCount);
2598	>	checkCompletedWithWrappedCancellationException(h5);
2599	>	rs[5].assertNotInvoked();
2600		}
2601
2602		checkCancelled(f);
2603		checkCompletedNormally(g, v1);
2604	<	}
2605	<	}
2604	>	checkCompletedWithWrappedCancellationException(h0);
2605	>	checkCompletedWithWrappedCancellationException(h1);
2606	>	checkCompletedWithWrappedCancellationException(h2);
2607	>	checkCompletedWithWrappedCancellationException(h3);
2608	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2609	>	}}
2610
2611		/**
2612	<	* runAfterEither result completes normally after normal completion
2608	<	* of either source
2612	>	* acceptEither result completes exceptionally if action does
2613		*/
2614	<	public void testRunAfterEither_normalCompletion1() {
2614	>	public void testAcceptEither_actionFailed() {
2615		for (ExecutionMode m : ExecutionMode.values())
2616		for (Integer v1 : new Integer[] { 1, null })
2617	<	for (Integer v2 : new Integer[] { 2, null }) {
2618	<
2617	>	for (Integer v2 : new Integer[] { 2, null })
2618	>	{
2619		final CompletableFuture<Integer> f = new CompletableFuture<>();
2620		final CompletableFuture<Integer> g = new CompletableFuture<>();
2621	<	final Noop r = new Noop();
2622	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2621	>	final FailingConsumer[] rs = new FailingConsumer[6];
2622	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2623
2624	+	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2625	+	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2626		f.complete(v1);
2627	<	checkCompletedNormally(h, null);
2628	<	assertEquals(1, r.invocationCount);
2627	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2628	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2629	>	checkCompletedWithWrappedCFException(h0);
2630	>	checkCompletedWithWrappedCFException(h1);
2631	>	checkCompletedWithWrappedCFException(h2);
2632	>	checkCompletedWithWrappedCFException(h3);
2633	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2634	>
2635		g.complete(v2);
2636
2637	+	// unspecified behavior - both source completions available
2638	+	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2639	+	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2640	+
2641	+	checkCompletedWithWrappedCFException(h4);
2642	+	assertTrue(Objects.equals(v1, rs[4].value) ||
2643	+	Objects.equals(v2, rs[4].value));
2644	+	checkCompletedWithWrappedCFException(h5);
2645	+	assertTrue(Objects.equals(v1, rs[5].value) ||
2646	+	Objects.equals(v2, rs[5].value));
2647	+
2648		checkCompletedNormally(f, v1);
2649		checkCompletedNormally(g, v2);
2650	<	checkCompletedNormally(h, null);
2628	<	assertEquals(1, r.invocationCount);
2629	<	}
2630	<	}
2650	>	}}
2651
2652	<	public void testRunAfterEither_normalCompletion2() {
2652	>	/**
2653	>	* runAfterEither result completes normally after normal completion
2654	>	* of either source
2655	>	*/
2656	>	public void testRunAfterEither_normalCompletion() {
2657		for (ExecutionMode m : ExecutionMode.values())
2658		for (Integer v1 : new Integer[] { 1, null })
2659	<	for (Integer v2 : new Integer[] { 2, null }) {
2660	<
2659	>	for (Integer v2 : new Integer[] { 2, null })
2660	>	{
2661		final CompletableFuture<Integer> f = new CompletableFuture<>();
2662		final CompletableFuture<Integer> g = new CompletableFuture<>();
2663	<	final Noop r = new Noop();
2664	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2641	<
2642	<	g.complete(v2);
2643	<	checkCompletedNormally(h, null);
2644	<	assertEquals(1, r.invocationCount);
2645	<	f.complete(v1);
2646	<
2647	<	checkCompletedNormally(f, v1);
2648	<	checkCompletedNormally(g, v2);
2649	<	checkCompletedNormally(h, null);
2650	<	assertEquals(1, r.invocationCount);
2651	<	}
2652	<	}
2653	<	public void testRunAfterEither_normalCompletion3() {
2654	<	for (ExecutionMode m : ExecutionMode.values())
2655	<	for (Integer v1 : new Integer[] { 1, null })
2656	<	for (Integer v2 : new Integer[] { 2, null }) {
2663	>	final Noop[] rs = new Noop[6];
2664	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2665
2666	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2667	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2668	<	final Noop r = new Noop();
2666	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2667	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2668	>	checkIncomplete(h0);
2669	>	checkIncomplete(h1);
2670	>	rs[0].assertNotInvoked();
2671	>	rs[1].assertNotInvoked();
2672	>	f.complete(v1);
2673	>	checkCompletedNormally(h0, null);
2674	>	checkCompletedNormally(h1, null);
2675	>	rs[0].assertInvoked();
2676	>	rs[1].assertInvoked();
2677	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2678	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2679	>	checkCompletedNormally(h2, null);
2680	>	checkCompletedNormally(h3, null);
2681	>	rs[2].assertInvoked();
2682	>	rs[3].assertInvoked();
2683
2662	–	f.complete(v1);
2684		g.complete(v2);
2664	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2685
2686	<	checkCompletedNormally(h, null);
2686	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2687	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2688	>
2689		checkCompletedNormally(f, v1);
2690		checkCompletedNormally(g, v2);
2691	<	assertEquals(1, r.invocationCount);
2692	<	}
2693	<	}
2691	>	checkCompletedNormally(h0, null);
2692	>	checkCompletedNormally(h1, null);
2693	>	checkCompletedNormally(h2, null);
2694	>	checkCompletedNormally(h3, null);
2695	>	checkCompletedNormally(h4, null);
2696	>	checkCompletedNormally(h5, null);
2697	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2698	>	}}
2699
2700		/**
2701		* runAfterEither result completes exceptionally after exceptional
2702		* completion of either source
2703		*/
2704	<	public void testRunAfterEither_exceptionalCompletion1() {
2704	>	public void testRunAfterEither_exceptionalCompletion() {
2705		for (ExecutionMode m : ExecutionMode.values())
2706	<	for (Integer v1 : new Integer[] { 1, null }) {
2707	<
2706	>	for (Integer v1 : new Integer[] { 1, null })
2707	>	{
2708		final CompletableFuture<Integer> f = new CompletableFuture<>();
2709		final CompletableFuture<Integer> g = new CompletableFuture<>();
2683	–	final Noop r = new Noop();
2684	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2710		final CFException ex = new CFException();
2711	+	final Noop[] rs = new Noop[6];
2712	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2713
2714	<	f.completeExceptionally(ex);
2715	<	checkCompletedWithWrappedCFException(h, ex);
2716	<	g.complete(v1);
2714	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2715	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2716	>	checkIncomplete(h0);
2717	>	checkIncomplete(h1);
2718	>	rs[0].assertNotInvoked();
2719	>	rs[1].assertNotInvoked();
2720	>	assertTrue(f.completeExceptionally(ex));
2721	>	checkCompletedWithWrappedException(h0, ex);
2722	>	checkCompletedWithWrappedException(h1, ex);
2723	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2724	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2725	>	checkCompletedWithWrappedException(h2, ex);
2726	>	checkCompletedWithWrappedException(h3, ex);
2727	>
2728	>	assertTrue(g.complete(v1));
2729	>
2730	>	// unspecified behavior - both source completions available
2731	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2732	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2733	>	try {
2734	>	assertNull(h4.join());
2735	>	rs[4].assertInvoked();
2736	>	} catch (CompletionException ok) {
2737	>	checkCompletedWithWrappedException(h4, ex);
2738	>	rs[4].assertNotInvoked();
2739	>	}
2740	>	try {
2741	>	assertNull(h5.join());
2742	>	rs[5].assertInvoked();
2743	>	} catch (CompletionException ok) {
2744	>	checkCompletedWithWrappedException(h5, ex);
2745	>	rs[5].assertNotInvoked();
2746	>	}
2747
2748	<	assertEquals(0, r.invocationCount);
2748	>	checkCompletedExceptionally(f, ex);
2749		checkCompletedNormally(g, v1);
2750	<	checkCompletedWithWrappedCFException(f, ex);
2751	<	checkCompletedWithWrappedCFException(h, ex);
2752	<	}
2753	<	}
2750	>	checkCompletedWithWrappedException(h0, ex);
2751	>	checkCompletedWithWrappedException(h1, ex);
2752	>	checkCompletedWithWrappedException(h2, ex);
2753	>	checkCompletedWithWrappedException(h3, ex);
2754	>	checkCompletedWithWrappedException(h4, ex);
2755	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2756	>	}}
2757
2758		public void testRunAfterEither_exceptionalCompletion2() {
2759		for (ExecutionMode m : ExecutionMode.values())
2760	<	for (Integer v1 : new Integer[] { 1, null }) {
2761	<
2762	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2703	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2704	<	final Noop r = new Noop();
2705	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2706	<	final CFException ex = new CFException();
2707	<
2708	<	g.completeExceptionally(ex);
2709	<	checkCompletedWithWrappedCFException(h, ex);
2710	<	f.complete(v1);
2711	<
2712	<	assertEquals(0, r.invocationCount);
2713	<	checkCompletedNormally(f, v1);
2714	<	checkCompletedWithWrappedCFException(g, ex);
2715	<	checkCompletedWithWrappedCFException(h, ex);
2716	<	}
2717	<	}
2718	<
2719	<	public void testRunAfterEither_exceptionalCompletion3() {
2720	<	for (ExecutionMode m : ExecutionMode.values())
2721	<	for (Integer v1 : new Integer[] { 1, null }) {
2722	<
