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/* |
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* Written by Doug Lea and Martin Buchholz with assistance from |
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* members of JCP JSR-166 Expert Group and released to the public |
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* domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.lang.reflect.Method; |
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import java.lang.reflect.Modifier; |
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|
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import java.util.stream.Collectors; |
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import java.util.stream.Stream; |
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|
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.Objects; |
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import java.util.Set; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.CompletionException; |
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import java.util.concurrent.CompletionStage; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Executor; |
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import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.ForkJoinTask; |
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import java.util.concurrent.TimeoutException; |
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import java.util.concurrent.TimeUnit; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicReference; |
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import java.util.function.BiConsumer; |
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import java.util.function.BiFunction; |
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import java.util.function.Consumer; |
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import java.util.function.Function; |
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import java.util.function.Supplier; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class CompletableFutureTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(CompletableFutureTest.class); |
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} |
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|
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static class CFException extends RuntimeException {} |
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|
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void checkIncomplete(CompletableFuture<?> f) { |
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assertFalse(f.isDone()); |
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assertFalse(f.isCancelled()); |
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assertTrue(f.toString().contains("Not completed")); |
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try { |
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assertNull(f.getNow(null)); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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f.get(0L, SECONDS); |
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shouldThrow(); |
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} |
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catch (TimeoutException success) {} |
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catch (Throwable fail) { threadUnexpectedException(fail); } |
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} |
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|
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<T> void checkCompletedNormally(CompletableFuture<T> f, T value) { |
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checkTimedGet(f, value); |
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|
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try { |
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assertEquals(value, f.join()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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assertEquals(value, f.getNow(null)); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
79 |
try { |
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assertEquals(value, f.get()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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assertFalse(f.isCompletedExceptionally()); |
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assertTrue(f.toString().contains("[Completed normally]")); |
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} |
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|
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/** |
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* Returns the "raw" internal exceptional completion of f, |
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* without any additional wrapping with CompletionException. |
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*/ |
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<U> Throwable exceptionalCompletion(CompletableFuture<U> f) { |
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// handle (and whenComplete) can distinguish between "direct" |
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// and "wrapped" exceptional completion |
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return f.handle((U u, Throwable t) -> t).join(); |
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} |
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|
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void checkCompletedExceptionally(CompletableFuture<?> f, |
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boolean wrapped, |
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Consumer<Throwable> checker) { |
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Throwable cause = exceptionalCompletion(f); |
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if (wrapped) { |
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assertTrue(cause instanceof CompletionException); |
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cause = cause.getCause(); |
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} |
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checker.accept(cause); |
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|
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long startTime = System.nanoTime(); |
109 |
try { |
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f.get(LONG_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(cause, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
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|
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try { |
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f.join(); |
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shouldThrow(); |
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} catch (CompletionException success) { |
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assertSame(cause, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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f.getNow(null); |
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shouldThrow(); |
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} catch (CompletionException success) { |
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assertSame(cause, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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f.get(); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(cause, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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assertFalse(f.isCancelled()); |
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assertTrue(f.isDone()); |
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assertTrue(f.isCompletedExceptionally()); |
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assertTrue(f.toString().contains("[Completed exceptionally]")); |
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} |
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|
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void checkCompletedWithWrappedCFException(CompletableFuture<?> f) { |
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checkCompletedExceptionally(f, true, |
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(t) -> assertTrue(t instanceof CFException)); |
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} |
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|
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void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) { |
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checkCompletedExceptionally(f, true, |
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(t) -> assertTrue(t instanceof CancellationException)); |
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} |
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|
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void checkCompletedWithTimeoutException(CompletableFuture<?> f) { |
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checkCompletedExceptionally(f, false, |
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(t) -> assertTrue(t instanceof TimeoutException)); |
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} |
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|
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void checkCompletedWithWrappedException(CompletableFuture<?> f, |
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Throwable ex) { |
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checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex)); |
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} |
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|
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void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) { |
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checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex)); |
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} |
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|
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void checkCancelled(CompletableFuture<?> f) { |
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long startTime = System.nanoTime(); |
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try { |
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f.get(LONG_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
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|
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try { |
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f.join(); |
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shouldThrow(); |
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} catch (CancellationException success) {} |
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try { |
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f.getNow(null); |
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shouldThrow(); |
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} catch (CancellationException success) {} |
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try { |
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f.get(); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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assertTrue(exceptionalCompletion(f) instanceof CancellationException); |
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|
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assertTrue(f.isDone()); |
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assertTrue(f.isCompletedExceptionally()); |
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assertTrue(f.isCancelled()); |
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assertTrue(f.toString().contains("[Completed exceptionally]")); |
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} |
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|
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/** |
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* A newly constructed CompletableFuture is incomplete, as indicated |
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* by methods isDone, isCancelled, and getNow |
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*/ |
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public void testConstructor() { |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
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checkIncomplete(f); |
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} |
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|
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/** |
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* complete completes normally, as indicated by methods isDone, |
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* isCancelled, join, get, and getNow |
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*/ |
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public void testComplete() { |
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for (Integer v1 : new Integer[] { 1, null }) |
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{ |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
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checkIncomplete(f); |
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assertTrue(f.complete(v1)); |
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assertFalse(f.complete(v1)); |
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checkCompletedNormally(f, v1); |
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}} |
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|
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/** |
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* completeExceptionally completes exceptionally, as indicated by |
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* methods isDone, isCancelled, join, get, and getNow |
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*/ |
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public void testCompleteExceptionally() { |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
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CFException ex = new CFException(); |
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checkIncomplete(f); |
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f.completeExceptionally(ex); |
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checkCompletedExceptionally(f, ex); |
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} |
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|
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/** |
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* cancel completes exceptionally and reports cancelled, as indicated by |
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* methods isDone, isCancelled, join, get, and getNow |
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*/ |
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public void testCancel() { |
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for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
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{ |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
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checkIncomplete(f); |
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assertTrue(f.cancel(mayInterruptIfRunning)); |
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assertTrue(f.cancel(mayInterruptIfRunning)); |
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assertTrue(f.cancel(!mayInterruptIfRunning)); |
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checkCancelled(f); |
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}} |
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|
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/** |
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* obtrudeValue forces completion with given value |
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*/ |
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public void testObtrudeValue() { |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
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checkIncomplete(f); |
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assertTrue(f.complete(one)); |
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checkCompletedNormally(f, one); |
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f.obtrudeValue(three); |
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checkCompletedNormally(f, three); |
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f.obtrudeValue(two); |
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checkCompletedNormally(f, two); |
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f = new CompletableFuture<>(); |
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f.obtrudeValue(three); |
263 |
checkCompletedNormally(f, three); |
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f.obtrudeValue(null); |
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checkCompletedNormally(f, null); |
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f = new CompletableFuture<>(); |
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f.completeExceptionally(new CFException()); |
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f.obtrudeValue(four); |
269 |
checkCompletedNormally(f, four); |
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} |
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|
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/** |
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* obtrudeException forces completion with given exception |
274 |
*/ |
275 |
public void testObtrudeException() { |
276 |
for (Integer v1 : new Integer[] { 1, null }) |
277 |
{ |
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CFException ex; |
279 |
CompletableFuture<Integer> f; |
280 |
|
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f = new CompletableFuture<>(); |
282 |
assertTrue(f.complete(v1)); |
283 |
for (int i = 0; i < 2; i++) { |
284 |
f.obtrudeException(ex = new CFException()); |
285 |
checkCompletedExceptionally(f, ex); |
286 |
} |
287 |
|
288 |
f = new CompletableFuture<>(); |
289 |
for (int i = 0; i < 2; i++) { |
290 |
f.obtrudeException(ex = new CFException()); |
291 |
checkCompletedExceptionally(f, ex); |
292 |
} |
293 |
|
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f = new CompletableFuture<>(); |
295 |
f.completeExceptionally(ex = new CFException()); |
296 |
f.obtrudeValue(v1); |
297 |
checkCompletedNormally(f, v1); |
298 |
f.obtrudeException(ex = new CFException()); |
299 |
checkCompletedExceptionally(f, ex); |
300 |
f.completeExceptionally(new CFException()); |
301 |
checkCompletedExceptionally(f, ex); |
302 |
assertFalse(f.complete(v1)); |
303 |
checkCompletedExceptionally(f, ex); |
304 |
}} |
305 |
|
306 |
/** |
307 |
* getNumberOfDependents returns number of dependent tasks |
308 |
*/ |
309 |
public void testGetNumberOfDependents() { |
310 |
for (ExecutionMode m : ExecutionMode.values()) |
311 |
for (Integer v1 : new Integer[] { 1, null }) |
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{ |
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CompletableFuture<Integer> f = new CompletableFuture<>(); |
314 |
assertEquals(0, f.getNumberOfDependents()); |
315 |
final CompletableFuture<Void> g = m.thenRun(f, new Noop(m)); |
316 |
assertEquals(1, f.getNumberOfDependents()); |
317 |
assertEquals(0, g.getNumberOfDependents()); |
318 |
final CompletableFuture<Void> h = m.thenRun(f, new Noop(m)); |
319 |
assertEquals(2, f.getNumberOfDependents()); |
320 |
assertEquals(0, h.getNumberOfDependents()); |
321 |
assertTrue(f.complete(v1)); |
322 |
checkCompletedNormally(g, null); |
323 |
checkCompletedNormally(h, null); |
324 |
