--- jsr166/src/test/tck/CompletableFutureTest.java 2014/06/02 06:07:34 1.45 +++ jsr166/src/test/tck/CompletableFutureTest.java 2015/09/03 16:30:05 1.105 @@ -5,33 +5,38 @@ * http://creativecommons.org/publicdomain/zero/1.0/ */ -import junit.framework.*; +import static java.util.concurrent.TimeUnit.MILLISECONDS; +import static java.util.concurrent.TimeUnit.SECONDS; + +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; import java.util.concurrent.Callable; -import java.util.concurrent.Executor; -import java.util.concurrent.ExecutorService; -import java.util.concurrent.Executors; import java.util.concurrent.CancellationException; -import java.util.concurrent.CountDownLatch; -import java.util.concurrent.ExecutionException; -import java.util.concurrent.Future; import java.util.concurrent.CompletableFuture; import java.util.concurrent.CompletionException; import java.util.concurrent.CompletionStage; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.Executor; +import java.util.concurrent.ForkJoinPool; +import java.util.concurrent.ForkJoinTask; import java.util.concurrent.TimeoutException; +import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicInteger; -import static java.util.concurrent.TimeUnit.MILLISECONDS; -import static java.util.concurrent.TimeUnit.SECONDS; -import java.util.*; -import java.util.function.Supplier; -import java.util.function.Consumer; +import java.util.concurrent.atomic.AtomicReference; import java.util.function.BiConsumer; -import java.util.function.Function; import java.util.function.BiFunction; +import java.util.function.Consumer; +import java.util.function.Function; +import java.util.function.Supplier; + +import junit.framework.Test; +import junit.framework.TestSuite; public class CompletableFutureTest extends JSR166TestCase { public static void main(String[] args) { - junit.textui.TestRunner.run(suite()); + main(suite(), args); } public static Test suite() { return new TestSuite(CompletableFutureTest.class); @@ -42,7 +47,7 @@ public class CompletableFutureTest exten void checkIncomplete(CompletableFuture f) { assertFalse(f.isDone()); assertFalse(f.isCancelled()); - assertTrue(f.toString().contains("[Not completed]")); + assertTrue(f.toString().contains("Not completed")); try { assertNull(f.getNow(null)); } catch (Throwable fail) { threadUnexpectedException(fail); } @@ -55,9 +60,8 @@ public class CompletableFutureTest exten } void checkCompletedNormally(CompletableFuture f, T value) { - try { - assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS)); - } catch (Throwable fail) { threadUnexpectedException(fail); } + checkTimedGet(f, value); + try { assertEquals(value, f.join()); } catch (Throwable fail) { threadUnexpectedException(fail); } @@ -74,12 +78,16 @@ public class CompletableFutureTest exten } void checkCompletedWithWrappedCFException(CompletableFuture f) { + long startTime = System.nanoTime(); + long timeoutMillis = LONG_DELAY_MS; try { - f.get(LONG_DELAY_MS, MILLISECONDS); + f.get(timeoutMillis, MILLISECONDS); shouldThrow(); } catch (ExecutionException success) { assertTrue(success.getCause() instanceof CFException); } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); + try { f.join(); shouldThrow(); @@ -103,14 +111,18 @@ public class CompletableFutureTest exten assertTrue(f.toString().contains("[Completed exceptionally]")); } - void checkCompletedWithWrappedCFException(CompletableFuture f, - CFException ex) { + void checkCompletedExceptionallyWithRootCause(CompletableFuture f, + Throwable ex) { + long startTime = System.nanoTime(); + long timeoutMillis = LONG_DELAY_MS; try { - f.get(LONG_DELAY_MS, MILLISECONDS); + f.get(timeoutMillis, MILLISECONDS); shouldThrow(); } catch (ExecutionException success) { assertSame(ex, success.getCause()); } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); + try { f.join(); shouldThrow(); @@ -129,17 +141,79 @@ public class CompletableFutureTest exten } catch (ExecutionException success) { assertSame(ex, success.getCause()); } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(f.isDone()); assertFalse(f.isCancelled()); assertTrue(f.toString().contains("[Completed exceptionally]")); } + void checkCompletedExceptionallyWithTimeout(CompletableFuture f) { + long startTime = System.nanoTime(); + long timeoutMillis = LONG_DELAY_MS; + try { + f.get(timeoutMillis, MILLISECONDS); + shouldThrow(); + } catch (ExecutionException ex) { + assertTrue(ex.getCause() instanceof TimeoutException); + } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); + + try { + f.join(); + shouldThrow(); + } catch (Throwable ex) { + assertTrue(ex.getCause() instanceof TimeoutException); + } + + try { + f.getNow(null); + shouldThrow(); + } catch (Throwable ex) { + assertTrue(ex.getCause() instanceof TimeoutException); + } + + try { + f.get(); + shouldThrow(); + } catch (ExecutionException ex) { + assertTrue(ex.getCause() instanceof TimeoutException); + } catch (Throwable fail) { threadUnexpectedException(fail); } + + assertTrue(f.isDone()); + assertFalse(f.isCancelled()); + assertTrue(f.toString().contains("[Completed exceptionally]")); + } + + void checkCompletedWithWrappedException(CompletableFuture f, + Throwable ex) { + checkCompletedExceptionallyWithRootCause(f, ex); + try { + CompletableFuture spy = f.handle + ((U u, Throwable t) -> t); + assertTrue(spy.join() instanceof CompletionException); + assertSame(ex, spy.join().getCause()); + } catch (Throwable fail) { threadUnexpectedException(fail); } + } + + void checkCompletedExceptionally(CompletableFuture f, Throwable ex) { + checkCompletedExceptionallyWithRootCause(f, ex); + try { + CompletableFuture spy = f.handle + ((U u, Throwable t) -> t); + assertSame(ex, spy.join()); + } catch (Throwable fail) { threadUnexpectedException(fail); } + } + void checkCancelled(CompletableFuture f) { + long startTime = System.nanoTime(); + long timeoutMillis = LONG_DELAY_MS; try { - f.get(LONG_DELAY_MS, MILLISECONDS); + f.get(timeoutMillis, MILLISECONDS); shouldThrow(); } catch (CancellationException success) { } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); + try { f.join(); shouldThrow(); @@ -160,12 +234,16 @@ public class CompletableFutureTest exten } void checkCompletedWithWrappedCancellationException(CompletableFuture f) { + long startTime = System.nanoTime(); + long timeoutMillis = LONG_DELAY_MS; try { - f.get(LONG_DELAY_MS, MILLISECONDS); + f.get(timeoutMillis, MILLISECONDS); shouldThrow(); } catch (ExecutionException success) { assertTrue(success.getCause() instanceof CancellationException); } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) < timeoutMillis/2); + try { f.join(); shouldThrow(); @@ -204,11 +282,14 @@ public class CompletableFutureTest exten * isCancelled, join, get, and getNow */ public void testComplete() { + for (Integer v1 : new Integer[] { 1, null }) + { CompletableFuture f = new CompletableFuture<>(); checkIncomplete(f); - f.complete(one); - checkCompletedNormally(f, one); - } + assertTrue(f.complete(v1)); + assertFalse(f.complete(v1)); + checkCompletedNormally(f, v1); + }} /** * completeExceptionally completes exceptionally, as indicated by @@ -216,9 +297,10 @@ public class CompletableFutureTest exten */ public void testCompleteExceptionally() { CompletableFuture f = new CompletableFuture<>(); + CFException ex = new CFException(); checkIncomplete(f); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(f); + f.completeExceptionally(ex); + checkCompletedExceptionally(f, ex); } /** @@ -226,11 +308,15 @@ public class CompletableFutureTest exten * methods isDone, isCancelled, join, get, and getNow */ public void testCancel() { + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + { CompletableFuture f = new CompletableFuture<>(); checkIncomplete(f); - assertTrue(f.cancel(true)); + assertTrue(f.cancel(mayInterruptIfRunning)); + assertTrue(f.cancel(mayInterruptIfRunning)); + assertTrue(f.cancel(!mayInterruptIfRunning)); checkCancelled(f); - } + }} /** * obtrudeValue forces completion with given value @@ -238,7 +324,7 @@ public class CompletableFutureTest exten public void testObtrudeValue() { CompletableFuture f = new CompletableFuture<>(); checkIncomplete(f); - f.complete(one); + assertTrue(f.complete(one)); checkCompletedNormally(f, one); f.obtrudeValue(three); checkCompletedNormally(f, three); @@ -247,6 +333,8 @@ public class CompletableFutureTest exten f = new CompletableFuture<>(); f.obtrudeValue(three); checkCompletedNormally(f, three); + f.obtrudeValue(null); + checkCompletedNormally(f, null); f = new CompletableFuture<>(); f.completeExceptionally(new CFException()); f.obtrudeValue(four); @@ -257,39 +345,58 @@ public class CompletableFutureTest exten * obtrudeException forces completion with given exception */ public void testObtrudeException() { - CompletableFuture f = new CompletableFuture<>(); - checkIncomplete(f); - f.complete(one); - checkCompletedNormally(f, one); - f.obtrudeException(new CFException()); - checkCompletedWithWrappedCFException(f); + for (Integer v1 : new Integer[] { 1, null }) + { + CFException ex; + CompletableFuture f; + f = new CompletableFuture<>(); - f.obtrudeException(new CFException()); - checkCompletedWithWrappedCFException(f); + assertTrue(f.complete(v1)); + for (int i = 0; i < 2; i++) { + f.obtrudeException(ex = new CFException()); + checkCompletedExceptionally(f, ex); + } + + f = new CompletableFuture<>(); + for (int i = 0; i < 2; i++) { + f.obtrudeException(ex = new CFException()); + checkCompletedExceptionally(f, ex); + } + f = new CompletableFuture<>(); + f.completeExceptionally(ex = new CFException()); + f.obtrudeValue(v1); + checkCompletedNormally(f, v1); + f.obtrudeException(ex = new CFException()); + checkCompletedExceptionally(f, ex); f.completeExceptionally(new CFException()); - f.obtrudeValue(four); - checkCompletedNormally(f, four); - f.obtrudeException(new CFException()); - checkCompletedWithWrappedCFException(f); - } + checkCompletedExceptionally(f, ex); + assertFalse(f.complete(v1)); + checkCompletedExceptionally(f, ex); + }} /** * getNumberOfDependents returns number of dependent tasks */ public void testGetNumberOfDependents() { + for (ExecutionMode m : ExecutionMode.values()) + for (Integer v1 : new Integer[] { 1, null }) + { CompletableFuture f = new CompletableFuture<>(); - assertEquals(f.getNumberOfDependents(), 0); - CompletableFuture g = f.thenRun(new Noop()); - assertEquals(f.getNumberOfDependents(), 1); - assertEquals(g.getNumberOfDependents(), 0); - CompletableFuture h = f.thenRun(new Noop()); - assertEquals(f.getNumberOfDependents(), 2); - f.complete(1); + assertEquals(0, f.getNumberOfDependents()); + final CompletableFuture g = m.thenRun(f, new Noop(m)); + assertEquals(1, f.getNumberOfDependents()); + assertEquals(0, g.getNumberOfDependents()); + final CompletableFuture h = m.thenRun(f, new Noop(m)); + assertEquals(2, f.getNumberOfDependents()); + assertEquals(0, h.getNumberOfDependents()); + assertTrue(f.complete(v1)); checkCompletedNormally(g, null); - assertEquals(f.getNumberOfDependents(), 0); - assertEquals(g.getNumberOfDependents(), 0); - } + checkCompletedNormally(h, null); + assertEquals(0, f.getNumberOfDependents()); + assertEquals(0, g.getNumberOfDependents()); + assertEquals(0, h.getNumberOfDependents()); + }} /** * toString indicates current completion state @@ -300,12 +407,18 @@ public class CompletableFutureTest exten f = new CompletableFuture(); assertTrue(f.toString().contains("[Not completed]")); - f.complete("foo"); + assertTrue(f.complete("foo")); assertTrue(f.toString().contains("[Completed normally]")); f = new CompletableFuture(); - f.completeExceptionally(new IndexOutOfBoundsException()); + assertTrue(f.completeExceptionally(new IndexOutOfBoundsException())); assertTrue(f.toString().contains("[Completed exceptionally]")); + + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { + f = new CompletableFuture(); + assertTrue(f.cancel(mayInterruptIfRunning)); + assertTrue(f.toString().contains("[Completed exceptionally]")); + } } /** @@ -316,13 +429,39 @@ public class CompletableFutureTest exten checkCompletedNormally(f, "test"); } - // Choose non-commutative actions for better coverage + abstract class CheckedAction { + int invocationCount = 0; + final ExecutionMode m; + CheckedAction(ExecutionMode m) { this.m = m; } + void invoked() { + m.checkExecutionMode(); + assertEquals(0, invocationCount++); + } + void assertNotInvoked() { assertEquals(0, invocationCount); } + void assertInvoked() { assertEquals(1, invocationCount); } + } - // A non-commutative function that handles and produces null values as well. - static Integer subtract(Integer x, Integer y) { - return (x == null && y == null) ? null : - ((x == null) ? 42 : x.intValue()) - - ((y == null) ? 99 : y.intValue()); + abstract class CheckedIntegerAction extends CheckedAction { + Integer value; + CheckedIntegerAction(ExecutionMode m) { super(m); } + void assertValue(Integer expected) { + assertInvoked(); + assertEquals(expected, value); + } + } + + class IntegerSupplier extends CheckedAction + implements Supplier + { + final Integer value; + IntegerSupplier(ExecutionMode m, Integer value) { + super(m); + this.value = value; + } + public Integer get() { + invoked(); + return value; + } } // A function that handles and produces null values as well. @@ -330,144 +469,207 @@ public class CompletableFutureTest exten return (x == null) ? null : x + 1; } - static final Supplier supplyOne = - () -> Integer.valueOf(1); - static final Function inc = - (Integer x) -> Integer.valueOf(x.intValue() + 1); - static final BiFunction subtract = - (Integer x, Integer y) -> subtract(x, y); - static final class IncAction implements Consumer { - int invocationCount = 0; - Integer value; + class NoopConsumer extends CheckedIntegerAction + implements Consumer + { + NoopConsumer(ExecutionMode m) { super(m); } public void accept(Integer x) { - invocationCount++; - value = inc(x); + invoked(); + value = x; } } - static final class IncFunction implements Function { - int invocationCount = 0; - Integer value; + + class IncFunction extends CheckedIntegerAction + implements Function + { + IncFunction(ExecutionMode m) { super(m); } public Integer apply(Integer x) { - invocationCount++; + invoked(); return value = inc(x); } } - static final class SubtractAction implements BiConsumer { - int invocationCount = 0; - Integer value; - // Check this action was invoked exactly once when result is computed. + + // Choose non-commutative actions for better coverage + // A non-commutative function that handles and produces null values as well. + static Integer subtract(Integer x, Integer y) { + return (x == null && y == null) ? null : + ((x == null) ? 42 : x.intValue()) + - ((y == null) ? 