2760	>	for (boolean fFirst : new boolean[] { true, false })
2761	>	for (Integer v1 : new Integer[] { 1, null })
2762	>	{
2763		final CompletableFuture<Integer> f = new CompletableFuture<>();
2764		final CompletableFuture<Integer> g = new CompletableFuture<>();
2725	–	final Noop r = new Noop();
2765		final CFException ex = new CFException();
2766	+	final Noop[] rs = new Noop[6];
2767	+	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2768
2769	<	g.completeExceptionally(ex);
2770	<	f.complete(v1);
2771	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2769	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2770	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2771	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2772	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2773	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2774	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2775
2776	<	// unspecified behavior
2733	<	Integer v;
2776	>	// unspecified behavior - both source completions available
2777		try {
2778	<	assertNull(h.join());
2779	<	assertEquals(1, r.invocationCount);
2778	>	assertEquals(null, h0.join());
2779	>	rs[0].assertInvoked();
2780		} catch (CompletionException ok) {
2781	<	checkCompletedWithWrappedCFException(h, ex);
2782	<	assertEquals(0, r.invocationCount);
2781	>	checkCompletedWithWrappedException(h0, ex);
2782	>	rs[0].assertNotInvoked();
2783		}
2741	–
2742	–	checkCompletedWithWrappedCFException(g, ex);
2743	–	checkCompletedNormally(f, v1);
2744	–	}
2745	–	}
2746	–
2747	–	public void testRunAfterEither_exceptionalCompletion4() {
2748	–	for (ExecutionMode m : ExecutionMode.values())
2749	–	for (Integer v1 : new Integer[] { 1, null }) {
2750	–
2751	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2752	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2753	–	final Noop r = new Noop();
2754	–	final CFException ex = new CFException();
2755	–
2756	–	f.completeExceptionally(ex);
2757	–	g.complete(v1);
2758	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2759	–
2760	–	// unspecified behavior
2761	–	Integer v;
2784		try {
2785	<	assertNull(h.join());
2786	<	assertEquals(1, r.invocationCount);
2785	>	assertEquals(null, h1.join());
2786	>	rs[1].assertInvoked();
2787		} catch (CompletionException ok) {
2788	<	checkCompletedWithWrappedCFException(h, ex);
2789	<	assertEquals(0, r.invocationCount);
2788	>	checkCompletedWithWrappedException(h1, ex);
2789	>	rs[1].assertNotInvoked();
2790		}
2791	<
2792	<	checkCompletedWithWrappedCFException(f, ex);
2793	<	checkCompletedNormally(g, v1);
2791	>	try {
2792	>	assertEquals(null, h2.join());
2793	>	rs[2].assertInvoked();
2794	>	} catch (CompletionException ok) {
2795	>	checkCompletedWithWrappedException(h2, ex);
2796	>	rs[2].assertNotInvoked();
2797		}
2798	<	}
2799	<
2800	<	/**
2801	<	* runAfterEither result completes exceptionally if action does
2802	<	*/
2803	<	public void testRunAfterEither_actionFailed1() {
2779	<	for (ExecutionMode m : ExecutionMode.values())
2780	<	for (Integer v1 : new Integer[] { 1, null })
2781	<	for (Integer v2 : new Integer[] { 2, null }) {
2782	<
2783	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2784	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2785	<	final FailingNoop r = new FailingNoop();
2786	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2787	<
2788	<	f.complete(v1);
2789	<	checkCompletedWithWrappedCFException(h);
2790	<	g.complete(v2);
2791	<	checkCompletedNormally(f, v1);
2792	<	checkCompletedNormally(g, v2);
2798	>	try {
2799	>	assertEquals(null, h3.join());
2800	>	rs[3].assertInvoked();
2801	>	} catch (CompletionException ok) {
2802	>	checkCompletedWithWrappedException(h3, ex);
2803	>	rs[3].assertNotInvoked();
2804		}
2794	–	}
2795	–
2796	–	public void testRunAfterEither_actionFailed2() {
2797	–	for (ExecutionMode m : ExecutionMode.values())
2798	–	for (Integer v1 : new Integer[] { 1, null })
2799	–	for (Integer v2 : new Integer[] { 2, null }) {
2800	–
2801	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2802	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2803	–	final FailingNoop r = new FailingNoop();
2804	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2805
2806	–	g.complete(v2);
2807	–	checkCompletedWithWrappedCFException(h);
2808	–	f.complete(v1);
2806		checkCompletedNormally(f, v1);
2807	<	checkCompletedNormally(g, v2);
2808	<	}
2812	<	}
2807	>	checkCompletedExceptionally(g, ex);
2808	>	}}
2809
2810		/**
2811		* runAfterEither result completes exceptionally if either source cancelled
2812		*/
2813	<	public void testRunAfterEither_sourceCancelled1() {
2813	>	public void testRunAfterEither_sourceCancelled() {
2814		for (ExecutionMode m : ExecutionMode.values())
2815		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2816	<	for (Integer v1 : new Integer[] { 1, null }) {
2817	<
2822	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2823	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2824	<	final Noop r = new Noop();
2825	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2826	<
2827	<	assertTrue(f.cancel(mayInterruptIfRunning));
2828	<	checkCompletedWithWrappedCancellationException(h);
2829	<	g.complete(v1);
2830	<
2831	<	checkCancelled(f);
2832	<	assertEquals(0, r.invocationCount);
2833	<	checkCompletedNormally(g, v1);
2834	<	checkCompletedWithWrappedCancellationException(h);
2835	<	}
2836	<	}
2837	<
2838	<	public void testRunAfterEither_sourceCancelled2() {
2839	<	for (ExecutionMode m : ExecutionMode.values())
2840	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2841	<	for (Integer v1 : new Integer[] { 1, null }) {
2842	<
2843	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2844	<	final CompletableFuture<Integer> g = new CompletableFuture<>();
2845	<	final Noop r = new Noop();
2846	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2847	<
2848	<	assertTrue(g.cancel(mayInterruptIfRunning));
2849	<	checkCompletedWithWrappedCancellationException(h);
2850	<	f.complete(v1);
2851	<
2852	<	checkCancelled(g);
2853	<	assertEquals(0, r.invocationCount);
2854	<	checkCompletedNormally(f, v1);
2855	<	checkCompletedWithWrappedCancellationException(h);
2856	<	}
2857	<	}
2858	<
2859	<	public void testRunAfterEither_sourceCancelled3() {
2860	<	for (ExecutionMode m : ExecutionMode.values())
2861	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2862	<	for (Integer v1 : new Integer[] { 1, null }) {
2863	<
2816	>	for (Integer v1 : new Integer[] { 1, null })
2817	>	{
2818		final CompletableFuture<Integer> f = new CompletableFuture<>();
2819		final CompletableFuture<Integer> g = new CompletableFuture<>();
2820	<	final Noop r = new Noop();
2821	<
2868	<	assertTrue(g.cancel(mayInterruptIfRunning));
2869	<	f.complete(v1);
2870	<	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2820	>	final Noop[] rs = new Noop[6];
2821	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2822
2823	<	// unspecified behavior
2824	<	Integer v;
2823	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2824	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2825	>	checkIncomplete(h0);
2826	>	checkIncomplete(h1);
2827	>	rs[0].assertNotInvoked();
2828	>	rs[1].assertNotInvoked();
2829	>	f.cancel(mayInterruptIfRunning);
2830	>	checkCompletedWithWrappedCancellationException(h0);
2831	>	checkCompletedWithWrappedCancellationException(h1);
2832	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2833	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2834	>	checkCompletedWithWrappedCancellationException(h2);
2835	>	checkCompletedWithWrappedCancellationException(h3);
2836	>
2837	>	assertTrue(g.complete(v1));
2838	>
2839	>	// unspecified behavior - both source completions available
2840	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2841	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2842		try {
2843	<	assertNull(h.join());
2844	<	assertEquals(1, r.invocationCount);
2843	>	assertNull(h4.join());
2844	>	rs[4].assertInvoked();
2845		} catch (CompletionException ok) {
2846	<	checkCompletedWithWrappedCancellationException(h);
2847	<	assertEquals(0, r.invocationCount);
2880	<	}
2881	<
2882	<	checkCancelled(g);
2883	<	checkCompletedNormally(f, v1);
2846	>	checkCompletedWithWrappedCancellationException(h4);
2847	>	rs[4].assertNotInvoked();
2848		}
2885	–	}
2886	–
2887	–	public void testRunAfterEither_sourceCancelled4() {
2888	–	for (ExecutionMode m : ExecutionMode.values())
2889	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2890	–	for (Integer v1 : new Integer[] { 1, null }) {
2891	–
2892	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2893	–	final CompletableFuture<Integer> g = new CompletableFuture<>();
2894	–	final Noop r = new Noop();
2895	–
2896	–	assertTrue(f.cancel(mayInterruptIfRunning));
2897	–	g.complete(v1);
2898	–	final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2899	–
2900	–	// unspecified behavior
2901	–	Integer v;
2849		try {
2850	<	assertNull(h.join());
2851	<	assertEquals(1, r.invocationCount);
2850	>	assertNull(h5.join());
2851	>	rs[5].assertInvoked();
2852		} catch (CompletionException ok) {
2853	<	checkCompletedWithWrappedCancellationException(h);
2854	<	assertEquals(0, r.invocationCount);
2853	>	checkCompletedWithWrappedCancellationException(h5);
2854	>	rs[5].assertNotInvoked();
2855		}
2856
2857		checkCancelled(f);
