41 |
|
import java.util.function.Predicate; |
42 |
|
import java.util.function.Supplier; |
43 |
|
|
44 |
– |
import junit.framework.AssertionFailedError; |
44 |
|
import junit.framework.Test; |
45 |
|
import junit.framework.TestSuite; |
46 |
|
|
58 |
|
void checkIncomplete(CompletableFuture<?> f) { |
59 |
|
assertFalse(f.isDone()); |
60 |
|
assertFalse(f.isCancelled()); |
61 |
< |
assertTrue(f.toString().contains("Not completed")); |
61 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
62 |
> |
|
63 |
> |
Object result = null; |
64 |
|
try { |
65 |
< |
assertNull(f.getNow(null)); |
65 |
> |
result = f.getNow(null); |
66 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
67 |
+ |
assertNull(result); |
68 |
+ |
|
69 |
|
try { |
70 |
< |
f.get(0L, SECONDS); |
70 |
> |
f.get(randomExpiredTimeout(), randomTimeUnit()); |
71 |
|
shouldThrow(); |
72 |
|
} |
73 |
|
catch (TimeoutException success) {} |
74 |
|
catch (Throwable fail) { threadUnexpectedException(fail); } |
75 |
|
} |
76 |
|
|
77 |
< |
<T> void checkCompletedNormally(CompletableFuture<T> f, T value) { |
78 |
< |
checkTimedGet(f, value); |
77 |
> |
<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) { |
78 |
> |
checkTimedGet(f, expectedValue); |
79 |
|
|
80 |
+ |
assertEquals(expectedValue, f.join()); |
81 |
+ |
assertEquals(expectedValue, f.getNow(null)); |
82 |
+ |
|
83 |
+ |
T result = null; |
84 |
|
try { |
85 |
< |
assertEquals(value, f.join()); |
79 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
80 |
< |
try { |
81 |
< |
assertEquals(value, f.getNow(null)); |
82 |
< |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
83 |
< |
try { |
84 |
< |
assertEquals(value, f.get()); |
85 |
> |
result = f.get(); |
86 |
|
} catch (Throwable fail) { threadUnexpectedException(fail); } |
87 |
+ |
assertEquals(expectedValue, result); |
88 |
+ |
|
89 |
|
assertTrue(f.isDone()); |
90 |
|
assertFalse(f.isCancelled()); |
91 |
|
assertFalse(f.isCompletedExceptionally()); |
92 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
92 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
93 |
|
} |
94 |
|
|
95 |
|
/** |
96 |
|
* Returns the "raw" internal exceptional completion of f, |
97 |
|
* without any additional wrapping with CompletionException. |
98 |
|
*/ |
99 |
< |
<U> Throwable exceptionalCompletion(CompletableFuture<U> f) { |
100 |
< |
// handle (and whenComplete) can distinguish between "direct" |
101 |
< |
// and "wrapped" exceptional completion |
102 |
< |
return f.handle((U u, Throwable t) -> t).join(); |
99 |
> |
Throwable exceptionalCompletion(CompletableFuture<?> f) { |
100 |
> |
// handle (and whenComplete and exceptionally) can distinguish |
101 |
> |
// between "direct" and "wrapped" exceptional completion |
102 |
> |
return f.handle((u, t) -> t).join(); |
103 |
|
} |
104 |
|
|
105 |
|
void checkCompletedExceptionally(CompletableFuture<?> f, |
145 |
|
assertFalse(f.isCancelled()); |
146 |
|
assertTrue(f.isDone()); |
147 |
|
assertTrue(f.isCompletedExceptionally()); |
148 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
148 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
149 |
|
} |
150 |
|
|
151 |
|
void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
152 |
|
checkCompletedExceptionally(f, true, |
153 |
< |
(t) -> assertTrue(t instanceof CFException)); |
153 |
> |
t -> assertTrue(t instanceof CFException)); |
154 |
|
} |
155 |
|
|
156 |
|
void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
157 |
|
checkCompletedExceptionally(f, true, |
158 |
< |
(t) -> assertTrue(t instanceof CancellationException)); |
158 |
> |
t -> assertTrue(t instanceof CancellationException)); |
159 |
|
} |
160 |
|
|
161 |
|
void checkCompletedWithTimeoutException(CompletableFuture<?> f) { |
162 |
|
checkCompletedExceptionally(f, false, |
163 |
< |
(t) -> assertTrue(t instanceof TimeoutException)); |
163 |
> |
t -> assertTrue(t instanceof TimeoutException)); |
164 |
|
} |
165 |
|
|
166 |
|
void checkCompletedWithWrappedException(CompletableFuture<?> f, |
167 |
|
Throwable ex) { |
168 |
< |
checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex)); |
168 |
> |
checkCompletedExceptionally(f, true, t -> assertSame(t, ex)); |
169 |
|
} |
170 |
|
|
171 |
|
void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) { |
172 |
< |
checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex)); |
172 |
> |
checkCompletedExceptionally(f, false, t -> assertSame(t, ex)); |
173 |
|
} |
174 |
|
|
175 |
|
void checkCancelled(CompletableFuture<?> f) { |
200 |
|
assertTrue(f.isDone()); |
201 |
|
assertTrue(f.isCompletedExceptionally()); |
202 |
|
assertTrue(f.isCancelled()); |
203 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
203 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
204 |
|
} |
205 |
|
|
206 |
|
/** |
299 |
|
} |
300 |
|
|
301 |
|
f = new CompletableFuture<>(); |
302 |
< |
f.completeExceptionally(ex = new CFException()); |
302 |
> |
f.completeExceptionally(new CFException()); |
303 |
|
f.obtrudeValue(v1); |
304 |
|
checkCompletedNormally(f, v1); |
305 |
|
f.obtrudeException(ex = new CFException()); |
336 |
|
/** |
337 |
|
* toString indicates current completion state |
338 |
|
*/ |
339 |
< |
public void testToString() { |
340 |
< |
CompletableFuture<String> f; |
341 |
< |
|
342 |
< |
f = new CompletableFuture<String>(); |
343 |
< |
assertTrue(f.toString().contains("[Not completed]")); |
339 |
> |
public void testToString_incomplete() { |
340 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
341 |
> |
assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]")); |
342 |
> |
if (testImplementationDetails) |
343 |
> |
assertEquals(identityString(f) + "[Not completed]", |
344 |
> |
f.toString()); |
345 |
> |
} |
346 |
|
|
347 |
+ |
public void testToString_normal() { |
348 |
+ |
CompletableFuture<String> f = new CompletableFuture<>(); |
349 |
|
assertTrue(f.complete("foo")); |
350 |
< |
assertTrue(f.toString().contains("[Completed normally]")); |
350 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]")); |
351 |
> |
if (testImplementationDetails) |
352 |
> |
assertEquals(identityString(f) + "[Completed normally]", |
353 |
> |
f.toString()); |
354 |
> |
} |
355 |
|
|
356 |
< |
f = new CompletableFuture<String>(); |
356 |
> |
public void testToString_exception() { |
357 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
358 |
|
assertTrue(f.completeExceptionally(new IndexOutOfBoundsException())); |
359 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
359 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
360 |
> |
if (testImplementationDetails) |
361 |
> |
assertTrue(f.toString().startsWith( |
362 |
> |
identityString(f) + "[Completed exceptionally: ")); |
363 |
> |
} |
364 |
|
|
365 |
+ |
public void testToString_cancelled() { |
366 |
|
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
367 |
< |
f = new CompletableFuture<String>(); |
367 |
> |
CompletableFuture<String> f = new CompletableFuture<>(); |
368 |
|
assertTrue(f.cancel(mayInterruptIfRunning)); |
369 |
< |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
369 |
> |
assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]")); |
370 |
> |
if (testImplementationDetails) |
371 |
> |
assertTrue(f.toString().startsWith( |
372 |
> |
identityString(f) + "[Completed exceptionally: ")); |
373 |
|
} |
374 |
|
} |
375 |
|
|
551 |
|
public CompletableFuture<Integer> apply(Integer x) { |
552 |
|
invoked(); |
553 |
|
value = x; |
554 |
< |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
555 |
< |
assertTrue(f.complete(inc(x))); |
556 |
< |
return f; |
554 |
> |
return CompletableFuture.completedFuture(inc(x)); |
555 |
> |
} |
556 |
> |
} |
557 |
> |
|
558 |
> |
static class FailingExceptionalCompletableFutureFunction extends CheckedAction |
559 |
> |
implements Function<Throwable, CompletableFuture<Integer>> |
560 |
> |
{ |
561 |
> |
final CFException ex; |
562 |
> |
FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); } |
563 |
> |
public CompletableFuture<Integer> apply(Throwable x) { |
564 |
> |
invoked(); |
565 |
> |
throw ex; |
566 |
> |
} |
567 |
> |
} |
568 |
> |
|
569 |
> |
static class ExceptionalCompletableFutureFunction extends CheckedAction |
570 |
> |
implements Function<Throwable, CompletionStage<Integer>> { |
571 |
> |
final Integer value = 3; |
572 |
> |
ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); } |
573 |
> |
public CompletionStage<Integer> apply(Throwable x) { |
574 |
> |
invoked(); |
575 |
> |
return CompletableFuture.completedFuture(value); |
576 |
|
} |
577 |
|
} |
578 |
|
|
691 |
|
Function<? super T,U> a) { |
692 |
|
return f.applyToEither(g, a); |
693 |
|
} |
694 |
+ |
public <T> CompletableFuture<T> exceptionally |
695 |
+ |
(CompletableFuture<T> f, |
696 |
+ |
Function<Throwable, ? extends T> fn) { |
697 |
+ |
return f.exceptionally(fn); |