99 : y.intValue()); + } + + class SubtractAction extends CheckedIntegerAction + implements BiConsumer + { + SubtractAction(ExecutionMode m) { super(m); } public void accept(Integer x, Integer y) { - invocationCount++; + invoked(); value = subtract(x, y); } } - static final class SubtractFunction implements BiFunction { - int invocationCount = 0; - Integer value; - // Check this action was invoked exactly once when result is computed. + + class SubtractFunction extends CheckedIntegerAction + implements BiFunction + { + SubtractFunction(ExecutionMode m) { super(m); } public Integer apply(Integer x, Integer y) { - invocationCount++; + invoked(); return value = subtract(x, y); } } - static final class Noop implements Runnable { - int invocationCount = 0; + + class Noop extends CheckedAction implements Runnable { + Noop(ExecutionMode m) { super(m); } public void run() { - invocationCount++; + invoked(); } } - static final class FailingSupplier implements Supplier { - int invocationCount = 0; + class FailingSupplier extends CheckedAction + implements Supplier + { + FailingSupplier(ExecutionMode m) { super(m); } public Integer get() { - invocationCount++; + invoked(); throw new CFException(); } } - static final class FailingConsumer implements Consumer { - int invocationCount = 0; + + class FailingConsumer extends CheckedIntegerAction + implements Consumer + { + FailingConsumer(ExecutionMode m) { super(m); } public void accept(Integer x) { - invocationCount++; + invoked(); + value = x; throw new CFException(); } } - static final class FailingBiConsumer implements BiConsumer { - int invocationCount = 0; + + class FailingBiConsumer extends CheckedIntegerAction + implements BiConsumer + { + FailingBiConsumer(ExecutionMode m) { super(m); } public void accept(Integer x, Integer y) { - invocationCount++; + invoked(); + value = subtract(x, y); throw new CFException(); } } - static final class FailingFunction implements Function { - int invocationCount = 0; + + class FailingFunction extends CheckedIntegerAction + implements Function + { + FailingFunction(ExecutionMode m) { super(m); } public Integer apply(Integer x) { - invocationCount++; + invoked(); + value = x; throw new CFException(); } } - static final class FailingBiFunction implements BiFunction { - int invocationCount = 0; + + class FailingBiFunction extends CheckedIntegerAction + implements BiFunction + { + FailingBiFunction(ExecutionMode m) { super(m); } public Integer apply(Integer x, Integer y) { - invocationCount++; + invoked(); + value = subtract(x, y); throw new CFException(); } } - static final class FailingNoop implements Runnable { - int invocationCount = 0; + + class FailingRunnable extends CheckedAction implements Runnable { + FailingRunnable(ExecutionMode m) { super(m); } public void run() { - invocationCount++; + invoked(); throw new CFException(); } } - static final class CompletableFutureInc - implements Function> { - int invocationCount = 0; + class CompletableFutureInc extends CheckedIntegerAction + implements Function> + { + CompletableFutureInc(ExecutionMode m) { super(m); } public CompletableFuture apply(Integer x) { - invocationCount++; + invoked(); + value = x; CompletableFuture f = new CompletableFuture<>(); - f.complete(inc(x)); + assertTrue(f.complete(inc(x))); return f; } } - static final class FailingCompletableFutureFunction - implements Function> { - int invocationCount = 0; + class FailingCompletableFutureFunction extends CheckedIntegerAction + implements Function> + { + FailingCompletableFutureFunction(ExecutionMode m) { super(m); } public CompletableFuture apply(Integer x) { - invocationCount++; + invoked(); + value = x; throw new CFException(); } } // Used for explicit executor tests static final class ThreadExecutor implements Executor { - AtomicInteger count = new AtomicInteger(0); + final AtomicInteger count = new AtomicInteger(0); + static final ThreadGroup tg = new ThreadGroup("ThreadExecutor"); + static boolean startedCurrentThread() { + return Thread.currentThread().getThreadGroup() == tg; + } public void execute(Runnable r) { count.getAndIncrement(); - new Thread(r).start(); + new Thread(tg, r).start(); } } - static final class ExceptionToInteger implements Function { - public Integer apply(Throwable x) { return Integer.valueOf(3); } - } - - static final class IntegerHandler implements BiFunction { - int invocationCount = 0; - public Integer apply(Integer x, Throwable t) { - invocationCount++; - return (t == null) ? two : three; - } - } + static final boolean defaultExecutorIsCommonPool + = ForkJoinPool.getCommonPoolParallelism() > 1; /** * Permits the testing of parallel code for the 3 different - * execution modes without repeating all the testing code. + * execution modes without copy/pasting all the test methods. */ enum ExecutionMode { - DEFAULT { + SYNC { + public void checkExecutionMode() { + assertFalse(ThreadExecutor.startedCurrentThread()); + assertNull(ForkJoinTask.getPool()); + } + public CompletableFuture runAsync(Runnable a) { + throw new UnsupportedOperationException(); + } + public CompletableFuture supplyAsync(Supplier a) { + throw new UnsupportedOperationException(); + } + public CompletableFuture thenRun + (CompletableFuture f, Runnable a) { + return f.thenRun(a); + } + public CompletableFuture thenAccept + (CompletableFuture f, Consumer a) { + return f.thenAccept(a); + } + public CompletableFuture thenApply + (CompletableFuture f, Function a) { + return f.thenApply(a); + } + public CompletableFuture thenCompose + (CompletableFuture f, + Function> a) { + return f.thenCompose(a); + } + public CompletableFuture handle + (CompletableFuture f, + BiFunction a) { + return f.handle(a); + } + public CompletableFuture whenComplete + (CompletableFuture f, + BiConsumer a) { + return f.whenComplete(a); + } public CompletableFuture runAfterBoth (CompletableFuture f, CompletableFuture g, Runnable a) { return f.runAfterBoth(g, a); @@ -484,11 +686,11 @@ public class CompletableFutureTest exten BiFunction a) { return f.thenCombine(g, a); } - public CompletableFuture applyToEither + public CompletableFuture runAfterEither (CompletableFuture f, - CompletionStage g, - Function a) { - return f.applyToEither(g, a); + CompletionStage g, + java.lang.Runnable a) { + return f.runAfterEither(g, a); } public CompletableFuture acceptEither (CompletableFuture f, @@ -496,25 +698,52 @@ public class CompletableFutureTest exten Consumer a) { return f.acceptEither(g, a); } - public CompletableFuture runAfterEither + public CompletableFuture applyToEither (CompletableFuture f, - CompletionStage g, - java.lang.Runnable a) { - return f.runAfterEither(g, a); + CompletionStage g, + Function a) { + return f.applyToEither(g, a); + } + }, + + ASYNC { + public void checkExecutionMode() { + assertEquals(defaultExecutorIsCommonPool, + (ForkJoinPool.commonPool() == ForkJoinTask.getPool())); + } + public CompletableFuture runAsync(Runnable a) { + return CompletableFuture.runAsync(a); + } + public CompletableFuture supplyAsync(Supplier a) { + return CompletableFuture.supplyAsync(a); + } + public CompletableFuture thenRun + (CompletableFuture f, Runnable a) { + return f.thenRunAsync(a); + } + public CompletableFuture thenAccept + (CompletableFuture f, Consumer a) { + return f.thenAcceptAsync(a); + } + public CompletableFuture thenApply + (CompletableFuture f, Function a) { + return f.thenApplyAsync(a); } public CompletableFuture thenCompose (CompletableFuture f, Function> a) { - return f.thenCompose(a); + return f.thenComposeAsync(a); + } + public CompletableFuture handle + (CompletableFuture f, + BiFunction a) { + return f.handleAsync(a); } public CompletableFuture whenComplete (CompletableFuture f, BiConsumer a) { - return f.whenComplete(a); + return f.whenCompleteAsync(a); } - }, - - DEFAULT_ASYNC { public CompletableFuture runAfterBoth (CompletableFuture f, CompletableFuture g, Runnable a) { return f.runAfterBothAsync(g, a); @@ -531,11 +760,11 @@ public class CompletableFutureTest exten BiFunction a) { return f.thenCombineAsync(g, a); } - public CompletableFuture applyToEither + public CompletableFuture runAfterEither (CompletableFuture f, - CompletionStage g, - Function a) { - return f.applyToEitherAsync(g, a); + CompletionStage g, + java.lang.Runnable a) { + return f.runAfterEitherAsync(g, a); } public CompletableFuture acceptEither (CompletableFuture f, @@ -543,25 +772,51 @@ public class CompletableFutureTest exten Consumer a) { return f.acceptEitherAsync(g, a); } - public CompletableFuture runAfterEither + public CompletableFuture applyToEither (CompletableFuture f, - CompletionStage g, - java.lang.Runnable a) { - return f.runAfterEitherAsync(g, a); + CompletionStage g, + Function a) { + return f.applyToEitherAsync(g, a); + } + }, + + EXECUTOR { + public void checkExecutionMode() { + assertTrue(ThreadExecutor.startedCurrentThread()); + } + public CompletableFuture runAsync(Runnable a) { + return CompletableFuture.runAsync(a, new ThreadExecutor()); + } + public CompletableFuture supplyAsync(Supplier a) { + return CompletableFuture.supplyAsync(a, new ThreadExecutor()); + } + public CompletableFuture thenRun + (CompletableFuture f, Runnable a) { + return f.thenRunAsync(a, new ThreadExecutor()); + } + public CompletableFuture thenAccept + (CompletableFuture f, Consumer a) { + return f.thenAcceptAsync(a, new ThreadExecutor()); + } + public CompletableFuture thenApply + (CompletableFuture f, Function a) { + return f.thenApplyAsync(a, new ThreadExecutor()); } public CompletableFuture thenCompose (CompletableFuture f, Function> a) { - return f.thenComposeAsync(a); + return f.thenComposeAsync(a, new ThreadExecutor()); + } + public CompletableFuture handle + (CompletableFuture f, + BiFunction a) { + return f.handleAsync(a, new ThreadExecutor()); } public CompletableFuture whenComplete (CompletableFuture f, BiConsumer a) { - return f.whenCompleteAsync(a); + return f.whenCompleteAsync(a, new ThreadExecutor()); } - }, - - EXECUTOR { public CompletableFuture runAfterBoth (CompletableFuture f, CompletableFuture g, Runnable a) { return f.runAfterBothAsync(g, a, new ThreadExecutor()); @@ -578,36 +833,44 @@ public class CompletableFutureTest exten BiFunction a) { return f.thenCombineAsync(g, a, new ThreadExecutor()); } - public CompletableFuture applyToEither - (CompletableFuture f, - CompletionStage g, - Function a) { - return f.applyToEitherAsync(g, a, new ThreadExecutor()); - } - public CompletableFuture acceptEither - (CompletableFuture f, - CompletionStage g, - Consumer a) { - return f.acceptEitherAsync(g, a, new ThreadExecutor()); - } public CompletableFuture runAfterEither (CompletableFuture f, CompletionStage g, java.lang.Runnable a) { return f.runAfterEitherAsync(g, a, new ThreadExecutor()); } - public CompletableFuture thenCompose + public CompletableFuture acceptEither (CompletableFuture f, - Function> a) { - return f.thenComposeAsync(a, new ThreadExecutor()); + CompletionStage g, + Consumer a) { + return f.acceptEitherAsync(g, a, new ThreadExecutor()); } - public CompletableFuture whenComplete + public CompletableFuture applyToEither (CompletableFuture f, - BiConsumer a) { - return f.whenCompleteAsync(a, new ThreadExecutor()); + CompletionStage g, + Function a) { + return f.applyToEitherAsync(g, a, new ThreadExecutor()); } }; + public abstract void checkExecutionMode(); + public abstract CompletableFuture runAsync(Runnable a); + public abstract CompletableFuture supplyAsync(Supplier a); + public abstract CompletableFuture thenRun + (CompletableFuture f, Runnable a); + public abstract CompletableFuture thenAccept + (CompletableFuture f, Consumer a); + public abstract CompletableFuture thenApply + (CompletableFuture f, Function a); + public abstract CompletableFuture thenCompose + (CompletableFuture f, + Function> a); + public abstract CompletableFuture handle + (CompletableFuture f, + BiFunction a); + public abstract CompletableFuture whenComplete + (CompletableFuture f, + BiConsumer a); public abstract CompletableFuture runAfterBoth (CompletableFuture f, CompletableFuture g, Runnable a); public abstract CompletableFuture thenAcceptBoth @@ -618,2516 +881,2206 @@ public class CompletableFutureTest exten (CompletableFuture f, CompletionStage g, BiFunction a); - public abstract CompletableFuture applyToEither - (CompletableFuture f, - CompletionStage g, - Function a); - public abstract CompletableFuture acceptEither - (CompletableFuture f, - CompletionStage g, - Consumer a); public abstract CompletableFuture runAfterEither (CompletableFuture f, CompletionStage g, java.lang.Runnable a); - public abstract CompletableFuture thenCompose + public abstract CompletableFuture acceptEither (CompletableFuture f, - Function> a); - public abstract CompletableFuture whenComplete + CompletionStage g, + Consumer a); + public abstract CompletableFuture applyToEither (CompletableFuture f, - BiConsumer a); - - - } - - /** - * exceptionally action completes with function value on source - * exception; otherwise with source value - */ - public void testExceptionally() { - CompletableFuture f = new CompletableFuture<>(); - ExceptionToInteger r = new ExceptionToInteger(); - CompletableFuture g = f.exceptionally(r); - f.completeExceptionally(new CFException()); - checkCompletedNormally(g, three); - - f = new CompletableFuture<>(); - r = new ExceptionToInteger(); - g = f.exceptionally(r); - f.complete(one); - checkCompletedNormally(g, one); - } - - /** - * handle action completes normally with function value on either - * normal or exceptional completion of source - */ - public void testHandle() { - CompletableFuture f, g; - IntegerHandler r; - - f = new CompletableFuture<>(); - f.completeExceptionally(new CFException()); - g = f.handle(r = new IntegerHandler()); - assertEquals(1, r.invocationCount); - assertEquals(1, r.invocationCount); - checkCompletedNormally(g, three); - - f = new CompletableFuture<>(); - g = f.handle(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.completeExceptionally(new CFException()); - checkCompletedNormally(g, three); - assertEquals(1, r.invocationCount); - - f = new CompletableFuture<>(); - f.complete(one); - g = f.handle(r = new IntegerHandler()); - assertEquals(1, r.invocationCount); - checkCompletedNormally(g, two); - - f = new CompletableFuture<>(); - g = f.handle(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.complete(one); - assertEquals(1, r.invocationCount); - checkCompletedNormally(g, two); - } - - /** - * runAsync completes after running Runnable - */ - public void testRunAsync() { - Noop r = new Noop(); - CompletableFuture f = CompletableFuture.runAsync(r); - assertNull(f.join()); - assertEquals(1, r.invocationCount); - checkCompletedNormally(f, null); - } - - /** - * runAsync with executor completes after running Runnable - */ - public void testRunAsync2() { - Noop r = new Noop(); - ThreadExecutor exec = new ThreadExecutor(); - CompletableFuture f = CompletableFuture.runAsync(r, exec); - assertNull(f.join()); - assertEquals(1, r.invocationCount); - checkCompletedNormally(f, null); - assertEquals(1, exec.count.get()); - } - - /** - * failing runAsync completes exceptionally after running Runnable - */ - public void testRunAsync3() { - FailingNoop r = new FailingNoop(); - CompletableFuture f = CompletableFuture.runAsync(r); - checkCompletedWithWrappedCFException(f); - assertEquals(1, r.invocationCount); + CompletionStage g, + Function a); } /** - * supplyAsync completes with result of supplier + * exceptionally action is not invoked when source completes + * normally, and source result is propagated */ - public void testSupplyAsync() { - CompletableFuture f; - f = CompletableFuture.supplyAsync(supplyOne); - assertEquals(f.join(), one); - checkCompletedNormally(f, one); - } + public void testExceptionally_normalCompletion() { + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { + final AtomicInteger a = new AtomicInteger(0); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = f.exceptionally + ((Throwable t) -> { + // Should not be called + a.getAndIncrement(); + throw new AssertionError(); + }); + if (createIncomplete) assertTrue(f.complete(v1)); - /** - * supplyAsync with executor completes with result of supplier - */ - public void testSupplyAsync2() { - CompletableFuture f; - f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor()); - assertEquals(f.join(), one); - checkCompletedNormally(f, one); - } + checkCompletedNormally(g, v1); + checkCompletedNormally(f, v1); + assertEquals(0, a.get()); + }} /** - * Failing supplyAsync completes exceptionally + * exceptionally action completes with function value on source + * exception */ - public void testSupplyAsync3() { - FailingSupplier r = new FailingSupplier(); - CompletableFuture f = CompletableFuture.supplyAsync(r); - checkCompletedWithWrappedCFException(f); - assertEquals(1, r.invocationCount); - } - - // seq