2858		checkCompletedNormally(g, v1);
2859	<	}
2860	<	}
2859	>	checkCompletedWithWrappedCancellationException(h0);
2860	>	checkCompletedWithWrappedCancellationException(h1);
2861	>	checkCompletedWithWrappedCancellationException(h2);
2862	>	checkCompletedWithWrappedCancellationException(h3);
2863	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2864	>	}}
2865
2866		/**
2867	<	* thenCompose result completes normally after normal completion of source
2867	>	* runAfterEither result completes exceptionally if action does
2868		*/
2869	<	public void testThenCompose_normalCompletion1() {
2869	>	public void testRunAfterEither_actionFailed() {
2870		for (ExecutionMode m : ExecutionMode.values())
2871	<	for (Integer v1 : new Integer[] { 1, null }) {
2872	<
2871	>	for (Integer v1 : new Integer[] { 1, null })
2872	>	for (Integer v2 : new Integer[] { 2, null })
2873	>	{
2874		final CompletableFuture<Integer> f = new CompletableFuture<>();
2875	<	final CompletableFutureInc r = new CompletableFutureInc();
2876	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2877	<	f.complete(v1);
2878	<	checkCompletedNormally(g, inc(v1));
2875	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2876	>	final FailingRunnable[] rs = new FailingRunnable[6];
2877	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2878	>
2879	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2880	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2881	>	assertTrue(f.complete(v1));
2882	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2883	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2884	>	checkCompletedWithWrappedCFException(h0);
2885	>	checkCompletedWithWrappedCFException(h1);
2886	>	checkCompletedWithWrappedCFException(h2);
2887	>	checkCompletedWithWrappedCFException(h3);
2888	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2889	>	assertTrue(g.complete(v2));
2890	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2891	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2892	>	checkCompletedWithWrappedCFException(h4);
2893	>	checkCompletedWithWrappedCFException(h5);
2894	>
2895		checkCompletedNormally(f, v1);
2896	<	assertEquals(1, r.invocationCount);
2897	<	}
2898	<	}
2896	>	checkCompletedNormally(g, v2);
2897	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2898	>	}}
2899
2900	<	public void testThenCompose_normalCompletion2() {
2900	>	/**
2901	>	* thenCompose result completes normally after normal completion of source
2902	>	*/
2903	>	public void testThenCompose_normalCompletion() {
2904		for (ExecutionMode m : ExecutionMode.values())
2905	<	for (Integer v1 : new Integer[] { 1, null }) {
2906	<
2905	>	for (boolean createIncomplete : new boolean[] { true, false })
2906	>	for (Integer v1 : new Integer[] { 1, null })
2907	>	{
2908		final CompletableFuture<Integer> f = new CompletableFuture<>();
2909	<	final CompletableFutureInc r = new CompletableFutureInc();
2910	<	f.complete(v1);
2911	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2909	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2910	>	if (!createIncomplete) assertTrue(f.complete(v1));
2911	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2912	>	if (createIncomplete) assertTrue(f.complete(v1));
2913	>
2914		checkCompletedNormally(g, inc(v1));
2915		checkCompletedNormally(f, v1);
2916	<	assertEquals(1, r.invocationCount);
2917	<	}
2944	<	}
2916	>	r.assertValue(v1);
2917	>	}}
2918
2919		/**
2920		* thenCompose result completes exceptionally after exceptional
2921		* completion of source
2922		*/
2923	<	public void testThenCompose_exceptionalCompletion1() {
2924	<	for (ExecutionMode m : ExecutionMode.values()) {
2925	<
2923	>	public void testThenCompose_exceptionalCompletion() {
2924	>	for (ExecutionMode m : ExecutionMode.values())
2925	>	for (boolean createIncomplete : new boolean[] { true, false })
2926	>	{
2927		final CFException ex = new CFException();
2928	<	final CompletableFutureInc r = new CompletableFutureInc();
2928	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2929		final CompletableFuture<Integer> f = new CompletableFuture<>();
2930	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2931	<	f.completeExceptionally(ex);
2932	<	checkCompletedWithWrappedCFException(g, ex);
2959	<	checkCompletedWithWrappedCFException(f, ex);
2960	<	}
2961	<	}
2962	<
2963	<	public void testThenCompose_exceptionalCompletion2() {
2964	<	for (ExecutionMode m : ExecutionMode.values()) {
2930	>	if (!createIncomplete) f.completeExceptionally(ex);
2931	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2932	>	if (createIncomplete) f.completeExceptionally(ex);
2933
2934	<	final CFException ex = new CFException();
2935	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
2936	<	f.completeExceptionally(ex);
2937	<	final CompletableFutureInc r = new CompletableFutureInc();
2970	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2971	<	checkCompletedWithWrappedCFException(g, ex);
2972	<	checkCompletedWithWrappedCFException(f, ex);
2973	<	}
2974	<	}
2934	>	checkCompletedWithWrappedException(g, ex);
2935	>	checkCompletedExceptionally(f, ex);
2936	>	r.assertNotInvoked();
2937	>	}}
2938
2939		/**
2940		* thenCompose result completes exceptionally if action does
2941		*/
2942	<	public void testThenCompose_actionFailed1() {
2942	>	public void testThenCompose_actionFailed() {
2943		for (ExecutionMode m : ExecutionMode.values())
2944	<	for (Integer v1 : new Integer[] { 1, null }) {
2945	<
2944	>	for (boolean createIncomplete : new boolean[] { true, false })
2945	>	for (Integer v1 : new Integer[] { 1, null })
2946	>	{
2947		final CompletableFuture<Integer> f = new CompletableFuture<>();
2948		final FailingCompletableFutureFunction r
2949	<	= new FailingCompletableFutureFunction();
2950	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2951	<	f.complete(v1);
2952	<	checkCompletedWithWrappedCFException(g);
2989	<	checkCompletedNormally(f, v1);
2990	<	}
2991	<	}
2992	<
2993	<	public void testThenCompose_actionFailed2() {
2994	<	for (ExecutionMode m : ExecutionMode.values())
2995	<	for (Integer v1 : new Integer[] { 1, null }) {
2949	>	= new FailingCompletableFutureFunction(m);
2950	>	if (!createIncomplete) assertTrue(f.complete(v1));
2951	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2952	>	if (createIncomplete) assertTrue(f.complete(v1));
2953
2997	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
2998	–	f.complete(v1);
2999	–	final FailingCompletableFutureFunction r
3000	–	= new FailingCompletableFutureFunction();
3001	–	final CompletableFuture<Integer> g = f.thenCompose(r);
2954		checkCompletedWithWrappedCFException(g);
2955		checkCompletedNormally(f, v1);
2956	<	}
3005	<	}
2956	>	}}
2957
2958		/**
2959		* thenCompose result completes exceptionally if source cancelled
2960		*/
2961	<	public void testThenCompose_sourceCancelled1() {
2961	>	public void testThenCompose_sourceCancelled() {
2962		for (ExecutionMode m : ExecutionMode.values())
2963	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
2964	<
2963	>	for (boolean createIncomplete : new boolean[] { true, false })
2964	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2965	>	{
2966		final CompletableFuture<Integer> f = new CompletableFuture<>();
2967	<	final CompletableFutureInc r = new CompletableFutureInc();
2968	<	final CompletableFuture<Integer> g = f.thenCompose(r);
2969	<	assertTrue(f.cancel(mayInterruptIfRunning));
2970	<	checkCompletedWithWrappedCancellationException(g);
2971	<	checkCancelled(f);
2967	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2968	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
2969	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2970	>	if (createIncomplete) {
2971	>	checkIncomplete(g);
2972	>	assertTrue(f.cancel(mayInterruptIfRunning));
2973		}
3021	–	}
2974
3023	–	public void testThenCompose_sourceCancelled2() {
3024	–	for (ExecutionMode m : ExecutionMode.values())
3025	–	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
3026	–
3027	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
3028	–	assertTrue(f.cancel(mayInterruptIfRunning));
3029	–	final CompletableFutureInc r = new CompletableFutureInc();
3030	–	final CompletableFuture<Integer> g = f.thenCompose(r);
2975		checkCompletedWithWrappedCancellationException(g);
2976		checkCancelled(f);
2977	<	}
3034	<	}
3035	<
3036	<	// asyncs
3037	<
3038	<	/**
3039	<	* thenRunAsync result completes normally after normal completion of source
3040	<	*/
3041	<	public void testThenRunAsync() {
3042	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3043	<	Noop r = new Noop();
3044	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3045	<	f.complete(null);
3046	<	checkCompletedNormally(g, null);
3047	<
3048	<	// reordered version
3049	<	f = new CompletableFuture<>();
3050	<	f.complete(null);
3051	<	r = new Noop();
3052	<	g = f.thenRunAsync(r);
3053	<	checkCompletedNormally(g, null);
3054	<	}
3055	<
3056	<	/**
3057	<	* thenRunAsync result completes exceptionally after exceptional
3058	<	* completion of source
3059	<	*/
3060	<	public void testThenRunAsync2() {
3061	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3062	<	Noop r = new Noop();
3063	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3064	<	f.completeExceptionally(new CFException());
3065	<	try {
3066	<	g.join();