assertEquals(0, f.getNumberOfDependents()); |
325 |
assertEquals(0, g.getNumberOfDependents()); |
326 |
assertEquals(0, h.getNumberOfDependents()); |
327 |
}} |
328 |
|
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/** |
330 |
* toString indicates current completion state |
331 |
*/ |
332 |
public void testToString() { |
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CompletableFuture<String> f; |
334 |
|
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f = new CompletableFuture<String>(); |
336 |
assertTrue(f.toString().contains("[Not completed]")); |
337 |
|
338 |
assertTrue(f.complete("foo")); |
339 |
assertTrue(f.toString().contains("[Completed normally]")); |
340 |
|
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f = new CompletableFuture<String>(); |
342 |
assertTrue(f.completeExceptionally(new IndexOutOfBoundsException())); |
343 |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
344 |
|
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for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
346 |
f = new CompletableFuture<String>(); |
347 |
assertTrue(f.cancel(mayInterruptIfRunning)); |
348 |
assertTrue(f.toString().contains("[Completed exceptionally]")); |
349 |
} |
350 |
} |
351 |
|
352 |
/** |
353 |
* completedFuture returns a completed CompletableFuture with given value |
354 |
*/ |
355 |
public void testCompletedFuture() { |
356 |
CompletableFuture<String> f = CompletableFuture.completedFuture("test"); |
357 |
checkCompletedNormally(f, "test"); |
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} |
359 |
|
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abstract class CheckedAction { |
361 |
int invocationCount = 0; |
362 |
final ExecutionMode m; |
363 |
CheckedAction(ExecutionMode m) { this.m = m; } |
364 |
void invoked() { |
365 |
m.checkExecutionMode(); |
366 |
assertEquals(0, invocationCount++); |
367 |
} |
368 |
void assertNotInvoked() { assertEquals(0, invocationCount); } |
369 |
void assertInvoked() { assertEquals(1, invocationCount); } |
370 |
} |
371 |
|
372 |
abstract class CheckedIntegerAction extends CheckedAction { |
373 |
Integer value; |
374 |
CheckedIntegerAction(ExecutionMode m) { super(m); } |
375 |
void assertValue(Integer expected) { |
376 |
assertInvoked(); |
377 |
assertEquals(expected, value); |
378 |
} |
379 |
} |
380 |
|
381 |
class IntegerSupplier extends CheckedAction |
382 |
implements Supplier<Integer> |
383 |
{ |
384 |
final Integer value; |
385 |
IntegerSupplier(ExecutionMode m, Integer value) { |
386 |
super(m); |
387 |
this.value = value; |
388 |
} |
389 |
public Integer get() { |
390 |
invoked(); |
391 |
return value; |
392 |
} |
393 |
} |
394 |
|
395 |
// A function that handles and produces null values as well. |
396 |
static Integer inc(Integer x) { |
397 |
return (x == null) ? null : x + 1; |
398 |
} |
399 |
|
400 |
class NoopConsumer extends CheckedIntegerAction |
401 |
implements Consumer<Integer> |
402 |
{ |
403 |
NoopConsumer(ExecutionMode m) { super(m); } |
404 |
public void accept(Integer x) { |
405 |
invoked(); |
406 |
value = x; |
407 |
} |
408 |
} |
409 |
|
410 |
class IncFunction extends CheckedIntegerAction |
411 |
implements Function<Integer,Integer> |
412 |
{ |
413 |
IncFunction(ExecutionMode m) { super(m); } |
414 |
public Integer apply(Integer x) { |
415 |
invoked(); |
416 |
return value = inc(x); |
417 |
} |
418 |
} |
419 |
|
420 |
// Choose non-commutative actions for better coverage |
421 |
// A non-commutative function that handles and produces null values as well. |
422 |
static Integer subtract(Integer x, Integer y) { |
423 |
return (x == null && y == null) ? null : |
424 |
((x == null) ? 42 : x.intValue()) |
425 |
- ((y == null) ? 99 : y.intValue()); |
426 |
} |
427 |
|
428 |
class SubtractAction extends CheckedIntegerAction |
429 |
implements BiConsumer<Integer, Integer> |
430 |
{ |
431 |
SubtractAction(ExecutionMode m) { super(m); } |
432 |
public void accept(Integer x, Integer y) { |
433 |
invoked(); |
434 |
value = subtract(x, y); |
435 |
} |
436 |
} |
437 |
|
438 |
class SubtractFunction extends CheckedIntegerAction |
439 |
implements BiFunction<Integer, Integer, Integer> |
440 |
{ |
441 |
SubtractFunction(ExecutionMode m) { super(m); } |
442 |
public Integer apply(Integer x, Integer y) { |
443 |
invoked(); |
444 |
return value = subtract(x, y); |
445 |
} |
446 |
} |
447 |
|
448 |
class Noop extends CheckedAction implements Runnable { |
449 |
Noop(ExecutionMode m) { super(m); } |
450 |
public void run() { |
451 |
invoked(); |
452 |
} |
453 |
} |
454 |
|
455 |
class FailingSupplier extends CheckedAction |
456 |
implements Supplier<Integer> |
457 |
{ |
458 |
FailingSupplier(ExecutionMode m) { super(m); } |
459 |
public Integer get() { |
460 |
invoked(); |
461 |
throw new CFException(); |
462 |
} |
463 |
} |
464 |
|
465 |
class FailingConsumer extends CheckedIntegerAction |
466 |
implements Consumer<Integer> |
467 |
{ |
468 |
FailingConsumer(ExecutionMode m) { super(m); } |
469 |
public void accept(Integer x) { |
470 |
invoked(); |
471 |
value = x; |
472 |
throw new CFException(); |
473 |
} |
474 |
} |
475 |
|
476 |
class FailingBiConsumer extends CheckedIntegerAction |
477 |
implements BiConsumer<Integer, Integer> |
478 |
{ |
479 |
FailingBiConsumer(ExecutionMode m) { super(m); } |
480 |
public void accept(Integer x, Integer y) { |
481 |
invoked(); |
482 |
value = subtract(x, y); |
483 |
throw new CFException(); |
484 |
} |
485 |
} |
486 |
|
487 |
class FailingFunction extends CheckedIntegerAction |
488 |
implements Function<Integer, Integer> |
489 |
{ |
490 |
FailingFunction(ExecutionMode m) { super(m); } |
491 |
public Integer apply(Integer x) { |
492 |
invoked(); |
493 |
value = x; |
494 |
throw new CFException(); |
495 |
} |
496 |
} |
497 |
|
498 |
class FailingBiFunction extends CheckedIntegerAction |
499 |
implements BiFunction<Integer, Integer, Integer> |
500 |
{ |
501 |
FailingBiFunction(ExecutionMode m) { super(m); } |
502 |
public Integer apply(Integer x, Integer y) { |
503 |
invoked(); |
504 |
value = subtract(x, y); |
505 |
throw new CFException(); |
506 |
} |
507 |
} |
508 |
|
509 |
class FailingRunnable extends CheckedAction implements Runnable { |
510 |
FailingRunnable(ExecutionMode m) { super(m); } |
511 |
public void run() { |
512 |
invoked(); |
513 |
throw new CFException(); |
514 |
} |
515 |
} |
516 |
|
517 |
class CompletableFutureInc extends CheckedIntegerAction |
518 |
implements Function<Integer, CompletableFuture<Integer>> |
519 |
{ |
520 |
CompletableFutureInc(ExecutionMode m) { super(m); } |
521 |
public CompletableFuture<Integer> apply(Integer x) { |
522 |
invoked(); |
523 |
value = x; |
524 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
525 |
assertTrue(f.complete(inc(x))); |
526 |
return f; |
527 |
} |
528 |
} |
529 |
|
530 |
class FailingCompletableFutureFunction extends CheckedIntegerAction |
531 |
implements Function<Integer, CompletableFuture<Integer>> |
532 |
{ |
533 |
FailingCompletableFutureFunction(ExecutionMode m) { super(m); } |
534 |
public CompletableFuture<Integer> apply(Integer x) { |
535 |
invoked(); |
536 |
value = x; |
537 |
throw new CFException(); |
538 |
} |
539 |
} |
540 |
|
541 |
// Used for explicit executor tests |
542 |
static final class ThreadExecutor implements Executor { |
543 |
final AtomicInteger count = new AtomicInteger(0); |
544 |
static final ThreadGroup tg = new ThreadGroup("ThreadExecutor"); |
545 |
static boolean startedCurrentThread() { |
546 |
return Thread.currentThread().getThreadGroup() == tg; |
547 |
} |
548 |
|
549 |
public void execute(Runnable r) { |
550 |
count.getAndIncrement(); |
551 |
new Thread(tg, r).start(); |
552 |
} |
553 |
} |
554 |
|
555 |
static final boolean defaultExecutorIsCommonPool |
556 |
= ForkJoinPool.getCommonPoolParallelism() > 1; |
557 |
|
558 |
/** |
559 |
* Permits the testing of parallel code for the 3 different |
560 |
* execution modes without copy/pasting all the test methods. |
561 |
*/ |
562 |
enum ExecutionMode { |
563 |
SYNC { |
564 |
public void checkExecutionMode() { |
565 |
assertFalse(ThreadExecutor.startedCurrentThread()); |
566 |
assertNull(ForkJoinTask.getPool()); |
567 |
} |
568 |
public CompletableFuture<Void> runAsync(Runnable a) { |
569 |
throw new UnsupportedOperationException(); |
570 |
} |
571 |
public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) { |
572 |
throw new UnsupportedOperationException(); |
573 |
} |
574 |
public <T> CompletableFuture<Void> thenRun |
575 |
(CompletableFuture<T> f, Runnable a) { |
576 |
return f.thenRun(a); |
577 |
} |
578 |
public <T> CompletableFuture<Void> thenAccept |
579 |
(CompletableFuture<T> f, Consumer<? super T> a) { |
580 |
return f.thenAccept(a); |
581 |
} |
582 |
public <T,U> CompletableFuture<U> thenApply |
583 |
(CompletableFuture<T> f, Function<? super T,U> a) { |
584 |
return f.thenApply(a); |
585 |
} |
586 |
public <T,U> CompletableFuture<U> thenCompose |
587 |
(CompletableFuture<T> f, |
588 |
Function<? super T,? extends CompletionStage<U>> a) { |
589 |
return f.thenCompose(a); |
590 |
} |
591 |
public <T,U> CompletableFuture<U> handle |
592 |
(CompletableFuture<T> f, |
593 |
BiFunction<? super T,Throwable,? extends U> a) { |
594 |
return f.handle(a); |
595 |
} |
596 |
public <T> CompletableFuture<T> whenComplete |
597 |
(CompletableFuture<T> f, |
598 |
BiConsumer<? super T,? super Throwable> a) { |
599 |
return f.whenComplete(a); |
600 |
} |
601 |
public <T,U> CompletableFuture<Void> runAfterBoth |
602 |
(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) { |
603 |
return f.runAfterBoth(g, a); |
604 |
} |
605 |
public <T,U> CompletableFuture<Void> thenAcceptBoth |
606 |
(CompletableFuture<T> f, |
607 |
CompletionStage<? extends U> g, |
608 |
BiConsumer<? super T,? super U> a) { |
609 |
return f.thenAcceptBoth(g, a); |
610 |
} |
611 |
public <T,U,V> CompletableFuture<V> thenCombine |
612 |
(CompletableFuture<T> f, |
613 |
CompletionStage<? extends U> g, |
614 |
BiFunction<? super T,? super U,? extends V> a) { |
615 |
return f.thenCombine(g, a); |
616 |
} |
617 |
public <T> CompletableFuture<Void> runAfterEither |
618 |
(CompletableFuture<T> f, |
619 |
CompletionStage<?> g, |
620 |
java.lang.Runnable a) { |
621 |
return f.runAfterEither(g, a); |
622 |
} |
623 |
public <T> CompletableFuture<Void> acceptEither |
624 |
(CompletableFuture<T> f, |
625 |
CompletionStage<? extends T> g, |
626 |
Consumer<? super T> a) { |
627 |
return f.acceptEither(g, a); |
628 |
} |
629 |
public <T,U> CompletableFuture<U> applyToEither |
630 |
(CompletableFuture<T> f, |
631 |
CompletionStage<? extends T> g, |
632 |
Function<? super T,U> a) { |
633 |
return f.applyToEither(g, a); |
634 |
} |
635 |
}, |
636 |
|
637 |
ASYNC { |
638 |
public void checkExecutionMode() { |
639 |
assertEquals(defaultExecutorIsCommonPool, |
640 |
(ForkJoinPool.commonPool() == ForkJoinTask.getPool())); |
641 |
} |
642 |
public CompletableFuture<Void> runAsync(Runnable a) { |
643 |
return CompletableFuture.runAsync(a); |
644 |
} |
645 |
public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) { |
646 |
return CompletableFuture.supplyAsync(a); |
647 |
} |
648 |
public <T> CompletableFuture<Void> thenRun |
649 |
(CompletableFuture<T> f, Runnable a) { |
650 |
return f.thenRunAsync(a); |
651 |
} |
652 |
public <T> CompletableFuture<Void> thenAccept |
653 |
(CompletableFuture<T> f, Consumer<? super T> a) { |
654 |
return f.thenAcceptAsync(a); |
655 |
} |
656 |
public <T,U> CompletableFuture<U> thenApply |
657 |
(CompletableFuture<T> f, Function<? super T,U> a) { |
658 |
return f.thenApplyAsync(a); |
659 |
} |
660 |
public <T,U> CompletableFuture<U> thenCompose |
661 |
(CompletableFuture<T> f, |
662 |
Function<? super T,? extends CompletionStage<U>> a) { |
663 |
return f.thenComposeAsync(a); |
664 |
} |
665 |
public <T,U> CompletableFuture<U> handle |
666 |
(CompletableFuture<T> f, |
667 |
BiFunction<? super T,Throwable,? extends U> a) { |
668 |
return f.handleAsync(a); |
669 |
} |
670 |
public <T> CompletableFuture<T> whenComplete |
671 |
(CompletableFuture<T> f, |
672 |
BiConsumer<? super T,? super Throwable> a) { |
673 |
return f.whenCompleteAsync(a); |
674 |
} |
675 |
public <T,U> CompletableFuture<Void> runAfterBoth |
676 |
(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) { |
677 |
return f.runAfterBothAsync(g, a); |
678 |
} |
679 |
public <T,U> CompletableFuture<Void> thenAcceptBoth |
680 |
(CompletableFuture<T> f, |
681 |
CompletionStage<? extends U> g, |
682 |
BiConsumer<? super T,? super U> a) { |
683 |
return f.thenAcceptBothAsync(g, a); |
684 |
} |
685 |
public <T,U,V> CompletableFuture<V> thenCombine |
686 |
(CompletableFuture<T> f, |
687 |
CompletionStage<? extends U> g, |
688 |
BiFunction<? super T,? super U,? extends V> a) { |
689 |
return f.thenCombineAsync(g, a); |
690 |
} |
691 |
public <T> CompletableFuture<Void> runAfterEither |
692 |
(CompletableFuture<T> f, |
693 |
CompletionStage<?> g, |
694 |
java.lang.Runnable a) { |
695 |
return f.runAfterEitherAsync(g, a); |
696 |
} |
697 |
public <T> CompletableFuture<Void> acceptEither |
698 |
(CompletableFuture<T> f, |
699 |
CompletionStage<? extends T> g, |
700 |
Consumer<? super T> a) { |
701 |
return f.acceptEitherAsync(g, a); |
702 |
} |
703 |
public <T,U> CompletableFuture<U> applyToEither |
704 |
(CompletableFuture<T> f, |
705 |
CompletionStage<? extends T> g, |
706 |
Function<? super T,U> a) { |
707 |
return f.applyToEitherAsync(g, a); |
708 |
} |
709 |
}, |
710 |
|
711 |
EXECUTOR { |
712 |
public void checkExecutionMode() { |
713 |
assertTrue(ThreadExecutor.startedCurrentThread()); |
714 |
} |
715 |
public CompletableFuture<Void> runAsync(Runnable a) { |
716 |
return CompletableFuture.runAsync(a, new ThreadExecutor()); |
717 |
} |
718 |
public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) { |
719 |
return CompletableFuture.supplyAsync(a, new ThreadExecutor()); |
720 |
} |
721 |
public <T> CompletableFuture<Void> thenRun |
722 |
(CompletableFuture<T> f, Runnable a) { |
723 |
return f.thenRunAsync(a, new ThreadExecutor()); |
724 |
} |
725 |
public <T> CompletableFuture<Void> thenAccept |
726 |
(CompletableFuture<T> f, Consumer<? super T> a) { |
727 |
return f.thenAcceptAsync(a, new ThreadExecutor()); |
728 |
} |
729 |
public <T,U> CompletableFuture<U> thenApply |
730 |
(CompletableFuture<T> f, Function<? super T,U> a) { |
731 |
return f.thenApplyAsync(a, new ThreadExecutor()); |
732 |
} |
733 |
public <T,U> CompletableFuture<U> thenCompose |
734 |
(CompletableFuture<T> f, |
735 |
Function<? super T,? extends CompletionStage<U>> a) { |
736 |
return f.thenComposeAsync(a, new ThreadExecutor()); |
737 |
} |
738 |
public <T,U> CompletableFuture<U> handle |
739 |
(CompletableFuture<T> f, |
740 |
BiFunction<? super T,Throwable,? extends U> a) { |
741 |
return f.handleAsync(a, new ThreadExecutor()); |
742 |
} |
743 |
public <T> CompletableFuture<T> whenComplete |
744 |
(CompletableFuture<T> f, |
745 |
BiConsumer<? super T,? super Throwable> a) { |
746 |
return f.whenCompleteAsync(a, new ThreadExecutor()); |
747 |
} |
748 |
public <T,U> CompletableFuture<Void> runAfterBoth |
749 |
(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) { |
750 |
return f.runAfterBothAsync(g, a, new ThreadExecutor()); |
751 |
} |
752 |
public <T,U> CompletableFuture<Void> thenAcceptBoth |
753 |
(CompletableFuture<T> f, |
754 |
CompletionStage<? extends U> g, |
755 |
BiConsumer<? super T,? super U> a) { |
756 |
return f.thenAcceptBothAsync(g, a, new ThreadExecutor()); |
757 |
} |
758 |
public <T,U,V> CompletableFuture<V> thenCombine |
759 |
(CompletableFuture<T> f, |
760 |
CompletionStage<? extends U> g, |
761 |
BiFunction<? super T,? super U,? extends V> a) { |
762 |
return f.thenCombineAsync(g, a, new ThreadExecutor()); |
763 |
} |
764 |
public <T> CompletableFuture<Void> runAfterEither |
765 |
(CompletableFuture<T> f, |
766 |
CompletionStage<?> g, |
767 |
java.lang.Runnable a) { |
768 |
return f.runAfterEitherAsync(g, a, new ThreadExecutor()); |
769 |
} |
770 |
public <T> CompletableFuture<Void> acceptEither |
771 |
(CompletableFuture<T> f, |
772 |
CompletionStage<? extends T> g, |
773 |
Consumer<? super T> a) { |
774 |
return f.acceptEitherAsync(g, a, new ThreadExecutor()); |
775 |
} |
776 |
public <T,U> CompletableFuture<U> applyToEither |
777 |
(CompletableFuture<T> f, |
778 |
CompletionStage<? extends T> g, |
779 |
Function<? super T,U> a) { |
780 |
return f.applyToEitherAsync(g, a, new ThreadExecutor()); |
781 |
} |
782 |
}; |
783 |
|
784 |
public abstract void checkExecutionMode(); |
785 |
public abstract CompletableFuture<Void> runAsync(Runnable a); |
786 |
public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a); |
787 |
public abstract <T> CompletableFuture<Void> thenRun |
788 |
(CompletableFuture<T> f, Runnable a); |
789 |
public abstract <T> CompletableFuture<Void> thenAccept |
790 |
(CompletableFuture<T> f, Consumer<? super T> a); |
791 |
public abstract <T,U> CompletableFuture<U> thenApply |
792 |
(CompletableFuture<T> f, Function<? super T,U> a); |
793 |
public abstract <T,U> CompletableFuture<U> thenCompose |
794 |
(CompletableFuture<T> f, |
795 |
Function<? super T,? extends CompletionStage<U>> a); |
796 |
public abstract <T,U> CompletableFuture<U> handle |
797 |
(CompletableFuture<T> f, |
798 |
BiFunction<? super T,Throwable,? extends U> a); |
799 |
public abstract <T> CompletableFuture<T> whenComplete |
800 |
(CompletableFuture<T> f, |
801 |
BiConsumer<? super T,? super Throwable> a); |
802 |
public abstract <T,U> CompletableFuture<Void> runAfterBoth |
803 |
(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a); |
804 |
public abstract <T,U> CompletableFuture<Void> thenAcceptBoth |
805 |
(CompletableFuture<T> f, |
806 |
CompletionStage<? extends U> g, |
807 |
BiConsumer<? super T,? super U> a); |
808 |
public abstract <T,U,V> CompletableFuture<V> thenCombine |
809 |
(CompletableFuture<T> f, |
810 |
CompletionStage<? extends U> g, |
811 |
BiFunction<? super T,? super U,? extends V> a); |
812 |
public abstract <T> CompletableFuture<Void> runAfterEither |
813 |
(CompletableFuture<T> f, |
814 |
CompletionStage<?> g, |
815 |
java.lang.Runnable a); |
816 |
public abstract <T> CompletableFuture<Void> acceptEither |
817 |
(CompletableFuture<T> f, |
818 |
CompletionStage<? extends T> g, |
819 |
Consumer<? super T> a); |
820 |
public abstract <T,U> CompletableFuture<U> applyToEither |
821 |
(CompletableFuture<T> f, |
822 |
CompletionStage<? extends T> g, |
823 |
Function<? super T,U> a); |
824 |
} |
825 |
|
826 |
/** |
827 |
* exceptionally action is not invoked when source completes |
828 |
* normally, and source result is propagated |
829 |
*/ |
830 |
public void testExceptionally_normalCompletion() { |
831 |
for (boolean createIncomplete : new boolean[] { true, false }) |
832 |
for (Integer v1 : new Integer[] { 1, null }) |
833 |
{ |
834 |
final AtomicInteger a = new AtomicInteger(0); |
835 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
836 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
837 |
final CompletableFuture<Integer> g = f.exceptionally |
838 |
((Throwable t) -> { |
839 |
// Should not be called |
840 |
a.getAndIncrement(); |
841 |
throw new AssertionError(); |
842 |
}); |
843 |
if (createIncomplete) assertTrue(f.complete(v1)); |
844 |
|
845 |
checkCompletedNormally(g, v1); |
846 |
checkCompletedNormally(f, v1); |
847 |
assertEquals(0, a.get()); |
848 |
}} |
849 |
|
850 |
/** |
851 |
* exceptionally action completes with function value on source |
852 |
* exception |
853 |
*/ |
854 |
public void testExceptionally_exceptionalCompletion() { |
855 |
for (boolean createIncomplete : new boolean[] { true, false }) |
856 |
for (Integer v1 : new Integer[] { 1, null }) |
857 |
{ |
858 |
final AtomicInteger a = new AtomicInteger(0); |
859 |
final CFException ex = new CFException(); |
860 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
861 |
if (!createIncomplete) f.completeExceptionally(ex); |
862 |
final CompletableFuture<Integer> g = f.exceptionally |