698 |
+ |
} |
699 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
700 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
701 |
+ |
return f.exceptionallyCompose(fn); |
702 |
+ |
} |
703 |
|
}, |
656 |
– |
|
704 |
|
ASYNC { |
705 |
|
public void checkExecutionMode() { |
706 |
|
assertEquals(defaultExecutorIsCommonPool, |
773 |
|
Function<? super T,U> a) { |
774 |
|
return f.applyToEitherAsync(g, a); |
775 |
|
} |
776 |
+ |
public <T> CompletableFuture<T> exceptionally |
777 |
+ |
(CompletableFuture<T> f, |
778 |
+ |
Function<Throwable, ? extends T> fn) { |
779 |
+ |
return f.exceptionallyAsync(fn); |
780 |
+ |
} |
781 |
+ |
|
782 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
783 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
784 |
+ |
return f.exceptionallyComposeAsync(fn); |
785 |
+ |
} |
786 |
+ |
|
787 |
|
}, |
788 |
|
|
789 |
|
EXECUTOR { |
857 |
|
Function<? super T,U> a) { |
858 |
|
return f.applyToEitherAsync(g, a, new ThreadExecutor()); |
859 |
|
} |
860 |
+ |
public <T> CompletableFuture<T> exceptionally |
861 |
+ |
(CompletableFuture<T> f, |
862 |
+ |
Function<Throwable, ? extends T> fn) { |
863 |
+ |
return f.exceptionallyAsync(fn, new ThreadExecutor()); |
864 |
+ |
} |
865 |
+ |
public <T> CompletableFuture<T> exceptionallyCompose |
866 |
+ |
(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) { |
867 |
+ |
return f.exceptionallyComposeAsync(fn, new ThreadExecutor()); |
868 |
+ |
} |
869 |
+ |
|
870 |
|
}; |
871 |
|
|
872 |
|
public abstract void checkExecutionMode(); |
909 |
|
(CompletableFuture<T> f, |
910 |
|
CompletionStage<? extends T> g, |
911 |
|
Function<? super T,U> a); |
912 |
+ |
public abstract <T> CompletableFuture<T> exceptionally |
913 |
+ |
(CompletableFuture<T> f, |
914 |
+ |
Function<Throwable, ? extends T> fn); |
915 |
+ |
public abstract <T> CompletableFuture<T> exceptionallyCompose |
916 |
+ |
(CompletableFuture<T> f, |
917 |
+ |
Function<Throwable, ? extends CompletionStage<T>> fn); |
918 |
|
} |
919 |
|
|
920 |
|
/** |
922 |
|
* normally, and source result is propagated |
923 |
|
*/ |
924 |
|
public void testExceptionally_normalCompletion() { |
925 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
926 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
927 |
|
for (Integer v1 : new Integer[] { 1, null }) |
928 |
|
{ |
854 |
– |
final AtomicInteger a = new AtomicInteger(0); |
929 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
930 |
|
if (!createIncomplete) assertTrue(f.complete(v1)); |
931 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
932 |
< |
((Throwable t) -> { |
859 |
< |
a.getAndIncrement(); |
931 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
932 |
> |
(f, (Throwable t) -> { |
933 |
|
threadFail("should not be called"); |
934 |
|
return null; // unreached |
935 |
|
}); |
937 |
|
|
938 |
|
checkCompletedNormally(g, v1); |
939 |
|
checkCompletedNormally(f, v1); |
867 |
– |
assertEquals(0, a.get()); |
940 |
|
}} |
941 |
|
|
942 |
|
/** |
944 |
|
* exception |
945 |
|
*/ |
946 |
|
public void testExceptionally_exceptionalCompletion() { |
947 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
948 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
949 |
|
for (Integer v1 : new Integer[] { 1, null }) |
950 |
|
{ |
952 |
|
final CFException ex = new CFException(); |
953 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
954 |
|
if (!createIncomplete) f.completeExceptionally(ex); |
955 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
956 |
< |
((Throwable t) -> { |
957 |
< |
ExecutionMode.SYNC.checkExecutionMode(); |
955 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
956 |
> |
(f, (Throwable t) -> { |
957 |
> |
m.checkExecutionMode(); |
958 |
|
threadAssertSame(t, ex); |
959 |
|
a.getAndIncrement(); |
960 |
|
return v1; |
970 |
|
* exceptionally with that exception |
971 |
|
*/ |
972 |
|
public void testExceptionally_exceptionalCompletionActionFailed() { |
973 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
974 |
|
for (boolean createIncomplete : new boolean[] { true, false }) |
975 |
|
{ |
976 |
|
final AtomicInteger a = new AtomicInteger(0); |
978 |
|
final CFException ex2 = new CFException(); |
979 |
|
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
980 |
|
if (!createIncomplete) f.completeExceptionally(ex1); |
981 |
< |
final CompletableFuture<Integer> g = f.exceptionally |
982 |
< |
((Throwable t) -> { |
983 |
< |
ExecutionMode.SYNC.checkExecutionMode(); |
981 |
> |
final CompletableFuture<Integer> g = m.exceptionally |
982 |
> |
(f, (Throwable t) -> { |
983 |
> |
m.checkExecutionMode(); |
984 |
|
threadAssertSame(t, ex1); |
985 |
|
a.getAndIncrement(); |
986 |
|
throw ex2; |
1316 |
|
r.assertInvoked(); |
1317 |
|
}} |
1318 |
|
|
1319 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1320 |
|
public void testRunAsync_rejectingExecutor() { |
1321 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1322 |
|
try { |
1363 |
|
r.assertInvoked(); |
1364 |
|
}} |
1365 |
|
|
1366 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
1367 |
|
public void testSupplyAsync_rejectingExecutor() { |
1368 |
|
CountingRejectingExecutor e = new CountingRejectingExecutor(); |
1369 |
|
try { |
2638 |
|
|
2639 |
|
// unspecified behavior - both source completions available |
2640 |
|
try { |
2641 |
< |
assertEquals(null, h0.join()); |
2641 |
> |
assertNull(h0.join()); |
2642 |
|
rs[0].assertValue(v1); |
2643 |
|
} catch (CompletionException ok) { |
2644 |
|
checkCompletedWithWrappedException(h0, ex); |
2645 |
|
rs[0].assertNotInvoked(); |
2646 |
|
} |
2647 |
|
try { |
2648 |
< |
assertEquals(null, h1.join()); |
2648 |
> |
assertNull(h1.join()); |
2649 |
|
rs[1].assertValue(v1); |
2650 |
|
} catch (CompletionException ok) { |
2651 |
|
checkCompletedWithWrappedException(h1, ex); |
2652 |
|
rs[1].assertNotInvoked(); |
2653 |
|
} |
2654 |
|
try { |
2655 |
< |
assertEquals(null, h2.join()); |
2655 |
> |
assertNull(h2.join()); |
2656 |
|
rs[2].assertValue(v1); |
2657 |
|
} catch (CompletionException ok) { |
2658 |
|
checkCompletedWithWrappedException(h2, ex); |
2659 |
|
rs[2].assertNotInvoked(); |
2660 |
|
} |
2661 |
|
try { |
2662 |
< |
assertEquals(null, h3.join()); |
2662 |
> |
assertNull(h3.join()); |
2663 |
|
rs[3].assertValue(v1); |
2664 |
|
} catch (CompletionException ok) { |
2665 |
|
checkCompletedWithWrappedException(h3, ex); |
2898 |
|
|
2899 |
|
// unspecified behavior - both source completions available |
2900 |
|
try { |
2901 |
< |
assertEquals(null, h0.join()); |
2901 |
> |
assertNull(h0.join()); |
2902 |
|
rs[0].assertInvoked(); |
2903 |
|
} catch (CompletionException ok) { |
2904 |
|
checkCompletedWithWrappedException(h0, ex); |
2905 |
|
rs[0].assertNotInvoked(); |
2906 |
|
} |
2907 |
|
try { |
2908 |
< |
assertEquals(null, h1.join()); |
2908 |
> |
assertNull(h1.join()); |
2909 |
|
rs[1].assertInvoked(); |
2910 |
|
} catch (CompletionException ok) { |
2911 |
|
checkCompletedWithWrappedException(h1, ex); |
2912 |
|
rs[1].assertNotInvoked(); |
2913 |
|
} |
2914 |
|
try { |
2915 |
< |
assertEquals(null, h2.join()); |
2915 |
> |
assertNull(h2.join()); |
2916 |
|
rs[2].assertInvoked(); |
2917 |
|
} catch (CompletionException ok) { |
2918 |
|
checkCompletedWithWrappedException(h2, ex); |
2919 |
|
rs[2].assertNotInvoked(); |
2920 |
|
} |
2921 |
|
try { |
2922 |
< |
assertEquals(null, h3.join()); |
2922 |
> |
assertNull(h3.join()); |
2923 |
|
rs[3].assertInvoked(); |
2924 |
|
} catch (CompletionException ok) { |
2925 |
|
checkCompletedWithWrappedException(h3, ex); |
3151 |
|
checkCompletedNormally(f, v1); |
3152 |
|
}} |
3153 |
|
|
3154 |
+ |
/** |
3155 |
+ |
* exceptionallyCompose result completes normally after normal |
3156 |
+ |
* completion of source |
3157 |
+ |
*/ |
3158 |
+ |
public void testExceptionallyCompose_normalCompletion() { |
3159 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3160 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3161 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3162 |
+ |
{ |
3163 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3164 |
+ |
final ExceptionalCompletableFutureFunction r = |
3165 |
+ |
new ExceptionalCompletableFutureFunction(m); |
3166 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
3167 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3168 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
3169 |
+ |
|
3170 |
+ |
checkCompletedNormally(f, v1); |
3171 |
+ |
checkCompletedNormally(g, v1); |
3172 |
+ |
r.assertNotInvoked(); |
3173 |
+ |
}} |
3174 |
+ |
|
3175 |
+ |
/** |
3176 |
+ |
* exceptionallyCompose result completes normally after exceptional |
3177 |
+ |
* completion of source |
3178 |
+ |
*/ |
3179 |
+ |
public void testExceptionallyCompose_exceptionalCompletion() { |