completion methods + public void testExceptionally_exceptionalCompletion() { + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { + final AtomicInteger a = new AtomicInteger(0); + final CFException ex = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) f.completeExceptionally(ex); + final CompletableFuture g = f.exceptionally + ((Throwable t) -> { + ExecutionMode.SYNC.checkExecutionMode(); + threadAssertSame(t, ex); + a.getAndIncrement(); + return v1; + }); + if (createIncomplete) f.completeExceptionally(ex); - /** - * thenRun result completes normally after normal completion of source - */ - public void testThenRun() { - CompletableFuture f; - CompletableFuture g; - Noop r; + checkCompletedNormally(g, v1); + assertEquals(1, a.get()); + }} - f = new CompletableFuture<>(); - g = f.thenRun(r = new Noop()); - f.complete(null); - checkCompletedNormally(g, null); - assertEquals(1, r.invocationCount); + public void testExceptionally_exceptionalCompletionActionFailed() { + for (boolean createIncomplete : new boolean[] { true, false }) + { + final AtomicInteger a = new AtomicInteger(0); + final CFException ex1 = new CFException(); + final CFException ex2 = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) f.completeExceptionally(ex1); + final CompletableFuture g = f.exceptionally + ((Throwable t) -> { + ExecutionMode.SYNC.checkExecutionMode(); + threadAssertSame(t, ex1); + a.getAndIncrement(); + throw ex2; + }); + if (createIncomplete) f.completeExceptionally(ex1); - f = new CompletableFuture<>(); - f.complete(null); - g = f.thenRun(r = new Noop()); - checkCompletedNormally(g, null); - assertEquals(1, r.invocationCount); - } + checkCompletedWithWrappedException(g, ex2); + assertEquals(1, a.get()); + }} /** - * thenRun result completes exceptionally after exceptional - * completion of source + * whenComplete action executes on normal completion, propagating + * source result. */ - public void testThenRun2() { - CompletableFuture f; - CompletableFuture g; - Noop r; - - f = new CompletableFuture<>(); - g = f.thenRun(r = new Noop()); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - assertEquals(0, r.invocationCount); + public void testWhenComplete_normalCompletion1() { + for (ExecutionMode m : ExecutionMode.values()) + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { + final AtomicInteger a = new AtomicInteger(0); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.whenComplete + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertSame(x, v1); + threadAssertNull(t); + a.getAndIncrement(); + }); + if (createIncomplete) assertTrue(f.complete(v1)); - f = new CompletableFuture<>(); - f.completeExceptionally(new CFException()); - g = f.thenRun(r = new Noop()); - checkCompletedWithWrappedCFException(g); - assertEquals(0, r.invocationCount); - } + checkCompletedNormally(g, v1); + checkCompletedNormally(f, v1); + assertEquals(1, a.get()); + }} /** - * thenRun result completes exceptionally if action does + * whenComplete action executes on exceptional completion, propagating + * source result. */ - public void testThenRun3() { - CompletableFuture f; - CompletableFuture g; - FailingNoop r; - - f = new CompletableFuture<>(); - g = f.thenRun(r = new FailingNoop()); - f.complete(null); - checkCompletedWithWrappedCFException(g); + public void testWhenComplete_exceptionalCompletion() { + for (ExecutionMode m : ExecutionMode.values()) + for (boolean createIncomplete : new boolean[] { true, false }) + { + final AtomicInteger a = new AtomicInteger(0); + final CFException ex = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) f.completeExceptionally(ex); + final CompletableFuture g = m.whenComplete + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertNull(x); + threadAssertSame(t, ex); + a.getAndIncrement(); + }); + if (createIncomplete) f.completeExceptionally(ex); - f = new CompletableFuture<>(); - f.complete(null); - g = f.thenRun(r = new FailingNoop()); - checkCompletedWithWrappedCFException(g); - } + checkCompletedWithWrappedException(g, ex); + checkCompletedExceptionally(f, ex); + assertEquals(1, a.get()); + }} /** - * thenRun result completes exceptionally if source cancelled + * whenComplete action executes on cancelled source, propagating + * CancellationException. */ - public void testThenRun4() { - CompletableFuture f; - CompletableFuture g; - Noop r; - - f = new CompletableFuture<>(); - g = f.thenRun(r = new Noop()); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); + public void testWhenComplete_sourceCancelled() { + for (ExecutionMode m : ExecutionMode.values()) + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (boolean createIncomplete : new boolean[] { true, false }) + { + final AtomicInteger a = new AtomicInteger(0); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); + final CompletableFuture g = m.whenComplete + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertNull(x); + threadAssertTrue(t instanceof CancellationException); + a.getAndIncrement(); + }); + if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); - f = new CompletableFuture<>(); - assertTrue(f.cancel(true)); - g = f.thenRun(r = new Noop()); checkCompletedWithWrappedCancellationException(g); - } + checkCancelled(f); + assertEquals(1, a.get()); + }} /** - * thenApply result completes normally after normal completion of source + * If a whenComplete action throws an exception when triggered by + * a normal completion, it completes exceptionally */ - public void testThenApply() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApply(inc); - f.complete(one); - checkCompletedNormally(g, two); - } + public void testWhenComplete_actionFailed() { + for (boolean createIncomplete : new boolean[] { true, false }) + for (ExecutionMode m : ExecutionMode.values()) + for (Integer v1 : new Integer[] { 1, null }) + { + final AtomicInteger a = new AtomicInteger(0); + final CFException ex = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.whenComplete + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertSame(x, v1); + threadAssertNull(t); + a.getAndIncrement(); + throw ex; + }); + if (createIncomplete) assertTrue(f.complete(v1)); - /** - * thenApply result completes exceptionally after exceptional - * completion of source - */ - public void testThenApply2() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApply(inc); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } + checkCompletedWithWrappedException(g, ex); + checkCompletedNormally(f, v1); + assertEquals(1, a.get()); + }} /** - * thenApply result completes exceptionally if action does + * If a whenComplete action throws an exception when triggered by + * a source completion that also throws an exception, the source + * exception takes precedence. */ - public void testThenApply3() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApply(new FailingFunction()); - f.complete(one); - checkCompletedWithWrappedCFException(g); - } + public void testWhenComplete_actionFailedSourceFailed() { + for (boolean createIncomplete : new boolean[] { true, false }) + for (ExecutionMode m : ExecutionMode.values()) + { + final AtomicInteger a = new AtomicInteger(0); + final CFException ex1 = new CFException(); + final CFException ex2 = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); - /** - * thenApply result completes exceptionally if source cancelled - */ - public void testThenApply4() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApply(inc); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } + if (!createIncomplete) f.completeExceptionally(ex1); + final CompletableFuture g = m.whenComplete + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertSame(t, ex1); + threadAssertNull(x); + a.getAndIncrement(); + throw ex2; + }); + if (createIncomplete) f.completeExceptionally(ex1); - /** - * thenAccept result completes normally after normal completion of source - */ - public void testThenAccept() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAccept(r); - f.complete(one); - checkCompletedNormally(g, null); - assertEquals(r.value, (Integer) 2); - } + checkCompletedWithWrappedException(g, ex1); + checkCompletedExceptionally(f, ex1); + assertEquals(1, a.get()); + }} /** - * thenAccept result completes exceptionally after exceptional + * handle action completes normally with function value on normal * completion of source */ - public void testThenAccept2() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAccept(r); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenAccept result completes exceptionally if action does - */ - public void testThenAccept3() { - CompletableFuture f = new CompletableFuture<>(); - FailingConsumer r = new FailingConsumer(); - CompletableFuture g = f.thenAccept(r); - f.complete(one); - checkCompletedWithWrappedCFException(g); - assertEquals(1, r.invocationCount); - } - - /** - * thenAccept result completes exceptionally if source cancelled - */ - public void testThenAccept4() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAccept(r); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } - - /** - * thenCombine result completes normally after normal completion - * of sources - */ - public void testThenCombine_normalCompletion1() { - for (boolean createIncomplete : new boolean[] { true, false }) - for (boolean fFirst : new boolean[] { true, false }) + public void testHandle_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) + for (boolean createIncomplete : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - CompletableFuture h = null; - if (createIncomplete) h = m.thenCombine(f, g, r); - - if (fFirst) - f.complete(v1); - else - g.complete(v2); - if (createIncomplete) checkIncomplete(h); - assertEquals(0, r.invocationCount); - if (!fFirst) - f.complete(v1); - else - g.complete(v2); - if (!createIncomplete) h = m.thenCombine(f, g, r); + final AtomicInteger a = new AtomicInteger(0); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.handle + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertSame(x, v1); + threadAssertNull(t); + a.getAndIncrement(); + return inc(v1); + }); + if (createIncomplete) assertTrue(f.complete(v1)); - checkCompletedNormally(h, subtract(v1, v2)); + checkCompletedNormally(g, inc(v1)); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - assertEquals(1, r.invocationCount); - } - } + assertEquals(1, a.get()); + }} /** - * thenCombine result completes exceptionally after exceptional - * completion of either source + * handle action completes normally with function value on + * exceptional completion of source */ - public void testThenCombine_exceptionalCompletion1() { + public void testHandle_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); + final AtomicInteger a = new AtomicInteger(0); final CFException ex = new CFException(); + if (!createIncomplete) f.completeExceptionally(ex); + final CompletableFuture g = m.handle + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertNull(x); + threadAssertSame(t, ex); + a.getAndIncrement(); + return v1; + }); + if (createIncomplete) f.completeExceptionally(ex); - f.completeExceptionally(ex); - checkIncomplete(h); - g.complete(v1); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); checkCompletedNormally(g, v1); - } - } + checkCompletedExceptionally(f, ex); + assertEquals(1, a.get()); + }} - public void testThenCombine_exceptionalCompletion2() { + /** + * handle action completes normally with function value on + * cancelled source + */ + public void testHandle_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - checkIncomplete(h); - f.complete(v1); + final AtomicInteger a = new AtomicInteger(0); + if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); + final CompletableFuture g = m.handle + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertNull(x); + threadAssertTrue(t instanceof CancellationException); + a.getAndIncrement(); + return v1; + }); + if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } + checkCompletedNormally(g, v1); + checkCancelled(f); + assertEquals(1, a.get()); + }} - public void testThenCombine_exceptionalCompletion3() { + /** + * handle result completes exceptionally if action does + */ + public void testHandle_sourceFailedActionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.thenCombine(f, g, r); + final AtomicInteger a = new AtomicInteger(0); + final CFException ex1 = new CFException(); + final CFException ex2 = new CFException(); + if (!createIncomplete) f.completeExceptionally(ex1); + final CompletableFuture g = m.handle + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertNull(x); + threadAssertSame(ex1, t); + a.getAndIncrement(); + throw ex2; + }); + if (createIncomplete) f.completeExceptionally(ex1); - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } + checkCompletedWithWrappedException(g, ex2); + checkCompletedExceptionally(f, ex1); + assertEquals(1, a.get()); + }} - public void testThenCombine_exceptionalCompletion4() { + public void testHandle_sourceCompletedNormallyActionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); + final AtomicInteger a = new AtomicInteger(0); final CFException ex = new CFException(); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.handle + (f, + (Integer x, Throwable t) -> { + m.checkExecutionMode(); + threadAssertSame(x, v1); + threadAssertNull(t); + a.getAndIncrement(); + throw ex; + }); + if (createIncomplete) assertTrue(f.complete(v1)); - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.thenCombine(f, g, r); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + checkCompletedWithWrappedException(g, ex); + checkCompletedNormally(f, v1); + assertEquals(1, a.get()); + }} /** - * thenCombine result completes exceptionally if action does + * runAsync completes after running Runnable */ - public void testThenCombine_actionFailed1() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingBiFunction r = new FailingBiFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); - - f.complete(v1); - checkIncomplete(h); - g.complete(v2); + public void testRunAsync_normalCompletion() { + ExecutionMode[] executionModes = { + ExecutionMode.ASYNC, + ExecutionMode.EXECUTOR, + }; + for (ExecutionMode m : executionModes) + { + final Noop r = new Noop(m); + final CompletableFuture f = m.runAsync(r); + assertNull(f.join()); + checkCompletedNormally(f, null); + r.assertInvoked(); + }} - checkCompletedWithWrappedCFException(h); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + /** + * failing runAsync completes exceptionally after running Runnable + */ + public void testRunAsync_exceptionalCompletion() { + ExecutionMode[] executionModes = { + ExecutionMode.ASYNC, + ExecutionMode.EXECUTOR, + }; + for (ExecutionMode m : executionModes) + { + final FailingRunnable r = new FailingRunnable(m); + final CompletableFuture f = m.runAsync(r); + checkCompletedWithWrappedCFException(f); + r.assertInvoked(); + }} - public void testThenCombine_actionFailed2() { - for (ExecutionMode m : ExecutionMode.values()) + /** + * supplyAsync completes with result of supplier + */ + public void testSupplyAsync_normalCompletion() { + ExecutionMode[] executionModes = { + ExecutionMode.ASYNC, + ExecutionMode.EXECUTOR, + }; + for (ExecutionMode m : executionModes) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingBiFunction r = new FailingBiFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); - - g.complete(v2); - checkIncomplete(h); - f.complete(v1); - - checkCompletedWithWrappedCFException(h); + { + final IntegerSupplier r = new IntegerSupplier(m, v1); + final CompletableFuture f = m.supplyAsync(r); + assertSame(v1, f.join()); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + r.assertInvoked(); + }} /** - * thenCombine result completes exceptionally if either source cancelled + * Failing supplyAsync completes exceptionally */ - public void testThenCombine_sourceCancelled1() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); - - assertTrue(f.