863 |
((Throwable t) -> { |
864 |
ExecutionMode.SYNC.checkExecutionMode(); |
865 |
threadAssertSame(t, ex); |
866 |
a.getAndIncrement(); |
867 |
return v1; |
868 |
}); |
869 |
if (createIncomplete) f.completeExceptionally(ex); |
870 |
|
871 |
checkCompletedNormally(g, v1); |
872 |
assertEquals(1, a.get()); |
873 |
}} |
874 |
|
875 |
public void testExceptionally_exceptionalCompletionActionFailed() { |
876 |
for (boolean createIncomplete : new boolean[] { true, false }) |
877 |
{ |
878 |
final AtomicInteger a = new AtomicInteger(0); |
879 |
final CFException ex1 = new CFException(); |
880 |
final CFException ex2 = new CFException(); |
881 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
882 |
if (!createIncomplete) f.completeExceptionally(ex1); |
883 |
final CompletableFuture<Integer> g = f.exceptionally |
884 |
((Throwable t) -> { |
885 |
ExecutionMode.SYNC.checkExecutionMode(); |
886 |
threadAssertSame(t, ex1); |
887 |
a.getAndIncrement(); |
888 |
throw ex2; |
889 |
}); |
890 |
if (createIncomplete) f.completeExceptionally(ex1); |
891 |
|
892 |
checkCompletedWithWrappedException(g, ex2); |
893 |
assertEquals(1, a.get()); |
894 |
}} |
895 |
|
896 |
/** |
897 |
* whenComplete action executes on normal completion, propagating |
898 |
* source result. |
899 |
*/ |
900 |
public void testWhenComplete_normalCompletion1() { |
901 |
for (ExecutionMode m : ExecutionMode.values()) |
902 |
for (boolean createIncomplete : new boolean[] { true, false }) |
903 |
for (Integer v1 : new Integer[] { 1, null }) |
904 |
{ |
905 |
final AtomicInteger a = new AtomicInteger(0); |
906 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
907 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
908 |
final CompletableFuture<Integer> g = m.whenComplete |
909 |
(f, |
910 |
(Integer x, Throwable t) -> { |
911 |
m.checkExecutionMode(); |
912 |
threadAssertSame(x, v1); |
913 |
threadAssertNull(t); |
914 |
a.getAndIncrement(); |
915 |
}); |
916 |
if (createIncomplete) assertTrue(f.complete(v1)); |
917 |
|
918 |
checkCompletedNormally(g, v1); |
919 |
checkCompletedNormally(f, v1); |
920 |
assertEquals(1, a.get()); |
921 |
}} |
922 |
|
923 |
/** |
924 |
* whenComplete action executes on exceptional completion, propagating |
925 |
* source result. |
926 |
*/ |
927 |
public void testWhenComplete_exceptionalCompletion() { |
928 |
for (ExecutionMode m : ExecutionMode.values()) |
929 |
for (boolean createIncomplete : new boolean[] { true, false }) |
930 |
{ |
931 |
final AtomicInteger a = new AtomicInteger(0); |
932 |
final CFException ex = new CFException(); |
933 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
934 |
if (!createIncomplete) f.completeExceptionally(ex); |
935 |
final CompletableFuture<Integer> g = m.whenComplete |
936 |
(f, |
937 |
(Integer x, Throwable t) -> { |
938 |
m.checkExecutionMode(); |
939 |
threadAssertNull(x); |
940 |
threadAssertSame(t, ex); |
941 |
a.getAndIncrement(); |
942 |
}); |
943 |
if (createIncomplete) f.completeExceptionally(ex); |
944 |
|
945 |
checkCompletedWithWrappedException(g, ex); |
946 |
checkCompletedExceptionally(f, ex); |
947 |
assertEquals(1, a.get()); |
948 |
}} |
949 |
|
950 |
/** |
951 |
* whenComplete action executes on cancelled source, propagating |
952 |
* CancellationException. |
953 |
*/ |
954 |
public void testWhenComplete_sourceCancelled() { |
955 |
for (ExecutionMode m : ExecutionMode.values()) |
956 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
957 |
for (boolean createIncomplete : new boolean[] { true, false }) |
958 |
{ |
959 |
final AtomicInteger a = new AtomicInteger(0); |
960 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
961 |
if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
962 |
final CompletableFuture<Integer> g = m.whenComplete |
963 |
(f, |
964 |
(Integer x, Throwable t) -> { |
965 |
m.checkExecutionMode(); |
966 |
threadAssertNull(x); |
967 |
threadAssertTrue(t instanceof CancellationException); |
968 |
a.getAndIncrement(); |
969 |
}); |
970 |
if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
971 |
|
972 |
checkCompletedWithWrappedCancellationException(g); |
973 |
checkCancelled(f); |
974 |
assertEquals(1, a.get()); |
975 |
}} |
976 |
|
977 |
/** |
978 |
* If a whenComplete action throws an exception when triggered by |
979 |
* a normal completion, it completes exceptionally |
980 |
*/ |
981 |
public void testWhenComplete_actionFailed() { |
982 |
for (boolean createIncomplete : new boolean[] { true, false }) |
983 |
for (ExecutionMode m : ExecutionMode.values()) |
984 |
for (Integer v1 : new Integer[] { 1, null }) |
985 |
{ |
986 |
final AtomicInteger a = new AtomicInteger(0); |
987 |
final CFException ex = new CFException(); |
988 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
989 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
990 |
final CompletableFuture<Integer> g = m.whenComplete |
991 |
(f, |
992 |
(Integer x, Throwable t) -> { |
993 |
m.checkExecutionMode(); |
994 |
threadAssertSame(x, v1); |
995 |
threadAssertNull(t); |
996 |
a.getAndIncrement(); |
997 |
throw ex; |
998 |
}); |
999 |
if (createIncomplete) assertTrue(f.complete(v1)); |
1000 |
|
1001 |
checkCompletedWithWrappedException(g, ex); |
1002 |
checkCompletedNormally(f, v1); |
1003 |
assertEquals(1, a.get()); |
1004 |
}} |
1005 |
|
1006 |
/** |
1007 |
* If a whenComplete action throws an exception when triggered by |
1008 |
* a source completion that also throws an exception, the source |
1009 |
* exception takes precedence. |
1010 |
*/ |
1011 |
public void testWhenComplete_actionFailedSourceFailed() { |
1012 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1013 |
for (ExecutionMode m : ExecutionMode.values()) |
1014 |
{ |
1015 |
final AtomicInteger a = new AtomicInteger(0); |
1016 |
final CFException ex1 = new CFException(); |
1017 |
final CFException ex2 = new CFException(); |
1018 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1019 |
|
1020 |
if (!createIncomplete) f.completeExceptionally(ex1); |
1021 |
final CompletableFuture<Integer> g = m.whenComplete |
1022 |
(f, |
1023 |
(Integer x, Throwable t) -> { |
1024 |
m.checkExecutionMode(); |
1025 |
threadAssertSame(t, ex1); |
1026 |
threadAssertNull(x); |
1027 |
a.getAndIncrement(); |
1028 |
throw ex2; |
1029 |
}); |
1030 |
if (createIncomplete) f.completeExceptionally(ex1); |
1031 |
|
1032 |
checkCompletedWithWrappedException(g, ex1); |
1033 |
checkCompletedExceptionally(f, ex1); |
1034 |
assertEquals(1, a.get()); |
1035 |
}} |
1036 |
|
1037 |
/** |
1038 |
* handle action completes normally with function value on normal |
1039 |
* completion of source |
1040 |
*/ |
1041 |
public void testHandle_normalCompletion() { |
1042 |
for (ExecutionMode m : ExecutionMode.values()) |
1043 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1044 |
for (Integer v1 : new Integer[] { 1, null }) |
1045 |
{ |
1046 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1047 |
final AtomicInteger a = new AtomicInteger(0); |
1048 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
1049 |
final CompletableFuture<Integer> g = m.handle |
1050 |
(f, |
1051 |
(Integer x, Throwable t) -> { |
1052 |
m.checkExecutionMode(); |
1053 |
threadAssertSame(x, v1); |
1054 |
threadAssertNull(t); |
1055 |
a.getAndIncrement(); |
1056 |
return inc(v1); |
1057 |
}); |
1058 |
if (createIncomplete) assertTrue(f.complete(v1)); |
1059 |
|
1060 |
checkCompletedNormally(g, inc(v1)); |
1061 |
checkCompletedNormally(f, v1); |
1062 |
assertEquals(1, a.get()); |
1063 |
}} |
1064 |
|
1065 |
/** |
1066 |
* handle action completes normally with function value on |
1067 |
* exceptional completion of source |
1068 |
*/ |
1069 |
public void testHandle_exceptionalCompletion() { |
1070 |
for (ExecutionMode m : ExecutionMode.values()) |
1071 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1072 |
for (Integer v1 : new Integer[] { 1, null }) |
1073 |
{ |
1074 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1075 |
final AtomicInteger a = new AtomicInteger(0); |
1076 |
final CFException ex = new CFException(); |
1077 |
if (!createIncomplete) f.completeExceptionally(ex); |
1078 |
final CompletableFuture<Integer> g = m.handle |
1079 |
(f, |
1080 |
(Integer x, Throwable t) -> { |
1081 |
m.checkExecutionMode(); |
1082 |
threadAssertNull(x); |
1083 |
threadAssertSame(t, ex); |
1084 |
a.getAndIncrement(); |
1085 |
return v1; |
1086 |
}); |
1087 |
if (createIncomplete) f.completeExceptionally(ex); |
1088 |
|
1089 |
checkCompletedNormally(g, v1); |
1090 |
checkCompletedExceptionally(f, ex); |
1091 |
assertEquals(1, a.get()); |
1092 |
}} |
1093 |
|
1094 |
/** |
1095 |
* handle action completes normally with function value on |
1096 |
* cancelled source |
1097 |
*/ |
1098 |
public void testHandle_sourceCancelled() { |
1099 |
for (ExecutionMode m : ExecutionMode.values()) |
1100 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1101 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1102 |
for (Integer v1 : new Integer[] { 1, null }) |
1103 |
{ |
1104 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1105 |
final AtomicInteger a = new AtomicInteger(0); |
1106 |
if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
1107 |
final CompletableFuture<Integer> g = m.handle |
1108 |
(f, |
1109 |
(Integer x, Throwable t) -> { |
1110 |
m.checkExecutionMode(); |
1111 |
threadAssertNull(x); |
1112 |
threadAssertTrue(t instanceof CancellationException); |
1113 |
a.getAndIncrement(); |
1114 |
return v1; |
1115 |
}); |
1116 |
if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
1117 |
|
1118 |
checkCompletedNormally(g, v1); |
1119 |
checkCancelled(f); |
1120 |
assertEquals(1, a.get()); |
1121 |
}} |
1122 |
|
1123 |
/** |
1124 |
* handle result completes exceptionally if action does |
1125 |
*/ |
1126 |
public void testHandle_sourceFailedActionFailed() { |
1127 |
for (ExecutionMode m : ExecutionMode.values()) |
1128 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1129 |
{ |
1130 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1131 |
final AtomicInteger a = new AtomicInteger(0); |
1132 |
final CFException ex1 = new CFException(); |
1133 |
final CFException ex2 = new CFException(); |
1134 |
if (!createIncomplete) f.completeExceptionally(ex1); |
1135 |
final CompletableFuture<Integer> g = m.handle |
1136 |
(f, |
1137 |
(Integer x, Throwable t) -> { |
1138 |
m.checkExecutionMode(); |
1139 |
threadAssertNull(x); |
1140 |
threadAssertSame(ex1, t); |
1141 |
a.getAndIncrement(); |
1142 |
throw ex2; |
1143 |
}); |
1144 |
if (createIncomplete) f.completeExceptionally(ex1); |
1145 |
|
1146 |
checkCompletedWithWrappedException(g, ex2); |
1147 |
checkCompletedExceptionally(f, ex1); |
1148 |
assertEquals(1, a.get()); |
1149 |
}} |
1150 |
|
1151 |
public void testHandle_sourceCompletedNormallyActionFailed() { |
1152 |
for (ExecutionMode m : ExecutionMode.values()) |
1153 |
for (boolean createIncomplete : new boolean[] { true, false }) |
1154 |
for (Integer v1 : new Integer[] { 1, null }) |
1155 |
{ |
1156 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1157 |
final AtomicInteger a = new AtomicInteger(0); |
1158 |
final CFException ex = new CFException(); |
1159 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
1160 |
final CompletableFuture<Integer> g = m.handle |
1161 |
(f, |
1162 |
(Integer x, Throwable t) -> { |
1163 |
m.checkExecutionMode(); |
1164 |
threadAssertSame(x, v1); |
1165 |
threadAssertNull(t); |
1166 |
a.getAndIncrement(); |
1167 |
throw ex; |
1168 |
}); |
1169 |
if (createIncomplete) assertTrue(f.complete(v1)); |
1170 |
|
1171 |
checkCompletedWithWrappedException(g, ex); |
1172 |
checkCompletedNormally(f, v1); |
1173 |
assertEquals(1, a.get()); |
1174 |
}} |
1175 |
|
1176 |
/** |
1177 |
* runAsync completes after running Runnable |
1178 |
*/ |
1179 |
public void testRunAsync_normalCompletion() { |
1180 |
ExecutionMode[] executionModes = { |
1181 |
ExecutionMode.ASYNC, |
1182 |
ExecutionMode.EXECUTOR, |
1183 |
}; |
1184 |
for (ExecutionMode m : executionModes) |
1185 |
{ |
1186 |
final Noop r = new Noop(m); |
1187 |
final CompletableFuture<Void> f = m.runAsync(r); |
1188 |
assertNull(f.join()); |
1189 |
checkCompletedNormally(f, null); |
1190 |
r.assertInvoked(); |
1191 |
}} |
1192 |
|
1193 |
/** |
1194 |
* failing runAsync completes exceptionally after running Runnable |
1195 |
*/ |
1196 |
public void testRunAsync_exceptionalCompletion() { |
1197 |
ExecutionMode[] executionModes = { |
1198 |
ExecutionMode.ASYNC, |
1199 |
ExecutionMode.EXECUTOR, |
1200 |
}; |
1201 |
for (ExecutionMode m : executionModes) |
1202 |
{ |
1203 |
final FailingRunnable r = new FailingRunnable(m); |
1204 |
final CompletableFuture<Void> f = m.runAsync(r); |
1205 |
checkCompletedWithWrappedCFException(f); |
1206 |
r.assertInvoked(); |
1207 |
}} |
1208 |
|
1209 |
/** |
1210 |
* supplyAsync completes with result of supplier |
1211 |
*/ |
1212 |
public void testSupplyAsync_normalCompletion() { |
1213 |
ExecutionMode[] executionModes = { |
1214 |
ExecutionMode.ASYNC, |
1215 |
ExecutionMode.EXECUTOR, |
1216 |
}; |
1217 |
for (ExecutionMode m : executionModes) |
1218 |
for (Integer v1 : new Integer[] { 1, null }) |
1219 |
{ |
1220 |
final IntegerSupplier r = new IntegerSupplier(m, v1); |
1221 |
final CompletableFuture<Integer> f = m.supplyAsync(r); |
1222 |
assertSame(v1, f.join()); |
1223 |
checkCompletedNormally(f, v1); |
1224 |
r.assertInvoked(); |
1225 |
}} |
1226 |
|
1227 |
/** |
1228 |
* Failing supplyAsync completes exceptionally |
1229 |
*/ |
1230 |
public void testSupplyAsync_exceptionalCompletion() { |
1231 |
ExecutionMode[] executionModes = { |
1232 |
ExecutionMode.ASYNC, |
1233 |
ExecutionMode.EXECUTOR, |
1234 |
}; |
1235 |
for (ExecutionMode m : executionModes) |
1236 |
{ |
1237 |
FailingSupplier r = new FailingSupplier(m); |
1238 |
CompletableFuture<Integer> f = m.supplyAsync(r); |
1239 |
checkCompletedWithWrappedCFException(f); |
1240 |
r.assertInvoked(); |
1241 |
}} |
1242 |
|
1243 |
// seq completion methods |
1244 |
|
1245 |
/** |
1246 |
* thenRun result completes normally after normal completion of source |
1247 |
*/ |
1248 |
public void testThenRun_normalCompletion() { |
1249 |
for (ExecutionMode m : ExecutionMode.values()) |
1250 |
for (Integer v1 : new Integer[] { 1, null }) |
1251 |
{ |
1252 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1253 |
final Noop[] rs = new Noop[6]; |
1254 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
1255 |
|
1256 |
final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]); |
1257 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]); |
1258 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]); |
1259 |
checkIncomplete(h0); |
1260 |
checkIncomplete(h1); |
1261 |
checkIncomplete(h2); |
1262 |
assertTrue(f.complete(v1)); |
1263 |
final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]); |
1264 |
final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]); |
1265 |
final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]); |
1266 |
|
1267 |
checkCompletedNormally(h0, null); |
1268 |
checkCompletedNormally(h1, null); |
1269 |
checkCompletedNormally(h2, null); |
1270 |
checkCompletedNormally(h3, null); |
1271 |
checkCompletedNormally(h4, null); |
1272 |
checkCompletedNormally(h5, null); |
1273 |
checkCompletedNormally(f, v1); |
1274 |
for (Noop r : rs) r.assertInvoked(); |
1275 |
}} |
1276 |
|
1277 |
/** |
1278 |
* thenRun result completes exceptionally after exceptional |
1279 |
* completion of source |
1280 |
*/ |
1281 |
public void testThenRun_exceptionalCompletion() { |
1282 |
for (ExecutionMode m : ExecutionMode.values()) |
1283 |
{ |
1284 |
final CFException ex = new CFException(); |
1285 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1286 |
final Noop[] rs = new Noop[6]; |
1287 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
1288 |
|
1289 |
final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]); |
1290 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]); |
1291 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]); |
1292 |
checkIncomplete(h0); |
1293 |
checkIncomplete(h1); |
1294 |
checkIncomplete(h2); |
1295 |
assertTrue(f.completeExceptionally(ex)); |
1296 |
final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]); |
1297 |
final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]); |
1298 |
final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]); |
1299 |
|
1300 |
checkCompletedWithWrappedException(h0, ex); |
1301 |
checkCompletedWithWrappedException(h1, ex); |
1302 |
checkCompletedWithWrappedException(h2, ex); |
1303 |
checkCompletedWithWrappedException(h3, ex); |
1304 |
checkCompletedWithWrappedException(h4, ex); |
1305 |
checkCompletedWithWrappedException(h5, ex); |
1306 |
checkCompletedExceptionally(f, ex); |
1307 |
for (Noop r : rs) r.assertNotInvoked(); |
1308 |
}} |
1309 |
|
1310 |
/** |
1311 |
* thenRun result completes exceptionally if source cancelled |
1312 |
*/ |
1313 |
public void testThenRun_sourceCancelled() { |
1314 |
for (ExecutionMode m : ExecutionMode.values()) |
1315 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1316 |
{ |
1317 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1318 |
final Noop[] rs = new Noop[6]; |
1319 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
1320 |
|
1321 |
final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]); |
1322 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]); |
1323 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]); |
1324 |
checkIncomplete(h0); |
1325 |
checkIncomplete(h1); |
1326 |
checkIncomplete(h2); |
1327 |
assertTrue(f.cancel(mayInterruptIfRunning)); |
1328 |
final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]); |
1329 |
final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]); |
1330 |
final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]); |
1331 |
|
1332 |
checkCompletedWithWrappedCancellationException(h0); |
1333 |
checkCompletedWithWrappedCancellationException(h1); |
1334 |
checkCompletedWithWrappedCancellationException(h2); |
1335 |
checkCompletedWithWrappedCancellationException(h3); |
1336 |
checkCompletedWithWrappedCancellationException(h4); |
1337 |
checkCompletedWithWrappedCancellationException(h5); |
1338 |
checkCancelled(f); |
1339 |
for (Noop r : rs) r.assertNotInvoked(); |
1340 |
}} |
1341 |
|
1342 |
/** |
1343 |
* thenRun result completes exceptionally if action does |
1344 |
*/ |
1345 |
public void testThenRun_actionFailed() { |
1346 |
for (ExecutionMode m : ExecutionMode.values()) |
1347 |
for (Integer v1 : new Integer[] { 1, null }) |
1348 |
{ |
1349 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1350 |
final FailingRunnable[] rs = new FailingRunnable[6]; |
1351 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m); |
1352 |
|
1353 |
final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]); |
1354 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]); |
1355 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]); |
1356 |
assertTrue(f.complete(v1)); |
1357 |
final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]); |
1358 |
final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]); |
1359 |
final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]); |
1360 |
|
1361 |
checkCompletedWithWrappedCFException(h0); |
1362 |
checkCompletedWithWrappedCFException(h1); |
1363 |
checkCompletedWithWrappedCFException(h2); |
1364 |
checkCompletedWithWrappedCFException(h3); |
1365 |
checkCompletedWithWrappedCFException(h4); |
1366 |
checkCompletedWithWrappedCFException(h5); |
1367 |
checkCompletedNormally(f, v1); |
1368 |
}} |
1369 |
|
1370 |
/** |
1371 |
* thenApply result completes normally after normal completion of source |
1372 |
*/ |
1373 |
public void testThenApply_normalCompletion() { |
1374 |
for (ExecutionMode m : ExecutionMode.values()) |
1375 |
for (Integer v1 : new Integer[] { 1, null }) |
1376 |
{ |
1377 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1378 |
final IncFunction[] rs = new IncFunction[4]; |
1379 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