3180 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3181 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3182 |
+ |
{ |
3183 |
+ |
final CFException ex = new CFException(); |
3184 |
+ |
final ExceptionalCompletableFutureFunction r = |
3185 |
+ |
new ExceptionalCompletableFutureFunction(m); |
3186 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3187 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3188 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3189 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
3190 |
+ |
|
3191 |
+ |
checkCompletedExceptionally(f, ex); |
3192 |
+ |
checkCompletedNormally(g, r.value); |
3193 |
+ |
r.assertInvoked(); |
3194 |
+ |
}} |
3195 |
+ |
|
3196 |
+ |
/** |
3197 |
+ |
* exceptionallyCompose completes exceptionally on exception if action does |
3198 |
+ |
*/ |
3199 |
+ |
public void testExceptionallyCompose_actionFailed() { |
3200 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3201 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
3202 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3203 |
+ |
{ |
3204 |
+ |
final CFException ex = new CFException(); |
3205 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3206 |
+ |
final FailingExceptionalCompletableFutureFunction r |
3207 |
+ |
= new FailingExceptionalCompletableFutureFunction(m); |
3208 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3209 |
+ |
final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r); |
3210 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
3211 |
+ |
|
3212 |
+ |
checkCompletedExceptionally(f, ex); |
3213 |
+ |
checkCompletedWithWrappedException(g, r.ex); |
3214 |
+ |
r.assertInvoked(); |
3215 |
+ |
}} |
3216 |
+ |
|
3217 |
+ |
/** |
3218 |
+ |
* thenComposeExceptionally result completes exceptionally if the |
3219 |
+ |
* result of the action does |
3220 |
+ |
*/ |
3221 |
+ |
public void testExceptionallyCompose_actionReturnsFailingFuture() { |
3222 |
+ |
for (ExecutionMode m : ExecutionMode.values()) |
3223 |
+ |
for (int order = 0; order < 6; order++) |
3224 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
3225 |
+ |
{ |
3226 |
+ |
final CFException ex0 = new CFException(); |
3227 |
+ |
final CFException ex = new CFException(); |
3228 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
3229 |
+ |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
3230 |
+ |
final CompletableFuture<Integer> h; |
3231 |
+ |
// Test all permutations of orders |
3232 |
+ |
switch (order) { |
3233 |
+ |
case 0: |
3234 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3235 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3236 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3237 |
+ |
break; |
3238 |
+ |
case 1: |
3239 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3240 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3241 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3242 |
+ |
break; |
3243 |
+ |
case 2: |
3244 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3245 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3246 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3247 |
+ |
break; |
3248 |
+ |
case 3: |
3249 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3250 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3251 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3252 |
+ |
break; |
3253 |
+ |
case 4: |
3254 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3255 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3256 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3257 |
+ |
break; |
3258 |
+ |
case 5: |
3259 |
+ |
h = m.exceptionallyCompose(f, (x -> g)); |
3260 |
+ |
assertTrue(f.completeExceptionally(ex0)); |
3261 |
+ |
assertTrue(g.completeExceptionally(ex)); |
3262 |
+ |
break; |
3263 |
+ |
default: throw new AssertionError(); |
3264 |
+ |
} |
3265 |
+ |
|
3266 |
+ |
checkCompletedExceptionally(g, ex); |
3267 |
+ |
checkCompletedWithWrappedException(h, ex); |
3268 |
+ |
checkCompletedExceptionally(f, ex0); |
3269 |
+ |
}} |
3270 |
+ |
|
3271 |
|
// other static methods |
3272 |
|
|
3273 |
|
/** |
3431 |
|
/** |
3432 |
|
* Completion methods throw NullPointerException with null arguments |
3433 |
|
*/ |
3434 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
3435 |
|
public void testNPE() { |
3436 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3437 |
|
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3451 |
|
|
3452 |
|
() -> f.thenApply(null), |
3453 |
|
() -> f.thenApplyAsync(null), |
3454 |
< |
() -> f.thenApplyAsync((x) -> x, null), |
3454 |
> |
() -> f.thenApplyAsync(x -> x, null), |
3455 |
|
() -> f.thenApplyAsync(null, exec), |
3456 |
|
|
3457 |
|
() -> f.thenAccept(null), |
3458 |
|
() -> f.thenAcceptAsync(null), |
3459 |
< |
() -> f.thenAcceptAsync((x) -> {} , null), |
3459 |
> |
() -> f.thenAcceptAsync(x -> {} , null), |
3460 |
|
() -> f.thenAcceptAsync(null, exec), |
3461 |
|
|
3462 |
|
() -> f.thenRun(null), |
3491 |
|
() -> f.applyToEither(g, null), |
3492 |
|
() -> f.applyToEitherAsync(g, null), |
3493 |
|
() -> f.applyToEitherAsync(g, null, exec), |
3494 |
< |
() -> f.applyToEither(nullFuture, (x) -> x), |
3495 |
< |
() -> f.applyToEitherAsync(nullFuture, (x) -> x), |
3496 |
< |
() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec), |
3497 |
< |
() -> f.applyToEitherAsync(g, (x) -> x, null), |
3494 |
> |
() -> f.applyToEither(nullFuture, x -> x), |
3495 |
> |
() -> f.applyToEitherAsync(nullFuture, x -> x), |
3496 |
> |
() -> f.applyToEitherAsync(nullFuture, x -> x, exec), |
3497 |
> |
() -> f.applyToEitherAsync(g, x -> x, null), |
3498 |
|
|
3499 |
|
() -> f.acceptEither(g, null), |
3500 |
|
() -> f.acceptEitherAsync(g, null), |
3501 |
|
() -> f.acceptEitherAsync(g, null, exec), |
3502 |
< |
() -> f.acceptEither(nullFuture, (x) -> {}), |
3503 |
< |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}), |
3504 |
< |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec), |
3505 |
< |
() -> f.acceptEitherAsync(g, (x) -> {}, null), |
3502 |
> |
() -> f.acceptEither(nullFuture, x -> {}), |
3503 |
> |
() -> f.acceptEitherAsync(nullFuture, x -> {}), |
3504 |
> |
() -> f.acceptEitherAsync(nullFuture, x -> {}, exec), |
3505 |
> |
() -> f.acceptEitherAsync(g, x -> {}, null), |
3506 |
|
|
3507 |
|
() -> f.runAfterEither(g, null), |
3508 |
|
() -> f.runAfterEitherAsync(g, null), |
3568 |
|
for (CompletableFuture<Integer> src : srcs) { |
3569 |
|
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3570 |
|
fs.add(src.thenRunAsync(() -> {}, e)); |
3571 |
< |
fs.add(src.thenAcceptAsync((z) -> {}, e)); |
3572 |
< |
fs.add(src.thenApplyAsync((z) -> z, e)); |
3571 |
> |
fs.add(src.thenAcceptAsync(z -> {}, e)); |
3572 |
> |
fs.add(src.thenApplyAsync(z -> z, e)); |
3573 |
|
|
3574 |
|
fs.add(src.thenCombineAsync(src, (x, y) -> x, e)); |
3575 |
|
fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e)); |
3576 |
|
fs.add(src.runAfterBothAsync(src, () -> {}, e)); |
3577 |
|
|
3578 |
< |
fs.add(src.applyToEitherAsync(src, (z) -> z, e)); |
3579 |
< |
fs.add(src.acceptEitherAsync(src, (z) -> {}, e)); |
3578 |
> |
fs.add(src.applyToEitherAsync(src, z -> z, e)); |
3579 |
> |
fs.add(src.acceptEitherAsync(src, z -> {}, e)); |
3580 |
|
fs.add(src.runAfterEitherAsync(src, () -> {}, e)); |
3581 |
|
|
3582 |
< |
fs.add(src.thenComposeAsync((z) -> null, e)); |
3582 |
> |
fs.add(src.thenComposeAsync(z -> null, e)); |
3583 |
|
fs.add(src.whenCompleteAsync((z, t) -> {}, e)); |
3584 |
|
fs.add(src.handleAsync((z, t) -> null, e)); |
3585 |
|
|
3612 |
|
{ |
3613 |
|
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3614 |
|
|
3615 |
< |
fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e)); |
3616 |
< |
fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e)); |
3615 |
> |
fs.add(complete.applyToEitherAsync(incomplete, z -> z, e)); |
3616 |
> |
fs.add(incomplete.applyToEitherAsync(complete, z -> z, e)); |
3617 |
|
|
3618 |
< |
fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e)); |
3619 |
< |
fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e)); |
3618 |
> |
fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e)); |
3619 |
> |
fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e)); |
3620 |
|
|
3621 |
|
fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e)); |
3622 |
|
fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e)); |
3655 |
|
|
3656 |
|
List<CompletableFuture<?>> fs = new ArrayList<>(); |
3657 |
|
fs.add(incomplete.thenRunAsync(() -> {}, e)); |
3658 |
< |
fs.add(incomplete.thenAcceptAsync((z) -> {}, e)); |
3659 |
< |
fs.add(incomplete.thenApplyAsync((z) -> z, e)); |
3658 |
> |
fs.add(incomplete.thenAcceptAsync(z -> {}, e)); |
3659 |
> |
fs.add(incomplete.thenApplyAsync(z -> z, e)); |
3660 |
|
|
3661 |
|
fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e)); |
3662 |
|
fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e)); |