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - g.complete(v1); + public void testSupplyAsync_exceptionalCompletion() { + ExecutionMode[] executionModes = { + ExecutionMode.ASYNC, + ExecutionMode.EXECUTOR, + }; + for (ExecutionMode m : executionModes) + { + FailingSupplier r = new FailingSupplier(m); + CompletableFuture f = m.supplyAsync(r); + checkCompletedWithWrappedCFException(f); + r.assertInvoked(); + }} - checkCompletedWithWrappedCancellationException(h); - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + // seq completion methods - public void testThenCombine_sourceCancelled2() { + /** + * thenRun result completes normally after normal completion of source + */ + public void testThenRun_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - final CompletableFuture h = m.thenCombine(f, g, r); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); - assertTrue(g.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - f.complete(v1); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); + final CompletableFuture h0 = m.thenRun(f, rs[0]); + final CompletableFuture h1 = m.runAfterBoth(f, f, rs[1]); + final CompletableFuture h2 = m.runAfterEither(f, f, rs[2]); + checkIncomplete(h0); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(f.complete(v1)); + final CompletableFuture h3 = m.thenRun(f, rs[3]); + final CompletableFuture h4 = m.runAfterBoth(f, f, rs[4]); + final CompletableFuture h5 = m.runAfterEither(f, f, rs[5]); + + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + checkCompletedNormally(h4, null); + checkCompletedNormally(h5, null); checkCompletedNormally(f, v1); - } - } + for (Noop r : rs) r.assertInvoked(); + }} - public void testThenCombine_sourceCancelled3() { + /** + * thenRun result completes exceptionally after exceptional + * completion of source + */ + public void testThenRun_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + { + final CFException ex = new CFException(); final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); - - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.thenCombine(f, g, r); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } + final CompletableFuture h0 = m.thenRun(f, rs[0]); + final CompletableFuture h1 = m.runAfterBoth(f, f, rs[1]); + final CompletableFuture h2 = m.runAfterEither(f, f, rs[2]); + checkIncomplete(h0); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(f.completeExceptionally(ex)); + final CompletableFuture h3 = m.thenRun(f, rs[3]); + final CompletableFuture h4 = m.runAfterBoth(f, f, rs[4]); + final CompletableFuture h5 = m.runAfterEither(f, f, rs[5]); + + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedWithWrappedException(h4, ex); + checkCompletedWithWrappedException(h5, ex); + checkCompletedExceptionally(f, ex); + for (Noop r : rs) r.assertNotInvoked(); + }} - public void testThenCombine_sourceCancelled4() { + /** + * thenRun result completes exceptionally if source cancelled + */ + public void testThenRun_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractFunction r = new SubtractFunction(); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); + final CompletableFuture h0 = m.thenRun(f, rs[0]); + final CompletableFuture h1 = m.runAfterBoth(f, f, rs[1]); + final CompletableFuture h2 = m.runAfterEither(f, f, rs[2]); + checkIncomplete(h0); + checkIncomplete(h1); + checkIncomplete(h2); assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.thenCombine(f, g, r); - - checkCompletedWithWrappedCancellationException(h); + final CompletableFuture h3 = m.thenRun(f, rs[3]); + final CompletableFuture h4 = m.runAfterBoth(f, f, rs[4]); + final CompletableFuture h5 = m.runAfterEither(f, f, rs[5]); + + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + checkCompletedWithWrappedCancellationException(h4); + checkCompletedWithWrappedCancellationException(h5); checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + for (Noop r : rs) r.assertNotInvoked(); + }} /** - * thenAcceptBoth result completes normally after normal - * completion of sources + * thenRun result completes exceptionally if action does */ - public void testThenAcceptBoth_normalCompletion1() { + public void testThenRun_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - - f.complete(v1); - checkIncomplete(h); - assertEquals(0, r.invocationCount); - g.complete(v2); + final FailingRunnable[] rs = new FailingRunnable[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m); - checkCompletedNormally(h, null); - assertEquals(r.value, subtract(v1, v2)); + final CompletableFuture h0 = m.thenRun(f, rs[0]); + final CompletableFuture h1 = m.runAfterBoth(f, f, rs[1]); + final CompletableFuture h2 = m.runAfterEither(f, f, rs[2]); + assertTrue(f.complete(v1)); + final CompletableFuture h3 = m.thenRun(f, rs[3]); + final CompletableFuture h4 = m.runAfterBoth(f, f, rs[4]); + final CompletableFuture h5 = m.runAfterEither(f, f, rs[5]); + + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + checkCompletedWithWrappedCFException(h4); + checkCompletedWithWrappedCFException(h5); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } - - public void testThenAcceptBoth_normalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - - g.complete(v2); - checkIncomplete(h); - assertEquals(0, r.invocationCount); - f.complete(v1); - - checkCompletedNormally(h, null); - assertEquals(r.value, subtract(v1, v2)); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } - - public void testThenAcceptBoth_normalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - - g.complete(v2); - f.complete(v1); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - - checkCompletedNormally(h, null); - assertEquals(r.value, subtract(v1, v2)); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + }} - public void testThenAcceptBoth_normalCompletion4() { + /** + * thenApply result completes normally after normal completion of source + */ + public void testThenApply_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); + final IncFunction[] rs = new IncFunction[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - f.complete(v1); - g.complete(v2); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final CompletableFuture h0 = m.thenApply(f, rs[0]); + final CompletableFuture h1 = m.applyToEither(f, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + assertTrue(f.complete(v1)); + final CompletableFuture h2 = m.thenApply(f, rs[2]); + final CompletableFuture h3 = m.applyToEither(f, f, rs[3]); - checkCompletedNormally(h, null); - assertEquals(r.value, subtract(v1, v2)); + checkCompletedNormally(h0, inc(v1)); + checkCompletedNormally(h1, inc(v1)); + checkCompletedNormally(h2, inc(v1)); + checkCompletedNormally(h3, inc(v1)); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + for (IncFunction r : rs) r.assertValue(inc(v1)); + }} /** - * thenAcceptBoth result completes exceptionally after exceptional - * completion of either source + * thenApply result completes exceptionally after exceptional + * completion of source */ - public void testThenAcceptBoth_exceptionalCompletion1() { + public void testThenApply_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + { final CFException ex = new CFException(); - - f.completeExceptionally(ex); - checkIncomplete(h); - g.complete(v1); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } - - public void testThenAcceptBoth_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - final CFException ex = new CFException(); + final IncFunction[] rs = new IncFunction[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - g.completeExceptionally(ex); - checkIncomplete(h); - f.complete(v1); + final CompletableFuture h0 = m.thenApply(f, rs[0]); + final CompletableFuture h1 = m.applyToEither(f, f, rs[1]); + assertTrue(f.completeExceptionally(ex)); + final CompletableFuture h2 = m.thenApply(f, rs[2]); + final CompletableFuture h3 = m.applyToEither(f, f, rs[3]); + + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedExceptionally(f, ex); + for (IncFunction r : rs) r.assertNotInvoked(); + }} - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } - - public void testThenAcceptBoth_exceptionalCompletion3() { + /** + * thenApply result completes exceptionally if source cancelled + */ + public void testThenApply_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CFException ex = new CFException(); + final IncFunction[] rs = new IncFunction[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final CompletableFuture h0 = m.thenApply(f, rs[0]); + final CompletableFuture h1 = m.applyToEither(f, f, rs[1]); + assertTrue(f.cancel(mayInterruptIfRunning)); + final CompletableFuture h2 = m.thenApply(f, rs[2]); + final CompletableFuture h3 = m.applyToEither(f, f, rs[3]); - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + checkCancelled(f); + for (IncFunction r : rs) r.assertNotInvoked(); + }} - public void testThenAcceptBoth_exceptionalCompletion4() { + /** + * thenApply result completes exceptionally if action does + */ + public void testThenApply_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CFException ex = new CFException(); + final FailingFunction[] rs = new FailingFunction[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m); - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final CompletableFuture h0 = m.thenApply(f, rs[0]); + final CompletableFuture h1 = m.applyToEither(f, f, rs[1]); + assertTrue(f.complete(v1)); + final CompletableFuture h2 = m.thenApply(f, rs[2]); + final CompletableFuture h3 = m.applyToEither(f, f, rs[3]); - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + checkCompletedNormally(f, v1); + }} /** - * thenAcceptBoth result completes exceptionally if action does + * thenAccept result completes normally after normal completion of source */ - public void testThenAcceptBoth_actionFailed1() { + public void testThenAccept_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingBiConsumer r = new FailingBiConsumer(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final NoopConsumer[] rs = new NoopConsumer[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); - f.complete(v1); - checkIncomplete(h); - g.complete(v2); + final CompletableFuture h0 = m.thenAccept(f, rs[0]); + final CompletableFuture h1 = m.acceptEither(f, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + assertTrue(f.complete(v1)); + final CompletableFuture h2 = m.thenAccept(f, rs[2]); + final CompletableFuture h3 = m.acceptEither(f, f, rs[3]); - checkCompletedWithWrappedCFException(h); + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + for (NoopConsumer r : rs) r.assertValue(v1); + }} - public void testThenAcceptBoth_actionFailed2() { + /** + * thenAccept result completes exceptionally after exceptional + * completion of source + */ + public void testThenAccept_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { + final CFException ex = new CFException(); final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingBiConsumer r = new FailingBiConsumer(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - - g.complete(v2); - checkIncomplete(h); - f.complete(v1); + final NoopConsumer[] rs = new NoopConsumer[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); - checkCompletedWithWrappedCFException(h); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + final CompletableFuture h0 = m.thenAccept(f, rs[0]); + final CompletableFuture h1 = m.acceptEither(f, f, rs[1]); + assertTrue(f.completeExceptionally(ex)); + final CompletableFuture h2 = m.thenAccept(f, rs[2]); + final CompletableFuture h3 = m.acceptEither(f, f, rs[3]); + + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedExceptionally(f, ex); + for (NoopConsumer r : rs) r.assertNotInvoked(); + }} /** - * thenAcceptBoth result completes exceptionally if either source cancelled + * thenAccept result completes exceptionally if source cancelled */ - public void testThenAcceptBoth_sourceCancelled1() { + public void testThenAccept_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final NoopConsumer[] rs = new NoopConsumer[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); + final CompletableFuture h0 = m.thenAccept(f, rs[0]); + final CompletableFuture h1 = m.acceptEither(f, f, rs[1]); assertTrue(f.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - g.complete(v1); + final CompletableFuture h2 = m.thenAccept(f, rs[2]); + final CompletableFuture h3 = m.acceptEither(f, f, rs[3]); - checkCompletedWithWrappedCancellationException(h); + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + for (NoopConsumer r : rs) r.assertNotInvoked(); + }} - public void testThenAcceptBoth_sourceCancelled2() { + /** + * thenAccept result completes exceptionally if action does + */ + public void testThenAccept_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final FailingConsumer[] rs = new FailingConsumer[4]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m); - assertTrue(g.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - f.complete(v1); + final CompletableFuture h0 = m.thenAccept(f, rs[0]); + final CompletableFuture h1 = m.acceptEither(f, f, rs[1]); + assertTrue(f.complete(v1)); + final CompletableFuture h2 = m.thenAccept(f, rs[2]); + final CompletableFuture h3 = m.acceptEither(f, f, rs[3]); - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); checkCompletedNormally(f, v1); - } - } + }} - public void testThenAcceptBoth_sourceCancelled3() { + /** + * thenCombine result completes normally after normal completion + * of sources + */ + public void testThenCombine_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); + final SubtractFunction[] rs = new SubtractFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m); - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h0 = m.thenCombine(f, g, rs[0]); + final CompletableFuture h1 = m.thenCombine(fst, fst, rs[1]); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.thenCombine(f, g, rs[2]); + final CompletableFuture h3 = m.thenCombine(fst, fst, rs[3]); + checkIncomplete(h0); rs[0].assertNotInvoked(); + checkIncomplete(h2); rs[2].assertNotInvoked(); + checkCompletedNormally(h1, subtract(w1, w1)); + checkCompletedNormally(h3, subtract(w1, w1)); + rs[1].assertValue(subtract(w1, w1)); + rs[3].assertValue(subtract(w1, w1)); + assertTrue(snd.complete(w2)); + final CompletableFuture h4 = m.thenCombine(f, g, rs[4]); + + checkCompletedNormally(h0, subtract(v1, v2)); + checkCompletedNormally(h2, subtract(v1, v2)); + checkCompletedNormally(h4, subtract(v1, v2)); + rs[0].assertValue(subtract(v1, v2)); + rs[2].assertValue(subtract(v1, v2)); + rs[4].assertValue(subtract(v1, v2)); - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); checkCompletedNormally(f, v1); - } - } - - public void testThenAcceptBoth_sourceCancelled4() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final SubtractAction r = new SubtractAction(); - - assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.thenAcceptBoth(f, g, r); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + checkCompletedNormally(g, v2); + }} /** - * runAfterBoth result completes normally after normal - * completion of sources + * thenCombine result completes exceptionally after exceptional + * completion of either source */ - public void testRunAfterBoth_normalCompletion1() { + public void testThenCombine_exceptionalCompletion() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - f.complete(v1); - checkIncomplete(h); - assertEquals(0, r.invocationCount); - g.complete(v2); - - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + final CFException ex = new CFException(); + final SubtractFunction r1 = new SubtractFunction(m); + final SubtractFunction r2 = new SubtractFunction(m); + final SubtractFunction r3 = new