1380 |
|
1381 |
final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]); |
1382 |
final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]); |
1383 |
checkIncomplete(h0); |
1384 |
checkIncomplete(h1); |
1385 |
assertTrue(f.complete(v1)); |
1386 |
final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]); |
1387 |
final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]); |
1388 |
|
1389 |
checkCompletedNormally(h0, inc(v1)); |
1390 |
checkCompletedNormally(h1, inc(v1)); |
1391 |
checkCompletedNormally(h2, inc(v1)); |
1392 |
checkCompletedNormally(h3, inc(v1)); |
1393 |
checkCompletedNormally(f, v1); |
1394 |
for (IncFunction r : rs) r.assertValue(inc(v1)); |
1395 |
}} |
1396 |
|
1397 |
/** |
1398 |
* thenApply result completes exceptionally after exceptional |
1399 |
* completion of source |
1400 |
*/ |
1401 |
public void testThenApply_exceptionalCompletion() { |
1402 |
for (ExecutionMode m : ExecutionMode.values()) |
1403 |
{ |
1404 |
final CFException ex = new CFException(); |
1405 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1406 |
final IncFunction[] rs = new IncFunction[4]; |
1407 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
1408 |
|
1409 |
final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]); |
1410 |
final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]); |
1411 |
assertTrue(f.completeExceptionally(ex)); |
1412 |
final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]); |
1413 |
final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]); |
1414 |
|
1415 |
checkCompletedWithWrappedException(h0, ex); |
1416 |
checkCompletedWithWrappedException(h1, ex); |
1417 |
checkCompletedWithWrappedException(h2, ex); |
1418 |
checkCompletedWithWrappedException(h3, ex); |
1419 |
checkCompletedExceptionally(f, ex); |
1420 |
for (IncFunction r : rs) r.assertNotInvoked(); |
1421 |
}} |
1422 |
|
1423 |
/** |
1424 |
* thenApply result completes exceptionally if source cancelled |
1425 |
*/ |
1426 |
public void testThenApply_sourceCancelled() { |
1427 |
for (ExecutionMode m : ExecutionMode.values()) |
1428 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1429 |
{ |
1430 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1431 |
final IncFunction[] rs = new IncFunction[4]; |
1432 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
1433 |
|
1434 |
final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]); |
1435 |
final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]); |
1436 |
assertTrue(f.cancel(mayInterruptIfRunning)); |
1437 |
final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]); |
1438 |
final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]); |
1439 |
|
1440 |
checkCompletedWithWrappedCancellationException(h0); |
1441 |
checkCompletedWithWrappedCancellationException(h1); |
1442 |
checkCompletedWithWrappedCancellationException(h2); |
1443 |
checkCompletedWithWrappedCancellationException(h3); |
1444 |
checkCancelled(f); |
1445 |
for (IncFunction r : rs) r.assertNotInvoked(); |
1446 |
}} |
1447 |
|
1448 |
/** |
1449 |
* thenApply result completes exceptionally if action does |
1450 |
*/ |
1451 |
public void testThenApply_actionFailed() { |
1452 |
for (ExecutionMode m : ExecutionMode.values()) |
1453 |
for (Integer v1 : new Integer[] { 1, null }) |
1454 |
{ |
1455 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1456 |
final FailingFunction[] rs = new FailingFunction[4]; |
1457 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m); |
1458 |
|
1459 |
final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]); |
1460 |
final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]); |
1461 |
assertTrue(f.complete(v1)); |
1462 |
final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]); |
1463 |
final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]); |
1464 |
|
1465 |
checkCompletedWithWrappedCFException(h0); |
1466 |
checkCompletedWithWrappedCFException(h1); |
1467 |
checkCompletedWithWrappedCFException(h2); |
1468 |
checkCompletedWithWrappedCFException(h3); |
1469 |
checkCompletedNormally(f, v1); |
1470 |
}} |
1471 |
|
1472 |
/** |
1473 |
* thenAccept result completes normally after normal completion of source |
1474 |
*/ |
1475 |
public void testThenAccept_normalCompletion() { |
1476 |
for (ExecutionMode m : ExecutionMode.values()) |
1477 |
for (Integer v1 : new Integer[] { 1, null }) |
1478 |
{ |
1479 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1480 |
final NoopConsumer[] rs = new NoopConsumer[4]; |
1481 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
1482 |
|
1483 |
final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]); |
1484 |
final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]); |
1485 |
checkIncomplete(h0); |
1486 |
checkIncomplete(h1); |
1487 |
assertTrue(f.complete(v1)); |
1488 |
final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]); |
1489 |
final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]); |
1490 |
|
1491 |
checkCompletedNormally(h0, null); |
1492 |
checkCompletedNormally(h1, null); |
1493 |
checkCompletedNormally(h2, null); |
1494 |
checkCompletedNormally(h3, null); |
1495 |
checkCompletedNormally(f, v1); |
1496 |
for (NoopConsumer r : rs) r.assertValue(v1); |
1497 |
}} |
1498 |
|
1499 |
/** |
1500 |
* thenAccept result completes exceptionally after exceptional |
1501 |
* completion of source |
1502 |
*/ |
1503 |
public void testThenAccept_exceptionalCompletion() { |
1504 |
for (ExecutionMode m : ExecutionMode.values()) |
1505 |
{ |
1506 |
final CFException ex = new CFException(); |
1507 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1508 |
final NoopConsumer[] rs = new NoopConsumer[4]; |
1509 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
1510 |
|
1511 |
final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]); |
1512 |
final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]); |
1513 |
assertTrue(f.completeExceptionally(ex)); |
1514 |
final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]); |
1515 |
final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]); |
1516 |
|
1517 |
checkCompletedWithWrappedException(h0, ex); |
1518 |
checkCompletedWithWrappedException(h1, ex); |
1519 |
checkCompletedWithWrappedException(h2, ex); |
1520 |
checkCompletedWithWrappedException(h3, ex); |
1521 |
checkCompletedExceptionally(f, ex); |
1522 |
for (NoopConsumer r : rs) r.assertNotInvoked(); |
1523 |
}} |
1524 |
|
1525 |
/** |
1526 |
* thenAccept result completes exceptionally if source cancelled |
1527 |
*/ |
1528 |
public void testThenAccept_sourceCancelled() { |
1529 |
for (ExecutionMode m : ExecutionMode.values()) |
1530 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1531 |
{ |
1532 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1533 |
final NoopConsumer[] rs = new NoopConsumer[4]; |
1534 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
1535 |
|
1536 |
final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]); |
1537 |
final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]); |
1538 |
assertTrue(f.cancel(mayInterruptIfRunning)); |
1539 |
final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]); |
1540 |
final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]); |
1541 |
|
1542 |
checkCompletedWithWrappedCancellationException(h0); |
1543 |
checkCompletedWithWrappedCancellationException(h1); |
1544 |
checkCompletedWithWrappedCancellationException(h2); |
1545 |
checkCompletedWithWrappedCancellationException(h3); |
1546 |
checkCancelled(f); |
1547 |
for (NoopConsumer r : rs) r.assertNotInvoked(); |
1548 |
}} |
1549 |
|
1550 |
/** |
1551 |
* thenAccept result completes exceptionally if action does |
1552 |
*/ |
1553 |
public void testThenAccept_actionFailed() { |
1554 |
for (ExecutionMode m : ExecutionMode.values()) |
1555 |
for (Integer v1 : new Integer[] { 1, null }) |
1556 |
{ |
1557 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1558 |
final FailingConsumer[] rs = new FailingConsumer[4]; |
1559 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m); |
1560 |
|
1561 |
final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]); |
1562 |
final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]); |
1563 |
assertTrue(f.complete(v1)); |
1564 |
final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]); |
1565 |
final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]); |
1566 |
|
1567 |
checkCompletedWithWrappedCFException(h0); |
1568 |
checkCompletedWithWrappedCFException(h1); |
1569 |
checkCompletedWithWrappedCFException(h2); |
1570 |
checkCompletedWithWrappedCFException(h3); |
1571 |
checkCompletedNormally(f, v1); |
1572 |
}} |
1573 |
|
1574 |
/** |
1575 |
* thenCombine result completes normally after normal completion |
1576 |
* of sources |
1577 |
*/ |
1578 |
public void testThenCombine_normalCompletion() { |
1579 |
for (ExecutionMode m : ExecutionMode.values()) |
1580 |
for (boolean fFirst : new boolean[] { true, false }) |
1581 |
for (Integer v1 : new Integer[] { 1, null }) |
1582 |
for (Integer v2 : new Integer[] { 2, null }) |
1583 |
{ |
1584 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1585 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1586 |
final SubtractFunction[] rs = new SubtractFunction[6]; |
1587 |
for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m); |
1588 |
|
1589 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1590 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1591 |
final Integer w1 = fFirst ? v1 : v2; |
1592 |
final Integer w2 = !fFirst ? v1 : v2; |
1593 |
|
1594 |
final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]); |
1595 |
final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]); |
1596 |
assertTrue(fst.complete(w1)); |
1597 |
final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]); |
1598 |
final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]); |
1599 |
checkIncomplete(h0); rs[0].assertNotInvoked(); |
1600 |
checkIncomplete(h2); rs[2].assertNotInvoked(); |
1601 |
checkCompletedNormally(h1, subtract(w1, w1)); |
1602 |
checkCompletedNormally(h3, subtract(w1, w1)); |
1603 |
rs[1].assertValue(subtract(w1, w1)); |
1604 |
rs[3].assertValue(subtract(w1, w1)); |
1605 |
assertTrue(snd.complete(w2)); |
1606 |
final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]); |
1607 |
|
1608 |
checkCompletedNormally(h0, subtract(v1, v2)); |
1609 |
checkCompletedNormally(h2, subtract(v1, v2)); |
1610 |
checkCompletedNormally(h4, subtract(v1, v2)); |
1611 |
rs[0].assertValue(subtract(v1, v2)); |
1612 |
rs[2].assertValue(subtract(v1, v2)); |
1613 |
rs[4].assertValue(subtract(v1, v2)); |
1614 |
|
1615 |
checkCompletedNormally(f, v1); |
1616 |
checkCompletedNormally(g, v2); |
1617 |
}} |
1618 |
|
1619 |
/** |
1620 |
* thenCombine result completes exceptionally after exceptional |
1621 |
* completion of either source |
1622 |
*/ |
1623 |
public void testThenCombine_exceptionalCompletion() throws Throwable { |
1624 |
for (ExecutionMode m : ExecutionMode.values()) |
1625 |
for (boolean fFirst : new boolean[] { true, false }) |
1626 |
for (boolean failFirst : new boolean[] { true, false }) |
1627 |
for (Integer v1 : new Integer[] { 1, null }) |
1628 |
{ |
1629 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1630 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1631 |
final CFException ex = new CFException(); |
1632 |
final SubtractFunction r1 = new SubtractFunction(m); |
1633 |
final SubtractFunction r2 = new SubtractFunction(m); |
1634 |
final SubtractFunction r3 = new SubtractFunction(m); |
1635 |
|
1636 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1637 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1638 |
final Callable<Boolean> complete1 = failFirst ? |
1639 |
() -> fst.completeExceptionally(ex) : |
1640 |
() -> fst.complete(v1); |
1641 |
final Callable<Boolean> complete2 = failFirst ? |
1642 |
() -> snd.complete(v1) : |
1643 |
() -> snd.completeExceptionally(ex); |
1644 |
|
1645 |
final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1); |
1646 |
assertTrue(complete1.call()); |
1647 |
final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2); |
1648 |
checkIncomplete(h1); |
1649 |
checkIncomplete(h2); |
1650 |
assertTrue(complete2.call()); |
1651 |
final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3); |
1652 |
|
1653 |
checkCompletedWithWrappedException(h1, ex); |
1654 |
checkCompletedWithWrappedException(h2, ex); |
1655 |
checkCompletedWithWrappedException(h3, ex); |
1656 |
r1.assertNotInvoked(); |
1657 |
r2.assertNotInvoked(); |
1658 |
r3.assertNotInvoked(); |
1659 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
1660 |
checkCompletedExceptionally(failFirst ? fst : snd, ex); |
1661 |
}} |
1662 |
|
1663 |
/** |
1664 |
* thenCombine result completes exceptionally if either source cancelled |
1665 |
*/ |
1666 |
public void testThenCombine_sourceCancelled() throws Throwable { |
1667 |
for (ExecutionMode m : ExecutionMode.values()) |
1668 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1669 |
for (boolean fFirst : new boolean[] { true, false }) |
1670 |
for (boolean failFirst : new boolean[] { true, false }) |
1671 |
for (Integer v1 : new Integer[] { 1, null }) |
1672 |
{ |
1673 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1674 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1675 |
final SubtractFunction r1 = new SubtractFunction(m); |
1676 |
final SubtractFunction r2 = new SubtractFunction(m); |
1677 |
final SubtractFunction r3 = new SubtractFunction(m); |
1678 |
|
1679 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1680 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1681 |
final Callable<Boolean> complete1 = failFirst ? |
1682 |
() -> fst.cancel(mayInterruptIfRunning) : |
1683 |
() -> fst.complete(v1); |
1684 |
final Callable<Boolean> complete2 = failFirst ? |
1685 |
() -> snd.complete(v1) : |
1686 |
() -> snd.cancel(mayInterruptIfRunning); |
1687 |
|
1688 |
final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1); |
1689 |
assertTrue(complete1.call()); |
1690 |
final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2); |
1691 |
checkIncomplete(h1); |
1692 |
checkIncomplete(h2); |
1693 |
assertTrue(complete2.call()); |
1694 |
final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3); |
1695 |
|
1696 |
checkCompletedWithWrappedCancellationException(h1); |
1697 |
checkCompletedWithWrappedCancellationException(h2); |
1698 |
checkCompletedWithWrappedCancellationException(h3); |
1699 |
r1.assertNotInvoked(); |
1700 |
r2.assertNotInvoked(); |
1701 |
r3.assertNotInvoked(); |
1702 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
1703 |
checkCancelled(failFirst ? fst : snd); |
1704 |
}} |
1705 |
|
1706 |
/** |
1707 |
* thenCombine result completes exceptionally if action does |
1708 |
*/ |
1709 |
public void testThenCombine_actionFailed() { |
1710 |
for (ExecutionMode m : ExecutionMode.values()) |
1711 |
for (boolean fFirst : new boolean[] { true, false }) |
1712 |
for (Integer v1 : new Integer[] { 1, null }) |
1713 |
for (Integer v2 : new Integer[] { 2, null }) |
1714 |
{ |
1715 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1716 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1717 |
final FailingBiFunction r1 = new FailingBiFunction(m); |
1718 |
final FailingBiFunction r2 = new FailingBiFunction(m); |
1719 |
final FailingBiFunction r3 = new FailingBiFunction(m); |
1720 |
|
1721 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1722 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1723 |
final Integer w1 = fFirst ? v1 : v2; |
1724 |
final Integer w2 = !fFirst ? v1 : v2; |
1725 |
|
1726 |
final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1); |
1727 |
assertTrue(fst.complete(w1)); |
1728 |
final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2); |
1729 |
assertTrue(snd.complete(w2)); |
1730 |
final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3); |
1731 |
|
1732 |
checkCompletedWithWrappedCFException(h1); |
1733 |
checkCompletedWithWrappedCFException(h2); |
1734 |
checkCompletedWithWrappedCFException(h3); |
1735 |
r1.assertInvoked(); |
1736 |
r2.assertInvoked(); |
1737 |
r3.assertInvoked(); |
1738 |
checkCompletedNormally(f, v1); |
1739 |
checkCompletedNormally(g, v2); |
1740 |
}} |
1741 |
|
1742 |
/** |
1743 |
* thenAcceptBoth result completes normally after normal |
1744 |
* completion of sources |
1745 |
*/ |
1746 |
public void testThenAcceptBoth_normalCompletion() { |
1747 |
for (ExecutionMode m : ExecutionMode.values()) |
1748 |
for (boolean fFirst : new boolean[] { true, false }) |
1749 |
for (Integer v1 : new Integer[] { 1, null }) |
1750 |
for (Integer v2 : new Integer[] { 2, null }) |
1751 |
{ |
1752 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1753 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1754 |
final SubtractAction r1 = new SubtractAction(m); |
1755 |
final SubtractAction r2 = new SubtractAction(m); |
1756 |
final SubtractAction r3 = new SubtractAction(m); |
1757 |
|
1758 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1759 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1760 |
final Integer w1 = fFirst ? v1 : v2; |
1761 |
final Integer w2 = !fFirst ? v1 : v2; |
1762 |
|
1763 |
final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1); |
1764 |
assertTrue(fst.complete(w1)); |
1765 |
final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2); |
1766 |
checkIncomplete(h1); |
1767 |
checkIncomplete(h2); |
1768 |
r1.assertNotInvoked(); |
1769 |
r2.assertNotInvoked(); |
1770 |
assertTrue(snd.complete(w2)); |
1771 |
final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3); |
1772 |
|
1773 |
checkCompletedNormally(h1, null); |
1774 |
checkCompletedNormally(h2, null); |
1775 |
checkCompletedNormally(h3, null); |
1776 |
r1.assertValue(subtract(v1, v2)); |
1777 |
r2.assertValue(subtract(v1, v2)); |
1778 |
r3.assertValue(subtract(v1, v2)); |
1779 |
checkCompletedNormally(f, v1); |
1780 |
checkCompletedNormally(g, v2); |
1781 |
}} |
1782 |
|
1783 |
/** |
1784 |
* thenAcceptBoth result completes exceptionally after exceptional |
1785 |
* completion of either source |
1786 |
*/ |
1787 |
public void testThenAcceptBoth_exceptionalCompletion() throws Throwable { |
1788 |
for (ExecutionMode m : ExecutionMode.values()) |
1789 |
for (boolean fFirst : new boolean[] { true, false }) |
1790 |
for (boolean failFirst : new boolean[] { true, false }) |
1791 |
for (Integer v1 : new Integer[] { 1, null }) |
1792 |
{ |
1793 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1794 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1795 |
final CFException ex = new CFException(); |
1796 |
final SubtractAction r1 = new SubtractAction(m); |
1797 |
final SubtractAction r2 = new SubtractAction(m); |
1798 |
final SubtractAction r3 = new SubtractAction(m); |
1799 |
|
1800 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1801 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1802 |
final Callable<Boolean> complete1 = failFirst ? |
1803 |
() -> fst.completeExceptionally(ex) : |
1804 |
() -> fst.complete(v1); |
1805 |
final Callable<Boolean> complete2 = failFirst ? |
1806 |
() -> snd.complete(v1) : |
1807 |
() -> snd.completeExceptionally(ex); |
1808 |
|
1809 |
final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1); |
1810 |
assertTrue(complete1.call()); |
1811 |
final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2); |
1812 |
checkIncomplete(h1); |
1813 |
checkIncomplete(h2); |
1814 |
assertTrue(complete2.call()); |
1815 |
final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3); |
1816 |
|
1817 |
checkCompletedWithWrappedException(h1, ex); |
1818 |
checkCompletedWithWrappedException(h2, ex); |
1819 |
checkCompletedWithWrappedException(h3, ex); |
1820 |
r1.assertNotInvoked(); |
1821 |
r2.assertNotInvoked(); |
1822 |
r3.assertNotInvoked(); |
1823 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
1824 |
checkCompletedExceptionally(failFirst ? fst : snd, ex); |
1825 |
}} |
1826 |
|
1827 |
/** |
1828 |
* thenAcceptBoth result completes exceptionally if either source cancelled |