3067	<	shouldThrow();
3068	<	} catch (CompletionException success) {}
3069	<	checkCompletedWithWrappedCFException(g);
3070	<	}
3071	<
3072	<	/**
3073	<	* thenRunAsync result completes exceptionally if action does
3074	<	*/
3075	<	public void testThenRunAsync3() {
3076	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3077	<	FailingNoop r = new FailingNoop();
3078	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3079	<	f.complete(null);
3080	<	checkCompletedWithWrappedCFException(g);
3081	<	}
3082	<
3083	<	/**
3084	<	* thenRunAsync result completes exceptionally if source cancelled
3085	<	*/
3086	<	public void testThenRunAsync4() {
3087	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3088	<	Noop r = new Noop();
3089	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3090	<	assertTrue(f.cancel(true));
3091	<	checkCompletedWithWrappedCancellationException(g);
3092	<	}
3093	<
3094	<	/**
3095	<	* thenApplyAsync result completes normally after normal completion of source
3096	<	*/
3097	<	public void testThenApplyAsync() {
3098	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3099	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3100	<	f.complete(one);
3101	<	checkCompletedNormally(g, two);
3102	<	}
3103	<
3104	<	/**
3105	<	* thenApplyAsync result completes exceptionally after exceptional
3106	<	* completion of source
3107	<	*/
3108	<	public void testThenApplyAsync2() {
3109	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3110	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3111	<	f.completeExceptionally(new CFException());
3112	<	checkCompletedWithWrappedCFException(g);
3113	<	}
3114	<
3115	<	/**
3116	<	* thenApplyAsync result completes exceptionally if action does
3117	<	*/
3118	<	public void testThenApplyAsync3() {
3119	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3120	<	FailingFunction r = new FailingFunction();
3121	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
3122	<	f.complete(null);
3123	<	checkCompletedWithWrappedCFException(g);
3124	<	}
3125	<
3126	<	/**
3127	<	* thenApplyAsync result completes exceptionally if source cancelled
3128	<	*/
3129	<	public void testThenApplyAsync4() {
3130	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3131	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3132	<	assertTrue(f.cancel(true));
3133	<	checkCompletedWithWrappedCancellationException(g);
3134	<	}
3135	<
3136	<	/**
3137	<	* thenAcceptAsync result completes normally after normal
3138	<	* completion of source
3139	<	*/
3140	<	public void testThenAcceptAsync() {
3141	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3142	<	IncAction r = new IncAction();
3143	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3144	<	f.complete(one);
3145	<	checkCompletedNormally(g, null);
3146	<	assertEquals(r.value, (Integer) 2);
3147	<	}
3148	<
3149	<	/**
3150	<	* thenAcceptAsync result completes exceptionally after exceptional
3151	<	* completion of source
3152	<	*/
3153	<	public void testThenAcceptAsync2() {
3154	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3155	<	IncAction r = new IncAction();
3156	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3157	<	f.completeExceptionally(new CFException());
3158	<	checkCompletedWithWrappedCFException(g);
3159	<	}
3160	<
3161	<	/**
3162	<	* thenAcceptAsync result completes exceptionally if action does
3163	<	*/
3164	<	public void testThenAcceptAsync3() {
3165	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3166	<	FailingConsumer r = new FailingConsumer();
3167	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3168	<	f.complete(null);
3169	<	checkCompletedWithWrappedCFException(g);
3170	<	}
3171	<
3172	<	/**
3173	<	* thenAcceptAsync result completes exceptionally if source cancelled
3174	<	*/
3175	<	public void testThenAcceptAsync4() {
3176	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3177	<	IncAction r = new IncAction();
3178	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3179	<	assertTrue(f.cancel(true));
3180	<	checkCompletedWithWrappedCancellationException(g);
3181	<	}
3182	<
3183	<	// async with explicit executors
3184	<
3185	<	/**
3186	<	* thenRunAsync result completes normally after normal completion of source
3187	<	*/
3188	<	public void testThenRunAsyncE() {
3189	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3190	<	Noop r = new Noop();
3191	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3192	<	f.complete(null);
3193	<	checkCompletedNormally(g, null);
3194	<
3195	<	// reordered version
3196	<	f = new CompletableFuture<>();
3197	<	f.complete(null);
3198	<	r = new Noop();
3199	<	g = f.thenRunAsync(r, new ThreadExecutor());
3200	<	checkCompletedNormally(g, null);
3201	<	}
3202	<
3203	<	/**
3204	<	* thenRunAsync result completes exceptionally after exceptional
3205	<	* completion of source
3206	<	*/
3207	<	public void testThenRunAsync2E() {
3208	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3209	<	Noop r = new Noop();
3210	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3211	<	f.completeExceptionally(new CFException());
3212	<	try {
3213	<	g.join();
3214	<	shouldThrow();
3215	<	} catch (CompletionException success) {}
3216	<	checkCompletedWithWrappedCFException(g);
3217	<	}
3218	<
3219	<	/**
3220	<	* thenRunAsync result completes exceptionally if action does
3221	<	*/
3222	<	public void testThenRunAsync3E() {
3223	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3224	<	FailingNoop r = new FailingNoop();
3225	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3226	<	f.complete(null);
3227	<	checkCompletedWithWrappedCFException(g);
3228	<	}
3229	<
3230	<	/**
3231	<	* thenRunAsync result completes exceptionally if source cancelled
3232	<	*/
3233	<	public void testThenRunAsync4E() {
3234	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3235	<	Noop r = new Noop();
3236	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3237	<	assertTrue(f.cancel(true));
3238	<	checkCompletedWithWrappedCancellationException(g);
3239	<	}
3240	<
3241	<	/**
3242	<	* thenApplyAsync result completes normally after normal completion of source
3243	<	*/
3244	<	public void testThenApplyAsyncE() {
3245	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3246	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3247	<	f.complete(one);
3248	<	checkCompletedNormally(g, two);
3249	<	}
3250	<
3251	<	/**
3252	<	* thenApplyAsync result completes exceptionally after exceptional
3253	<	* completion of source
3254	<	*/
3255	<	public void testThenApplyAsync2E() {
3256	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3257	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3258	<	f.completeExceptionally(new CFException());
3259	<	checkCompletedWithWrappedCFException(g);
3260	<	}
3261	<
3262	<	/**
3263	<	* thenApplyAsync result completes exceptionally if action does
3264	<	*/
3265	<	public void testThenApplyAsync3E() {
3266	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3267	<	FailingFunction r = new FailingFunction();
3268	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3269	<	f.complete(null);
3270	<	checkCompletedWithWrappedCFException(g);
3271	<	}
3272	<
3273	<	/**
3274	<	* thenApplyAsync result completes exceptionally if source cancelled
3275	<	*/
3276	<	public void testThenApplyAsync4E() {
3277	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3278	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3279	<	assertTrue(f.cancel(true));
3280	<	checkCompletedWithWrappedCancellationException(g);
3281	<	}
3282	<
3283	<	/**
3284	<	* thenAcceptAsync result completes normally after normal
3285	<	* completion of source
3286	<	*/
3287	<	public void testThenAcceptAsyncE() {
3288	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3289	<	IncAction r = new IncAction();
3290	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3291	<	f.complete(one);
3292	<	checkCompletedNormally(g, null);
3293	<	assertEquals(r.value, (Integer) 2);
3294	<	}
3295	<
3296	<	/**
3297	<	* thenAcceptAsync result completes exceptionally after exceptional
3298	<	* completion of source
3299	<	*/
3300	<	public void testThenAcceptAsync2E() {
3301	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3302	<	IncAction r = new IncAction();
3303	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3304	<	f.completeExceptionally(new CFException());
3305	<	checkCompletedWithWrappedCFException(g);
3306	<	}
2977	>	}}
2978
2979		/**
2980	<	* thenAcceptAsync result completes exceptionally if action does
2980	>	* thenCompose result completes exceptionally if the result of the action does
2981		*/
2982	<	public void testThenAcceptAsync3E() {
2983	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2984	<	FailingConsumer r = new FailingConsumer();
2985	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2986	<	f.complete(null);
2987	<	checkCompletedWithWrappedCFException(g);
2988	<	}
2982	>	public void testThenCompose_actionReturnsFailingFuture() {
2983	>	for (ExecutionMode m : ExecutionMode.values())
2984	>	for (int order = 0; order < 6; order++)
2985	>	for (Integer v1 : new Integer[] { 1, null })
2986	>	{
2987	>	final CFException ex = new CFException();
2988	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2989	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2990	>	final CompletableFuture<Integer> h;