SubtractFunction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.completeExceptionally(ex) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.completeExceptionally(ex); + + final CompletableFuture h1 = m.thenCombine(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.thenCombine(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.thenCombine(f, g, r3); + + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCompletedExceptionally(failFirst ? fst : snd, ex); + }} - public void testRunAfterBoth_normalCompletion2() { + /** + * thenCombine result completes exceptionally if either source cancelled + */ + public void testThenCombine_sourceCancelled() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - g.complete(v2); - checkIncomplete(h); - assertEquals(0, r.invocationCount); - f.complete(v1); + final SubtractFunction r1 = new SubtractFunction(m); + final SubtractFunction r2 = new SubtractFunction(m); + final SubtractFunction r3 = new SubtractFunction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.cancel(mayInterruptIfRunning) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.cancel(mayInterruptIfRunning); + + final CompletableFuture h1 = m.thenCombine(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.thenCombine(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.thenCombine(f, g, r3); + + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCancelled(failFirst ? fst : snd); + }} - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } - - public void testRunAfterBoth_normalCompletion3() { + /** + * thenCombine result completes exceptionally if action does + */ + public void testThenCombine_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) + for (boolean fFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - - g.complete(v2); - f.complete(v1); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); + final FailingBiFunction r1 = new FailingBiFunction(m); + final FailingBiFunction r2 = new FailingBiFunction(m); + final FailingBiFunction r3 = new FailingBiFunction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h1 = m.thenCombine(f, g, r1); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.thenCombine(f, g, r2); + assertTrue(snd.complete(w2)); + final CompletableFuture h3 = m.thenCombine(f, g, r3); + + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + r1.assertInvoked(); + r2.assertInvoked(); + r3.assertInvoked(); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - } - } + }} - public void testRunAfterBoth_normalCompletion4() { + /** + * thenAcceptBoth result completes normally after normal + * completion of sources + */ + public void testThenAcceptBoth_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) + for (boolean fFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - - f.complete(v1); - g.complete(v2); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); + final SubtractAction r1 = new SubtractAction(m); + final SubtractAction r2 = new SubtractAction(m); + final SubtractAction r3 = new SubtractAction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h1 = m.thenAcceptBoth(f, g, r1); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.thenAcceptBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + assertTrue(snd.complete(w2)); + final CompletableFuture h3 = m.thenAcceptBoth(f, g, r3); + + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + r1.assertValue(subtract(v1, v2)); + r2.assertValue(subtract(v1, v2)); + r3.assertValue(subtract(v1, v2)); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - } - } + }} /** - * runAfterBoth result completes exceptionally after exceptional + * thenAcceptBoth result completes exceptionally after exceptional * completion of either source */ - public void testRunAfterBoth_exceptionalCompletion1() { + public void testThenAcceptBoth_exceptionalCompletion() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - final CFException ex = new CFException(); - - f.completeExceptionally(ex); - checkIncomplete(h); - g.complete(v1); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } - - public void testRunAfterBoth_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - checkIncomplete(h); - f.complete(v1); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } - - public void testRunAfterBoth_exceptionalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); final CFException ex = new CFException(); + final SubtractAction r1 = new SubtractAction(m); + final SubtractAction r2 = new SubtractAction(m); + final SubtractAction r3 = new SubtractAction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.completeExceptionally(ex) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.completeExceptionally(ex); + + final CompletableFuture h1 = m.thenAcceptBoth(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.thenAcceptBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.thenAcceptBoth(f, g, r3); + + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCompletedExceptionally(failFirst ? fst : snd, ex); + }} - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } - - public void testRunAfterBoth_exceptionalCompletion4() { + /** + * thenAcceptBoth result completes exceptionally if either source cancelled + */ + public void testThenAcceptBoth_sourceCancelled() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CFException ex = new CFException(); - - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedWithWrappedCFException(h, ex); - checkCompletedWithWrappedCFException(f, ex); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + final SubtractAction r1 = new SubtractAction(m); + final SubtractAction r2 = new SubtractAction(m); + final SubtractAction r3 = new SubtractAction(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.cancel(mayInterruptIfRunning) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.cancel(mayInterruptIfRunning); + + final CompletableFuture h1 = m.thenAcceptBoth(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.thenAcceptBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.thenAcceptBoth(f, g, r3); + + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCancelled(failFirst ? fst : snd); + }} /** - * runAfterBoth result completes exceptionally if action does + * thenAcceptBoth result completes exceptionally if action does */ - public void testRunAfterBoth_actionFailed1() { + public void testThenAcceptBoth_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) + for (boolean fFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final FailingNoop r = new FailingNoop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - f.complete(v1); - checkIncomplete(h); - g.complete(v2); - - checkCompletedWithWrappedCFException(h); + final FailingBiConsumer r1 = new FailingBiConsumer(m); + final FailingBiConsumer r2 = new FailingBiConsumer(m); + final FailingBiConsumer r3 = new FailingBiConsumer(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h1 = m.thenAcceptBoth(f, g, r1); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.thenAcceptBoth(f, g, r2); + assertTrue(snd.complete(w2)); + final CompletableFuture h3 = m.thenAcceptBoth(f, g, r3); + + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + r1.assertInvoked(); + r2.assertInvoked(); + r3.assertInvoked(); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - } - } + }} - public void testRunAfterBoth_actionFailed2() { + /** + * runAfterBoth result completes normally after normal + * completion of sources + */ + public void testRunAfterBoth_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) + for (boolean fFirst : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final FailingNoop r = new FailingNoop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - g.complete(v2); - checkIncomplete(h); - f.complete(v1); - - checkCompletedWithWrappedCFException(h); + final Noop r1 = new Noop(m); + final Noop r2 = new Noop(m); + final Noop r3 = new Noop(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h1 = m.runAfterBoth(f, g, r1); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.runAfterBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + assertTrue(snd.complete(w2)); + final CompletableFuture h3 = m.runAfterBoth(f, g, r3); + + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + r1.assertInvoked(); + r2.assertInvoked(); + r3.assertInvoked(); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - } - } + }} /** - * runAfterBoth result completes exceptionally if either source cancelled + * runAfterBoth result completes exceptionally after exceptional + * completion of either source */ - public void testRunAfterBoth_sourceCancelled1() { + public void testRunAfterBoth_exceptionalCompletion() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - assertTrue(f.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - g.complete(v1); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + final CFException ex = new CFException(); + final Noop r1 = new Noop(m); + final Noop r2 = new Noop(m); + final Noop r3 = new Noop(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.completeExceptionally(ex) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.completeExceptionally(ex); + + final CompletableFuture h1 = m.runAfterBoth(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.runAfterBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.runAfterBoth(f, g, r3); + + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCompletedExceptionally(failFirst ? fst : snd, ex); + }} - public void testRunAfterBoth_sourceCancelled2() { + /** + * runAfterBoth result completes exceptionally if either source cancelled + */ + public void testRunAfterBoth_sourceCancelled() throws Throwable { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (boolean failFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterBoth(f, g, r); + final Noop r1 = new Noop(m); + final Noop r2 = new Noop(m); + final Noop r3 = new Noop(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Callable complete1 = failFirst ? + () -> fst.cancel(mayInterruptIfRunning) : + () -> fst.complete(v1); + final Callable complete2 = failFirst ? + () -> snd.complete(v1) : + () -> snd.cancel(mayInterruptIfRunning); + + final CompletableFuture h1 = m.runAfterBoth(f, g, r1); + assertTrue(complete1.call()); + final CompletableFuture h2 = m.runAfterBoth(f, g, r2); + checkIncomplete(h1); + checkIncomplete(h2); + assertTrue(complete2.call()); + final CompletableFuture h3 = m.runAfterBoth(f, g, r3); + + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + r1.assertNotInvoked(); + r2.assertNotInvoked(); + r3.assertNotInvoked(); + checkCompletedNormally(failFirst ? snd : fst, v1); + checkCancelled(failFirst ? fst : snd); + }} - assertTrue(g.cancel(mayInterruptIfRunning)); - checkIncomplete(h); - f.complete(v1); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - } - } - - public void testRunAfterBoth_sourceCancelled3() { + /** + * runAfterBoth result completes exceptionally if action does + */ + public void testRunAfterBoth_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(g); - assertEquals(0, r.invocationCount); + final FailingRunnable r1 = new FailingRunnable(m); + final FailingRunnable r2 = new FailingRunnable(m); + final FailingRunnable r3 = new FailingRunnable(m); + + final CompletableFuture fst = fFirst ? f : g; + final CompletableFuture snd = !fFirst ? f : g; + final Integer w1 = fFirst ? v1 : v2; + final Integer w2 = !fFirst ? v1 : v2; + + final CompletableFuture h1 = m.runAfterBoth(f, g, r1); + assertTrue(fst.complete(w1)); + final CompletableFuture h2 = m.runAfterBoth(f, g, r2); + assertTrue(snd.complete(w2)); + final CompletableFuture h3 = m.runAfterBoth(f, g, r3); + + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + r1.assertInvoked(); + r2.assertInvoked(); + r3.assertInvoked(); checkCompletedNormally(f, v1); - } - } - - public void testRunAfterBoth_sourceCancelled4() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - - assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.runAfterBoth(f, g, r); - - checkCompletedWithWrappedCancellationException(h); - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - } - } + checkCompletedNormally(g, v2); + }} /** * applyToEither result completes normally after normal completion * of either source */ - public void testApplyToEither_normalCompletion1() { + public void testApplyToEither_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); + final IncFunction[] rs = new IncFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); f.complete(v1); - checkCompletedNormally(h, inc(v1)); - g.complete(v2); - - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - checkCompletedNormally(h, inc(v1)); - } - } - - public void testApplyToEither_normalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); - + checkCompletedNormally(h0, inc(v1)); + checkCompletedNormally(h1, inc(v1)); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); + checkCompletedNormally(h2, inc(v1)); + checkCompletedNormally(h3, inc(v1)); g.complete(v2); - checkCompletedNormally(h, inc(v2)); - f.complete(v1); - - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - checkCompletedNormally(h, inc(v2)); - } - } - public void testApplyToEither_normalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - f.complete(v1); - g.complete(v2); - final CompletableFuture h = m.applyToEither(f, g, r); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.applyToEither(f, g, rs[4]); + final CompletableFuture h5 = m.applyToEither(g, f, rs[5]); + rs[4].assertValue(h4.join()); + rs[5].assertValue(h5.join()); + assertTrue(Objects.equals(inc(v1), h4.join()) || + Objects.equals(inc(v2), h4.join())); + assertTrue(Objects.equals(inc(v1), h5.join()) || + Objects.equals(inc(v2), h5.join())); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - - // unspecified behavior - assertTrue(Objects.equals(h.join(), inc(v1)) || - Objects.equals(h.join(), inc(v2))); - assertEquals(1, r.invocationCount); - } - } + checkCompletedNormally(h0, inc(v1)); + checkCompletedNormally(h1, inc(v1)); + checkCompletedNormally(h2, inc(v1)); + checkCompletedNormally(h3, inc(v1)); + for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1)); + }} /** * applyToEither result completes exceptionally after exceptional * completion of either source */ - public void testApplyToEither_exceptionalCompletion1() { + public void testApplyToEither_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); final CFException ex = new CFException(); + final IncFunction[] rs = new IncFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); f.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); g.complete(v1); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - checkCompletedWithWrappedCFException(f, ex); - checkCompletedWithWrappedCFException(h, ex); - } - } - - public void testApplyToEither_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); - f.complete(v1); - - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCFException(g, ex); - checkCompletedWithWrappedCFException(h, ex); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.applyToEither(f, g, rs[4]); + final CompletableFuture h5 = m.applyToEither(g, f, rs[5]); + try { + assertEquals(inc(v1), h4.join()); + rs[4].