1829 |
*/ |
1830 |
public void testThenAcceptBoth_sourceCancelled() throws Throwable { |
1831 |
for (ExecutionMode m : ExecutionMode.values()) |
1832 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1833 |
for (boolean fFirst : new boolean[] { true, false }) |
1834 |
for (boolean failFirst : new boolean[] { true, false }) |
1835 |
for (Integer v1 : new Integer[] { 1, null }) |
1836 |
{ |
1837 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1838 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1839 |
final SubtractAction r1 = new SubtractAction(m); |
1840 |
final SubtractAction r2 = new SubtractAction(m); |
1841 |
final SubtractAction r3 = new SubtractAction(m); |
1842 |
|
1843 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1844 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1845 |
final Callable<Boolean> complete1 = failFirst ? |
1846 |
() -> fst.cancel(mayInterruptIfRunning) : |
1847 |
() -> fst.complete(v1); |
1848 |
final Callable<Boolean> complete2 = failFirst ? |
1849 |
() -> snd.complete(v1) : |
1850 |
() -> snd.cancel(mayInterruptIfRunning); |
1851 |
|
1852 |
final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1); |
1853 |
assertTrue(complete1.call()); |
1854 |
final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2); |
1855 |
checkIncomplete(h1); |
1856 |
checkIncomplete(h2); |
1857 |
assertTrue(complete2.call()); |
1858 |
final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3); |
1859 |
|
1860 |
checkCompletedWithWrappedCancellationException(h1); |
1861 |
checkCompletedWithWrappedCancellationException(h2); |
1862 |
checkCompletedWithWrappedCancellationException(h3); |
1863 |
r1.assertNotInvoked(); |
1864 |
r2.assertNotInvoked(); |
1865 |
r3.assertNotInvoked(); |
1866 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
1867 |
checkCancelled(failFirst ? fst : snd); |
1868 |
}} |
1869 |
|
1870 |
/** |
1871 |
* thenAcceptBoth result completes exceptionally if action does |
1872 |
*/ |
1873 |
public void testThenAcceptBoth_actionFailed() { |
1874 |
for (ExecutionMode m : ExecutionMode.values()) |
1875 |
for (boolean fFirst : new boolean[] { true, false }) |
1876 |
for (Integer v1 : new Integer[] { 1, null }) |
1877 |
for (Integer v2 : new Integer[] { 2, null }) |
1878 |
{ |
1879 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1880 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1881 |
final FailingBiConsumer r1 = new FailingBiConsumer(m); |
1882 |
final FailingBiConsumer r2 = new FailingBiConsumer(m); |
1883 |
final FailingBiConsumer r3 = new FailingBiConsumer(m); |
1884 |
|
1885 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1886 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1887 |
final Integer w1 = fFirst ? v1 : v2; |
1888 |
final Integer w2 = !fFirst ? v1 : v2; |
1889 |
|
1890 |
final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1); |
1891 |
assertTrue(fst.complete(w1)); |
1892 |
final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2); |
1893 |
assertTrue(snd.complete(w2)); |
1894 |
final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3); |
1895 |
|
1896 |
checkCompletedWithWrappedCFException(h1); |
1897 |
checkCompletedWithWrappedCFException(h2); |
1898 |
checkCompletedWithWrappedCFException(h3); |
1899 |
r1.assertInvoked(); |
1900 |
r2.assertInvoked(); |
1901 |
r3.assertInvoked(); |
1902 |
checkCompletedNormally(f, v1); |
1903 |
checkCompletedNormally(g, v2); |
1904 |
}} |
1905 |
|
1906 |
/** |
1907 |
* runAfterBoth result completes normally after normal |
1908 |
* completion of sources |
1909 |
*/ |
1910 |
public void testRunAfterBoth_normalCompletion() { |
1911 |
for (ExecutionMode m : ExecutionMode.values()) |
1912 |
for (boolean fFirst : new boolean[] { true, false }) |
1913 |
for (Integer v1 : new Integer[] { 1, null }) |
1914 |
for (Integer v2 : new Integer[] { 2, null }) |
1915 |
{ |
1916 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1917 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1918 |
final Noop r1 = new Noop(m); |
1919 |
final Noop r2 = new Noop(m); |
1920 |
final Noop r3 = new Noop(m); |
1921 |
|
1922 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1923 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1924 |
final Integer w1 = fFirst ? v1 : v2; |
1925 |
final Integer w2 = !fFirst ? v1 : v2; |
1926 |
|
1927 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1); |
1928 |
assertTrue(fst.complete(w1)); |
1929 |
final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2); |
1930 |
checkIncomplete(h1); |
1931 |
checkIncomplete(h2); |
1932 |
r1.assertNotInvoked(); |
1933 |
r2.assertNotInvoked(); |
1934 |
assertTrue(snd.complete(w2)); |
1935 |
final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3); |
1936 |
|
1937 |
checkCompletedNormally(h1, null); |
1938 |
checkCompletedNormally(h2, null); |
1939 |
checkCompletedNormally(h3, null); |
1940 |
r1.assertInvoked(); |
1941 |
r2.assertInvoked(); |
1942 |
r3.assertInvoked(); |
1943 |
checkCompletedNormally(f, v1); |
1944 |
checkCompletedNormally(g, v2); |
1945 |
}} |
1946 |
|
1947 |
/** |
1948 |
* runAfterBoth result completes exceptionally after exceptional |
1949 |
* completion of either source |
1950 |
*/ |
1951 |
public void testRunAfterBoth_exceptionalCompletion() throws Throwable { |
1952 |
for (ExecutionMode m : ExecutionMode.values()) |
1953 |
for (boolean fFirst : new boolean[] { true, false }) |
1954 |
for (boolean failFirst : new boolean[] { true, false }) |
1955 |
for (Integer v1 : new Integer[] { 1, null }) |
1956 |
{ |
1957 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
1958 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
1959 |
final CFException ex = new CFException(); |
1960 |
final Noop r1 = new Noop(m); |
1961 |
final Noop r2 = new Noop(m); |
1962 |
final Noop r3 = new Noop(m); |
1963 |
|
1964 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
1965 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
1966 |
final Callable<Boolean> complete1 = failFirst ? |
1967 |
() -> fst.completeExceptionally(ex) : |
1968 |
() -> fst.complete(v1); |
1969 |
final Callable<Boolean> complete2 = failFirst ? |
1970 |
() -> snd.complete(v1) : |
1971 |
() -> snd.completeExceptionally(ex); |
1972 |
|
1973 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1); |
1974 |
assertTrue(complete1.call()); |
1975 |
final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2); |
1976 |
checkIncomplete(h1); |
1977 |
checkIncomplete(h2); |
1978 |
assertTrue(complete2.call()); |
1979 |
final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3); |
1980 |
|
1981 |
checkCompletedWithWrappedException(h1, ex); |
1982 |
checkCompletedWithWrappedException(h2, ex); |
1983 |
checkCompletedWithWrappedException(h3, ex); |
1984 |
r1.assertNotInvoked(); |
1985 |
r2.assertNotInvoked(); |
1986 |
r3.assertNotInvoked(); |
1987 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
1988 |
checkCompletedExceptionally(failFirst ? fst : snd, ex); |
1989 |
}} |
1990 |
|
1991 |
/** |
1992 |
* runAfterBoth result completes exceptionally if either source cancelled |
1993 |
*/ |
1994 |
public void testRunAfterBoth_sourceCancelled() throws Throwable { |
1995 |
for (ExecutionMode m : ExecutionMode.values()) |
1996 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
1997 |
for (boolean fFirst : new boolean[] { true, false }) |
1998 |
for (boolean failFirst : new boolean[] { true, false }) |
1999 |
for (Integer v1 : new Integer[] { 1, null }) |
2000 |
{ |
2001 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2002 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2003 |
final Noop r1 = new Noop(m); |
2004 |
final Noop r2 = new Noop(m); |
2005 |
final Noop r3 = new Noop(m); |
2006 |
|
2007 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
2008 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
2009 |
final Callable<Boolean> complete1 = failFirst ? |
2010 |
() -> fst.cancel(mayInterruptIfRunning) : |
2011 |
() -> fst.complete(v1); |
2012 |
final Callable<Boolean> complete2 = failFirst ? |
2013 |
() -> snd.complete(v1) : |
2014 |
() -> snd.cancel(mayInterruptIfRunning); |
2015 |
|
2016 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1); |
2017 |
assertTrue(complete1.call()); |
2018 |
final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2); |
2019 |
checkIncomplete(h1); |
2020 |
checkIncomplete(h2); |
2021 |
assertTrue(complete2.call()); |
2022 |
final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3); |
2023 |
|
2024 |
checkCompletedWithWrappedCancellationException(h1); |
2025 |
checkCompletedWithWrappedCancellationException(h2); |
2026 |
checkCompletedWithWrappedCancellationException(h3); |
2027 |
r1.assertNotInvoked(); |
2028 |
r2.assertNotInvoked(); |
2029 |
r3.assertNotInvoked(); |
2030 |
checkCompletedNormally(failFirst ? snd : fst, v1); |
2031 |
checkCancelled(failFirst ? fst : snd); |
2032 |
}} |
2033 |
|
2034 |
/** |
2035 |
* runAfterBoth result completes exceptionally if action does |
2036 |
*/ |
2037 |
public void testRunAfterBoth_actionFailed() { |
2038 |
for (ExecutionMode m : ExecutionMode.values()) |
2039 |
for (boolean fFirst : new boolean[] { true, false }) |
2040 |
for (Integer v1 : new Integer[] { 1, null }) |
2041 |
for (Integer v2 : new Integer[] { 2, null }) |
2042 |
{ |
2043 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2044 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2045 |
final FailingRunnable r1 = new FailingRunnable(m); |
2046 |
final FailingRunnable r2 = new FailingRunnable(m); |
2047 |
final FailingRunnable r3 = new FailingRunnable(m); |
2048 |
|
2049 |
final CompletableFuture<Integer> fst = fFirst ? f : g; |
2050 |
final CompletableFuture<Integer> snd = !fFirst ? f : g; |
2051 |
final Integer w1 = fFirst ? v1 : v2; |
2052 |
final Integer w2 = !fFirst ? v1 : v2; |
2053 |
|
2054 |
final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1); |
2055 |
assertTrue(fst.complete(w1)); |
2056 |
final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2); |
2057 |
assertTrue(snd.complete(w2)); |
2058 |
final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3); |
2059 |
|
2060 |
checkCompletedWithWrappedCFException(h1); |
2061 |
checkCompletedWithWrappedCFException(h2); |
2062 |
checkCompletedWithWrappedCFException(h3); |
2063 |
r1.assertInvoked(); |
2064 |
r2.assertInvoked(); |
2065 |
r3.assertInvoked(); |
2066 |
checkCompletedNormally(f, v1); |
2067 |
checkCompletedNormally(g, v2); |
2068 |
}} |
2069 |
|
2070 |
/** |
2071 |
* applyToEither result completes normally after normal completion |
2072 |
* of either source |
2073 |
*/ |
2074 |
public void testApplyToEither_normalCompletion() { |
2075 |
for (ExecutionMode m : ExecutionMode.values()) |
2076 |
for (Integer v1 : new Integer[] { 1, null }) |
2077 |
for (Integer v2 : new Integer[] { 2, null }) |
2078 |
{ |
2079 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2080 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2081 |
final IncFunction[] rs = new IncFunction[6]; |
2082 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
2083 |
|
2084 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2085 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2086 |
checkIncomplete(h0); |
2087 |
checkIncomplete(h1); |
2088 |
rs[0].assertNotInvoked(); |
2089 |
rs[1].assertNotInvoked(); |
2090 |
f.complete(v1); |
2091 |
checkCompletedNormally(h0, inc(v1)); |
2092 |
checkCompletedNormally(h1, inc(v1)); |
2093 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2094 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2095 |
checkCompletedNormally(h2, inc(v1)); |
2096 |
checkCompletedNormally(h3, inc(v1)); |
2097 |
g.complete(v2); |
2098 |
|
2099 |
// unspecified behavior - both source completions available |
2100 |
final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]); |
2101 |
final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]); |
2102 |
rs[4].assertValue(h4.join()); |
2103 |
rs[5].assertValue(h5.join()); |
2104 |
assertTrue(Objects.equals(inc(v1), h4.join()) || |
2105 |
Objects.equals(inc(v2), h4.join())); |
2106 |
assertTrue(Objects.equals(inc(v1), h5.join()) || |
2107 |
Objects.equals(inc(v2), h5.join())); |
2108 |
|
2109 |
checkCompletedNormally(f, v1); |
2110 |
checkCompletedNormally(g, v2); |
2111 |
checkCompletedNormally(h0, inc(v1)); |
2112 |
checkCompletedNormally(h1, inc(v1)); |
2113 |
checkCompletedNormally(h2, inc(v1)); |
2114 |
checkCompletedNormally(h3, inc(v1)); |
2115 |
for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1)); |
2116 |
}} |
2117 |
|
2118 |
/** |
2119 |
* applyToEither result completes exceptionally after exceptional |
2120 |
* completion of either source |
2121 |
*/ |
2122 |
public void testApplyToEither_exceptionalCompletion() { |
2123 |
for (ExecutionMode m : ExecutionMode.values()) |
2124 |
for (Integer v1 : new Integer[] { 1, null }) |
2125 |
{ |
2126 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2127 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2128 |
final CFException ex = new CFException(); |
2129 |
final IncFunction[] rs = new IncFunction[6]; |
2130 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
2131 |
|
2132 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2133 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2134 |
checkIncomplete(h0); |
2135 |
checkIncomplete(h1); |
2136 |
rs[0].assertNotInvoked(); |
2137 |
rs[1].assertNotInvoked(); |
2138 |
f.completeExceptionally(ex); |
2139 |
checkCompletedWithWrappedException(h0, ex); |
2140 |
checkCompletedWithWrappedException(h1, ex); |
2141 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2142 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2143 |
checkCompletedWithWrappedException(h2, ex); |
2144 |
checkCompletedWithWrappedException(h3, ex); |
2145 |
g.complete(v1); |
2146 |
|
2147 |
// unspecified behavior - both source completions available |
2148 |
final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]); |
2149 |
final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]); |
2150 |
try { |
2151 |
assertEquals(inc(v1), h4.join()); |
2152 |
rs[4].assertValue(inc(v1)); |
2153 |
} catch (CompletionException ok) { |
2154 |
checkCompletedWithWrappedException(h4, ex); |
2155 |
rs[4].assertNotInvoked(); |
2156 |
} |
2157 |
try { |
2158 |
assertEquals(inc(v1), h5.join()); |
2159 |
rs[5].assertValue(inc(v1)); |
2160 |
} catch (CompletionException ok) { |
2161 |
checkCompletedWithWrappedException(h5, ex); |
2162 |
rs[5].assertNotInvoked(); |
2163 |
} |
2164 |
|
2165 |
checkCompletedExceptionally(f, ex); |
2166 |
checkCompletedNormally(g, v1); |
2167 |
checkCompletedWithWrappedException(h0, ex); |
2168 |
checkCompletedWithWrappedException(h1, ex); |
2169 |
checkCompletedWithWrappedException(h2, ex); |
2170 |
checkCompletedWithWrappedException(h3, ex); |
2171 |
checkCompletedWithWrappedException(h4, ex); |
2172 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2173 |
}} |
2174 |
|
2175 |
public void testApplyToEither_exceptionalCompletion2() { |
2176 |
for (ExecutionMode m : ExecutionMode.values()) |
2177 |
for (boolean fFirst : new boolean[] { true, false }) |
2178 |
for (Integer v1 : new Integer[] { 1, null }) |
2179 |
{ |
2180 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2181 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2182 |
final CFException ex = new CFException(); |
2183 |
final IncFunction[] rs = new IncFunction[6]; |
2184 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
2185 |
|
2186 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2187 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2188 |
assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2189 |
assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2190 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2191 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2192 |
|
2193 |
// unspecified behavior - both source completions available |
2194 |
try { |
2195 |
assertEquals(inc(v1), h0.join()); |
2196 |
rs[0].assertValue(inc(v1)); |
2197 |
} catch (CompletionException ok) { |
2198 |
checkCompletedWithWrappedException(h0, ex); |
2199 |
rs[0].assertNotInvoked(); |
2200 |
} |
2201 |
try { |
2202 |
assertEquals(inc(v1), h1.join()); |
2203 |
rs[1].assertValue(inc(v1)); |
2204 |
} catch (CompletionException ok) { |
2205 |
checkCompletedWithWrappedException(h1, ex); |
2206 |
rs[1].assertNotInvoked(); |
2207 |
} |
2208 |
try { |
2209 |
assertEquals(inc(v1), h2.join()); |
2210 |
rs[2].assertValue(inc(v1)); |
2211 |
} catch (CompletionException ok) { |
2212 |
checkCompletedWithWrappedException(h2, ex); |
2213 |
rs[2].assertNotInvoked(); |
2214 |
} |
2215 |
try { |
2216 |
assertEquals(inc(v1), h3.join()); |
2217 |
rs[3].assertValue(inc(v1)); |
2218 |
} catch (CompletionException ok) { |
2219 |
checkCompletedWithWrappedException(h3, ex); |
2220 |
rs[3].assertNotInvoked(); |
2221 |
} |
2222 |
|
2223 |
checkCompletedNormally(f, v1); |
2224 |
checkCompletedExceptionally(g, ex); |
2225 |
}} |
2226 |
|
2227 |
/** |
2228 |
* applyToEither result completes exceptionally if either source cancelled |
2229 |
*/ |
2230 |
public void testApplyToEither_sourceCancelled() { |
2231 |
for (ExecutionMode m : ExecutionMode.values()) |
2232 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
2233 |
for (Integer v1 : new Integer[] { 1, null }) |
2234 |
{ |
2235 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2236 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2237 |
final IncFunction[] rs = new IncFunction[6]; |
2238 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
2239 |
|
2240 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2241 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2242 |
checkIncomplete(h0); |
2243 |
checkIncomplete(h1); |
2244 |
rs[0].assertNotInvoked(); |
2245 |
rs[1].assertNotInvoked(); |
2246 |
f.cancel(mayInterruptIfRunning); |
2247 |
checkCompletedWithWrappedCancellationException(h0); |
2248 |
checkCompletedWithWrappedCancellationException(h1); |
2249 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2250 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2251 |
checkCompletedWithWrappedCancellationException(h2); |
2252 |
checkCompletedWithWrappedCancellationException(h3); |
2253 |
g.complete(v1); |
2254 |
|
2255 |
// unspecified behavior - both source completions available |
2256 |
final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]); |
2257 |
final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]); |
2258 |
try { |
2259 |
assertEquals(inc(v1), h4.join()); |
2260 |
rs[4].assertValue(inc(v1)); |
2261 |
} catch (CompletionException ok) { |
2262 |
checkCompletedWithWrappedCancellationException(h4); |
2263 |
rs[4].assertNotInvoked(); |
2264 |
} |
2265 |
try { |
2266 |
assertEquals(inc(v1), h5.join()); |
2267 |
rs[5].assertValue(inc(v1)); |
2268 |
} catch (CompletionException ok) { |
2269 |
checkCompletedWithWrappedCancellationException(h5); |
2270 |
rs[5].assertNotInvoked(); |
2271 |
} |
2272 |
|
2273 |
checkCancelled(f); |
2274 |
checkCompletedNormally(g, v1); |
2275 |
checkCompletedWithWrappedCancellationException(h0); |
2276 |
checkCompletedWithWrappedCancellationException(h1); |
2277 |
checkCompletedWithWrappedCancellationException(h2); |
2278 |
checkCompletedWithWrappedCancellationException(h3); |
2279 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2280 |
}} |
2281 |
|
2282 |
public void testApplyToEither_sourceCancelled2() { |
2283 |
for (ExecutionMode m : ExecutionMode.values()) |
2284 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
2285 |
for (boolean fFirst : new boolean[] { true, false }) |
2286 |
for (Integer v1 : new Integer[] { 1, null }) |
2287 |
{ |
2288 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2289 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2290 |
final IncFunction[] rs = new IncFunction[6]; |
2291 |
for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); |
2292 |
|
2293 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2294 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2295 |
assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning)); |
2296 |
assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning)); |
2297 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2298 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2299 |
|
2300 |
// unspecified behavior - both source completions available |
2301 |
try { |
2302 |
assertEquals(inc(v1), h0.join()); |
2303 |
rs[0].assertValue(inc(v1)); |
2304 |
} catch (CompletionException ok) { |
2305 |
checkCompletedWithWrappedCancellationException(h0); |
2306 |
rs[0].assertNotInvoked(); |
2307 |
} |
2308 |
try { |
2309 |
assertEquals(inc(v1), h1.join()); |
2310 |
rs[1].assertValue(inc(v1)); |
2311 |
} catch (CompletionException ok) { |
2312 |
checkCompletedWithWrappedCancellationException(h1); |
2313 |
rs[1].assertNotInvoked(); |
2314 |
} |
2315 |
try { |
2316 |
assertEquals(inc(v1), h2.join()); |
2317 |
rs[2].assertValue(inc(v1)); |
2318 |
} catch (CompletionException ok) { |
2319 |
checkCompletedWithWrappedCancellationException(h2); |
2320 |
rs[2].assertNotInvoked(); |
2321 |
} |
2322 |
try { |
2323 |
assertEquals(inc(v1), h3.join()); |
2324 |
rs[3].assertValue(inc(v1)); |
2325 |
} catch (CompletionException ok) { |
2326 |
checkCompletedWithWrappedCancellationException(h3); |
2327 |
rs[3].assertNotInvoked(); |
2328 |
} |
2329 |
|
2330 |
checkCompletedNormally(f, v1); |
2331 |
checkCancelled(g); |
2332 |
}} |
2333 |
|
2334 |
/** |
2335 |
* applyToEither result completes exceptionally if action does |
2336 |
*/ |
2337 |
public void testApplyToEither_actionFailed() { |
2338 |
for (ExecutionMode m : ExecutionMode.values()) |
2339 |
for (Integer v1 : new Integer[] { 1, null }) |
2340 |
for (Integer v2 : new Integer[] { 2, null }) |
2341 |
{ |
2342 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2343 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2344 |
final FailingFunction[] rs = new FailingFunction[6]; |
2345 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m); |
2346 |
|
2347 |
final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]); |
2348 |
final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]); |
2349 |
f.complete(v1); |
2350 |
final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]); |
2351 |
final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]); |
2352 |
checkCompletedWithWrappedCFException(h0); |
2353 |
checkCompletedWithWrappedCFException(h1); |
2354 |
checkCompletedWithWrappedCFException(h2); |
2355 |
checkCompletedWithWrappedCFException(h3); |
2356 |
for (int i = 0; i < 4; i++) rs[i].assertValue(v1); |
2357 |
|
2358 |
g.complete(v2); |
2359 |
|
2360 |
// unspecified behavior - both source completions available |
2361 |
final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]); |
2362 |
final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]); |
2363 |
|
2364 |
checkCompletedWithWrappedCFException(h4); |
2365 |
assertTrue(Objects.equals(v1, rs[4].value) || |
2366 |
Objects.equals(v2, rs[4].value)); |
2367 |
checkCompletedWithWrappedCFException(h5); |
2368 |
assertTrue(Objects.equals(v1, rs[5].value) || |
2369 |
Objects.equals(v2, rs[5].value)); |
2370 |
|
2371 |
checkCompletedNormally(f, v1); |
2372 |
checkCompletedNormally(g, v2); |
2373 |
}} |
2374 |
|
2375 |
/** |
2376 |
* acceptEither result completes normally after normal completion |
2377 |
* of either source |
2378 |
*/ |
2379 |
public void testAcceptEither_normalCompletion() { |
2380 |
for (ExecutionMode m : ExecutionMode.values()) |
2381 |
for (Integer v1 : new Integer[] { 1, null }) |
2382 |
for (Integer v2 : new Integer[] { 2, null }) |
2383 |
{ |
2384 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2385 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2386 |
final NoopConsumer[] rs = new NoopConsumer[6]; |
2387 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
2388 |
|
2389 |
final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]); |
2390 |
final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]); |
2391 |
checkIncomplete(h0); |
2392 |
checkIncomplete(h1); |
2393 |
rs[0].assertNotInvoked(); |
2394 |
rs[1].assertNotInvoked(); |
2395 |
f.complete(v1); |
2396 |
checkCompletedNormally(h0, null); |
2397 |
checkCompletedNormally(h1, null); |
2398 |
rs[0].assertValue(v1); |
2399 |
rs[1].assertValue(v1); |
2400 |
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2401 |
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2402 |
checkCompletedNormally(h2, null); |
2403 |
checkCompletedNormally(h3, null); |
2404 |
rs[2].assertValue(v1); |
2405 |
rs[3].assertValue(v1); |
2406 |
g.complete(v2); |
2407 |
|
2408 |
// unspecified behavior - both source completions available |
2409 |
final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]); |
2410 |
final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]); |
2411 |
checkCompletedNormally(h4, null); |
2412 |
checkCompletedNormally(h5, null); |
2413 |
assertTrue(Objects.equals(v1, rs[4].value) || |
2414 |
Objects.equals(v2, rs[4].value)); |
2415 |
assertTrue(Objects.equals(v1, rs[5].value) || |
2416 |
Objects.equals(v2, rs[5].value)); |
2417 |
|
2418 |
checkCompletedNormally(f, v1); |
2419 |
checkCompletedNormally(g, v2); |
2420 |
checkCompletedNormally(h0, null); |
2421 |
checkCompletedNormally(h1, null); |
2422 |
checkCompletedNormally(h2, null); |
2423 |
checkCompletedNormally(h3, null); |
2424 |
for (int i = 0; i < 4; i++) rs[i].assertValue(v1); |
2425 |
}} |
2426 |
|
2427 |
/** |
2428 |
* acceptEither result completes exceptionally after exceptional |
2429 |
* completion of either source |
2430 |
*/ |
2431 |
public void testAcceptEither_exceptionalCompletion() { |
2432 |
for (ExecutionMode m : ExecutionMode.values()) |
2433 |
for (Integer v1 : new Integer[] { 1, null }) |
2434 |
{ |
2435 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2436 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2437 |
final CFException ex = new CFException(); |
2438 |
final NoopConsumer[] rs = new NoopConsumer[6]; |
2439 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
2440 |
|
2441 |
final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]); |
2442 |
final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]); |
2443 |
checkIncomplete(h0); |
2444 |
checkIncomplete(h1); |
2445 |
rs[0].assertNotInvoked(); |
2446 |
rs[1].assertNotInvoked(); |
2447 |
f.completeExceptionally(ex); |
2448 |
checkCompletedWithWrappedException(h0, ex); |
2449 |
checkCompletedWithWrappedException(h1, ex); |
2450 |
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2451 |
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2452 |
checkCompletedWithWrappedException(h2, ex); |
2453 |
checkCompletedWithWrappedException(h3, ex); |
2454 |
|
2455 |
g.complete(v1); |
2456 |
|
2457 |
// unspecified behavior - both source completions available |
2458 |
final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]); |
2459 |
final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]); |
2460 |
try { |
2461 |
assertNull(h4.join()); |
2462 |
rs[4].assertValue(v1); |
2463 |
} catch (CompletionException ok) { |
2464 |
checkCompletedWithWrappedException(h4, ex); |
2465 |
rs[4].assertNotInvoked(); |
2466 |
} |
2467 |
try { |
2468 |
assertNull(h5.join()); |
2469 |
rs[5].assertValue(v1); |
2470 |
} catch (CompletionException ok) { |
2471 |
checkCompletedWithWrappedException(h5, ex); |
2472 |
rs[5].assertNotInvoked(); |
2473 |
} |
2474 |
|
2475 |
checkCompletedExceptionally(f, ex); |
2476 |
checkCompletedNormally(g, v1); |
2477 |
checkCompletedWithWrappedException(h0, ex); |
2478 |
checkCompletedWithWrappedException(h1, ex); |
2479 |
checkCompletedWithWrappedException(h2, ex); |
2480 |
checkCompletedWithWrappedException(h3, ex); |
2481 |
checkCompletedWithWrappedException(h4, ex); |
2482 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2483 |
}} |
2484 |
|
2485 |
public void testAcceptEither_exceptionalCompletion2() { |
2486 |
for (ExecutionMode m : ExecutionMode.values()) |
2487 |
for (boolean fFirst : new boolean[] { true, false }) |
2488 |
for (Integer v1 : new Integer[] { 1, null }) |
2489 |
{ |
2490 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2491 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2492 |
final CFException ex = new CFException(); |
2493 |
final NoopConsumer[] rs = new NoopConsumer[6]; |
2494 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
2495 |
|
2496 |
final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]); |
2497 |
final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]); |
2498 |
assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2499 |
assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2500 |
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2501 |
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2502 |
|
2503 |
// unspecified behavior - both source completions available |
2504 |
try { |
2505 |
assertEquals(null, h0.join()); |
2506 |
rs[0].assertValue(v1); |
2507 |
} catch (CompletionException ok) { |
2508 |
checkCompletedWithWrappedException(h0, ex); |
2509 |
rs[0].assertNotInvoked(); |
2510 |
} |
2511 |
try { |
2512 |
assertEquals(null, h1.join()); |
2513 |
rs[1].assertValue(v1); |
2514 |
} catch (CompletionException ok) { |
2515 |
checkCompletedWithWrappedException(h1, ex); |
2516 |
rs[1].assertNotInvoked(); |
2517 |
} |
2518 |
try { |
2519 |
assertEquals(null, h2.join()); |
2520 |
rs[2].assertValue(v1); |
2521 |
} catch (CompletionException ok) { |
2522 |
checkCompletedWithWrappedException(h2, ex); |
2523 |
rs[2].assertNotInvoked(); |
2524 |
} |
2525 |
try { |
2526 |
assertEquals(null, h3.join()); |
2527 |
rs[3].assertValue(v1); |
2528 |
} catch (CompletionException ok) { |
2529 |
checkCompletedWithWrappedException(h3, ex); |
2530 |
rs[3].assertNotInvoked(); |
2531 |
} |
2532 |
|
2533 |
checkCompletedNormally(f, v1); |
2534 |
checkCompletedExceptionally(g, ex); |
2535 |
}} |
2536 |
|
2537 |
/** |
2538 |
* acceptEither result completes exceptionally if either source cancelled |
2539 |
*/ |
2540 |
public void testAcceptEither_sourceCancelled() { |
2541 |
for (ExecutionMode m : ExecutionMode.values()) |
2542 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
2543 |
for (Integer v1 : new Integer[] { 1, null }) |
2544 |
{ |
2545 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2546 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2547 |
final NoopConsumer[] rs = new NoopConsumer[6]; |
2548 |
for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); |
2549 |
|
2550 |
final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]); |
2551 |
final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]); |
2552 |
checkIncomplete(h0); |
2553 |
checkIncomplete(h1); |
2554 |
rs[0].assertNotInvoked(); |
2555 |
rs[1].assertNotInvoked(); |
2556 |
f.cancel(mayInterruptIfRunning); |
2557 |
checkCompletedWithWrappedCancellationException(h0); |
2558 |
checkCompletedWithWrappedCancellationException(h1); |
2559 |
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2560 |
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2561 |
checkCompletedWithWrappedCancellationException(h2); |
2562 |
checkCompletedWithWrappedCancellationException(h3); |
2563 |
|
2564 |
g.complete(v1); |
2565 |
|
2566 |
// unspecified behavior - both source completions available |
2567 |
final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]); |
2568 |
final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]); |
2569 |
try { |
2570 |
assertNull(h4.join()); |
2571 |
rs[4].assertValue(v1); |
2572 |
} catch (CompletionException ok) { |
2573 |
checkCompletedWithWrappedCancellationException(h4); |
2574 |
rs[4].assertNotInvoked(); |
2575 |
} |
2576 |
try { |
2577 |
assertNull(h5.join()); |
2578 |
rs[5].assertValue(v1); |
2579 |
} catch (CompletionException ok) { |
2580 |
checkCompletedWithWrappedCancellationException(h5); |
2581 |
rs[5].assertNotInvoked(); |
2582 |
} |
2583 |
|
2584 |
checkCancelled(f); |
2585 |
checkCompletedNormally(g, v1); |
2586 |
checkCompletedWithWrappedCancellationException(h0); |
2587 |
checkCompletedWithWrappedCancellationException(h1); |
2588 |
checkCompletedWithWrappedCancellationException(h2); |
2589 |
checkCompletedWithWrappedCancellationException(h3); |
2590 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2591 |
}} |
2592 |
|
2593 |
/** |
2594 |
* acceptEither result completes exceptionally if action does |
2595 |
*/ |
2596 |
public void testAcceptEither_actionFailed() { |
2597 |
for (ExecutionMode m : ExecutionMode.values()) |
2598 |
for (Integer v1 : new Integer[] { 1, null }) |
2599 |
for (Integer v2 : new Integer[] { 2, null }) |
2600 |
{ |
2601 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2602 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2603 |
final FailingConsumer[] rs = new FailingConsumer[6]; |
2604 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m); |
2605 |
|
2606 |
final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]); |
2607 |
final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]); |
2608 |
f.complete(v1); |
2609 |
final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]); |
2610 |
final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]); |
2611 |
checkCompletedWithWrappedCFException(h0); |
2612 |
checkCompletedWithWrappedCFException(h1); |
2613 |
checkCompletedWithWrappedCFException(h2); |
2614 |
checkCompletedWithWrappedCFException(h3); |
2615 |
for (int i = 0; i < 4; i++) rs[i].assertValue(v1); |
2616 |
|
2617 |
g.complete(v2); |
2618 |
|
2619 |
// unspecified behavior - both source completions available |
2620 |
final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]); |
2621 |
final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]); |
2622 |
|
2623 |
checkCompletedWithWrappedCFException(h4); |
2624 |
assertTrue(Objects.equals(v1, rs[4].value) || |
2625 |
Objects.equals(v2, rs[4].value)); |
2626 |
checkCompletedWithWrappedCFException(h5); |
2627 |
assertTrue(Objects.equals(v1, rs[5].value) || |
2628 |
Objects.equals(v2, rs[5].value)); |
2629 |
|
2630 |
checkCompletedNormally(f, v1); |
2631 |
checkCompletedNormally(g, v2); |
2632 |
}} |
2633 |
|
2634 |
/** |
2635 |
* runAfterEither result completes normally after normal completion |
2636 |
* of either source |
2637 |
*/ |
2638 |
public void testRunAfterEither_normalCompletion() { |
2639 |
for (ExecutionMode m : ExecutionMode.values()) |
2640 |
for (Integer v1 : new Integer[] { 1, null }) |
2641 |
for (Integer v2 : new Integer[] { 2, null }) |
2642 |
{ |
2643 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2644 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2645 |
final Noop[] rs = new Noop[6]; |
2646 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
2647 |
|
2648 |
final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]); |
2649 |
final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]); |
2650 |
checkIncomplete(h0); |
2651 |
checkIncomplete(h1); |
2652 |
rs[0].assertNotInvoked(); |
2653 |
rs[1].assertNotInvoked(); |
2654 |
f.complete(v1); |
2655 |
checkCompletedNormally(h0, null); |
2656 |
checkCompletedNormally(h1, null); |
2657 |
rs[0].assertInvoked(); |
2658 |
rs[1].assertInvoked(); |
2659 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
2660 |
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
2661 |
checkCompletedNormally(h2, null); |
2662 |
checkCompletedNormally(h3, null); |
2663 |
rs[2].assertInvoked(); |
2664 |
rs[3].assertInvoked(); |
2665 |
|
2666 |
g.complete(v2); |
2667 |
|
2668 |
final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]); |
2669 |
final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]); |
2670 |
|
2671 |
checkCompletedNormally(f, v1); |
2672 |
checkCompletedNormally(g, v2); |
2673 |
checkCompletedNormally(h0, null); |
2674 |
checkCompletedNormally(h1, null); |
2675 |
checkCompletedNormally(h2, null); |
2676 |
checkCompletedNormally(h3, null); |
2677 |
checkCompletedNormally(h4, null); |
2678 |
checkCompletedNormally(h5, null); |
2679 |
for (int i = 0; i < 6; i++) rs[i].assertInvoked(); |
2680 |
}} |
2681 |
|
2682 |
/** |
2683 |
* runAfterEither result completes exceptionally after exceptional |
2684 |
* completion of either source |
2685 |
*/ |
2686 |
public void testRunAfterEither_exceptionalCompletion() { |
2687 |
for (ExecutionMode m : ExecutionMode.values()) |
2688 |
for (Integer v1 : new Integer[] { 1, null }) |
2689 |
{ |
2690 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2691 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2692 |
final CFException ex = new CFException(); |
2693 |
final Noop[] rs = new Noop[6]; |
2694 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
2695 |
|
2696 |
final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]); |
2697 |
final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]); |
2698 |
checkIncomplete(h0); |
2699 |
checkIncomplete(h1); |
2700 |
rs[0].assertNotInvoked(); |
2701 |
rs[1].assertNotInvoked(); |
2702 |
assertTrue(f.completeExceptionally(ex)); |
2703 |
checkCompletedWithWrappedException(h0, ex); |
2704 |
checkCompletedWithWrappedException(h1, ex); |
2705 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
2706 |
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
2707 |
checkCompletedWithWrappedException(h2, ex); |
2708 |
checkCompletedWithWrappedException(h3, ex); |
2709 |
|
2710 |
assertTrue(g.complete(v1)); |
2711 |
|
2712 |
// unspecified behavior - both source completions available |
2713 |
final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]); |
2714 |
final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]); |
2715 |
try { |
2716 |
assertNull(h4.join()); |
2717 |
rs[4].assertInvoked(); |
2718 |
} catch (CompletionException ok) { |
2719 |
checkCompletedWithWrappedException(h4, ex); |
2720 |
rs[4].assertNotInvoked(); |
2721 |
} |
2722 |
try { |
2723 |
assertNull(h5.join()); |
2724 |
rs[5].assertInvoked(); |
2725 |
} catch (CompletionException ok) { |
2726 |
checkCompletedWithWrappedException(h5, ex); |
2727 |
rs[5].assertNotInvoked(); |
2728 |
} |
2729 |
|
2730 |
checkCompletedExceptionally(f, ex); |
2731 |
checkCompletedNormally(g, v1); |
2732 |
checkCompletedWithWrappedException(h0, ex); |
2733 |
checkCompletedWithWrappedException(h1, ex); |
2734 |
checkCompletedWithWrappedException(h2, ex); |
2735 |
checkCompletedWithWrappedException(h3, ex); |
2736 |
checkCompletedWithWrappedException(h4, ex); |
2737 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2738 |
}} |
2739 |
|
2740 |
public void testRunAfterEither_exceptionalCompletion2() { |
2741 |
for (ExecutionMode m : ExecutionMode.values()) |
2742 |
for (boolean fFirst : new boolean[] { true, false }) |
2743 |
for (Integer v1 : new Integer[] { 1, null }) |
2744 |
{ |
2745 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2746 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2747 |
final CFException ex = new CFException(); |
2748 |
final Noop[] rs = new Noop[6]; |
2749 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
2750 |
|
2751 |
final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]); |
2752 |
final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]); |
2753 |
assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2754 |
assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); |
2755 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
2756 |
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
2757 |
|
2758 |
// unspecified behavior - both source completions available |
2759 |
try { |
2760 |
assertEquals(null, h0.join()); |
2761 |
rs[0].assertInvoked(); |
2762 |
} catch (CompletionException ok) { |
2763 |
checkCompletedWithWrappedException(h0, ex); |
2764 |
rs[0].assertNotInvoked(); |
2765 |
} |
2766 |
try { |
2767 |
assertEquals(null, h1.join()); |
2768 |
rs[1].assertInvoked(); |
2769 |
} catch (CompletionException ok) { |
2770 |
checkCompletedWithWrappedException(h1, ex); |
2771 |
rs[1].assertNotInvoked(); |
2772 |
} |
2773 |
try { |
2774 |
assertEquals(null, h2.join()); |
2775 |
rs[2].assertInvoked(); |
2776 |
} catch (CompletionException ok) { |
2777 |