2991	>	// Test all permutations of orders
2992	>	switch (order) {
2993	>	case 0:
2994	>	assertTrue(f.complete(v1));
2995	>	assertTrue(g.completeExceptionally(ex));
2996	>	h = m.thenCompose(f, (x -> g));
2997	>	break;
2998	>	case 1:
2999	>	assertTrue(f.complete(v1));
3000	>	h = m.thenCompose(f, (x -> g));
3001	>	assertTrue(g.completeExceptionally(ex));
3002	>	break;
3003	>	case 2:
3004	>	assertTrue(g.completeExceptionally(ex));
3005	>	assertTrue(f.complete(v1));
3006	>	h = m.thenCompose(f, (x -> g));
3007	>	break;
3008	>	case 3:
3009	>	assertTrue(g.completeExceptionally(ex));
3010	>	h = m.thenCompose(f, (x -> g));
3011	>	assertTrue(f.complete(v1));
3012	>	break;
3013	>	case 4:
3014	>	h = m.thenCompose(f, (x -> g));
3015	>	assertTrue(f.complete(v1));
3016	>	assertTrue(g.completeExceptionally(ex));
3017	>	break;
3018	>	case 5:
3019	>	h = m.thenCompose(f, (x -> g));
3020	>	assertTrue(f.complete(v1));
3021	>	assertTrue(g.completeExceptionally(ex));
3022	>	break;
3023	>	default: throw new AssertionError();
3024	>	}
3025
3026	<	/**
3027	<	* thenAcceptAsync result completes exceptionally if source cancelled
3028	<	*/
3029	<	public void testThenAcceptAsync4E() {
3323	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3324	<	IncAction r = new IncAction();
3325	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3326	<	assertTrue(f.cancel(true));
3327	<	checkCompletedWithWrappedCancellationException(g);
3328	<	}
3026	>	checkCompletedExceptionally(g, ex);
3027	>	checkCompletedWithWrappedException(h, ex);
3028	>	checkCompletedNormally(f, v1);
3029	>	}}
3030
3031		// other static methods
3032
#	Line 3343 | Line 3044 | public class CompletableFutureTest exten
3044		* when all components complete normally
3045		*/
3046		public void testAllOf_normal() throws Exception {
3047	<	for (int k = 1; k < 20; ++k) {
3048	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3049	<	for (int i = 0; i < k; ++i)
3047	>	for (int k = 1; k < 10; k++) {
3048	>	CompletableFuture<Integer>[] fs
3049	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3050	>	for (int i = 0; i < k; i++)
3051		fs[i] = new CompletableFuture<>();
3052		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3053	<	for (int i = 0; i < k; ++i) {
3053	>	for (int i = 0; i < k; i++) {
3054		checkIncomplete(f);
3055		checkIncomplete(CompletableFuture.allOf(fs));
3056		fs[i].complete(one);
#	Line 3358 | Line 3060 | public class CompletableFutureTest exten
3060		}
3061		}
3062
3063	+	public void testAllOf_backwards() throws Exception {
3064	+	for (int k = 1; k < 10; k++) {
3065	+	CompletableFuture<Integer>[] fs
3066	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3067	+	for (int i = 0; i < k; i++)
3068	+	fs[i] = new CompletableFuture<>();
3069	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3070	+	for (int i = k - 1; i >= 0; i--) {
3071	+	checkIncomplete(f);
3072	+	checkIncomplete(CompletableFuture.allOf(fs));
3073	+	fs[i].complete(one);
3074	+	}
3075	+	checkCompletedNormally(f, null);
3076	+	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3077	+	}
3078	+	}
3079	+
3080	+	public void testAllOf_exceptional() throws Exception {
3081	+	for (int k = 1; k < 10; k++) {
3082	+	CompletableFuture<Integer>[] fs
3083	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3084	+	CFException ex = new CFException();
3085	+	for (int i = 0; i < k; i++)
3086	+	fs[i] = new CompletableFuture<>();
3087	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3088	+	for (int i = 0; i < k; i++) {
3089	+	checkIncomplete(f);
3090	+	checkIncomplete(CompletableFuture.allOf(fs));
3091	+	if (i != k / 2) {
3092	+	fs[i].complete(i);
3093	+	checkCompletedNormally(fs[i], i);
3094	+	} else {
3095	+	fs[i].completeExceptionally(ex);
3096	+	checkCompletedExceptionally(fs[i], ex);
3097	+	}
3098	+	}
3099	+	checkCompletedWithWrappedException(f, ex);
3100	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3101	+	}
3102	+	}
3103	+
3104		/**
3105		* anyOf(no component futures) returns an incomplete future
3106		*/
3107		public void testAnyOf_empty() throws Exception {
3108	+	for (Integer v1 : new Integer[] { 1, null })
3109	+	{
3110		CompletableFuture<Object> f = CompletableFuture.anyOf();
3111		checkIncomplete(f);
3112	<	}
3112	>
3113	>	f.complete(v1);
3114	>	checkCompletedNormally(f, v1);
3115	>	}}
3116
3117		/**
3118		* anyOf returns a future completed normally with a value when
3119		* a component future does
3120		*/
3121		public void testAnyOf_normal() throws Exception {
3122	<	for (int k = 0; k < 10; ++k) {
3122	>	for (int k = 0; k < 10; k++) {
3123		CompletableFuture[] fs = new CompletableFuture[k];
3124	<	for (int i = 0; i < k; ++i)
3124	>	for (int i = 0; i < k; i++)
3125		fs[i] = new CompletableFuture<>();
3126		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3127		checkIncomplete(f);
3128	<	for (int i = 0; i < k; ++i) {
3129	<	fs[i].complete(one);
3130	<	checkCompletedNormally(f, one);
3131	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3128	>	for (int i = 0; i < k; i++) {
3129	>	fs[i].complete(i);
3130	>	checkCompletedNormally(f, 0);
3131	>	int x = (int) CompletableFuture.anyOf(fs).join();
3132	>	assertTrue(0 <= x && x <= i);
3133	>	}
3134	>	}
3135	>	}
3136	>	public void testAnyOf_normal_backwards() throws Exception {
3137	>	for (int k = 0; k < 10; k++) {
3138	>	CompletableFuture[] fs = new CompletableFuture[k];
3139	>	for (int i = 0; i < k; i++)
3140	>	fs[i] = new CompletableFuture<>();
3141	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3142	>	checkIncomplete(f);
3143	>	for (int i = k - 1; i >= 0; i--) {
3144	>	fs[i].complete(i);
3145	>	checkCompletedNormally(f, k - 1);
3146	>	int x = (int) CompletableFuture.anyOf(fs).join();
3147	>	assertTrue(i <= x && x <= k - 1);
3148		}
3149		}
3150		}
#	Line 3389 | Line 3153 | public class CompletableFutureTest exten
3153		* anyOf result completes exceptionally when any component does.
3154		*/
3155		public void testAnyOf_exceptional() throws Exception {
3156	<	for (int k = 0; k < 10; ++k) {
3156	>	for (int k = 0; k < 10; k++) {
3157	>	CompletableFuture[] fs = new CompletableFuture[k];
3158	>	CFException[] exs = new CFException[k];
3159	>	for (int i = 0; i < k; i++) {
3160	>	fs[i] = new CompletableFuture<>();
3161	>	exs[i] = new CFException();
3162	>	}
3163	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3164	>	checkIncomplete(f);
3165	>	for (int i = 0; i < k; i++) {
3166	>	fs[i].completeExceptionally(exs[i]);
3167	>	checkCompletedWithWrappedException(f, exs[0]);
3168	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3169	>	}
3170	>	}
3171	>	}
3172	>
3173	>	public void testAnyOf_exceptional_backwards() throws Exception {
3174	>	for (int k = 0; k < 10; k++) {
3175		CompletableFuture[] fs = new CompletableFuture[k];
3176	<	for (int i = 0; i < k; ++i)
3176	>	CFException[] exs = new CFException[k];
3177	>	for (int i = 0; i < k; i++) {
3178		fs[i] = new CompletableFuture<>();
3179	+	exs[i] = new CFException();
3180	+	}
3181		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3182		checkIncomplete(f);
3183	<	for (int i = 0; i < k; ++i) {
3184	<	fs[i].completeExceptionally(new CFException());
3185	<	checkCompletedWithWrappedCFException(f);
3183	>	for (int i = k - 1; i >= 0; i--) {
3184	>	fs[i].completeExceptionally(exs[i]);
3185	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3186		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3187		}
3188		}
#	Line 3410 | Line 3195 | public class CompletableFutureTest exten
3195		CompletableFuture<Integer> f = new CompletableFuture<>();
3196		CompletableFuture<Integer> g = new CompletableFuture<>();
3197		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3413	–	CompletableFuture<?> h;
3198		ThreadExecutor exec = new ThreadExecutor();
3199
3200		Runnable[] throwingActions = {
3201		() -> CompletableFuture.supplyAsync(null),
3202		() -> CompletableFuture.supplyAsync(null, exec),
3203	<	() -> CompletableFuture.supplyAsync(supplyOne, null),
3203	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3204
3205		() -> CompletableFuture.runAsync(null),
3206		() -> CompletableFuture.runAsync(null, exec),
#	Line 3489 | Line 3273 | public class CompletableFutureTest exten
3273
3274		() -> f.thenCompose(null),
3275		() -> f.thenComposeAsync(null),
3276	<	() -> f.thenComposeAsync(new CompletableFutureInc(), null),
3276	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3277		() -> f.thenComposeAsync(null, exec),
3278
3279		() -> f.exceptionally(null),
#	Line 3507 | Line 3291 | public class CompletableFutureTest exten
3291		() -> CompletableFuture.anyOf(null, f),
3292
3293		() -> f.obtrudeException(null),
3294	+
3295	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3296	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3297	+	() -> CompletableFuture.delayedExecutor(1L, null),
3298	+
3299	+	() -> f.orTimeout(1L, null),
3300	+	() -> f.completeOnTimeout(42, 1L, null),
3301	+
3302	+	() -> CompletableFuture.failedFuture(null),
3303	+	() -> CompletableFuture.failedStage(null),
3304		};
3305
3306		assertThrows(NullPointerException.class, throwingActions);
#	Line 3521 | Line 3315 | public class CompletableFutureTest exten
3315		assertSame(f, f.toCompletableFuture());
3316		}
3317
3318	+	// jdk9
3319	+
3320		/**
3321	<	* whenComplete action executes on normal completion, propagating
3526	<	* source result.