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h4, ex); + rs[4].assertNotInvoked(); } - } - - public void testApplyToEither_exceptionalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.applyToEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), inc(v1)); - assertEquals(1, r.invocationCount); + assertEquals(inc(v1), h5.join()); + rs[5].assertValue(inc(v1)); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h5, ex); + rs[5].assertNotInvoked(); } - checkCompletedWithWrappedCFException(g, ex); - checkCompletedNormally(f, v1); - } - } + checkCompletedExceptionally(f, ex); + checkCompletedNormally(g, v1); + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedWithWrappedException(h4, ex); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} - public void testApplyToEither_exceptionalCompletion4() { + public void testApplyToEither_exceptionalCompletion2() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); final CFException ex = new CFException(); + final IncFunction[] rs = new IncFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.applyToEither(f, g, r); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); + assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); - // unspecified behavior - Integer v; + // unspecified behavior - both source completions available try { - assertEquals(h.join(), inc(v1)); - assertEquals(1, r.invocationCount); + assertEquals(inc(v1), h0.join()); + rs[0].assertValue(inc(v1)); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h0, ex); + rs[0].assertNotInvoked(); } - - checkCompletedWithWrappedCFException(f, ex); - checkCompletedNormally(g, v1); + try { + assertEquals(inc(v1), h1.join()); + rs[1].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h1, ex); + rs[1].assertNotInvoked(); } - } - - /** - * applyToEither result completes exceptionally if action does - */ - public void testApplyToEither_actionFailed1() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingFunction r = new FailingFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); - - f.complete(v1); - checkCompletedWithWrappedCFException(h); - g.complete(v2); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); + try { + assertEquals(inc(v1), h2.join()); + rs[2].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h2, ex); + rs[2].assertNotInvoked(); + } + try { + assertEquals(inc(v1), h3.join()); + rs[3].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h3, ex); + rs[3].assertNotInvoked(); } - } - - public void testApplyToEither_actionFailed2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingFunction r = new FailingFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); - g.complete(v2); - checkCompletedWithWrappedCFException(h); - f.complete(v1); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + checkCompletedExceptionally(g, ex); + }} /** * applyToEither result completes exceptionally if either source cancelled */ - public void testApplyToEither_sourceCancelled1() { + public void testApplyToEither_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); + final IncFunction[] rs = new IncFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - assertTrue(f.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); + f.cancel(mayInterruptIfRunning); + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); g.complete(v1); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.applyToEither(f, g, rs[4]); + final CompletableFuture h5 = m.applyToEither(g, f, rs[5]); + try { + assertEquals(inc(v1), h4.join()); + rs[4].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedCancellationException(h4); + rs[4].assertNotInvoked(); + } + try { + assertEquals(inc(v1), h5.join()); + rs[5].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedCancellationException(h5); + rs[5].assertNotInvoked(); + } + checkCancelled(f); - assertEquals(0, r.invocationCount); checkCompletedNormally(g, v1); - checkCompletedWithWrappedCancellationException(h); - } - } + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} public void testApplyToEither_sourceCancelled2() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - final CompletableFuture h = m.applyToEither(f, g, r); + final IncFunction[] rs = new IncFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m); - assertTrue(g.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); - f.complete(v1); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); + assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning)); + assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning)); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); - checkCancelled(g); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCancellationException(h); + // unspecified behavior - both source completions available + try { + assertEquals(inc(v1), h0.join()); + rs[0].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedCancellationException(h0); + rs[0].assertNotInvoked(); } - } - - public void testApplyToEither_sourceCancelled3() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.applyToEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), inc(v1)); - assertEquals(1, r.invocationCount); + assertEquals(inc(v1), h1.join()); + rs[1].assertValue(inc(v1)); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCancellationException(h1); + rs[1].assertNotInvoked(); } - - checkCancelled(g); - checkCompletedNormally(f, v1); + try { + assertEquals(inc(v1), h2.join()); + rs[2].assertValue(inc(v1)); + } catch (CompletionException ok) { + checkCompletedWithWrappedCancellationException(h2); + rs[2].assertNotInvoked(); } - } - - public void testApplyToEither_sourceCancelled4() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncFunction r = new IncFunction(); - - assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.applyToEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), inc(v1)); - assertEquals(1, r.invocationCount); + assertEquals(inc(v1), h3.join()); + rs[3].assertValue(inc(v1)); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCancellationException(h3); + rs[3].assertNotInvoked(); } - checkCancelled(f); - checkCompletedNormally(g, v1); - } - } + checkCompletedNormally(f, v1); + checkCancelled(g); + }} /** - * acceptEither result completes normally after normal completion - * of either source + * applyToEither result completes exceptionally if action does */ - public void testAcceptEither_normalCompletion1() { + public void testApplyToEither_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); + final FailingFunction[] rs = new FailingFunction[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m); + final CompletableFuture h0 = m.applyToEither(f, g, rs[0]); + final CompletableFuture h1 = m.applyToEither(g, f, rs[1]); f.complete(v1); - checkCompletedNormally(h, null); - assertEquals(r.value, inc(v1)); + final CompletableFuture h2 = m.applyToEither(f, g, rs[2]); + final CompletableFuture h3 = m.applyToEither(g, f, rs[3]); + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + for (int i = 0; i < 4; i++) rs[i].assertValue(v1); + g.complete(v2); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - checkCompletedNormally(h, null); - } - } + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.applyToEither(f, g, rs[4]); + final CompletableFuture h5 = m.applyToEither(g, f, rs[5]); - public void testAcceptEither_normalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); - - g.complete(v2); - checkCompletedNormally(h, null); - assertEquals(r.value, inc(v2)); - f.complete(v1); + checkCompletedWithWrappedCFException(h4); + assertTrue(Objects.equals(v1, rs[4].value) || + Objects.equals(v2, rs[4].value)); + checkCompletedWithWrappedCFException(h5); + assertTrue(Objects.equals(v1, rs[5].value) || + Objects.equals(v2, rs[5].value)); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - checkCompletedNormally(h, null); - } - } - public void testAcceptEither_normalCompletion3() { + }} + + /** + * acceptEither result completes normally after normal completion + * of either source + */ + public void testAcceptEither_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - - f.complete(v1); - g.complete(v2); - final CompletableFuture h = m.acceptEither(f, g, r); + final NoopConsumer[] rs = new NoopConsumer[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); + + final CompletableFuture h0 = m.acceptEither(f, g, rs[0]); + final CompletableFuture h1 = m.acceptEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); + f.complete(v1); + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + rs[0].assertValue(v1); + rs[1].assertValue(v1); + final CompletableFuture h2 = m.acceptEither(f, g, rs[2]); + final CompletableFuture h3 = m.acceptEither(g, f, rs[3]); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + rs[2].assertValue(v1); + rs[3].assertValue(v1); + g.complete(v2); + + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.acceptEither(f, g, rs[4]); + final CompletableFuture h5 = m.acceptEither(g, f, rs[5]); + checkCompletedNormally(h4, null); + checkCompletedNormally(h5, null); + assertTrue(Objects.equals(v1, rs[4].value) || + Objects.equals(v2, rs[4].value)); + assertTrue(Objects.equals(v1, rs[5].value) || + Objects.equals(v2, rs[5].value)); - checkCompletedNormally(h, null); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - - // unspecified behavior - assertTrue(Objects.equals(r.value, inc(v1)) || - Objects.equals(r.value, inc(v2))); - } - } + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + for (int i = 0; i < 4; i++) rs[i].assertValue(v1); + }} /** * acceptEither result completes exceptionally after exceptional * completion of either source */ - public void testAcceptEither_exceptionalCompletion1() { + public void testAcceptEither_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); final CFException ex = new CFException(); + final NoopConsumer[] rs = new NoopConsumer[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); + final CompletableFuture h0 = m.acceptEither(f, g, rs[0]); + final CompletableFuture h1 = m.acceptEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); f.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); - g.complete(v1); - - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - checkCompletedWithWrappedCFException(f, ex); - checkCompletedWithWrappedCFException(h, ex); - } - } - - public void testAcceptEither_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + final CompletableFuture h2 = m.acceptEither(f, g, rs[2]); + final CompletableFuture h3 = m.acceptEither(g, f, rs[3]); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); - f.complete(v1); + g.complete(v1); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCFException(g, ex); - checkCompletedWithWrappedCFException(h, ex); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.acceptEither(f, g, rs[4]); + final CompletableFuture h5 = m.acceptEither(g, f, rs[5]); + try { + assertNull(h4.join()); + rs[4].assertValue(v1); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h4, ex); + rs[4].assertNotInvoked(); } - } - - public void testAcceptEither_exceptionalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.acceptEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); - assertEquals(inc(v1), r.value); + assertNull(h5.join()); + rs[5].assertValue(v1); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h5, ex); + rs[5].assertNotInvoked(); } - checkCompletedWithWrappedCFException(g, ex); - checkCompletedNormally(f, v1); - } - } + checkCompletedExceptionally(f, ex); + checkCompletedNormally(g, v1); + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedWithWrappedException(h4, ex); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} - public void testAcceptEither_exceptionalCompletion4() { + public void testAcceptEither_exceptionalCompletion2() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); final CFException ex = new CFException(); + final NoopConsumer[] rs = new NoopConsumer[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.acceptEither(f, g, r); + final CompletableFuture h0 = m.acceptEither(f, g, rs[0]); + final CompletableFuture h1 = m.acceptEither(g, f, rs[1]); + assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + final CompletableFuture h2 = m.acceptEither(f, g, rs[2]); + final CompletableFuture h3 = m.acceptEither(g, f, rs[3]); - // unspecified behavior - Integer v; + // unspecified behavior - both source completions available try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); - assertEquals(inc(v1), r.value); + assertEquals(null, h0.join()); + rs[0].assertValue(v1); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h0, ex); + rs[0].assertNotInvoked(); } - - checkCompletedWithWrappedCFException(f, ex); - checkCompletedNormally(g, v1); + try { + assertEquals(null, h1.join()); + rs[1].assertValue(v1); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h1, ex); + rs[1].assertNotInvoked(); } - } - - /** - * acceptEither result completes exceptionally if action does - */ - public void testAcceptEither_actionFailed1() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingConsumer r = new FailingConsumer(); - final CompletableFuture h = m.acceptEither(f, g, r); - - f.complete(v1); - checkCompletedWithWrappedCFException(h); - g.complete(v2); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); + try { + assertEquals(null, h2.join()); + rs[2].assertValue(v1); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h2, ex); + rs[2].assertNotInvoked(); + } + try { + assertEquals(null, h3.join()); + rs[3].assertValue(v1); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h3, ex); + rs[3].assertNotInvoked(); } - } - - public void testAcceptEither_actionFailed2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingConsumer r = new FailingConsumer(); - final CompletableFuture h = m.acceptEither(f, g, r); - g.complete(v2); - checkCompletedWithWrappedCFException(h); - f.complete(v1); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + checkCompletedExceptionally(g, ex); + }} /** * acceptEither result completes exceptionally if either source cancelled */ - public void testAcceptEither_sourceCancelled1() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); - - assertTrue(f.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); - g.complete(v1); - - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - checkCompletedWithWrappedCancellationException(h); - } - } - - public void testAcceptEither_sourceCancelled2() { + public void testAcceptEither_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - final CompletableFuture h = m.acceptEither(f, g, r); - - assertTrue(g.