checkCompletedWithWrappedException(h2, ex); |
2778 |
rs[2].assertNotInvoked(); |
2779 |
} |
2780 |
try { |
2781 |
assertEquals(null, h3.join()); |
2782 |
rs[3].assertInvoked(); |
2783 |
} catch (CompletionException ok) { |
2784 |
checkCompletedWithWrappedException(h3, ex); |
2785 |
rs[3].assertNotInvoked(); |
2786 |
} |
2787 |
|
2788 |
checkCompletedNormally(f, v1); |
2789 |
checkCompletedExceptionally(g, ex); |
2790 |
}} |
2791 |
|
2792 |
/** |
2793 |
* runAfterEither result completes exceptionally if either source cancelled |
2794 |
*/ |
2795 |
public void testRunAfterEither_sourceCancelled() { |
2796 |
for (ExecutionMode m : ExecutionMode.values()) |
2797 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
2798 |
for (Integer v1 : new Integer[] { 1, null }) |
2799 |
{ |
2800 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2801 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2802 |
final Noop[] rs = new Noop[6]; |
2803 |
for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); |
2804 |
|
2805 |
final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]); |
2806 |
final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]); |
2807 |
checkIncomplete(h0); |
2808 |
checkIncomplete(h1); |
2809 |
rs[0].assertNotInvoked(); |
2810 |
rs[1].assertNotInvoked(); |
2811 |
f.cancel(mayInterruptIfRunning); |
2812 |
checkCompletedWithWrappedCancellationException(h0); |
2813 |
checkCompletedWithWrappedCancellationException(h1); |
2814 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
2815 |
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
2816 |
checkCompletedWithWrappedCancellationException(h2); |
2817 |
checkCompletedWithWrappedCancellationException(h3); |
2818 |
|
2819 |
assertTrue(g.complete(v1)); |
2820 |
|
2821 |
// unspecified behavior - both source completions available |
2822 |
final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]); |
2823 |
final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]); |
2824 |
try { |
2825 |
assertNull(h4.join()); |
2826 |
rs[4].assertInvoked(); |
2827 |
} catch (CompletionException ok) { |
2828 |
checkCompletedWithWrappedCancellationException(h4); |
2829 |
rs[4].assertNotInvoked(); |
2830 |
} |
2831 |
try { |
2832 |
assertNull(h5.join()); |
2833 |
rs[5].assertInvoked(); |
2834 |
} catch (CompletionException ok) { |
2835 |
checkCompletedWithWrappedCancellationException(h5); |
2836 |
rs[5].assertNotInvoked(); |
2837 |
} |
2838 |
|
2839 |
checkCancelled(f); |
2840 |
checkCompletedNormally(g, v1); |
2841 |
checkCompletedWithWrappedCancellationException(h0); |
2842 |
checkCompletedWithWrappedCancellationException(h1); |
2843 |
checkCompletedWithWrappedCancellationException(h2); |
2844 |
checkCompletedWithWrappedCancellationException(h3); |
2845 |
for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); |
2846 |
}} |
2847 |
|
2848 |
/** |
2849 |
* runAfterEither result completes exceptionally if action does |
2850 |
*/ |
2851 |
public void testRunAfterEither_actionFailed() { |
2852 |
for (ExecutionMode m : ExecutionMode.values()) |
2853 |
for (Integer v1 : new Integer[] { 1, null }) |
2854 |
for (Integer v2 : new Integer[] { 2, null }) |
2855 |
{ |
2856 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2857 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2858 |
final FailingRunnable[] rs = new FailingRunnable[6]; |
2859 |
for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m); |
2860 |
|
2861 |
final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]); |
2862 |
final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]); |
2863 |
assertTrue(f.complete(v1)); |
2864 |
final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]); |
2865 |
final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]); |
2866 |
checkCompletedWithWrappedCFException(h0); |
2867 |
checkCompletedWithWrappedCFException(h1); |
2868 |
checkCompletedWithWrappedCFException(h2); |
2869 |
checkCompletedWithWrappedCFException(h3); |
2870 |
for (int i = 0; i < 4; i++) rs[i].assertInvoked(); |
2871 |
assertTrue(g.complete(v2)); |
2872 |
final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]); |
2873 |
final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]); |
2874 |
checkCompletedWithWrappedCFException(h4); |
2875 |
checkCompletedWithWrappedCFException(h5); |
2876 |
|
2877 |
checkCompletedNormally(f, v1); |
2878 |
checkCompletedNormally(g, v2); |
2879 |
for (int i = 0; i < 6; i++) rs[i].assertInvoked(); |
2880 |
}} |
2881 |
|
2882 |
/** |
2883 |
* thenCompose result completes normally after normal completion of source |
2884 |
*/ |
2885 |
public void testThenCompose_normalCompletion() { |
2886 |
for (ExecutionMode m : ExecutionMode.values()) |
2887 |
for (boolean createIncomplete : new boolean[] { true, false }) |
2888 |
for (Integer v1 : new Integer[] { 1, null }) |
2889 |
{ |
2890 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2891 |
final CompletableFutureInc r = new CompletableFutureInc(m); |
2892 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
2893 |
final CompletableFuture<Integer> g = m.thenCompose(f, r); |
2894 |
if (createIncomplete) assertTrue(f.complete(v1)); |
2895 |
|
2896 |
checkCompletedNormally(g, inc(v1)); |
2897 |
checkCompletedNormally(f, v1); |
2898 |
r.assertValue(v1); |
2899 |
}} |
2900 |
|
2901 |
/** |
2902 |
* thenCompose result completes exceptionally after exceptional |
2903 |
* completion of source |
2904 |
*/ |
2905 |
public void testThenCompose_exceptionalCompletion() { |
2906 |
for (ExecutionMode m : ExecutionMode.values()) |
2907 |
for (boolean createIncomplete : new boolean[] { true, false }) |
2908 |
{ |
2909 |
final CFException ex = new CFException(); |
2910 |
final CompletableFutureInc r = new CompletableFutureInc(m); |
2911 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2912 |
if (!createIncomplete) f.completeExceptionally(ex); |
2913 |
final CompletableFuture<Integer> g = m.thenCompose(f, r); |
2914 |
if (createIncomplete) f.completeExceptionally(ex); |
2915 |
|
2916 |
checkCompletedWithWrappedException(g, ex); |
2917 |
checkCompletedExceptionally(f, ex); |
2918 |
r.assertNotInvoked(); |
2919 |
}} |
2920 |
|
2921 |
/** |
2922 |
* thenCompose result completes exceptionally if action does |
2923 |
*/ |
2924 |
public void testThenCompose_actionFailed() { |
2925 |
for (ExecutionMode m : ExecutionMode.values()) |
2926 |
for (boolean createIncomplete : new boolean[] { true, false }) |
2927 |
for (Integer v1 : new Integer[] { 1, null }) |
2928 |
{ |
2929 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2930 |
final FailingCompletableFutureFunction r |
2931 |
= new FailingCompletableFutureFunction(m); |
2932 |
if (!createIncomplete) assertTrue(f.complete(v1)); |
2933 |
final CompletableFuture<Integer> g = m.thenCompose(f, r); |
2934 |
if (createIncomplete) assertTrue(f.complete(v1)); |
2935 |
|
2936 |
checkCompletedWithWrappedCFException(g); |
2937 |
checkCompletedNormally(f, v1); |
2938 |
}} |
2939 |
|
2940 |
/** |
2941 |
* thenCompose result completes exceptionally if source cancelled |
2942 |
*/ |
2943 |
public void testThenCompose_sourceCancelled() { |
2944 |
for (ExecutionMode m : ExecutionMode.values()) |
2945 |
for (boolean createIncomplete : new boolean[] { true, false }) |
2946 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
2947 |
{ |
2948 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2949 |
final CompletableFutureInc r = new CompletableFutureInc(m); |
2950 |
if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); |
2951 |
final CompletableFuture<Integer> g = m.thenCompose(f, r); |
2952 |
if (createIncomplete) { |
2953 |
checkIncomplete(g); |
2954 |
assertTrue(f.cancel(mayInterruptIfRunning)); |
2955 |
} |
2956 |
|
2957 |
checkCompletedWithWrappedCancellationException(g); |
2958 |
checkCancelled(f); |
2959 |
}} |
2960 |
|
2961 |
/** |
2962 |
* thenCompose result completes exceptionally if the result of the action does |
2963 |
*/ |
2964 |
public void testThenCompose_actionReturnsFailingFuture() { |
2965 |
for (ExecutionMode m : ExecutionMode.values()) |
2966 |
for (int order = 0; order < 6; order++) |
2967 |
for (Integer v1 : new Integer[] { 1, null }) |
2968 |
{ |
2969 |
final CFException ex = new CFException(); |
2970 |
final CompletableFuture<Integer> f = new CompletableFuture<>(); |
2971 |
final CompletableFuture<Integer> g = new CompletableFuture<>(); |
2972 |
final CompletableFuture<Integer> h; |
2973 |
// Test all permutations of orders |
2974 |
switch (order) { |
2975 |
case 0: |
2976 |
assertTrue(f.complete(v1)); |
2977 |
assertTrue(g.completeExceptionally(ex)); |
2978 |
h = m.thenCompose(f, (x -> g)); |
2979 |
break; |
2980 |
case 1: |
2981 |
assertTrue(f.complete(v1)); |
2982 |
h = m.thenCompose(f, (x -> g)); |
2983 |
assertTrue(g.completeExceptionally(ex)); |
2984 |
break; |
2985 |
case 2: |
2986 |
assertTrue(g.completeExceptionally(ex)); |
2987 |
assertTrue(f.complete(v1)); |
2988 |
h = m.thenCompose(f, (x -> g)); |
2989 |
break; |
2990 |
case 3: |
2991 |
assertTrue(g.completeExceptionally(ex)); |
2992 |
h = m.thenCompose(f, (x -> g)); |
2993 |
assertTrue(f.complete(v1)); |
2994 |
break; |
2995 |
case 4: |
2996 |
h = m.thenCompose(f, (x -> g)); |
2997 |
assertTrue(f.complete(v1)); |
2998 |
assertTrue(g.completeExceptionally(ex)); |
2999 |
break; |
3000 |
case 5: |
3001 |
h = m.thenCompose(f, (x -> g)); |
3002 |
assertTrue(f.complete(v1)); |
3003 |
assertTrue(g.completeExceptionally(ex)); |
3004 |
break; |
3005 |
default: throw new AssertionError(); |
3006 |
} |
3007 |
|
3008 |
checkCompletedExceptionally(g, ex); |
3009 |
checkCompletedWithWrappedException(h, ex); |
3010 |
checkCompletedNormally(f, v1); |
3011 |
}} |
3012 |
|
3013 |
// other static methods |
3014 |
|
3015 |
/** |
3016 |
* allOf(no component futures) returns a future completed normally |
3017 |
* with the value null |
3018 |
*/ |
3019 |
public void testAllOf_empty() throws Exception { |
3020 |
CompletableFuture<Void> f = CompletableFuture.allOf(); |
3021 |
checkCompletedNormally(f, null); |
3022 |
} |
3023 |
|
3024 |
/** |
3025 |
* allOf returns a future completed normally with the value null |
3026 |
* when all components complete normally |
3027 |
*/ |
3028 |
public void testAllOf_normal() throws Exception { |
3029 |
for (int k = 1; k < 10; k++) { |
3030 |
CompletableFuture<Integer>[] fs |
3031 |
= (CompletableFuture<Integer>[]) new CompletableFuture[k]; |
3032 |
for (int i = 0; i < k; i++) |
3033 |
fs[i] = new CompletableFuture<>(); |
3034 |
CompletableFuture<Void> f = CompletableFuture.allOf(fs); |
3035 |
for (int i = 0; i < k; i++) { |
3036 |
checkIncomplete(f); |
3037 |
checkIncomplete(CompletableFuture.allOf(fs)); |
3038 |
fs[i].complete(one); |
3039 |
} |
3040 |
checkCompletedNormally(f, null); |
3041 |
checkCompletedNormally(CompletableFuture.allOf(fs), null); |
3042 |
} |
3043 |
} |
3044 |
|
3045 |
public void testAllOf_backwards() throws Exception { |
3046 |
for (int k = 1; k < 10; k++) { |
3047 |
CompletableFuture<Integer>[] fs |
3048 |
= (CompletableFuture<Integer>[]) new CompletableFuture[k]; |
3049 |
for (int i = 0; i < k; i++) |
3050 |
fs[i] = new CompletableFuture<>(); |
3051 |
CompletableFuture<Void> f = CompletableFuture.allOf(fs); |
3052 |
for (int i = k - 1; i >= 0; i--) { |
3053 |
checkIncomplete(f); |
3054 |
checkIncomplete(CompletableFuture.allOf(fs)); |
3055 |
fs[i].complete(one); |
3056 |
} |
3057 |
checkCompletedNormally(f, null); |
3058 |
checkCompletedNormally(CompletableFuture.allOf(fs), null); |
3059 |
} |
3060 |
} |
3061 |
|
3062 |
public void testAllOf_exceptional() throws Exception { |
3063 |
for (int k = 1; k < 10; k++) { |
3064 |
CompletableFuture<Integer>[] fs |
3065 |
= (CompletableFuture<Integer>[]) new CompletableFuture[k]; |
3066 |
CFException ex = new CFException(); |
3067 |
for (int i = 0; i < k; i++) |
3068 |
fs[i] = new CompletableFuture<>(); |
3069 |
CompletableFuture<Void> f = CompletableFuture.allOf(fs); |
3070 |
for (int i = 0; i < k; i++) { |
3071 |
checkIncomplete(f); |
3072 |
checkIncomplete(CompletableFuture.allOf(fs)); |
3073 |
if (i != k / 2) { |
3074 |
fs[i].complete(i); |
3075 |
checkCompletedNormally(fs[i], i); |
3076 |
} else { |
3077 |
fs[i].completeExceptionally(ex); |
3078 |
checkCompletedExceptionally(fs[i], ex); |
3079 |
} |
3080 |
} |
3081 |
checkCompletedWithWrappedException(f, ex); |
3082 |
checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex); |
3083 |
} |
3084 |
} |
3085 |
|
3086 |
/** |
3087 |
* anyOf(no component futures) returns an incomplete future |
3088 |
*/ |
3089 |
public void testAnyOf_empty() throws Exception { |
3090 |
for (Integer v1 : new Integer[] { 1, null }) |
3091 |
{ |
3092 |
CompletableFuture<Object> f = CompletableFuture.anyOf(); |
3093 |
checkIncomplete(f); |
3094 |
|
3095 |
f.complete(v1); |
3096 |
checkCompletedNormally(f, v1); |
3097 |
}} |
3098 |
|
3099 |
/** |
3100 |
* anyOf returns a future completed normally with a value when |
3101 |
* a component future does |
3102 |
*/ |
3103 |
public void testAnyOf_normal() throws Exception { |
3104 |
for (int k = 0; k < 10; k++) { |
3105 |
CompletableFuture[] fs = new CompletableFuture[k]; |
3106 |
for (int i = 0; i < k; i++) |
3107 |
fs[i] = new CompletableFuture<>(); |
3108 |
CompletableFuture<Object> f = CompletableFuture.anyOf(fs); |
3109 |
checkIncomplete(f); |
3110 |
for (int i = 0; i < k; i++) { |
3111 |
fs[i].complete(i); |
3112 |
checkCompletedNormally(f, 0); |
3113 |
int x = (int) CompletableFuture.anyOf(fs).join(); |
3114 |
assertTrue(0 <= x && x <= i); |
3115 |
} |
3116 |
} |
3117 |
} |
3118 |
public void testAnyOf_normal_backwards() throws Exception { |
3119 |
for (int k = 0; k < 10; k++) { |
3120 |
CompletableFuture[] fs = new CompletableFuture[k]; |
3121 |
for (int i = 0; i < k; i++) |
3122 |
fs[i] = new CompletableFuture<>(); |
3123 |
CompletableFuture<Object> f = CompletableFuture.anyOf(fs); |
3124 |
checkIncomplete(f); |
3125 |
for (int i = k - 1; i >= 0; i--) { |
3126 |
fs[i].complete(i); |
3127 |
checkCompletedNormally(f, k - 1); |
3128 |
int x = (int) CompletableFuture.anyOf(fs).join(); |
3129 |
assertTrue(i <= x && x <= k - 1); |
3130 |
} |
3131 |
} |
3132 |
} |
3133 |
|
3134 |
/** |
3135 |
* anyOf result completes exceptionally when any component does. |
3136 |
*/ |
3137 |
public void testAnyOf_exceptional() throws Exception { |
3138 |
for (int k = 0; k < 10; k++) { |
3139 |
CompletableFuture[] fs = new CompletableFuture[k]; |
3140 |
CFException[] exs = new CFException[k]; |
3141 |
for (int i = 0; i < k; i++) { |
3142 |
fs[i] = new CompletableFuture<>(); |
3143 |
exs[i] = new CFException(); |
3144 |
} |
3145 |
CompletableFuture<Object> f = CompletableFuture.anyOf(fs); |
3146 |
checkIncomplete(f); |
3147 |
for (int i = 0; i < k; i++) { |
3148 |
fs[i].completeExceptionally(exs[i]); |
3149 |
checkCompletedWithWrappedException(f, exs[0]); |
3150 |
checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs)); |
3151 |
} |
3152 |
} |
3153 |
} |
3154 |
|
3155 |
public void testAnyOf_exceptional_backwards() throws Exception { |
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 = k - 1; i >= 0; i--) { |
3166 |
fs[i].completeExceptionally(exs[i]); |
3167 |
checkCompletedWithWrappedException(f, exs[k - 1]); |
3168 |
checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs)); |
3169 |
} |
3170 |
} |
3171 |
} |
3172 |
|
3173 |
/** |
3174 |
* Completion methods throw NullPointerException with null arguments |
3175 |
*/ |
3176 |
public void testNPE() { |
3177 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3178 |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3179 |
CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null; |
3180 |
ThreadExecutor exec = new ThreadExecutor(); |
3181 |
|
3182 |
Runnable[] throwingActions = { |
3183 |
() -> CompletableFuture.supplyAsync(null), |
3184 |
() -> CompletableFuture.supplyAsync(null, exec), |
3185 |
() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null), |
3186 |
|
3187 |
() -> CompletableFuture.runAsync(null), |
3188 |
() -> CompletableFuture.runAsync(null, exec), |
3189 |
() -> CompletableFuture.runAsync(() -> {}, null), |
3190 |
|
3191 |
() -> f.completeExceptionally(null), |
3192 |
|
3193 |
() -> f.thenApply(null), |
3194 |
() -> f.thenApplyAsync(null), |
3195 |
() -> f.thenApplyAsync((x) -> x, null), |
3196 |
() -> f.thenApplyAsync(null, exec), |
3197 |
|
3198 |
() -> f.thenAccept(null), |
3199 |
() -> f.thenAcceptAsync(null), |
3200 |
() -> f.thenAcceptAsync((x) -> {} , null), |
3201 |
() -> f.thenAcceptAsync(null, exec), |
3202 |
|
3203 |
() -> f.thenRun(null), |
3204 |
() -> f.thenRunAsync(null), |
3205 |
() -> f.thenRunAsync(() -> {} , null), |
3206 |
() -> f.thenRunAsync(null, exec), |
3207 |
|
3208 |
() -> f.thenCombine(g, null), |
3209 |
() -> f.thenCombineAsync(g, null), |
3210 |
() -> f.thenCombineAsync(g, null, exec), |
3211 |
() -> f.thenCombine(nullFuture, (x, y) -> x), |
3212 |
() -> f.thenCombineAsync(nullFuture, (x, y) -> x), |
3213 |
() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec), |
3214 |
() -> f.thenCombineAsync(g, (x, y) -> x, null), |
3215 |
|
3216 |
() -> f.thenAcceptBoth(g, null), |
3217 |
() -> f.thenAcceptBothAsync(g, null), |
3218 |
() -> f.thenAcceptBothAsync(g, null, exec), |
3219 |
() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}), |
3220 |
() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}), |
3221 |
() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec), |
3222 |
() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null), |
3223 |
|
3224 |
() -> f.runAfterBoth(g, null), |
3225 |
() -> f.runAfterBothAsync(g, null), |
3226 |
() -> f.runAfterBothAsync(g, null, exec), |
3227 |
() -> f.runAfterBoth(nullFuture, () -> {}), |
3228 |
() -> f.runAfterBothAsync(nullFuture, () -> {}), |
3229 |
() -> f.runAfterBothAsync(nullFuture, () -> {}, exec), |
3230 |
() -> f.runAfterBothAsync(g, () -> {}, null), |
3231 |
|
3232 |
() -> f.applyToEither(g, null), |
3233 |
() -> f.applyToEitherAsync(g, null), |
3234 |
() -> f.applyToEitherAsync(g, null, exec), |
3235 |
() -> f.applyToEither(nullFuture, (x) -> x), |
3236 |
() -> f.applyToEitherAsync(nullFuture, (x) -> x), |
3237 |
() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec), |
3238 |
() -> f.applyToEitherAsync(g, (x) -> x, null), |
3239 |
|
3240 |
() -> f.acceptEither(g, null), |
3241 |
() -> f.acceptEitherAsync(g, null), |
3242 |
() -> f.acceptEitherAsync(g, null, exec), |
3243 |
() -> f.acceptEither(nullFuture, (x) -> {}), |
3244 |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}), |
3245 |
() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec), |
3246 |
() -> f.acceptEitherAsync(g, (x) -> {}, null), |
3247 |
|
3248 |
() -> f.runAfterEither(g, null), |
3249 |
() -> f.runAfterEitherAsync(g, null), |
3250 |
() -> f.runAfterEitherAsync(g, null, exec), |
3251 |
() -> f.runAfterEither(nullFuture, () -> {}), |
3252 |
() -> f.runAfterEitherAsync(nullFuture, () -> {}), |
3253 |
() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec), |
3254 |
() -> f.runAfterEitherAsync(g, () -> {}, null), |
3255 |
|
3256 |
() -> f.thenCompose(null), |
3257 |
() -> f.thenComposeAsync(null), |
3258 |
() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null), |
3259 |
() -> f.thenComposeAsync(null, exec), |
3260 |
|
3261 |
() -> f.exceptionally(null), |
3262 |
|
3263 |
() -> f.handle(null), |
3264 |
|
3265 |
() -> CompletableFuture.allOf((CompletableFuture<?>)null), |
3266 |
() -> CompletableFuture.allOf((CompletableFuture<?>[])null), |
3267 |
() -> CompletableFuture.allOf(f, null), |
3268 |
() -> CompletableFuture.allOf(null, f), |
3269 |
|
3270 |
() -> CompletableFuture.anyOf((CompletableFuture<?>)null), |
3271 |
() -> CompletableFuture.anyOf((CompletableFuture<?>[])null), |
3272 |
() -> CompletableFuture.anyOf(f, null), |
3273 |
() -> CompletableFuture.anyOf(null, f), |
3274 |
|
3275 |
() -> f.obtrudeException(null), |
3276 |
|
3277 |
() -> CompletableFuture.delayedExecutor(1L, SECONDS, null), |
3278 |
() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()), |
3279 |