3663 |
|
fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e)); |
3664 |
|
|
3665 |
< |
fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e)); |
3666 |
< |
fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e)); |
3665 |
> |
fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e)); |
3666 |
> |
fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e)); |
3667 |
|
fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e)); |
3668 |
|
|
3669 |
< |
fs.add(incomplete.thenComposeAsync((z) -> null, e)); |
3669 |
> |
fs.add(incomplete.thenComposeAsync(z -> null, e)); |
3670 |
|
fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e)); |
3671 |
|
fs.add(incomplete.handleAsync((z, t) -> null, e)); |
3672 |
|
|
3726 |
|
*/ |
3727 |
|
public void testCompletedStage() { |
3728 |
|
AtomicInteger x = new AtomicInteger(0); |
3729 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3729 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3730 |
|
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3731 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3732 |
|
assertEquals(x.get(), 1); |
3771 |
|
* copy returns a CompletableFuture that is completed normally, |
3772 |
|
* with the same value, when source is. |
3773 |
|
*/ |
3774 |
< |
public void testCopy() { |
3774 |
> |
public void testCopy_normalCompletion() { |
3775 |
> |
for (boolean createIncomplete : new boolean[] { true, false }) |
3776 |
> |
for (Integer v1 : new Integer[] { 1, null }) |
3777 |
> |
{ |
3778 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3779 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
3780 |
|
CompletableFuture<Integer> g = f.copy(); |
3781 |
< |
checkIncomplete(f); |
3782 |
< |
checkIncomplete(g); |
3783 |
< |
f.complete(1); |
3784 |
< |
checkCompletedNormally(f, 1); |
3785 |
< |
checkCompletedNormally(g, 1); |
3786 |
< |
} |
3781 |
> |
if (createIncomplete) { |
3782 |
> |
checkIncomplete(f); |
3783 |
> |
checkIncomplete(g); |
3784 |
> |
assertTrue(f.complete(v1)); |
3785 |
> |
} |
3786 |
> |
checkCompletedNormally(f, v1); |
3787 |
> |
checkCompletedNormally(g, v1); |
3788 |
> |
}} |
3789 |
|
|
3790 |
|
/** |
3791 |
|
* copy returns a CompletableFuture that is completed exceptionally |
3792 |
|
* when source is. |
3793 |
|
*/ |
3794 |
< |
public void testCopy2() { |
3794 |
> |
public void testCopy_exceptionalCompletion() { |
3795 |
> |
for (boolean createIncomplete : new boolean[] { true, false }) |
3796 |
> |
{ |
3797 |
> |
CFException ex = new CFException(); |
3798 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3799 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
3800 |
|
CompletableFuture<Integer> g = f.copy(); |
3801 |
< |
checkIncomplete(f); |
3802 |
< |
checkIncomplete(g); |
3803 |
< |
CFException ex = new CFException(); |
3804 |
< |
f.completeExceptionally(ex); |
3801 |
> |
if (createIncomplete) { |
3802 |
> |
checkIncomplete(f); |
3803 |
> |
checkIncomplete(g); |
3804 |
> |
f.completeExceptionally(ex); |
3805 |
> |
} |
3806 |
|
checkCompletedExceptionally(f, ex); |
3807 |
|
checkCompletedWithWrappedException(g, ex); |
3808 |
+ |
}} |
3809 |
+ |
|
3810 |
+ |
/** |
3811 |
+ |
* Completion of a copy does not complete its source. |
3812 |
+ |
*/ |
3813 |
+ |
public void testCopy_oneWayPropagation() { |
3814 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3815 |
+ |
assertTrue(f.copy().complete(1)); |
3816 |
+ |
assertTrue(f.copy().complete(null)); |
3817 |
+ |
assertTrue(f.copy().cancel(true)); |
3818 |
+ |
assertTrue(f.copy().cancel(false)); |
3819 |
+ |
assertTrue(f.copy().completeExceptionally(new CFException())); |
3820 |
+ |
checkIncomplete(f); |
3821 |
|
} |
3822 |
|
|
3823 |
|
/** |
3828 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3829 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3830 |
|
AtomicInteger x = new AtomicInteger(0); |
3831 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3831 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3832 |
|
checkIncomplete(f); |
3833 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3834 |
|
f.complete(1); |
3845 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3846 |
|
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3847 |
|
AtomicInteger x = new AtomicInteger(0); |
3848 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3848 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3849 |
|
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3850 |
|
checkIncomplete(f); |
3851 |
|
CFException ex = new CFException(); |
3863 |
|
CFException ex = new CFException(); |
3864 |
|
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3865 |
|
AtomicInteger x = new AtomicInteger(0); |
3866 |
< |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3866 |
> |
AtomicReference<Throwable> r = new AtomicReference<>(); |
3867 |
|
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3868 |
|
assertEquals(x.get(), 0); |
3869 |
|
assertEquals(r.get(), ex); |
3887 |
|
public void testCompleteAsync2() { |
3888 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3889 |
|
CFException ex = new CFException(); |
3890 |
< |
f.completeAsync(() -> {if (true) throw ex; return 1;}); |
3890 |
> |
f.completeAsync(() -> { throw ex; }); |
3891 |
|
try { |
3892 |
|
f.join(); |
3893 |
|
shouldThrow(); |
3917 |
|
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3918 |
|
CFException ex = new CFException(); |
3919 |
|
ThreadExecutor executor = new ThreadExecutor(); |
3920 |
< |
f.completeAsync(() -> {if (true) throw ex; return 1;}, executor); |
3920 |
> |
f.completeAsync(() -> { throw ex; }, executor); |
3921 |
|
try { |
3922 |
|
f.join(); |
3923 |
|
shouldThrow(); |
4076 |
|
List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs |
4077 |
|
= new ArrayList<>(); |
4078 |
|
|
4079 |
< |
funs.add((y) -> m.thenRun(y, noopRunnable)); |
4080 |
< |
funs.add((y) -> m.thenAccept(y, noopConsumer)); |
4081 |
< |
funs.add((y) -> m.thenApply(y, incFunction)); |
4082 |
< |
|
4083 |
< |
funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable)); |
4084 |
< |
funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer)); |
4085 |
< |
funs.add((y) -> m.applyToEither(y, incomplete, incFunction)); |
4086 |
< |
|
4087 |
< |
funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable)); |
4088 |
< |
funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable)); |
4089 |
< |
funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); |
4090 |
< |
funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m))); |
4091 |
< |
funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m))); |
4092 |
< |
funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m))); |
4093 |
< |
|
4094 |
< |
funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {})); |
4095 |
< |
|
4096 |
< |
funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m))); |
4097 |
< |
|
4098 |
< |
funs.add((y) -> CompletableFuture.allOf(y)); |
4099 |
< |
funs.add((y) -> CompletableFuture.allOf(y, v42)); |
4100 |
< |
funs.add((y) -> CompletableFuture.allOf(v42, y)); |
4101 |
< |
funs.add((y) -> CompletableFuture.anyOf(y)); |
4102 |
< |
funs.add((y) -> CompletableFuture.anyOf(y, incomplete)); |
4103 |
< |
funs.add((y) -> CompletableFuture.anyOf(incomplete, y)); |
4079 |
> |
funs.add(y -> m.thenRun(y, noopRunnable)); |
4080 |
> |
funs.add(y -> m.thenAccept(y, noopConsumer)); |
4081 |
> |
funs.add(y -> m.thenApply(y, incFunction)); |
4082 |
> |
|
4083 |
> |
funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable)); |
4084 |
> |
funs.add(y -> m.acceptEither(y, incomplete, noopConsumer)); |
4085 |
> |
funs.add(y -> m.applyToEither(y, incomplete, incFunction)); |
4086 |
> |
|
4087 |
> |
funs.add(y -> m.runAfterBoth(y, v42, noopRunnable)); |
4088 |
> |
funs.add(y -> m.runAfterBoth(v42, y, noopRunnable)); |
4089 |
> |
funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); |
4090 |
> |
funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m))); |
4091 |
> |
funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m))); |
4092 |
> |
funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m))); |
4093 |
> |
|
4094 |
> |
funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {})); |
4095 |
> |
|
4096 |
> |
funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m))); |
4097 |
> |
|
4098 |
> |
funs.add(y -> CompletableFuture.allOf(y)); |
4099 |
> |
funs.add(y -> CompletableFuture.allOf(y, v42)); |
4100 |
> |
funs.add(y -> CompletableFuture.allOf(v42, y)); |
4101 |
> |
funs.add(y -> CompletableFuture.anyOf(y)); |
4102 |
> |
funs.add(y -> CompletableFuture.anyOf(y, incomplete)); |
4103 |
> |
funs.add(y -> CompletableFuture.anyOf(incomplete, y)); |
4104 |
|
|
4105 |
|
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
4106 |
|
fun : funs) { |
4157 |
|
public void testMinimalCompletionStage_minimality() { |