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); - f.complete(v1); - - checkCancelled(g); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCancellationException(h); - } - } - - public void testAcceptEither_sourceCancelled3() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { + final NoopConsumer[] rs = new NoopConsumer[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m); - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); + final CompletableFuture h0 = m.acceptEither(f, g, rs[0]); + final CompletableFuture h1 = m.acceptEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); + f.cancel(mayInterruptIfRunning); + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + final CompletableFuture h2 = m.acceptEither(f, g, rs[2]); + final CompletableFuture h3 = m.acceptEither(g, f, rs[3]); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.acceptEither(f, g, r); + g.complete(v1); - // unspecified behavior - Integer v; + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.acceptEither(f, g, rs[4]); + final CompletableFuture h5 = m.acceptEither(g, f, rs[5]); try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); - assertEquals(inc(v1), r.value); + assertNull(h4.join()); + rs[4].assertValue(v1); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCancellationException(h4); + rs[4].assertNotInvoked(); } - - checkCancelled(g); - checkCompletedNormally(f, v1); - } - } - - public void testAcceptEither_sourceCancelled4() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final IncAction r = new IncAction(); - - assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.acceptEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); - assertEquals(inc(v1), r.value); + assertNull(h5.join()); + rs[5].assertValue(v1); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCancellationException(h5); + rs[5].assertNotInvoked(); } checkCancelled(f); checkCompletedNormally(g, v1); - } - } + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} /** - * runAfterEither result completes normally after normal completion - * of either source + * acceptEither result completes exceptionally if action does */ - public void testRunAfterEither_normalCompletion1() { + public void testAcceptEither_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); + final FailingConsumer[] rs = new FailingConsumer[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m); + final CompletableFuture h0 = m.acceptEither(f, g, rs[0]); + final CompletableFuture h1 = m.acceptEither(g, f, rs[1]); f.complete(v1); - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - g.complete(v2); + final CompletableFuture h2 = m.acceptEither(f, g, rs[2]); + final CompletableFuture h3 = m.acceptEither(g, f, rs[3]); + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + for (int i = 0; i < 4; i++) rs[i].assertValue(v1); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - } - } - - public void testRunAfterEither_normalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { + g.complete(v2); - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.acceptEither(f, g, rs[4]); + final CompletableFuture h5 = m.acceptEither(g, f, rs[5]); - g.complete(v2); - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - f.complete(v1); + checkCompletedWithWrappedCFException(h4); + assertTrue(Objects.equals(v1, rs[4].value) || + Objects.equals(v2, rs[4].value)); + checkCompletedWithWrappedCFException(h5); + assertTrue(Objects.equals(v1, rs[5].value) || + Objects.equals(v2, rs[5].value)); checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - checkCompletedNormally(h, null); - assertEquals(1, r.invocationCount); - } - } - public void testRunAfterEither_normalCompletion3() { + }} + + /** + * runAfterEither result completes normally after normal completion + * of either source + */ + public void testRunAfterEither_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); + final CompletableFuture h0 = m.runAfterEither(f, g, rs[0]); + final CompletableFuture h1 = m.runAfterEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); f.complete(v1); + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + rs[0].assertInvoked(); + rs[1].assertInvoked(); + final CompletableFuture h2 = m.runAfterEither(f, g, rs[2]); + final CompletableFuture h3 = m.runAfterEither(g, f, rs[3]); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + rs[2].assertInvoked(); + rs[3].assertInvoked(); + g.complete(v2); - final CompletableFuture h = m.runAfterEither(f, g, r); - checkCompletedNormally(h, null); + final CompletableFuture h4 = m.runAfterEither(f, g, rs[4]); + final CompletableFuture h5 = m.runAfterEither(g, f, rs[5]); + checkCompletedNormally(f, v1); checkCompletedNormally(g, v2); - assertEquals(1, r.invocationCount); - } - } + checkCompletedNormally(h0, null); + checkCompletedNormally(h1, null); + checkCompletedNormally(h2, null); + checkCompletedNormally(h3, null); + checkCompletedNormally(h4, null); + checkCompletedNormally(h5, null); + for (int i = 0; i < 6; i++) rs[i].assertInvoked(); + }} /** * runAfterEither result completes exceptionally after exceptional * completion of either source */ - public void testRunAfterEither_exceptionalCompletion1() { + public void testRunAfterEither_exceptionalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); final CFException ex = new CFException(); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); - f.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); - g.complete(v1); - - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - checkCompletedWithWrappedCFException(f, ex); - checkCompletedWithWrappedCFException(h, ex); - } - } + final CompletableFuture h0 = m.runAfterEither(f, g, rs[0]); + final CompletableFuture h1 = m.runAfterEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); + assertTrue(f.completeExceptionally(ex)); + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + final CompletableFuture h2 = m.runAfterEither(f, g, rs[2]); + final CompletableFuture h3 = m.runAfterEither(g, f, rs[3]); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); - public void testRunAfterEither_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + assertTrue(g.complete(v1)); - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - checkCompletedWithWrappedCFException(h, ex); - f.complete(v1); - - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCFException(g, ex); - checkCompletedWithWrappedCFException(h, ex); + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.runAfterEither(f, g, rs[4]); + final CompletableFuture h5 = m.runAfterEither(g, f, rs[5]); + try { + assertNull(h4.join()); + rs[4].assertInvoked(); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h4, ex); + rs[4].assertNotInvoked(); } - } - - public void testRunAfterEither_exceptionalCompletion3() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CFException ex = new CFException(); - - g.completeExceptionally(ex); - f.complete(v1); - final CompletableFuture h = m.runAfterEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); + assertNull(h5.join()); + rs[5].assertInvoked(); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h5, ex); + rs[5].assertNotInvoked(); } - checkCompletedWithWrappedCFException(g, ex); - checkCompletedNormally(f, v1); - } - } + checkCompletedExceptionally(f, ex); + checkCompletedNormally(g, v1); + checkCompletedWithWrappedException(h0, ex); + checkCompletedWithWrappedException(h1, ex); + checkCompletedWithWrappedException(h2, ex); + checkCompletedWithWrappedException(h3, ex); + checkCompletedWithWrappedException(h4, ex); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} - public void testRunAfterEither_exceptionalCompletion4() { + public void testRunAfterEither_exceptionalCompletion2() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean fFirst : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); final CFException ex = new CFException(); + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); - f.completeExceptionally(ex); - g.complete(v1); - final CompletableFuture h = m.runAfterEither(f, g, r); + final CompletableFuture h0 = m.runAfterEither(f, g, rs[0]); + final CompletableFuture h1 = m.runAfterEither(g, f, rs[1]); + assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex)); + final CompletableFuture h2 = m.runAfterEither(f, g, rs[2]); + final CompletableFuture h3 = m.runAfterEither(g, f, rs[3]); - // unspecified behavior - Integer v; + // unspecified behavior - both source completions available try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); + assertEquals(null, h0.join()); + rs[0].assertInvoked(); } catch (CompletionException ok) { - checkCompletedWithWrappedCFException(h, ex); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedException(h0, ex); + rs[0].assertNotInvoked(); } - - checkCompletedWithWrappedCFException(f, ex); - checkCompletedNormally(g, v1); + try { + assertEquals(null, h1.join()); + rs[1].assertInvoked(); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h1, ex); + rs[1].assertNotInvoked(); } - } - - /** - * runAfterEither result completes exceptionally if action does - */ - public void testRunAfterEither_actionFailed1() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingNoop r = new FailingNoop(); - final CompletableFuture h = m.runAfterEither(f, g, r); - - f.complete(v1); - checkCompletedWithWrappedCFException(h); - g.complete(v2); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); + try { + assertEquals(null, h2.join()); + rs[2].assertInvoked(); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h2, ex); + rs[2].assertNotInvoked(); + } + try { + assertEquals(null, h3.join()); + rs[3].assertInvoked(); + } catch (CompletionException ok) { + checkCompletedWithWrappedException(h3, ex); + rs[3].assertNotInvoked(); } - } - - public void testRunAfterEither_actionFailed2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) - for (Integer v2 : new Integer[] { 2, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final FailingNoop r = new FailingNoop(); - final CompletableFuture h = m.runAfterEither(f, g, r); - g.complete(v2); - checkCompletedWithWrappedCFException(h); - f.complete(v1); checkCompletedNormally(f, v1); - checkCompletedNormally(g, v2); - } - } + checkCompletedExceptionally(g, ex); + }} /** * runAfterEither result completes exceptionally if either source cancelled */ - public void testRunAfterEither_sourceCancelled1() { + public void testRunAfterEither_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); - - assertTrue(f.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); - g.complete(v1); - - checkCancelled(f); - assertEquals(0, r.invocationCount); - checkCompletedNormally(g, v1); - checkCompletedWithWrappedCancellationException(h); - } - } - - public void testRunAfterEither_sourceCancelled2() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - final CompletableFuture h = m.runAfterEither(f, g, r); - - assertTrue(g.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(h); - f.complete(v1); - - checkCancelled(g); - assertEquals(0, r.invocationCount); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCancellationException(h); - } - } + final Noop[] rs = new Noop[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m); - public void testRunAfterEither_sourceCancelled3() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); + final CompletableFuture h0 = m.runAfterEither(f, g, rs[0]); + final CompletableFuture h1 = m.runAfterEither(g, f, rs[1]); + checkIncomplete(h0); + checkIncomplete(h1); + rs[0].assertNotInvoked(); + rs[1].assertNotInvoked(); + f.cancel(mayInterruptIfRunning); + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + final CompletableFuture h2 = m.runAfterEither(f, g, rs[2]); + final CompletableFuture h3 = m.runAfterEither(g, f, rs[3]); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); - assertTrue(g.cancel(mayInterruptIfRunning)); - f.complete(v1); - final CompletableFuture h = m.runAfterEither(f, g, r); + assertTrue(g.complete(v1)); - // unspecified behavior - Integer v; + // unspecified behavior - both source completions available + final CompletableFuture h4 = m.runAfterEither(f, g, rs[4]); + final CompletableFuture h5 = m.runAfterEither(g, f, rs[5]); try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); + assertNull(h4.join()); + rs[4].assertInvoked(); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); - } - - checkCancelled(g); - checkCompletedNormally(f, v1); + checkCompletedWithWrappedCancellationException(h4); + rs[4].assertNotInvoked(); } - } - - public void testRunAfterEither_sourceCancelled4() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = new CompletableFuture<>(); - final Noop r = new Noop(); - - assertTrue(f.cancel(mayInterruptIfRunning)); - g.complete(v1); - final CompletableFuture h = m.runAfterEither(f, g, r); - - // unspecified behavior - Integer v; try { - assertEquals(h.join(), null); - assertEquals(1, r.invocationCount); + assertNull(h5.join()); + rs[5].assertInvoked(); } catch (CompletionException ok) { - checkCompletedWithWrappedCancellationException(h); - assertEquals(0, r.invocationCount); + checkCompletedWithWrappedCancellationException(h5); + rs[5].assertNotInvoked(); } checkCancelled(f); checkCompletedNormally(g, v1); - } - } + checkCompletedWithWrappedCancellationException(h0); + checkCompletedWithWrappedCancellationException(h1); + checkCompletedWithWrappedCancellationException(h2); + checkCompletedWithWrappedCancellationException(h3); + for (int i = 0; i < 4; i++) rs[i].assertNotInvoked(); + }} /** - * thenCompose result completes normally after normal completion of source + * runAfterEither result completes exceptionally if action does */ - public void testThenCompose_normalCompletion1() { + public void testRunAfterEither_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (Integer v1 : new Integer[] { 1, null }) + for (Integer v2 : new Integer[] { 2, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFutureInc r = new CompletableFutureInc(); - final CompletableFuture g = f.thenCompose(r); - f.complete(v1); - checkCompletedNormally(g, inc(v1)); + final CompletableFuture g = new CompletableFuture<>(); + final FailingRunnable[] rs = new FailingRunnable[6]; + for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m); + + final CompletableFuture h0 = m.runAfterEither(f, g, rs[0]); + final CompletableFuture h1 = m.runAfterEither(g, f, rs[1]); + assertTrue(f.complete(v1)); + final CompletableFuture h2 = m.runAfterEither(f, g, rs[2]); + final CompletableFuture h3 = m.runAfterEither(g, f, rs[3]); + checkCompletedWithWrappedCFException(h0); + checkCompletedWithWrappedCFException(h1); + checkCompletedWithWrappedCFException(h2); + checkCompletedWithWrappedCFException(h3); + for (int i = 0; i < 4; i++) rs[i].assertInvoked(); + assertTrue(g.complete(v2)); + final CompletableFuture h4 = m.runAfterEither(f, g, rs[4]); + final CompletableFuture h5 = m.runAfterEither(g, f, rs[5]); + checkCompletedWithWrappedCFException(h4); + checkCompletedWithWrappedCFException(h5); + checkCompletedNormally(f, v1); - assertEquals(1, r.invocationCount); - } - } + checkCompletedNormally(g, v2); + for (int i = 0; i < 6; i++) rs[i].assertInvoked(); + }} - public void testThenCompose_normalCompletion2() { + /** + * thenCompose result completes normally after normal completion of source + */ + public void testThenCompose_normalCompletion() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFutureInc r = new CompletableFutureInc(); - f.complete(v1); - final CompletableFuture g = f.thenCompose(r); + final CompletableFutureInc r = new CompletableFutureInc(m); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.thenCompose(f, r); + if (createIncomplete) assertTrue(f.complete(v1)); + checkCompletedNormally(g, inc(v1)); checkCompletedNormally(f, v1); - assertEquals(1, r.invocationCount); - } - } + r.assertValue(v1); + }} /** * thenCompose result completes exceptionally after exceptional * completion of source */ - public void testThenCompose_exceptionalCompletion1() { - for (ExecutionMode m : ExecutionMode.values()) { - + public void testThenCompose_exceptionalCompletion() { + for (ExecutionMode m : ExecutionMode.values()) + for (boolean createIncomplete : new boolean[] { true, false }) + { final CFException ex = new CFException(); - final CompletableFutureInc r = new CompletableFutureInc(); + final CompletableFutureInc r = new CompletableFutureInc(m); final CompletableFuture f = new CompletableFuture<>(); - final CompletableFuture g = f.thenCompose(r); - f.completeExceptionally(ex); - checkCompletedWithWrappedCFException(g, ex); - checkCompletedWithWrappedCFException(f, ex); - } - } - - public void testThenCompose_exceptionalCompletion2() { - for (ExecutionMode m : ExecutionMode.values()) { + if (!createIncomplete) f.completeExceptionally(ex); + final CompletableFuture g = m.thenCompose(f, r); + if (createIncomplete) f.completeExceptionally(ex); - final CFException ex = new CFException(); - final CompletableFuture f = new CompletableFuture<>(); - f.completeExceptionally(ex); - final CompletableFutureInc r = new CompletableFutureInc(); - final CompletableFuture g = f.thenCompose(r); - checkCompletedWithWrappedCFException(g, ex); - checkCompletedWithWrappedCFException(f, ex); - } - } + checkCompletedWithWrappedException(g, ex); + checkCompletedExceptionally(f, ex); + r.assertNotInvoked(); + }} /** * thenCompose result completes exceptionally if action does */ - public void testThenCompose_actionFailed1() { + public void testThenCompose_actionFailed() { for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + for (Integer v1 : new Integer[] { 1, null }) + { final CompletableFuture f = new CompletableFuture<>(); final FailingCompletableFutureFunction r - = new FailingCompletableFutureFunction(); - final CompletableFuture g = f.thenCompose(r); - f.complete(v1); - checkCompletedWithWrappedCFException(g); - checkCompletedNormally(f, v1); - } - } + = new