3321	>	* newIncompleteFuture returns an incomplete CompletableFuture
3322		*/
3323	<	public void testWhenComplete_normalCompletion1() {
3529	<	for (ExecutionMode m : ExecutionMode.values())
3530	<	for (boolean createIncomplete : new boolean[] { true, false })
3323	>	public void testNewIncompleteFuture() {
3324		for (Integer v1 : new Integer[] { 1, null })
3325		{
3326	<	final AtomicInteger a = new AtomicInteger(0);
3327	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3328	<	if (!createIncomplete) f.complete(v1);
3329	<	final CompletableFuture<Integer> g = m.whenComplete
3330	<	(f,
3538	<	(Integer x, Throwable t) -> {
3539	<	threadAssertSame(x, v1);
3540	<	threadAssertNull(t);
3541	<	a.getAndIncrement();
3542	<	});
3543	<	if (createIncomplete) f.complete(v1);
3544	<
3545	<	checkCompletedNormally(g, v1);
3326	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3327	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3328	>	checkIncomplete(f);
3329	>	checkIncomplete(g);
3330	>	f.complete(v1);
3331		checkCompletedNormally(f, v1);
3332	<	assertEquals(1, a.get());
3332	>	checkIncomplete(g);
3333	>	g.complete(v1);
3334	>	checkCompletedNormally(g, v1);
3335	>	assertSame(g.getClass(), CompletableFuture.class);
3336		}}
3337
3338		/**
3339	<	* whenComplete action executes on exceptional completion, propagating
3552	<	* source result.
3339	>	* completedStage returns a completed CompletionStage
3340		*/
3341	<	public void testWhenComplete_exceptionalCompletion() {
3342	<	for (ExecutionMode m : ExecutionMode.values())
3343	<	for (boolean createIncomplete : new boolean[] { true, false })
3341	>	public void testCompletedStage() {
3342	>	AtomicInteger x = new AtomicInteger(0);
3343	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3344	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3345	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3346	>	assertEquals(x.get(), 1);
3347	>	assertNull(r.get());
3348	>	}
3349	>
3350	>	/**
3351	>	* defaultExecutor by default returns the commonPool if
3352	>	* it supports more than one thread.
3353	>	*/
3354	>	public void testDefaultExecutor() {
3355	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3356	>	Executor e = f.defaultExecutor();
3357	>	Executor c = ForkJoinPool.commonPool();
3358	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3359	>	assertSame(e, c);
3360	>	else
3361	>	assertNotSame(e, c);
3362	>	}
3363	>
3364	>	/**
3365	>	* failedFuture returns a CompletableFuture completed
3366	>	* exceptionally with the given Exception
3367	>	*/
3368	>	public void testFailedFuture() {
3369	>	CFException ex = new CFException();
3370	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3371	>	checkCompletedExceptionally(f, ex);
3372	>	}
3373	>
3374	>	/**
3375	>	* failedFuture(null) throws NPE
3376	>	*/
3377	>	public void testFailedFuture_null() {
3378	>	try {
3379	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3380	>	shouldThrow();
3381	>	} catch (NullPointerException success) {}
3382	>	}
3383	>
3384	>	/**
3385	>	* copy returns a CompletableFuture that is completed normally,
3386	>	* with the same value, when source is.
3387	>	*/
3388	>	public void testCopy() {
3389	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3390	>	CompletableFuture<Integer> g = f.copy();
3391	>	checkIncomplete(f);
3392	>	checkIncomplete(g);
3393	>	f.complete(1);
3394	>	checkCompletedNormally(f, 1);
3395	>	checkCompletedNormally(g, 1);
3396	>	}
3397	>
3398	>	/**
3399	>	* copy returns a CompletableFuture that is completed exceptionally
3400	>	* when source is.
3401	>	*/
3402	>	public void testCopy2() {
3403	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3404	>	CompletableFuture<Integer> g = f.copy();
3405	>	checkIncomplete(f);
3406	>	checkIncomplete(g);
3407	>	CFException ex = new CFException();
3408	>	f.completeExceptionally(ex);
3409	>	checkCompletedExceptionally(f, ex);
3410	>	checkCompletedWithWrappedException(g, ex);
3411	>	}
3412	>
3413	>	/**
3414	>	* minimalCompletionStage returns a CompletableFuture that is
3415	>	* completed normally, with the same value, when source is.
3416	>	*/
3417	>	public void testMinimalCompletionStage() {
3418	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3419	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3420	>	AtomicInteger x = new AtomicInteger(0);
3421	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3422	>	checkIncomplete(f);
3423	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3424	>	f.complete(1);
3425	>	checkCompletedNormally(f, 1);
3426	>	assertEquals(x.get(), 1);
3427	>	assertNull(r.get());
3428	>	}
3429	>
3430	>	/**
3431	>	* minimalCompletionStage returns a CompletableFuture that is
3432	>	* completed exceptionally when source is.
3433	>	*/
3434	>	public void testMinimalCompletionStage2() {
3435	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3436	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3437	>	AtomicInteger x = new AtomicInteger(0);
3438	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3439	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3440	>	checkIncomplete(f);
3441	>	CFException ex = new CFException();
3442	>	f.completeExceptionally(ex);
3443	>	checkCompletedExceptionally(f, ex);
3444	>	assertEquals(x.get(), 0);
3445	>	assertEquals(r.get().getCause(), ex);
3446	>	}
3447	>
3448	>	/**
3449	>	* failedStage returns a CompletionStage completed
3450	>	* exceptionally with the given Exception
3451	>	*/
3452	>	public void testFailedStage() {
3453	>	CFException ex = new CFException();
3454	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3455	>	AtomicInteger x = new AtomicInteger(0);
3456	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3457	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3458	>	assertEquals(x.get(), 0);
3459	>	assertEquals(r.get(), ex);
3460	>	}
3461	>
3462	>	/**
3463	>	* completeAsync completes with value of given supplier
3464	>	*/
3465	>	public void testCompleteAsync() {
3466		for (Integer v1 : new Integer[] { 1, null })
3467		{
3468	<	final AtomicInteger a = new AtomicInteger(0);
3469	<	final CFException ex = new CFException();
3470	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3471	<	if (!createIncomplete) f.completeExceptionally(ex);
3563	<	final CompletableFuture<Integer> g = m.whenComplete
3564	<	(f,
3565	<	(Integer x, Throwable t) -> {
3566	<	threadAssertNull(x);
3567	<	threadAssertSame(t, ex);
3568	<	a.getAndIncrement();
3569	<	});
3570	<	if (createIncomplete) f.completeExceptionally(ex);
3571	<	checkCompletedWithWrappedCFException(f, ex);
3572	<	checkCompletedWithWrappedCFException(g, ex);
3573	<	assertEquals(1, a.get());
3468	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3469	>	f.completeAsync(() -> v1);
3470	>	f.join();
3471	>	checkCompletedNormally(f, v1);
3472		}}
3473
3474		/**
3475	<	* whenComplete action executes on cancelled source, propagating
3578	<	* CancellationException.