4158 |
|
if (!testImplementationDetails) return; |
4159 |
|
Function<Method, String> toSignature = |
4160 |
< |
(method) -> method.getName() + Arrays.toString(method.getParameterTypes()); |
4160 |
> |
method -> method.getName() + Arrays.toString(method.getParameterTypes()); |
4161 |
|
Predicate<Method> isNotStatic = |
4162 |
< |
(method) -> (method.getModifiers() & Modifier.STATIC) == 0; |
4162 |
> |
method -> (method.getModifiers() & Modifier.STATIC) == 0; |
4163 |
|
List<Method> minimalMethods = |
4164 |
|
Stream.of(Object.class, CompletionStage.class) |
4165 |
< |
.flatMap((klazz) -> Stream.of(klazz.getMethods())) |
4165 |
> |
.flatMap(klazz -> Stream.of(klazz.getMethods())) |
4166 |
|
.filter(isNotStatic) |
4167 |
|
.collect(Collectors.toList()); |
4168 |
|
// Methods from CompletableFuture permitted NOT to throw UOE |
4178 |
|
.collect(Collectors.toSet()); |
4179 |
|
List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods()) |
4180 |
|
.filter(isNotStatic) |
4181 |
< |
.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method))) |
4181 |
> |
.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method))) |
4182 |
|
.collect(Collectors.toList()); |
4183 |
|
|
4184 |
|
List<CompletionStage<Integer>> stages = new ArrayList<>(); |
4185 |
< |
stages.add(new CompletableFuture<Integer>().minimalCompletionStage()); |
4185 |
> |
CompletionStage<Integer> min = |
4186 |
> |
new CompletableFuture<Integer>().minimalCompletionStage(); |
4187 |
> |
stages.add(min); |
4188 |
> |
stages.add(min.thenApply(x -> x)); |
4189 |
|
stages.add(CompletableFuture.completedStage(1)); |
4190 |
|
stages.add(CompletableFuture.failedStage(new CFException())); |
4191 |
|
|
4221 |
|
throw new Error("Methods did not throw UOE: " + bugs); |
4222 |
|
} |
4223 |
|
|
4224 |
+ |
/** |
4225 |
+ |
* minimalStage.toCompletableFuture() returns a CompletableFuture that |
4226 |
+ |
* is completed normally, with the same value, when source is. |
4227 |
+ |
*/ |
4228 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() { |
4229 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4230 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4231 |
+ |
{ |
4232 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4233 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4234 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4235 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4236 |
+ |
if (createIncomplete) { |
4237 |
+ |
checkIncomplete(f); |
4238 |
+ |
checkIncomplete(g); |
4239 |
+ |
assertTrue(f.complete(v1)); |
4240 |
+ |
} |
4241 |
+ |
checkCompletedNormally(f, v1); |
4242 |
+ |
checkCompletedNormally(g, v1); |
4243 |
+ |
}} |
4244 |
+ |
|
4245 |
+ |
/** |
4246 |
+ |
* minimalStage.toCompletableFuture() returns a CompletableFuture that |
4247 |
+ |
* is completed exceptionally when source is. |
4248 |
+ |
*/ |
4249 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() { |
4250 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4251 |
+ |
{ |
4252 |
+ |
CFException ex = new CFException(); |
4253 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4254 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4255 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4256 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4257 |
+ |
if (createIncomplete) { |
4258 |
+ |
checkIncomplete(f); |
4259 |
+ |
checkIncomplete(g); |
4260 |
+ |
f.completeExceptionally(ex); |
4261 |
+ |
} |
4262 |
+ |
checkCompletedExceptionally(f, ex); |
4263 |
+ |
checkCompletedWithWrappedException(g, ex); |
4264 |
+ |
}} |
4265 |
+ |
|
4266 |
+ |
/** |
4267 |
+ |
* minimalStage.toCompletableFuture() gives mutable CompletableFuture |
4268 |
+ |
*/ |
4269 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_mutable() { |
4270 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4271 |
+ |
{ |
4272 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4273 |
+ |
CompletionStage minimal = f.minimalCompletionStage(); |
4274 |
+ |
CompletableFuture<Integer> g = minimal.toCompletableFuture(); |
4275 |
+ |
assertTrue(g.complete(v1)); |
4276 |
+ |
checkCompletedNormally(g, v1); |
4277 |
+ |
checkIncomplete(f); |
4278 |
+ |
checkIncomplete(minimal.toCompletableFuture()); |
4279 |
+ |
}} |
4280 |
+ |
|
4281 |
+ |
/** |
4282 |
+ |
* minimalStage.toCompletableFuture().join() awaits completion |
4283 |
+ |
*/ |
4284 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception { |
4285 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4286 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4287 |
+ |
{ |
4288 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4289 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4290 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4291 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4292 |
+ |
assertEquals(v1, minimal.toCompletableFuture().join()); |
4293 |
+ |
assertEquals(v1, minimal.toCompletableFuture().get()); |
4294 |
+ |
checkCompletedNormally(minimal.toCompletableFuture(), v1); |
4295 |
+ |
}} |
4296 |
+ |
|
4297 |
+ |
/** |
4298 |
+ |
* Completion of a toCompletableFuture copy of a minimal stage |
4299 |
+ |
* does not complete its source. |
4300 |
+ |
*/ |
4301 |
+ |
public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() { |
4302 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4303 |
+ |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
4304 |
+ |
assertTrue(g.toCompletableFuture().complete(1)); |
4305 |
+ |
assertTrue(g.toCompletableFuture().complete(null)); |
4306 |
+ |
assertTrue(g.toCompletableFuture().cancel(true)); |
4307 |
+ |
assertTrue(g.toCompletableFuture().cancel(false)); |
4308 |
+ |
assertTrue(g.toCompletableFuture().completeExceptionally(new CFException())); |
4309 |
+ |
checkIncomplete(g.toCompletableFuture()); |
4310 |
+ |
f.complete(1); |
4311 |
+ |
checkCompletedNormally(g.toCompletableFuture(), 1); |
4312 |
+ |
} |
4313 |
+ |
|
4314 |
+ |
/** Demo utility method for external reliable toCompletableFuture */ |
4315 |
+ |
static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) { |
4316 |
+ |
CompletableFuture<T> f = new CompletableFuture<>(); |
4317 |
+ |
stage.handle((T t, Throwable ex) -> { |
4318 |
+ |
if (ex != null) f.completeExceptionally(ex); |
4319 |
+ |
else f.complete(t); |
4320 |
+ |
return null; |
4321 |
+ |
}); |
4322 |
+ |
return f; |
4323 |
+ |
} |
4324 |
+ |
|
4325 |
+ |
/** Demo utility method to join a CompletionStage */ |
4326 |
+ |
static <T> T join(CompletionStage<T> stage) { |
4327 |
+ |
return toCompletableFuture(stage).join(); |
4328 |
+ |
} |
4329 |
+ |
|
4330 |
+ |
/** |
4331 |
+ |
* Joining a minimal stage "by hand" works |
4332 |
+ |
*/ |
4333 |
+ |
public void testMinimalCompletionStage_join_by_hand() { |
4334 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4335 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4336 |
+ |
{ |
4337 |
+ |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
4338 |
+ |
CompletionStage<Integer> minimal = f.minimalCompletionStage(); |
4339 |
+ |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
4340 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4341 |
+ |
minimal.thenAccept(x -> g.complete(x)); |
4342 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4343 |
+ |
g.join(); |
4344 |
+ |
checkCompletedNormally(g, v1); |
4345 |
+ |
checkCompletedNormally(f, v1); |
4346 |
+ |
assertEquals(v1, join(minimal)); |
4347 |
+ |
}} |
4348 |
+ |
|
4349 |
|
static class Monad { |
4350 |
|
static class ZeroException extends RuntimeException { |
4351 |
|
public ZeroException() { super("monadic zero"); } |
4362 |
|
static <T,U,V> Function<T, CompletableFuture<V>> compose |
4363 |
|
(Function<T, CompletableFuture<U>> f, |
4364 |
|
Function<U, CompletableFuture<V>> g) { |
4365 |
< |
return (x) -> f.apply(x).thenCompose(g); |
4365 |
> |
return x -> f.apply(x).thenCompose(g); |
4366 |
|
} |
4367 |
|
|
4368 |
|
static void assertZero(CompletableFuture<?> f) { |
4369 |
|
try { |
4370 |
|
f.getNow(null); |
4371 |
< |
throw new AssertionFailedError("should throw"); |
4371 |
> |
throw new AssertionError("should throw"); |
4372 |
|
} catch (CompletionException success) { |
4373 |
|
assertTrue(success.getCause() instanceof ZeroException); |
4374 |
|
} |
4442 |
|
|
4443 |
|
// Some mutually non-commutative functions |
4444 |
|
Function<Long, CompletableFuture<Long>> triple |
4445 |
< |
= (x) -> Monad.unit(3 * x); |
4445 |
> |
= x -> Monad.unit(3 * x); |
4446 |
|
Function<Long, CompletableFuture<Long>> inc |
4447 |
< |
= (x) -> Monad.unit(x + 1); |
4447 |
> |
= x -> Monad.unit(x + 1); |
4448 |
|
|
4449 |
|
// unit is a right identity: m >>= unit === m |
4450 |
|
Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit), |
4456 |
|
// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) ) |
4457 |
|
Monad.assertFutureEquals( |