() -> CompletableFuture.delayedExecutor(1L, null), |
3280 |
|
3281 |
() -> f.orTimeout(1L, null), |
3282 |
() -> f.completeOnTimeout(42, 1L, null), |
3283 |
|
3284 |
() -> CompletableFuture.failedFuture(null), |
3285 |
() -> CompletableFuture.failedStage(null), |
3286 |
}; |
3287 |
|
3288 |
assertThrows(NullPointerException.class, throwingActions); |
3289 |
assertEquals(0, exec.count.get()); |
3290 |
} |
3291 |
|
3292 |
/** |
3293 |
* toCompletableFuture returns this CompletableFuture. |
3294 |
*/ |
3295 |
public void testToCompletableFuture() { |
3296 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3297 |
assertSame(f, f.toCompletableFuture()); |
3298 |
} |
3299 |
|
3300 |
// jdk9 |
3301 |
|
3302 |
/** |
3303 |
* newIncompleteFuture returns an incomplete CompletableFuture |
3304 |
*/ |
3305 |
public void testNewIncompleteFuture() { |
3306 |
for (Integer v1 : new Integer[] { 1, null }) |
3307 |
{ |
3308 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3309 |
CompletableFuture<Integer> g = f.newIncompleteFuture(); |
3310 |
checkIncomplete(f); |
3311 |
checkIncomplete(g); |
3312 |
f.complete(v1); |
3313 |
checkCompletedNormally(f, v1); |
3314 |
checkIncomplete(g); |
3315 |
g.complete(v1); |
3316 |
checkCompletedNormally(g, v1); |
3317 |
assertSame(g.getClass(), CompletableFuture.class); |
3318 |
}} |
3319 |
|
3320 |
/** |
3321 |
* completedStage returns a completed CompletionStage |
3322 |
*/ |
3323 |
public void testCompletedStage() { |
3324 |
AtomicInteger x = new AtomicInteger(0); |
3325 |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3326 |
CompletionStage<Integer> f = CompletableFuture.completedStage(1); |
3327 |
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3328 |
assertEquals(x.get(), 1); |
3329 |
assertNull(r.get()); |
3330 |
} |
3331 |
|
3332 |
/** |
3333 |
* defaultExecutor by default returns the commonPool if |
3334 |
* it supports more than one thread. |
3335 |
*/ |
3336 |
public void testDefaultExecutor() { |
3337 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3338 |
Executor e = f.defaultExecutor(); |
3339 |
Executor c = ForkJoinPool.commonPool(); |
3340 |
if (ForkJoinPool.getCommonPoolParallelism() > 1) |
3341 |
assertSame(e, c); |
3342 |
else |
3343 |
assertNotSame(e, c); |
3344 |
} |
3345 |
|
3346 |
/** |
3347 |
* failedFuture returns a CompletableFuture completed |
3348 |
* exceptionally with the given Exception |
3349 |
*/ |
3350 |
public void testFailedFuture() { |
3351 |
CFException ex = new CFException(); |
3352 |
CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex); |
3353 |
checkCompletedExceptionally(f, ex); |
3354 |
} |
3355 |
|
3356 |
/** |
3357 |
* failedFuture(null) throws NPE |
3358 |
*/ |
3359 |
public void testFailedFuture_null() { |
3360 |
try { |
3361 |
CompletableFuture<Integer> f = CompletableFuture.failedFuture(null); |
3362 |
shouldThrow(); |
3363 |
} catch (NullPointerException success) {} |
3364 |
} |
3365 |
|
3366 |
/** |
3367 |
* copy returns a CompletableFuture that is completed normally, |
3368 |
* with the same value, when source is. |
3369 |
*/ |
3370 |
public void testCopy() { |
3371 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3372 |
CompletableFuture<Integer> g = f.copy(); |
3373 |
checkIncomplete(f); |
3374 |
checkIncomplete(g); |
3375 |
f.complete(1); |
3376 |
checkCompletedNormally(f, 1); |
3377 |
checkCompletedNormally(g, 1); |
3378 |
} |
3379 |
|
3380 |
/** |
3381 |
* copy returns a CompletableFuture that is completed exceptionally |
3382 |
* when source is. |
3383 |
*/ |
3384 |
public void testCopy2() { |
3385 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3386 |
CompletableFuture<Integer> g = f.copy(); |
3387 |
checkIncomplete(f); |
3388 |
checkIncomplete(g); |
3389 |
CFException ex = new CFException(); |
3390 |
f.completeExceptionally(ex); |
3391 |
checkCompletedExceptionally(f, ex); |
3392 |
checkCompletedWithWrappedException(g, ex); |
3393 |
} |
3394 |
|
3395 |
/** |
3396 |
* minimalCompletionStage returns a CompletableFuture that is |
3397 |
* completed normally, with the same value, when source is. |
3398 |
*/ |
3399 |
public void testMinimalCompletionStage() { |
3400 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3401 |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3402 |
AtomicInteger x = new AtomicInteger(0); |
3403 |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3404 |
checkIncomplete(f); |
3405 |
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3406 |
f.complete(1); |
3407 |
checkCompletedNormally(f, 1); |
3408 |
assertEquals(x.get(), 1); |
3409 |
assertNull(r.get()); |
3410 |
} |
3411 |
|
3412 |
/** |
3413 |
* minimalCompletionStage returns a CompletableFuture that is |
3414 |
* completed exceptionally when source is. |
3415 |
*/ |
3416 |
public void testMinimalCompletionStage2() { |
3417 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3418 |
CompletionStage<Integer> g = f.minimalCompletionStage(); |
3419 |
AtomicInteger x = new AtomicInteger(0); |
3420 |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3421 |
g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3422 |
checkIncomplete(f); |
3423 |
CFException ex = new CFException(); |
3424 |
f.completeExceptionally(ex); |
3425 |
checkCompletedExceptionally(f, ex); |
3426 |
assertEquals(x.get(), 0); |
3427 |
assertEquals(r.get().getCause(), ex); |
3428 |
} |
3429 |
|
3430 |
/** |
3431 |
* failedStage returns a CompletionStage completed |
3432 |
* exceptionally with the given Exception |
3433 |
*/ |
3434 |
public void testFailedStage() { |
3435 |
CFException ex = new CFException(); |
3436 |
CompletionStage<Integer> f = CompletableFuture.failedStage(ex); |
3437 |
AtomicInteger x = new AtomicInteger(0); |
3438 |
AtomicReference<Throwable> r = new AtomicReference<Throwable>(); |
3439 |
f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); |
3440 |
assertEquals(x.get(), 0); |
3441 |
assertEquals(r.get(), ex); |
3442 |
} |
3443 |
|
3444 |
/** |
3445 |
* completeAsync completes with value of given supplier |
3446 |
*/ |
3447 |
public void testCompleteAsync() { |
3448 |
for (Integer v1 : new Integer[] { 1, null }) |
3449 |
{ |
3450 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3451 |
f.completeAsync(() -> v1); |
3452 |
f.join(); |
3453 |
checkCompletedNormally(f, v1); |
3454 |
}} |
3455 |
|
3456 |
/** |
3457 |
* completeAsync completes exceptionally if given supplier throws |
3458 |
*/ |
3459 |
public void testCompleteAsync2() { |
3460 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3461 |
CFException ex = new CFException(); |
3462 |
f.completeAsync(() -> {if (true) throw ex; return 1;}); |
3463 |
try { |
3464 |
f.join(); |
3465 |
shouldThrow(); |
3466 |
} catch (CompletionException success) {} |
3467 |
checkCompletedWithWrappedException(f, ex); |
3468 |
} |
3469 |
|
3470 |
/** |
3471 |
* completeAsync with given executor completes with value of given supplier |
3472 |
*/ |
3473 |
public void testCompleteAsync3() { |
3474 |
for (Integer v1 : new Integer[] { 1, null }) |
3475 |
{ |
3476 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3477 |
ThreadExecutor executor = new ThreadExecutor(); |
3478 |
f.completeAsync(() -> v1, executor); |
3479 |
assertSame(v1, f.join()); |
3480 |
checkCompletedNormally(f, v1); |
3481 |
assertEquals(1, executor.count.get()); |
3482 |
}} |
3483 |
|
3484 |
/** |
3485 |
* completeAsync with given executor completes exceptionally if |
3486 |
* given supplier throws |
3487 |
*/ |
3488 |
public void testCompleteAsync4() { |
3489 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3490 |
CFException ex = new CFException(); |
3491 |
ThreadExecutor executor = new ThreadExecutor(); |
3492 |
f.completeAsync(() -> {if (true) throw ex; return 1;}, executor); |
3493 |
try { |
3494 |
f.join(); |
3495 |
shouldThrow(); |
3496 |
} catch (CompletionException success) {} |
3497 |
checkCompletedWithWrappedException(f, ex); |
3498 |
assertEquals(1, executor.count.get()); |
3499 |
} |
3500 |
|
3501 |
/** |
3502 |
* orTimeout completes with TimeoutException if not complete |
3503 |
*/ |
3504 |
public void testOrTimeout_timesOut() { |
3505 |
long timeoutMillis = timeoutMillis(); |
3506 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3507 |
long startTime = System.nanoTime(); |
3508 |
f.orTimeout(timeoutMillis, MILLISECONDS); |
3509 |
checkCompletedWithTimeoutException(f); |
3510 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3511 |
} |
3512 |
|
3513 |
/** |
3514 |
* orTimeout completes normally if completed before timeout |
3515 |
*/ |
3516 |
public void testOrTimeout_completed() { |
3517 |
for (Integer v1 : new Integer[] { 1, null }) |
3518 |
{ |
3519 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3520 |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3521 |
long startTime = System.nanoTime(); |
3522 |
f.complete(v1); |
3523 |
f.orTimeout(LONG_DELAY_MS, MILLISECONDS); |
3524 |
g.orTimeout(LONG_DELAY_MS, MILLISECONDS); |
3525 |
g.complete(v1); |
3526 |
checkCompletedNormally(f, v1); |
3527 |
checkCompletedNormally(g, v1); |
3528 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3529 |
}} |
3530 |
|
3531 |
/** |
3532 |
* completeOnTimeout completes with given value if not complete |
3533 |
*/ |
3534 |
public void testCompleteOnTimeout_timesOut() { |
3535 |
testInParallel(() -> testCompleteOnTimeout_timesOut(42), |
3536 |
() -> testCompleteOnTimeout_timesOut(null)); |
3537 |
} |
3538 |
|
3539 |
public void testCompleteOnTimeout_timesOut(Integer v) { |
3540 |
long timeoutMillis = timeoutMillis(); |
3541 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3542 |
long startTime = System.nanoTime(); |
3543 |
f.completeOnTimeout(v, timeoutMillis, MILLISECONDS); |
3544 |
assertSame(v, f.join()); |
3545 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
3546 |
f.complete(99); // should have no effect |
3547 |
checkCompletedNormally(f, v); |
3548 |
} |
3549 |
|
3550 |
/** |
3551 |
* completeOnTimeout has no effect if completed within timeout |
3552 |
*/ |
3553 |
public void testCompleteOnTimeout_completed() { |
3554 |
for (Integer v1 : new Integer[] { 1, null }) |
3555 |
{ |
3556 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3557 |
CompletableFuture<Integer> g = new CompletableFuture<>(); |
3558 |
long startTime = System.nanoTime(); |
3559 |
f.complete(v1); |
3560 |
f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS); |
3561 |
g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS); |
3562 |
g.complete(v1); |
3563 |
checkCompletedNormally(f, v1); |
3564 |
checkCompletedNormally(g, v1); |
3565 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2); |
3566 |
}} |
3567 |
|
3568 |
/** |
3569 |
* delayedExecutor returns an executor that delays submission |
3570 |
*/ |
3571 |
public void testDelayedExecutor() { |
3572 |
testInParallel(() -> testDelayedExecutor(null, null), |
3573 |
() -> testDelayedExecutor(null, 1), |
3574 |
() -> testDelayedExecutor(new ThreadExecutor(), 1), |
3575 |
() -> testDelayedExecutor(new ThreadExecutor(), 1)); |
3576 |
} |
3577 |
|
3578 |
public void testDelayedExecutor(Executor executor, Integer v) throws Exception { |
3579 |
long timeoutMillis = timeoutMillis(); |
3580 |
// Use an "unreasonably long" long timeout to catch lingering threads |
3581 |
long longTimeoutMillis = 1000 * 60 * 60 * 24; |
3582 |
final Executor delayer, longDelayer; |
3583 |
if (executor == null) { |
3584 |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS); |
3585 |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS); |
3586 |
} else { |
3587 |
delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor); |
3588 |
longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor); |
3589 |
} |
3590 |
long startTime = System.nanoTime(); |
3591 |
CompletableFuture<Integer> f = |
3592 |
CompletableFuture.supplyAsync(() -> v, delayer); |
3593 |
CompletableFuture<Integer> g = |
3594 |
CompletableFuture.supplyAsync(() -> v, longDelayer); |
3595 |
|
3596 |
assertNull(g.getNow(null)); |
3597 |
|
3598 |
assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS)); |
3599 |
long millisElapsed = millisElapsedSince(startTime); |
3600 |
assertTrue(millisElapsed >= timeoutMillis); |
3601 |
assertTrue(millisElapsed < LONG_DELAY_MS / 2); |
3602 |
|
3603 |
checkCompletedNormally(f, v); |
3604 |
|
3605 |
checkIncomplete(g); |
3606 |
assertTrue(g.cancel(true)); |
3607 |
} |
3608 |
|
3609 |
//--- tests of implementation details; not part of official tck --- |
3610 |
|
3611 |
Object resultOf(CompletableFuture<?> f) { |
3612 |
try { |
3613 |
java.lang.reflect.Field resultField |
3614 |
= CompletableFuture.class.getDeclaredField("result"); |
3615 |
resultField.setAccessible(true); |
3616 |
return resultField.get(f); |
3617 |
} catch (Throwable t) { throw new AssertionError(t); } |
3618 |
} |
3619 |
|
3620 |
public void testExceptionPropagationReusesResultObject() { |
3621 |
if (!testImplementationDetails) return; |
3622 |
for (ExecutionMode m : ExecutionMode.values()) |
3623 |
{ |
3624 |
final CFException ex = new CFException(); |
3625 |
final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42); |
3626 |
final CompletableFuture<Integer> incomplete = new CompletableFuture<>(); |
3627 |
|
3628 |
List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs |
3629 |
= new ArrayList<>(); |
3630 |
|
3631 |
funs.add((y) -> m.thenRun(y, new Noop(m))); |
3632 |
funs.add((y) -> m.thenAccept(y, new NoopConsumer(m))); |
3633 |
funs.add((y) -> m.thenApply(y, new IncFunction(m))); |
3634 |
|
3635 |
funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m))); |
3636 |
funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m))); |
3637 |
funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m))); |
3638 |
|
3639 |
funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m))); |
3640 |
funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); |
3641 |
funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m))); |
3642 |
|
3643 |
funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {})); |
3644 |
|
3645 |
funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m))); |
3646 |
|
3647 |
funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42})); |
3648 |
funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete})); |
3649 |
|
3650 |
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
3651 |
fun : funs) { |
3652 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3653 |
f.completeExceptionally(ex); |
3654 |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
3655 |
checkCompletedWithWrappedException(src, ex); |
3656 |
CompletableFuture<?> dep = fun.apply(src); |
3657 |
checkCompletedWithWrappedException(dep, ex); |
3658 |
assertSame(resultOf(src), resultOf(dep)); |
3659 |
} |
3660 |
|
3661 |
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
3662 |
fun : funs) { |
3663 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3664 |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
3665 |
CompletableFuture<?> dep = fun.apply(src); |
3666 |
f.completeExceptionally(ex); |
3667 |
checkCompletedWithWrappedException(src, ex); |
3668 |
checkCompletedWithWrappedException(dep, ex); |
3669 |
assertSame(resultOf(src), resultOf(dep)); |
3670 |
} |
3671 |
|
3672 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
3673 |
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
3674 |
fun : funs) { |
3675 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3676 |
f.cancel(mayInterruptIfRunning); |
3677 |
checkCancelled(f); |
3678 |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
3679 |
checkCompletedWithWrappedCancellationException(src); |
3680 |
CompletableFuture<?> dep = fun.apply(src); |
3681 |
checkCompletedWithWrappedCancellationException(dep); |
3682 |
assertSame(resultOf(src), resultOf(dep)); |
3683 |
} |
3684 |
|
3685 |
for (boolean mayInterruptIfRunning : new boolean[] { true, false }) |
3686 |
for (Function<CompletableFuture<Integer>, CompletableFuture<?>> |
3687 |
fun : funs) { |
3688 |
CompletableFuture<Integer> f = new CompletableFuture<>(); |
3689 |
CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m)); |
3690 |
CompletableFuture<?> dep = fun.apply(src); |
3691 |
f.cancel(mayInterruptIfRunning); |
3692 |
checkCancelled(f); |
3693 |
checkCompletedWithWrappedCancellationException(src); |
3694 |
checkCompletedWithWrappedCancellationException(dep); |
3695 |
assertSame(resultOf(src), resultOf(dep)); |
3696 |
} |
3697 |
}} |
3698 |
|
3699 |
/** |
3700 |
* Minimal completion stages throw UOE for all non-CompletionStage methods |
3701 |
*/ |
3702 |
public void testMinimalCompletionStage_minimality() { |
3703 |
if (!testImplementationDetails) return; |
3704 |
Function<Method, String> toSignature = |
3705 |
(method) -> method.getName() + Arrays.toString(method.getParameterTypes()); |
3706 |
List<Method> minimalMethods = |
3707 |
Stream.of(Object.class, CompletionStage.class) |
3708 |
.map((klazz) -> Stream.of(klazz.getMethods())) |
3709 |
.reduce(Stream::concat) |
3710 |
.orElseGet(Stream::empty) |
3711 |
.filter((method) -> (method.getModifiers() & Modifier.STATIC) == 0) |
3712 |
.collect(Collectors.toList()); |
3713 |
// Methods from CompletableFuture permitted NOT to throw UOE |
3714 |
String[] signatureWhitelist = { |
3715 |
"newIncompleteFuture[]", |
3716 |
"defaultExecutor[]", |
3717 |
"minimalCompletionStage[]", |
3718 |
"copy[]", |
3719 |
}; |
3720 |
Set<String> permittedMethodSignatures = |
3721 |
Stream.concat(minimalMethods.stream().map(toSignature), |
3722 |
Stream.of(signatureWhitelist)) |
3723 |
.collect(Collectors.toSet()); |
3724 |
List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods()) |
3725 |
.filter((method) -> (method.getModifiers() & Modifier.STATIC) == 0) |
3726 |
.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method))) |
3727 |
.collect(Collectors.toList()); |
3728 |
|
3729 |
CompletionStage<Integer> minimalStage = |
3730 |
new CompletableFuture<Integer>().minimalCompletionStage(); |
3731 |
|
3732 |
List<Method> bugs = new ArrayList<>(); |
3733 |
for (Method method : allMethods) { |
3734 |
Class<?>[] parameterTypes = method.getParameterTypes(); |
3735 |
Object[] args = new Object[parameterTypes.length]; |
3736 |
// Manufacture boxed primitives for primitive params |
3737 |
for (int i = 0; i < args.length; i++) { |
3738 |
Class<?> type = parameterTypes[i]; |
3739 |
if (parameterTypes[i] == boolean.class) |
3740 |
args[i] = false; |
3741 |
else if (parameterTypes[i] == int.class) |
3742 |
args[i] = 0; |
3743 |
else if (parameterTypes[i] == long.class) |
3744 |
args[i] = 0L; |
3745 |
} |
3746 |
try { |
3747 |
method.invoke(minimalStage, args); |
3748 |
bugs.add(method); |
3749 |
} |
3750 |
catch (java.lang.reflect.InvocationTargetException expected) { |
3751 |
if (! (expected.getCause() instanceof UnsupportedOperationException)) { |
3752 |
bugs.add(method); |
3753 |
// expected.getCause().printStackTrace(); |
3754 |
} |
3755 |
} |
3756 |
catch (ReflectiveOperationException bad) { throw new Error(bad); } |
3757 |
} |
3758 |
if (!bugs.isEmpty()) |
3759 |
throw new Error("Methods did not throw UOE: " + bugs.toString()); |
3760 |
} |
3761 |
|
3762 |
// static <U> U join(CompletionStage<U> stage) { |
3763 |
// CompletableFuture<U> f = new CompletableFuture<>(); |
3764 |
// stage.whenComplete((v, ex) -> { |
3765 |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
3766 |
// }); |
3767 |
// return f.join(); |
3768 |
// } |
3769 |
|
3770 |
// static <U> boolean isDone(CompletionStage<U> stage) { |
3771 |
// CompletableFuture<U> f = new CompletableFuture<>(); |
3772 |
// stage.whenComplete((v, ex) -> { |
3773 |
// if (ex != null) f.completeExceptionally(ex); else f.complete(v); |
3774 |
// }); |
3775 |
// return f.isDone(); |
3776 |
// } |
3777 |
|
3778 |
// static <U> U join2(CompletionStage<U> stage) { |
3779 |
// return stage.toCompletableFuture().copy().join(); |
3780 |
// } |
3781 |
|
3782 |
// static <U> boolean isDone2(CompletionStage<U> stage) { |
3783 |
// return stage.toCompletableFuture().copy().isDone(); |
3784 |
// } |
3785 |
|
3786 |
} |