3475	>	* completeAsync completes exceptionally if given supplier throws
3476		*/
3477	<	public void testWhenComplete_sourceCancelled() {
3478	<	for (ExecutionMode m : ExecutionMode.values())
3479	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3480	<	for (boolean createIncomplete : new boolean[] { true, false })
3481	<	{
3482	<	final AtomicInteger a = new AtomicInteger(0);
3483	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3484	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3485	<	final CompletableFuture<Integer> g = m.whenComplete
3486	<	(f,
3590	<	(Integer x, Throwable t) -> {
3591	<	threadAssertNull(x);
3592	<	threadAssertTrue(t instanceof CancellationException);
3593	<	a.getAndIncrement();
3594	<	});
3595	<	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3477	>	public void testCompleteAsync2() {
3478	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3479	>	CFException ex = new CFException();
3480	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3481	>	try {
3482	>	f.join();
3483	>	shouldThrow();
3484	>	} catch (CompletionException success) {}
3485	>	checkCompletedWithWrappedException(f, ex);
3486	>	}
3487
3488	<	//try { g.join(); } catch (Throwable t) { throw new Error(t); }
3489	<	checkCompletedWithWrappedCancellationException(g);
3490	<	checkCancelled(f);
3491	<	assertEquals(1, a.get());
3488	>	/**
3489	>	* completeAsync with given executor completes with value of given supplier
3490	>	*/
3491	>	public void testCompleteAsync3() {
3492	>	for (Integer v1 : new Integer[] { 1, null })
3493	>	{
3494	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3495	>	ThreadExecutor executor = new ThreadExecutor();
3496	>	f.completeAsync(() -> v1, executor);
3497	>	assertSame(v1, f.join());
3498	>	checkCompletedNormally(f, v1);
3499	>	assertEquals(1, executor.count.get());
3500		}}
3501
3502		/**
3503	<	* If a whenComplete action throws an exception when triggered by
3504	<	* a normal completion, it completes exceptionally
3503	>	* completeAsync with given executor completes exceptionally if
3504	>	* given supplier throws
3505		*/
3506	<	public void testWhenComplete_actionFailed() {
3507	<	for (boolean createIncomplete : new boolean[] { true, false })
3508	<	for (ExecutionMode m : ExecutionMode.values())
3509	<	for (Integer v1 : new Integer[] { 1, null }) {
3506	>	public void testCompleteAsync4() {
3507	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3508	>	CFException ex = new CFException();
3509	>	ThreadExecutor executor = new ThreadExecutor();
3510	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3511	>	try {
3512	>	f.join();
3513	>	shouldThrow();
3514	>	} catch (CompletionException success) {}
3515	>	checkCompletedWithWrappedException(f, ex);
3516	>	assertEquals(1, executor.count.get());
3517	>	}
3518
3519	<	final AtomicInteger a = new AtomicInteger(0);
3520	<	final CFException ex = new CFException();
3521	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3522	<	if (!createIncomplete) f.complete(v1);
3523	<	final CompletableFuture<Integer> g = m.whenComplete
3524	<	(f,
3525	<	(Integer x, Throwable t) -> {
3526	<	threadAssertSame(x, v1);
3527	<	threadAssertNull(t);
3528	<	a.getAndIncrement();
3529	<	throw ex;
3530	<	});
3531	<	if (createIncomplete) f.complete(v1);
3519	>	/**
3520	>	* orTimeout completes with TimeoutException if not complete
3521	>	*/
3522	>	public void testOrTimeout_timesOut() {
3523	>	long timeoutMillis = timeoutMillis();
3524	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3525	>	long startTime = System.nanoTime();
3526	>	f.orTimeout(timeoutMillis, MILLISECONDS);
3527	>	checkCompletedWithTimeoutException(f);
3528	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3529	>	}
3530	>
3531	>	/**
3532	>	* orTimeout completes normally if completed before timeout
3533	>	*/
3534	>	public void testOrTimeout_completed() {
3535	>	for (Integer v1 : new Integer[] { 1, null })
3536	>	{
3537	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3538	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3539	>	long startTime = System.nanoTime();
3540	>	f.complete(v1);
3541	>	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3542	>	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3543	>	g.complete(v1);
3544		checkCompletedNormally(f, v1);
3545	<	checkCompletedWithWrappedCFException(g, ex);
3546	<	assertEquals(1, a.get());
3547	<	}
3545	>	checkCompletedNormally(g, v1);
3546	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3547	>	}}
3548	>
3549	>	/**
3550	>	* completeOnTimeout completes with given value if not complete
3551	>	*/
3552	>	public void testCompleteOnTimeout_timesOut() {
3553	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3554	>	() -> testCompleteOnTimeout_timesOut(null));
3555	>	}
3556	>
3557	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3558	>	long timeoutMillis = timeoutMillis();
3559	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3560	>	long startTime = System.nanoTime();
3561	>	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3562	>	assertSame(v, f.join());
3563	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3564	>	f.complete(99);         // should have no effect
3565	>	checkCompletedNormally(f, v);
3566		}
3567
3568		/**
3569	<	* If a whenComplete action throws an exception when triggered by
3633	<	* a source completion that also throws an exception, the source
3634	<	* exception takes precedence.
3569	>	* completeOnTimeout has no effect if completed within timeout
3570		*/
3571	<	public void testWhenComplete_actionFailedSourceFailed() {
3572	<	for (boolean createIncomplete : new boolean[] { true, false })
3571	>	public void testCompleteOnTimeout_completed() {
3572	>	for (Integer v1 : new Integer[] { 1, null })
3573	>	{
3574	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3575	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3576	>	long startTime = System.nanoTime();
3577	>	f.complete(v1);
3578	>	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3579	>	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3580	>	g.complete(v1);
3581	>	checkCompletedNormally(f, v1);
3582	>	checkCompletedNormally(g, v1);
3583	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3584	>	}}
3585	>
3586	>	/**
3587	>	* delayedExecutor returns an executor that delays submission
3588	>	*/
3589	>	public void testDelayedExecutor() {
3590	>	testInParallel(() -> testDelayedExecutor(null, null),
3591	>	() -> testDelayedExecutor(null, 1),
3592	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3593	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3594	>	}
3595	>
3596	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3597	>	long timeoutMillis = timeoutMillis();
3598	>	// Use an "unreasonably long" long timeout to catch lingering threads
3599	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3600	>	final Executor delayer, longDelayer;
3601	>	if (executor == null) {
3602	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3603	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3604	>	} else {
3605	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3606	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3607	>	}
3608	>	long startTime = System.nanoTime();
3609	>	CompletableFuture<Integer> f =
3610	>	CompletableFuture.supplyAsync(() -> v, delayer);
3611	>	CompletableFuture<Integer> g =
3612	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3613	>
3614	>	assertNull(g.getNow(null));
3615	>
3616	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3617	>	long millisElapsed = millisElapsedSince(startTime);
3618	>	assertTrue(millisElapsed >= timeoutMillis);
3619	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3620	>
3621	>	checkCompletedNormally(f, v);
3622	>
3623	>	checkIncomplete(g);
3624	>	assertTrue(g.cancel(true));
3625	>	}
3626	>
3627	>	//--- tests of implementation details; not part of official tck ---
3628	>
3629	>	Object resultOf(CompletableFuture<?> f) {
3630	>	try {
3631	>	java.lang.reflect.Field resultField
3632	>	= CompletableFuture.class.getDeclaredField("result");
3633	>	resultField.setAccessible(true);
3634	>	return resultField.get(f);
3635	>	} catch (Throwable t) { throw new AssertionError(t); }
3636	>	}
3637	>
3638	>	public void testExceptionPropagationReusesResultObject() {
3639	>	if (!testImplementationDetails) return;
3640		for (ExecutionMode m : ExecutionMode.values())
3641	<	for (Integer v1 : new Integer[] { 1, null }) {
3641	>	{
3642	>	final CFException ex = new CFException();
3643	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3644	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3645
3646	<	final AtomicInteger a = new AtomicInteger(0);
3647	<	final CFException ex1 = new CFException();
3643	<	final CFException ex2 = new CFException();
3644	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3646	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3647	>	= new ArrayList<>();
3648
3649	<	if (!createIncomplete) f.completeExceptionally(ex1);
3650	<	final CompletableFuture<Integer> g = m.whenComplete
3651	<	(f,
3649	<	(Integer x, Throwable t) -> {
3650	<	threadAssertSame(t, ex1);
3651	<	threadAssertNull(x);
3652	<	a.getAndIncrement();
3653	<	throw ex2;
3654	<	});
3655	<	if (createIncomplete) f.completeExceptionally(ex1);
3649	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3650	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3651	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3652
3653	<	checkCompletedWithWrappedCFException(f, ex1);
3654	<	checkCompletedWithWrappedCFException(g, ex1);
3655	<	assertEquals(1, a.get());
3653	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3654	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3655	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3656	>
3657	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3658	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3659	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3660	>
3661	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3662	>
3663	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3664	>
3665	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3666	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3667	>
3668	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3669	>	fun : funs) {
3670	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3671	>	f.completeExceptionally(ex);