4458 |
|
unit.apply(5L).thenCompose(inc).thenCompose(triple), |
4459 |
< |
unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple))); |
4459 |
> |
unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple))); |
4460 |
|
|
4461 |
|
// The case for CompletableFuture as an additive monad is weaker... |
4462 |
|
|
4466 |
|
// left zero: zero >>= f === zero |
4467 |
|
Monad.assertZero(zero.thenCompose(inc)); |
4468 |
|
// right zero: f >>= (\x -> zero) === zero |
4469 |
< |
Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero)); |
4469 |
> |
Monad.assertZero(inc.apply(5L).thenCompose(x -> zero)); |
4470 |
|
|
4471 |
|
// f plus zero === f |
4472 |
|
Monad.assertFutureEquals(Monad.unit(5L), |
4493 |
|
} |
4494 |
|
|
4495 |
|
/** Test long recursive chains of CompletableFutures with cascading completions */ |
4496 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4497 |
|
public void testRecursiveChains() throws Throwable { |
4498 |
|
for (ExecutionMode m : ExecutionMode.values()) |
4499 |
|
for (boolean addDeadEnds : new boolean[] { true, false }) |
4518 |
|
* A single CompletableFuture with many dependents. |
4519 |
|
* A demo of scalability - runtime is O(n). |
4520 |
|
*/ |
4521 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4522 |
|
public void testManyDependents() throws Throwable { |
4523 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4524 |
|
final CompletableFuture<Void> head = new CompletableFuture<>(); |
4526 |
|
final AtomicInteger count = new AtomicInteger(0); |
4527 |
|
for (int i = 0; i < n; i++) { |
4528 |
|
head.thenRun(() -> count.getAndIncrement()); |
4529 |
< |
head.thenAccept((x) -> count.getAndIncrement()); |
4530 |
< |
head.thenApply((x) -> count.getAndIncrement()); |
4529 |
> |
head.thenAccept(x -> count.getAndIncrement()); |
4530 |
> |
head.thenApply(x -> count.getAndIncrement()); |
4531 |
|
|
4532 |
|
head.runAfterBoth(complete, () -> count.getAndIncrement()); |
4533 |
|
head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement()); |
4537 |
|
complete.thenCombine(head, (x, y) -> count.getAndIncrement()); |
4538 |
|
|
4539 |
|
head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement()); |
4540 |
< |
head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement()); |
4541 |
< |
head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement()); |
4540 |
> |
head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement()); |
4541 |
> |
head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement()); |
4542 |
|
new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement()); |
4543 |
< |
new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement()); |
4544 |
< |
new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement()); |
4543 |
> |
new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement()); |
4544 |
> |
new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement()); |
4545 |
|
} |
4546 |
|
head.complete(null); |
4547 |
|
assertEquals(5 * 3 * n, count.get()); |
4548 |
|
} |
4549 |
|
|
4550 |
|
/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */ |
4551 |
+ |
@SuppressWarnings("FutureReturnValueIgnored") |
4552 |
|
public void testCoCompletionGarbageRetention() throws Throwable { |
4553 |
|
final int n = expensiveTests ? 1_000_000 : 10; |
4554 |
|
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
4559 |
|
f.complete(null); |
4560 |
|
|
4561 |
|
f = new CompletableFuture<>(); |
4562 |
< |
f.acceptEither(incomplete, (x) -> {}); |
4562 |
> |
f.acceptEither(incomplete, x -> {}); |
4563 |
|
f.complete(null); |
4564 |
|
|
4565 |
|
f = new CompletableFuture<>(); |
4566 |
< |
f.applyToEither(incomplete, (x) -> x); |
4566 |
> |
f.applyToEither(incomplete, x -> x); |
4567 |
|
f.complete(null); |
4568 |
|
|
4569 |
|
f = new CompletableFuture<>(); |
4570 |
< |
CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete }); |
4570 |
> |
CompletableFuture.anyOf(f, incomplete); |
4571 |
|
f.complete(null); |
4572 |
|
} |
4573 |
|
|
4577 |
|
f.complete(null); |
4578 |
|
|
4579 |
|
f = new CompletableFuture<>(); |
4580 |
< |
incomplete.acceptEither(f, (x) -> {}); |
4580 |
> |
incomplete.acceptEither(f, x -> {}); |
4581 |
|
f.complete(null); |
4582 |
|
|
4583 |
|
f = new CompletableFuture<>(); |
4584 |
< |
incomplete.applyToEither(f, (x) -> x); |
4584 |
> |
incomplete.applyToEither(f, x -> x); |
4585 |
|
f.complete(null); |
4586 |
|
|
4587 |
|
f = new CompletableFuture<>(); |
4588 |
< |
CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f }); |
4588 |
> |
CompletableFuture.anyOf(incomplete, f); |
4589 |
|
f.complete(null); |
4590 |
|
} |
4591 |
|
} |
4639 |
|
assertTrue(neverCompleted.thenRun(() -> {}).cancel(true)); |
4640 |
|
} |
4641 |
|
|
4642 |
+ |
/** |
4643 |
+ |
* Checks for garbage retention when MinimalStage.toCompletableFuture() |
4644 |
+ |
* is invoked many times. |
4645 |
+ |
* 8161600: Garbage retention when source CompletableFutures are never completed |
4646 |
+ |
* |
4647 |
+ |
* As of 2016-07, fails with OOME: |
4648 |
+ |
* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck |
4649 |
+ |
*/ |
4650 |
+ |
public void testToCompletableFutureGarbageRetention() throws Throwable { |
4651 |
+ |
final int n = expensiveTests ? 900_000 : 10; |
4652 |
+ |
CompletableFuture<Integer> neverCompleted = new CompletableFuture<>(); |
4653 |
+ |
CompletionStage minimal = neverCompleted.minimalCompletionStage(); |
4654 |
+ |
for (int i = 0; i < n; i++) |
4655 |
+ |
assertTrue(minimal.toCompletableFuture().cancel(true)); |
4656 |
+ |
} |
4657 |
+ |
|
4658 |
|
// static <U> U join(CompletionStage<U> stage) { |
4659 |
|
// CompletableFuture<U> f = new CompletableFuture<>(); |
4660 |
|
// stage.whenComplete((v, ex) -> { |
4679 |
|
// return stage.toCompletableFuture().copy().isDone(); |
4680 |
|
// } |
4681 |
|
|
4682 |
+ |
// For testing default implementations |
4683 |
+ |
// Only non-default interface methods defined. |
4684 |
+ |
static final class DelegatedCompletionStage<T> implements CompletionStage<T> { |
4685 |
+ |
final CompletableFuture<T> cf; |
4686 |
+ |
DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; } |
4687 |
+ |
public CompletableFuture<T> toCompletableFuture() { |
4688 |
+ |
return cf; } |
4689 |
+ |
public CompletionStage<Void> thenRun |
4690 |
+ |
(Runnable action) { |
4691 |
+ |
return cf.thenRun(action); } |
4692 |
+ |
public CompletionStage<Void> thenRunAsync |
4693 |
+ |
(Runnable action) { |
4694 |
+ |
return cf.thenRunAsync(action); } |
4695 |
+ |
public CompletionStage<Void> thenRunAsync |
4696 |
+ |
(Runnable action, |
4697 |
+ |
Executor executor) { |
4698 |
+ |
return cf.thenRunAsync(action, executor); } |
4699 |
+ |
public CompletionStage<Void> thenAccept |
4700 |
+ |
(Consumer<? super T> action) { |
4701 |
+ |
return cf.thenAccept(action); } |
4702 |
+ |
public CompletionStage<Void> thenAcceptAsync |
4703 |
+ |
(Consumer<? super T> action) { |
4704 |
+ |
return cf.thenAcceptAsync(action); } |
4705 |
+ |
public CompletionStage<Void> thenAcceptAsync |
4706 |
+ |
(Consumer<? super T> action, |
4707 |
+ |
Executor executor) { |
4708 |
+ |
return cf.thenAcceptAsync(action, executor); } |
4709 |
+ |
public <U> CompletionStage<U> thenApply |
4710 |
+ |
(Function<? super T,? extends U> a) { |
4711 |
+ |
return cf.thenApply(a); } |
4712 |
+ |
public <U> CompletionStage<U> thenApplyAsync |
4713 |
+ |
(Function<? super T,? extends U> fn) { |
4714 |
+ |
return cf.thenApplyAsync(fn); } |
4715 |
+ |
public <U> CompletionStage<U> thenApplyAsync |
4716 |
+ |
(Function<? super T,? extends U> fn, |
4717 |
+ |
Executor executor) { |
4718 |
+ |
return cf.thenApplyAsync(fn, executor); } |
4719 |
+ |
public <U,V> CompletionStage<V> thenCombine |
4720 |
+ |
(CompletionStage<? extends U> other, |
4721 |
+ |
BiFunction<? super T,? super U,? extends V> fn) { |
4722 |
+ |
return cf.thenCombine(other, fn); } |
4723 |
+ |
public <U,V> CompletionStage<V> thenCombineAsync |
4724 |
+ |
(CompletionStage<? extends U> other, |
4725 |
+ |
BiFunction<? super T,? super U,? extends V> fn) { |
4726 |
+ |
return cf.thenCombineAsync(other, fn); } |
4727 |
+ |
public <U,V> CompletionStage<V> thenCombineAsync |
4728 |
+ |
(CompletionStage<? extends U> other, |
4729 |
+ |
BiFunction<? super T,? super U,? extends V> fn, |
4730 |
+ |
Executor executor) { |
4731 |
+ |
return cf.thenCombineAsync(other, fn, executor); } |
4732 |
+ |
public <U> CompletionStage<Void> thenAcceptBoth |
4733 |
+ |
(CompletionStage<? extends U> other, |
4734 |
+ |
BiConsumer<? super T, ? super U> action) { |
4735 |
+ |
return cf.thenAcceptBoth(other, action); } |
4736 |
+ |
public <U> CompletionStage<Void> thenAcceptBothAsync |
4737 |
+ |
(CompletionStage<? extends U> other, |
4738 |
+ |
BiConsumer<? super T, ? super U> action) { |
4739 |
+ |
return cf.thenAcceptBothAsync(other, action); } |
4740 |
+ |
public <U> CompletionStage<Void> thenAcceptBothAsync |
4741 |
+ |
(CompletionStage<? extends U> other, |
4742 |
+ |
BiConsumer<? super T, ? super U> action, |
4743 |
+ |
Executor executor) { |
4744 |
+ |
return cf.thenAcceptBothAsync(other, action, executor); } |
4745 |
+ |
public CompletionStage<Void> runAfterBoth |
4746 |
+ |
(CompletionStage<?> other, |
4747 |
+ |
Runnable action) { |
4748 |
+ |
return cf.runAfterBoth(other, action); } |
4749 |
+ |
public CompletionStage<Void> runAfterBothAsync |
4750 |
+ |
(CompletionStage<?> other, |
4751 |
+ |
Runnable action) { |
4752 |
+ |
return cf.runAfterBothAsync(other, action); } |
4753 |
+ |
public CompletionStage<Void> runAfterBothAsync |
4754 |
+ |
(CompletionStage<?> other, |
4755 |
+ |
Runnable action, |
4756 |
+ |
Executor executor) { |
4757 |
+ |
return cf.runAfterBothAsync(other, action, executor); } |
4758 |
+ |
public <U> CompletionStage<U> applyToEither |
4759 |
+ |
(CompletionStage<? extends T> other, |
4760 |
+ |
Function<? super T, U> fn) { |
4761 |
+ |
return cf.applyToEither(other, fn); } |
4762 |
+ |
public <U> CompletionStage<U> applyToEitherAsync |
4763 |
+ |
(CompletionStage<? extends T> other, |
4764 |
+ |
Function<? super T, U> fn) { |
4765 |
+ |
return cf.applyToEitherAsync(other, fn); } |
4766 |
+ |
public <U> CompletionStage<U> applyToEitherAsync |
4767 |
+ |
(CompletionStage<? extends T> other, |
4768 |
+ |
Function<? super T, U> fn, |
4769 |
+ |
Executor executor) { |
4770 |
+ |
return cf.applyToEitherAsync(other, fn, executor); } |
4771 |
+ |
public CompletionStage<Void> acceptEither |
4772 |
+ |
(CompletionStage<? extends T> other, |
4773 |
+ |
Consumer<? super T> action) { |
4774 |
+ |
return cf.acceptEither(other, action); } |
4775 |
+ |
public CompletionStage<Void> acceptEitherAsync |
4776 |
+ |
(CompletionStage<? extends T> other, |
4777 |
+ |
Consumer<? super T> action) { |
4778 |
+ |
return cf.acceptEitherAsync(other, action); } |
4779 |
+ |
public CompletionStage<Void> acceptEitherAsync |
4780 |
+ |
(CompletionStage<? extends T> other, |
4781 |
+ |
Consumer<? super T> action, |
4782 |
+ |
Executor executor) { |
4783 |
+ |
return cf.acceptEitherAsync(other, action, executor); } |
4784 |
+ |
public CompletionStage<Void> runAfterEither |
4785 |
+ |
(CompletionStage<?> other, |
4786 |
+ |
Runnable action) { |
4787 |
+ |
return cf.runAfterEither(other, action); } |
4788 |
+ |
public CompletionStage<Void> runAfterEitherAsync |
4789 |
+ |
(CompletionStage<?> other, |
4790 |
+ |
Runnable action) { |
4791 |
+ |
return cf.runAfterEitherAsync(other, action); } |
4792 |
+ |
public CompletionStage<Void> runAfterEitherAsync |
4793 |
+ |
(CompletionStage<?> other, |
4794 |
+ |
Runnable action, |
4795 |
+ |
Executor executor) { |
4796 |
+ |
return cf.runAfterEitherAsync(other, action, executor); } |
4797 |
+ |
public <U> CompletionStage<U> thenCompose |
4798 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn) { |
4799 |
+ |
return cf.thenCompose(fn); } |
4800 |
+ |
public <U> CompletionStage<U> thenComposeAsync |
4801 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn) { |
4802 |
+ |
return cf.thenComposeAsync(fn); } |
4803 |
+ |
public <U> CompletionStage<U> thenComposeAsync |
4804 |
+ |
(Function<? super T, ? extends CompletionStage<U>> fn, |
4805 |
+ |
Executor executor) { |
4806 |
+ |
return cf.thenComposeAsync(fn, executor); } |
4807 |
+ |
public <U> CompletionStage<U> handle |
4808 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn) { |
4809 |
+ |
return cf.handle(fn); } |
4810 |
+ |
public <U> CompletionStage<U> handleAsync |
4811 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn) { |
4812 |
+ |
return cf.handleAsync(fn); } |
4813 |
+ |
public <U> CompletionStage<U> handleAsync |
4814 |
+ |
(BiFunction<? super T, Throwable, ? extends U> fn, |
4815 |
+ |
Executor executor) { |
4816 |
+ |
return cf.handleAsync(fn, executor); } |
4817 |
+ |
public CompletionStage<T> whenComplete |
4818 |
+ |
(BiConsumer<? super T, ? super Throwable> action) { |
4819 |
+ |
return cf.whenComplete(action); } |
4820 |
+ |
public CompletionStage<T> whenCompleteAsync |
4821 |
+ |
(BiConsumer<? super T, ? super Throwable> action) { |
4822 |
+ |
return cf.whenCompleteAsync(action); } |
4823 |
+ |
public CompletionStage<T> whenCompleteAsync |
4824 |
+ |
(BiConsumer<? super T, ? super Throwable> action, |
4825 |
+ |
Executor executor) { |
4826 |
+ |
return cf.whenCompleteAsync(action, executor); } |
4827 |
+ |
public CompletionStage<T> exceptionally |
4828 |
+ |
(Function<Throwable, ? extends T> fn) { |
4829 |
+ |
return cf.exceptionally(fn); } |
4830 |
+ |
} |
4831 |
+ |
|
4832 |
+ |
/** |
4833 |
+ |
* default-implemented exceptionallyAsync action is not invoked when |
4834 |
+ |
* source completes normally, and source result is propagated |
4835 |
+ |
*/ |
4836 |
+ |
public void testDefaultExceptionallyAsync_normalCompletion() { |
4837 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4838 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4839 |
+ |
{ |
4840 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4841 |
+ |
final DelegatedCompletionStage<Integer> d = |
4842 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4843 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4844 |
+ |
final CompletionStage<Integer> g = d.exceptionallyAsync |
4845 |
+ |
((Throwable t) -> { |
4846 |
+ |
threadFail("should not be called"); |
4847 |
+ |
return null; // unreached |
4848 |
+ |
}); |
4849 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4850 |
+ |
|
4851 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4852 |
+ |
}} |
4853 |
+ |
|
4854 |
+ |
/** |
4855 |
+ |
* default-implemented exceptionallyAsync action completes with |
4856 |
+ |
* function value on source exception |
4857 |
+ |
*/ |
4858 |
+ |
public void testDefaultExceptionallyAsync_exceptionalCompletion() { |
4859 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4860 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4861 |
+ |
{ |
4862 |
+ |
final AtomicInteger a = new AtomicInteger(0); |
4863 |
+ |
final CFException ex = new CFException(); |
4864 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4865 |
+ |
final DelegatedCompletionStage<Integer> d = |
4866 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4867 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4868 |
+ |
final CompletionStage<Integer> g = d.exceptionallyAsync |
4869 |
+ |
((Throwable t) -> { |
4870 |
+ |
threadAssertSame(t, ex); |
4871 |
+ |
a.getAndIncrement(); |
4872 |
+ |
return v1; |
4873 |
+ |
}); |
4874 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4875 |
+ |
|
4876 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4877 |
+ |
assertEquals(1, a.get()); |
4878 |
+ |
}} |
4879 |
+ |
|
4880 |
+ |
/** |
4881 |
+ |
* Under default implementation, if an "exceptionally action" |
4882 |
+ |
* throws an exception, it completes exceptionally with that |
4883 |
+ |
* exception |
4884 |
+ |
*/ |
4885 |
+ |
public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() { |
4886 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4887 |
+ |
{ |
4888 |
+ |
final AtomicInteger a = new AtomicInteger(0); |
4889 |
+ |
final CFException ex1 = new CFException(); |
4890 |
+ |
final CFException ex2 = new CFException(); |
4891 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4892 |
+ |
final DelegatedCompletionStage<Integer> d = |
4893 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4894 |
+ |
if (!createIncomplete) f.completeExceptionally(ex1); |
4895 |
+ |
final CompletionStage<Integer> g = d.exceptionallyAsync |
4896 |
+ |
((Throwable t) -> { |
4897 |
+ |
threadAssertSame(t, ex1); |
4898 |
+ |
a.getAndIncrement(); |
4899 |
+ |
throw ex2; |
4900 |
+ |
}); |
4901 |
+ |
if (createIncomplete) f.completeExceptionally(ex1); |
4902 |
+ |
|
4903 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), ex2); |
4904 |
+ |
checkCompletedExceptionally(f, ex1); |
4905 |
+ |
checkCompletedExceptionally(d.toCompletableFuture(), ex1); |
4906 |
+ |
assertEquals(1, a.get()); |
4907 |
+ |
}} |
4908 |
+ |
|
4909 |
+ |
/** |
4910 |
+ |
* default exceptionallyCompose result completes normally after normal |
4911 |
+ |
* completion of source |
4912 |
+ |
*/ |
4913 |
+ |
public void testDefaultExceptionallyCompose_normalCompletion() { |
4914 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4915 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4916 |
+ |
{ |
4917 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4918 |
+ |
final ExceptionalCompletableFutureFunction r = |
4919 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4920 |
+ |
final DelegatedCompletionStage<Integer> d = |
4921 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4922 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4923 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4924 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4925 |