3672	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3673	>	checkCompletedWithWrappedException(src, ex);
3674	>	CompletableFuture<?> dep = fun.apply(src);
3675	>	checkCompletedWithWrappedException(dep, ex);
3676	>	assertSame(resultOf(src), resultOf(dep));
3677		}
3678	<	}
3678	>
3679	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3680	>	fun : funs) {
3681	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3682	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3683	>	CompletableFuture<?> dep = fun.apply(src);
3684	>	f.completeExceptionally(ex);
3685	>	checkCompletedWithWrappedException(src, ex);
3686	>	checkCompletedWithWrappedException(dep, ex);
3687	>	assertSame(resultOf(src), resultOf(dep));
3688	>	}
3689	>
3690	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3691	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3692	>	fun : funs) {
3693	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3694	>	f.cancel(mayInterruptIfRunning);
3695	>	checkCancelled(f);
3696	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3697	>	checkCompletedWithWrappedCancellationException(src);
3698	>	CompletableFuture<?> dep = fun.apply(src);
3699	>	checkCompletedWithWrappedCancellationException(dep);
3700	>	assertSame(resultOf(src), resultOf(dep));
3701	>	}
3702	>
3703	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3704	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3705	>	fun : funs) {
3706	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3707	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3708	>	CompletableFuture<?> dep = fun.apply(src);
3709	>	f.cancel(mayInterruptIfRunning);
3710	>	checkCancelled(f);
3711	>	checkCompletedWithWrappedCancellationException(src);
3712	>	checkCompletedWithWrappedCancellationException(dep);
3713	>	assertSame(resultOf(src), resultOf(dep));
3714	>	}
3715	>	}}
3716	>
3717	>	/**
3718	>	* Minimal completion stages throw UOE for all non-CompletionStage methods
3719	>	*/
3720	>	public void testMinimalCompletionStage_minimality() {
3721	>	if (!testImplementationDetails) return;
3722	>	Function<Method, String> toSignature =
3723	>	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3724	>	Predicate<Method> isNotStatic =
3725	>	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3726	>	List<Method> minimalMethods =
3727	>	Stream.of(Object.class, CompletionStage.class)
3728	>	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3729	>	.filter(isNotStatic)
3730	>	.collect(Collectors.toList());
3731	>	// Methods from CompletableFuture permitted NOT to throw UOE
3732	>	String[] signatureWhitelist = {
3733	>	"newIncompleteFuture[]",
3734	>	"defaultExecutor[]",
3735	>	"minimalCompletionStage[]",
3736	>	"copy[]",
3737	>	};
3738	>	Set<String> permittedMethodSignatures =
3739	>	Stream.concat(minimalMethods.stream().map(toSignature),
3740	>	Stream.of(signatureWhitelist))
3741	>	.collect(Collectors.toSet());
3742	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3743	>	.filter(isNotStatic)
3744	>	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3745	>	.collect(Collectors.toList());
3746	>
3747	>	CompletionStage<Integer> minimalStage =
3748	>	new CompletableFuture<Integer>().minimalCompletionStage();
3749	>
3750	>	List<Method> bugs = new ArrayList<>();
3751	>	for (Method method : allMethods) {
3752	>	Class<?>[] parameterTypes = method.getParameterTypes();
3753	>	Object[] args = new Object[parameterTypes.length];
3754	>	// Manufacture boxed primitives for primitive params
3755	>	for (int i = 0; i < args.length; i++) {
3756	>	Class<?> type = parameterTypes[i];
3757	>	if (parameterTypes[i] == boolean.class)
3758	>	args[i] = false;
3759	>	else if (parameterTypes[i] == int.class)
3760	>	args[i] = 0;
3761	>	else if (parameterTypes[i] == long.class)
3762	>	args[i] = 0L;
3763	>	}
3764	>	try {
3765	>	method.invoke(minimalStage, args);
3766	>	bugs.add(method);
3767	>	}
3768	>	catch (java.lang.reflect.InvocationTargetException expected) {
3769	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3770	>	bugs.add(method);
3771	>	// expected.getCause().printStackTrace();
3772	>	}
3773	>	}
3774	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3775	>	}
3776	>	if (!bugs.isEmpty())
3777	>	throw new Error("Methods did not throw UOE: " + bugs.toString());
3778	>	}
3779	>
3780	>	static class Monad {
3781	>	static class ZeroException extends RuntimeException {
3782	>	public ZeroException() { super("monadic zero"); }
3783	>	}
3784	>	// "return", "unit"
3785	>	static <T> CompletableFuture<T> unit(T value) {
3786	>	return completedFuture(value);
3787	>	}
3788	>	// monadic zero ?
3789	>	static <T> CompletableFuture<T> zero() {
3790	>	return failedFuture(new ZeroException());
3791	>	}
3792	>	// >=>
3793	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
3794	>	(Function<T, CompletableFuture<U>> f,
3795	>	Function<U, CompletableFuture<V>> g) {
3796	>	return (x) -> f.apply(x).thenCompose(g);
3797	>	}
3798	>
3799	>	static void assertZero(CompletableFuture<?> f) {
3800	>	try {
3801	>	f.getNow(null);
3802	>	throw new AssertionFailedError("should throw");
3803	>	} catch (CompletionException success) {
3804	>	assertTrue(success.getCause() instanceof ZeroException);
3805	>	}
3806	>	}
3807	>
3808	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
3809	>	CompletableFuture<T> g) {
3810	>	T fval = null, gval = null;
3811	>	Throwable fex = null, gex = null;
3812	>
3813	>	try { fval = f.get(); }
3814	>	catch (ExecutionException ex) { fex = ex.getCause(); }
3815	>	catch (Throwable ex) { fex = ex; }
3816	>
3817	>	try { gval = g.get(); }
3818	>	catch (ExecutionException ex) { gex = ex.getCause(); }
3819	>	catch (Throwable ex) { gex = ex; }
3820	>
3821	>	if (fex != null || gex != null)
3822	>	assertSame(fex.getClass(), gex.getClass());
3823	>	else
3824	>	assertEquals(fval, gval);
3825	>	}
3826	>
3827	>	static class PlusFuture<T> extends CompletableFuture<T> {
3828	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3829	>	}
3830	>
3831	>	/** Implements "monadic plus". */
3832	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3833	>	CompletableFuture<? extends T> g) {
3834	>	PlusFuture<T> plus = new PlusFuture<T>();
3835	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3836	>	try {
3837	>	if (ex == null) {
3838	>	if (plus.complete(result))
3839	>	if (plus.firstFailure.get() != null)
3840	>	plus.firstFailure.set(null);
3841	>	}
3842	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
3843	>	if (plus.isDone())
3844	>	plus.firstFailure.set(null);
3845	>	}
3846	>	else {
3847	>	// first failure has precedence
3848	>	Throwable first = plus.firstFailure.getAndSet(null);
3849	>
3850	>	// may fail with "Self-suppression not permitted"
3851	>	try { first.addSuppressed(ex); }
3852	>	catch (Exception ignored) {}
3853	>
3854	>	plus.completeExceptionally(first);
3855	>	}
3856	>	} catch (Throwable unexpected) {
3857	>	plus.completeExceptionally(unexpected);
3858	>	}
3859	>	};
3860	>	f.whenComplete(action);
3861	>	g.whenComplete(action);
3862	>	return plus;
3863	>	}
3864	>	}
3865	>
3866	>	/**
3867	>	* CompletableFuture is an additive monad - sort of.
3868	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3869	>	*/
3870	>	public void testAdditiveMonad() throws Throwable {
3871	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3872	>	CompletableFuture<Long> zero = Monad.zero();
3873	>
3874	>	// Some mutually non-commutative functions
3875	>	Function<Long, CompletableFuture<Long>> triple
3876	>	= (x) -> Monad.unit(3 * x);
3877	>	Function<Long, CompletableFuture<Long>> inc
3878	>	= (x) -> Monad.unit(x + 1);
3879	>
3880	>	// unit is a right identity: m >>= unit === m
3881	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3882	>	inc.apply(5L));
3883	>	// unit is a left identity: (unit x) >>= f === f x
3884	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3885	>	inc.apply(5L));
3886	>
3887	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3888	>	Monad.assertFutureEquals(
3889	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3890	>	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3891	>
3892	>	// The case for CompletableFuture as an additive monad is weaker...
3893	>
3894	>	// zero is a monadic zero
3895	>	Monad.assertZero(zero);
3896	>
3897	>	// left zero: zero >>= f === zero
3898	>	Monad.assertZero(zero.thenCompose(inc));
3899	>	// right zero: f >>= (\x -> zero) === zero
3900	>	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3901	>
3902	>	// f plus zero === f
3903	>	Monad.assertFutureEquals(Monad.unit(5L),
3904	>	Monad.plus(Monad.unit(5L), zero));
3905	>	// zero plus f === f
3906	>	Monad.assertFutureEquals(Monad.unit(5L),
3907	>	Monad.plus(zero, Monad.unit(5L)));
3908	>	// zero plus zero === zero
3909	>	Monad.assertZero(Monad.plus(zero, zero));
3910	>	{
3911	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3912	>	Monad.unit(8L));
3913	>	// non-determinism
3914	>	assertTrue(f.get() == 5L || f.get() == 8L);
3915	>	}
3916	>
3917	>	CompletableFuture<Long> godot = new CompletableFuture<>();
3918	>	// f plus godot === f (doesn't wait for godot)
3919	>	Monad.assertFutureEquals(Monad.unit(5L),
3920	>	Monad.plus(Monad.unit(5L), godot));
3921	>	// godot plus f === f (doesn't wait for godot)
3922	>	Monad.assertFutureEquals(Monad.unit(5L),
3923	>	Monad.plus(godot, Monad.unit(5L)));
3924	>	}
3925	>
3926	>	//     static <U> U join(CompletionStage<U> stage) {
3927	>	//         CompletableFuture<U> f = new CompletableFuture<>();
3928	>	//         stage.whenComplete((v, ex) -> {
3929	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3930	>	//         });
3931	>	//         return f.join();
3932	>	//     }
3933	>
3934	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
3935	>	//         CompletableFuture<U> f = new CompletableFuture<>();
3936	>	//         stage.whenComplete((v, ex) -> {
3937	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3938	>	//         });
3939	>	//         return f.isDone();
3940	>	//     }
3941	>
3942	>	//     static <U> U join2(CompletionStage<U> stage) {
3943	>	//         return stage.toCompletableFuture().copy().join();
3944	>	//     }
3945	>
3946	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3947	>	//         return stage.toCompletableFuture().copy().isDone();
3948	>	//     }
3949
3950		}

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