+ |
|
4926 |
+ |
checkCompletedNormally(f, v1); |
4927 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4928 |
+ |
r.assertNotInvoked(); |
4929 |
+ |
}} |
4930 |
+ |
|
4931 |
+ |
/** |
4932 |
+ |
* default-implemented exceptionallyCompose result completes |
4933 |
+ |
* normally after exceptional completion of source |
4934 |
+ |
*/ |
4935 |
+ |
public void testDefaultExceptionallyCompose_exceptionalCompletion() { |
4936 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4937 |
+ |
{ |
4938 |
+ |
final CFException ex = new CFException(); |
4939 |
+ |
final ExceptionalCompletableFutureFunction r = |
4940 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4941 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4942 |
+ |
final DelegatedCompletionStage<Integer> d = |
4943 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4944 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4945 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4946 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4947 |
+ |
|
4948 |
+ |
checkCompletedExceptionally(f, ex); |
4949 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
4950 |
+ |
r.assertInvoked(); |
4951 |
+ |
}} |
4952 |
+ |
|
4953 |
+ |
/** |
4954 |
+ |
* default-implemented exceptionallyCompose completes |
4955 |
+ |
* exceptionally on exception if action does |
4956 |
+ |
*/ |
4957 |
+ |
public void testDefaultExceptionallyCompose_actionFailed() { |
4958 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4959 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4960 |
+ |
{ |
4961 |
+ |
final CFException ex = new CFException(); |
4962 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4963 |
+ |
final FailingExceptionalCompletableFutureFunction r |
4964 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC); |
4965 |
+ |
final DelegatedCompletionStage<Integer> d = |
4966 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4967 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
4968 |
+ |
final CompletionStage<Integer> g = d.exceptionallyCompose(r); |
4969 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
4970 |
+ |
|
4971 |
+ |
checkCompletedExceptionally(f, ex); |
4972 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
4973 |
+ |
r.assertInvoked(); |
4974 |
+ |
}} |
4975 |
+ |
|
4976 |
+ |
/** |
4977 |
+ |
* default exceptionallyComposeAsync result completes normally after normal |
4978 |
+ |
* completion of source |
4979 |
+ |
*/ |
4980 |
+ |
public void testDefaultExceptionallyComposeAsync_normalCompletion() { |
4981 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
4982 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
4983 |
+ |
{ |
4984 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
4985 |
+ |
final ExceptionalCompletableFutureFunction r = |
4986 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
4987 |
+ |
final DelegatedCompletionStage<Integer> d = |
4988 |
+ |
new DelegatedCompletionStage<Integer>(f); |
4989 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
4990 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
4991 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
4992 |
+ |
|
4993 |
+ |
checkCompletedNormally(f, v1); |
4994 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
4995 |
+ |
r.assertNotInvoked(); |
4996 |
+ |
}} |
4997 |
+ |
|
4998 |
+ |
/** |
4999 |
+ |
* default-implemented exceptionallyComposeAsync result completes |
5000 |
+ |
* normally after exceptional completion of source |
5001 |
+ |
*/ |
5002 |
+ |
public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() { |
5003 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5004 |
+ |
{ |
5005 |
+ |
final CFException ex = new CFException(); |
5006 |
+ |
final ExceptionalCompletableFutureFunction r = |
5007 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
5008 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5009 |
+ |
final DelegatedCompletionStage<Integer> d = |
5010 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5011 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5012 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
5013 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5014 |
+ |
|
5015 |
+ |
checkCompletedExceptionally(f, ex); |
5016 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
5017 |
+ |
r.assertInvoked(); |
5018 |
+ |
}} |
5019 |
+ |
|
5020 |
+ |
/** |
5021 |
+ |
* default-implemented exceptionallyComposeAsync completes |
5022 |
+ |
* exceptionally on exception if action does |
5023 |
+ |
*/ |
5024 |
+ |
public void testDefaultExceptionallyComposeAsync_actionFailed() { |
5025 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5026 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
5027 |
+ |
{ |
5028 |
+ |
final CFException ex = new CFException(); |
5029 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5030 |
+ |
final FailingExceptionalCompletableFutureFunction r |
5031 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC); |
5032 |
+ |
final DelegatedCompletionStage<Integer> d = |
5033 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5034 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5035 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r); |
5036 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5037 |
+ |
|
5038 |
+ |
checkCompletedExceptionally(f, ex); |
5039 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
5040 |
+ |
r.assertInvoked(); |
5041 |
+ |
}} |
5042 |
+ |
|
5043 |
+ |
|
5044 |
+ |
/** |
5045 |
+ |
* default exceptionallyComposeAsync result completes normally after normal |
5046 |
+ |
* completion of source |
5047 |
+ |
*/ |
5048 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() { |
5049 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5050 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
5051 |
+ |
{ |
5052 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5053 |
+ |
final ExceptionalCompletableFutureFunction r = |
5054 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
5055 |
+ |
final DelegatedCompletionStage<Integer> d = |
5056 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5057 |
+ |
if (!createIncomplete) assertTrue(f.complete(v1)); |
5058 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
5059 |
+ |
if (createIncomplete) assertTrue(f.complete(v1)); |
5060 |
+ |
|
5061 |
+ |
checkCompletedNormally(f, v1); |
5062 |
+ |
checkCompletedNormally(g.toCompletableFuture(), v1); |
5063 |
+ |
r.assertNotInvoked(); |
5064 |
+ |
}} |
5065 |
+ |
|
5066 |
+ |
/** |
5067 |
+ |
* default-implemented exceptionallyComposeAsync result completes |
5068 |
+ |
* normally after exceptional completion of source |
5069 |
+ |
*/ |
5070 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() { |
5071 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5072 |
+ |
{ |
5073 |
+ |
final CFException ex = new CFException(); |
5074 |
+ |
final ExceptionalCompletableFutureFunction r = |
5075 |
+ |
new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
5076 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5077 |
+ |
final DelegatedCompletionStage<Integer> d = |
5078 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5079 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5080 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
5081 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5082 |
+ |
|
5083 |
+ |
checkCompletedExceptionally(f, ex); |
5084 |
+ |
checkCompletedNormally(g.toCompletableFuture(), r.value); |
5085 |
+ |
r.assertInvoked(); |
5086 |
+ |
}} |
5087 |
+ |
|
5088 |
+ |
/** |
5089 |
+ |
* default-implemented exceptionallyComposeAsync completes |
5090 |
+ |
* exceptionally on exception if action does |
5091 |
+ |
*/ |
5092 |
+ |
public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() { |
5093 |
+ |
for (boolean createIncomplete : new boolean[] { true, false }) |
5094 |
+ |
for (Integer v1 : new Integer[] { 1, null }) |
5095 |
+ |
{ |
5096 |
+ |
final CFException ex = new CFException(); |
5097 |
+ |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
5098 |
+ |
final FailingExceptionalCompletableFutureFunction r |
5099 |
+ |
= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR); |
5100 |
+ |
final DelegatedCompletionStage<Integer> d = |
5101 |
+ |
new DelegatedCompletionStage<Integer>(f); |
5102 |
+ |
if (!createIncomplete) f.completeExceptionally(ex); |
5103 |
+ |
final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor()); |
5104 |
+ |
if (createIncomplete) f.completeExceptionally(ex); |
5105 |
+ |
|
5106 |
+ |
checkCompletedExceptionally(f, ex); |
5107 |
+ |
checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex); |
5108 |
+ |
r.assertInvoked(); |
5109 |
+ |
}} |
5110 |
+ |
|
5111 |
|
} |