FailingCompletableFutureFunction(m); + if (!createIncomplete) assertTrue(f.complete(v1)); + final CompletableFuture g = m.thenCompose(f, r); + if (createIncomplete) assertTrue(f.complete(v1)); - public void testThenCompose_actionFailed2() { - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { - - final CompletableFuture f = new CompletableFuture<>(); - f.complete(v1); - final FailingCompletableFutureFunction r - = new FailingCompletableFutureFunction(); - final CompletableFuture g = f.thenCompose(r); checkCompletedWithWrappedCFException(g); checkCompletedNormally(f, v1); - } - } + }} /** * thenCompose result completes exceptionally if source cancelled */ - public void testThenCompose_sourceCancelled1() { + public void testThenCompose_sourceCancelled() { for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { - + for (boolean createIncomplete : new boolean[] { true, false }) + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + { final CompletableFuture f = new CompletableFuture<>(); - final CompletableFutureInc r = new CompletableFutureInc(); - final CompletableFuture g = f.thenCompose(r); - assertTrue(f.cancel(mayInterruptIfRunning)); - checkCompletedWithWrappedCancellationException(g); - checkCancelled(f); + final CompletableFutureInc r = new CompletableFutureInc(m); + if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning)); + final CompletableFuture g = m.thenCompose(f, r); + if (createIncomplete) { + checkIncomplete(g); + assertTrue(f.cancel(mayInterruptIfRunning)); } - } - - public void testThenCompose_sourceCancelled2() { - for (ExecutionMode m : ExecutionMode.values()) - for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { - final CompletableFuture f = new CompletableFuture<>(); - assertTrue(f.cancel(mayInterruptIfRunning)); - final CompletableFutureInc r = new CompletableFutureInc(); - final CompletableFuture g = f.thenCompose(r); checkCompletedWithWrappedCancellationException(g); checkCancelled(f); - } - } - - // asyncs - - /** - * thenRunAsync result completes normally after normal completion of source - */ - public void testThenRunAsync() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r); - f.complete(null); - checkCompletedNormally(g, null); - - // reordered version - f = new CompletableFuture<>(); - f.complete(null); - r = new Noop(); - g = f.thenRunAsync(r); - checkCompletedNormally(g, null); - } - - /** - * thenRunAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenRunAsync2() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r); - f.completeExceptionally(new CFException()); - try { - g.join(); - shouldThrow(); - } catch (CompletionException success) {} - checkCompletedWithWrappedCFException(g); - } - - /** - * thenRunAsync result completes exceptionally if action does - */ - public void testThenRunAsync3() { - CompletableFuture f = new CompletableFuture<>(); - FailingNoop r = new FailingNoop(); - CompletableFuture g = f.thenRunAsync(r); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenRunAsync result completes exceptionally if source cancelled - */ - public void testThenRunAsync4() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } - - /** - * thenApplyAsync result completes normally after normal completion of source - */ - public void testThenApplyAsync() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc); - f.complete(one); - checkCompletedNormally(g, two); - } - - /** - * thenApplyAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenApplyAsync2() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenApplyAsync result completes exceptionally if action does - */ - public void testThenApplyAsync3() { - CompletableFuture f = new CompletableFuture<>(); - FailingFunction r = new FailingFunction(); - CompletableFuture g = f.thenApplyAsync(r); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenApplyAsync result completes exceptionally if source cancelled - */ - public void testThenApplyAsync4() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } - - /** - * thenAcceptAsync result completes normally after normal - * completion of source - */ - public void testThenAcceptAsync() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r); - f.complete(one); - checkCompletedNormally(g, null); - assertEquals(r.value, (Integer) 2); - } - - /** - * thenAcceptAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenAcceptAsync2() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenAcceptAsync result completes exceptionally if action does - */ - public void testThenAcceptAsync3() { - CompletableFuture f = new CompletableFuture<>(); - FailingConsumer r = new FailingConsumer(); - CompletableFuture g = f.thenAcceptAsync(r); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenAcceptAsync result completes exceptionally if source cancelled - */ - public void testThenAcceptAsync4() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } - - // async with explicit executors - - /** - * thenRunAsync result completes normally after normal completion of source - */ - public void testThenRunAsyncE() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r, new ThreadExecutor()); - f.complete(null); - checkCompletedNormally(g, null); - - // reordered version - f = new CompletableFuture<>(); - f.complete(null); - r = new Noop(); - g = f.thenRunAsync(r, new ThreadExecutor()); - checkCompletedNormally(g, null); - } - - /** - * thenRunAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenRunAsync2E() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r, new ThreadExecutor()); - f.completeExceptionally(new CFException()); - try { - g.join(); - shouldThrow(); - } catch (CompletionException success) {} - checkCompletedWithWrappedCFException(g); - } - - /** - * thenRunAsync result completes exceptionally if action does - */ - public void testThenRunAsync3E() { - CompletableFuture f = new CompletableFuture<>(); - FailingNoop r = new FailingNoop(); - CompletableFuture g = f.thenRunAsync(r, new ThreadExecutor()); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenRunAsync result completes exceptionally if source cancelled - */ - public void testThenRunAsync4E() { - CompletableFuture f = new CompletableFuture<>(); - Noop r = new Noop(); - CompletableFuture g = f.thenRunAsync(r, new ThreadExecutor()); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } + }} /** - * thenApplyAsync result completes normally after normal completion of source + * thenCompose result completes exceptionally if the result of the action does */ - public void testThenApplyAsyncE() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc, new ThreadExecutor()); - f.complete(one); - checkCompletedNormally(g, two); - } - - /** - * thenApplyAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenApplyAsync2E() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc, new ThreadExecutor()); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenApplyAsync result completes exceptionally if action does - */ - public void testThenApplyAsync3E() { - CompletableFuture f = new CompletableFuture<>(); - FailingFunction r = new FailingFunction(); - CompletableFuture g = f.thenApplyAsync(r, new ThreadExecutor()); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenApplyAsync result completes exceptionally if source cancelled - */ - public void testThenApplyAsync4E() { - CompletableFuture f = new CompletableFuture<>(); - CompletableFuture g = f.thenApplyAsync(inc, new ThreadExecutor()); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } - - /** - * thenAcceptAsync result completes normally after normal - * completion of source - */ - public void testThenAcceptAsyncE() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r, new ThreadExecutor()); - f.complete(one); - checkCompletedNormally(g, null); - assertEquals(r.value, (Integer) 2); - } - - /** - * thenAcceptAsync result completes exceptionally after exceptional - * completion of source - */ - public void testThenAcceptAsync2E() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r, new ThreadExecutor()); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(g); - } - - /** - * thenAcceptAsync result completes exceptionally if action does - */ - public void testThenAcceptAsync3E() { - CompletableFuture f = new CompletableFuture<>(); - FailingConsumer r = new FailingConsumer(); - CompletableFuture g = f.thenAcceptAsync(r, new ThreadExecutor()); - f.complete(null); - checkCompletedWithWrappedCFException(g); - } + public void testThenCompose_actionReturnsFailingFuture() { + for (ExecutionMode m : ExecutionMode.values()) + for (int order = 0; order < 6; order++) + for (Integer v1 : new Integer[] { 1, null }) + { + final CFException ex = new CFException(); + final CompletableFuture f = new CompletableFuture<>(); + final CompletableFuture g = new CompletableFuture<>(); + final CompletableFuture h; + // Test all permutations of orders + switch (order) { + case 0: + assertTrue(f.complete(v1)); + assertTrue(g.completeExceptionally(ex)); + h = m.thenCompose(f, (x -> g)); + break; + case 1: + assertTrue(f.complete(v1)); + h = m.thenCompose(f, (x -> g)); + assertTrue(g.completeExceptionally(ex)); + break; + case 2: + assertTrue(g.completeExceptionally(ex)); + assertTrue(f.complete(v1)); + h = m.thenCompose(f, (x -> g)); + break; + case 3: + assertTrue(g.completeExceptionally(ex)); + h = m.thenCompose(f, (x -> g)); + assertTrue(f.complete(v1)); + break; + case 4: + h = m.thenCompose(f, (x -> g)); + assertTrue(f.complete(v1)); + assertTrue(g.completeExceptionally(ex)); + break; + case 5: + h = m.thenCompose(f, (x -> g)); + assertTrue(f.complete(v1)); + assertTrue(g.completeExceptionally(ex)); + break; + default: throw new AssertionError(); + } - /** - * thenAcceptAsync result completes exceptionally if source cancelled - */ - public void testThenAcceptAsync4E() { - CompletableFuture f = new CompletableFuture<>(); - IncAction r = new IncAction(); - CompletableFuture g = f.thenAcceptAsync(r, new ThreadExecutor()); - assertTrue(f.cancel(true)); - checkCompletedWithWrappedCancellationException(g); - } + checkCompletedExceptionally(g, ex); + checkCompletedWithWrappedException(h, ex); + checkCompletedNormally(f, v1); + }} // other static methods @@ -3145,12 +3098,13 @@ public class CompletableFutureTest exten * when all components complete normally */ public void testAllOf_normal() throws Exception { - for (int k = 1; k < 20; ++k) { - CompletableFuture[] fs = (CompletableFuture[]) new CompletableFuture[k]; - for (int i = 0; i < k; ++i) + for (int k = 1; k < 10; k++) { + CompletableFuture[] fs + = (CompletableFuture[]) new CompletableFuture[k]; + for (int i = 0; i < k; i++) fs[i] = new CompletableFuture<>(); CompletableFuture f = CompletableFuture.allOf(fs); - for (int i = 0; i < k; ++i) { + for (int i = 0; i < k; i++) { checkIncomplete(f); checkIncomplete(CompletableFuture.allOf(fs)); fs[i].complete(one); @@ -3160,29 +3114,91 @@ public class CompletableFutureTest exten } } + public void testAllOf_backwards() throws Exception { + for (int k = 1; k < 10; k++) { + CompletableFuture[] fs + = (CompletableFuture[]) new CompletableFuture[k]; + for (int i = 0; i < k; i++) + fs[i] = new CompletableFuture<>(); + CompletableFuture f = CompletableFuture.allOf(fs); + for (int i = k - 1; i >= 0; i--) { + checkIncomplete(f); + checkIncomplete(CompletableFuture.allOf(fs)); + fs[i].complete(one); + } + checkCompletedNormally(f, null); + checkCompletedNormally(CompletableFuture.allOf(fs), null); + } + } + + public void testAllOf_exceptional() throws Exception { + for (int k = 1; k < 10; k++) { + CompletableFuture[] fs + = (CompletableFuture[]) new CompletableFuture[k]; + CFException ex = new CFException(); + for (int i = 0; i < k; i++) + fs[i] = new CompletableFuture<>(); + CompletableFuture f = CompletableFuture.allOf(fs); + for (int i = 0; i < k; i++) { + checkIncomplete(f); + checkIncomplete(CompletableFuture.allOf(fs)); + if (i != k/2) { + fs[i].complete(i); + checkCompletedNormally(fs[i], i); + } else { + fs[i].completeExceptionally(ex); + checkCompletedExceptionally(fs[i], ex); + } + } + checkCompletedWithWrappedException(f, ex); + checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex); + } + } + /** * anyOf(no component futures) returns an incomplete future */ public void testAnyOf_empty() throws Exception { + for (Integer v1 : new Integer[] { 1, null }) + { CompletableFuture f = CompletableFuture.anyOf(); checkIncomplete(f); - } + + f.complete(v1); + checkCompletedNormally(f, v1); + }} /** * anyOf returns a future completed normally with a value when * a component future does */ public void testAnyOf_normal() throws Exception { - for (int k = 0; k < 10; ++k) { + for (int k = 0; k < 10; k++) { CompletableFuture[] fs = new CompletableFuture[k]; - for (int i = 0; i < k; ++i) + for (int i = 0; i < k; i++) fs[i] = new CompletableFuture<>(); CompletableFuture f = CompletableFuture.anyOf(fs); checkIncomplete(f); - for (int i = 0; i < k; ++i) { - fs[i].complete(one); - checkCompletedNormally(f, one); - checkCompletedNormally(CompletableFuture.anyOf(fs), one); + for (int i = 0; i < k; i++) { + fs[i].complete(i); + checkCompletedNormally(f, 0); + int x = (int) CompletableFuture.anyOf(fs).join(); + assertTrue(0 <= x && x <= i); + } + } + } + public void testAnyOf_normal_backwards() throws Exception { + for (int k = 0; k < 10; k++) { + CompletableFuture[] fs = new CompletableFuture[k]; + for (int i = 0; i < k; i++) + fs[i] = new CompletableFuture<>(); + CompletableFuture f = CompletableFuture.anyOf(fs); + checkIncomplete(f); + for (int i = k - 1; i >= 0; i--) { + fs[i].complete(i); + checkCompletedNormally(f, k - 1); + int x = (int) CompletableFuture.anyOf(fs).join(); + assertTrue(i <= x && x <= k - 1); } } } @@ -3191,15 +3207,36 @@ public class CompletableFutureTest exten * anyOf result completes exceptionally when any component does. */ public void testAnyOf_exceptional() throws Exception { - for (int k = 0; k < 10; ++k) { + for (int k = 0; k < 10; k++) { CompletableFuture[] fs = new CompletableFuture[k]; - for (int i = 0; i < k; ++i) + CFException[] exs = new CFException[k]; + for (int i = 0; i < k; i++) { fs[i] = new CompletableFuture<>(); + exs[i] = new CFException(); + } CompletableFuture f = CompletableFuture.anyOf(fs); checkIncomplete(f); - for (int i = 0; i < k; ++i) { - fs[i].completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(f); + for (int i = 0; i < k; i++) { + fs[i].completeExceptionally(exs[i]); + checkCompletedWithWrappedException(f, exs[0]); + checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs)); + } + } + } + + public void testAnyOf_exceptional_backwards() throws Exception { + for (int k = 0; k < 10; k++) { + CompletableFuture[] fs = new CompletableFuture[k]; + CFException[] exs = new CFException[k]; + for (int i = 0; i < k; i++) { + fs[i] = new CompletableFuture<>(); + exs[i] = new CFException(); + } + CompletableFuture f = CompletableFuture.anyOf(fs); + checkIncomplete(f); + for (int i = k - 1; i >= 0; i--) { + fs[i].completeExceptionally(exs[i]); + checkCompletedWithWrappedException(f, exs[k - 1]); checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs)); } } @@ -3212,13 +3249,12 @@ public class CompletableFutureTest exten CompletableFuture f = new CompletableFuture<>(); CompletableFuture g = new CompletableFuture<>(); CompletableFuture nullFuture = (CompletableFuture)null; - CompletableFuture h; ThreadExecutor exec = new ThreadExecutor(); Runnable[] throwingActions = { () -> CompletableFuture.supplyAsync(null), () -> CompletableFuture.supplyAsync(null, exec), - () -> CompletableFuture.supplyAsync(supplyOne, null), + () -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null), () -> CompletableFuture.runAsync(null), () -> CompletableFuture.runAsync(null, exec), @@ -3291,13 +3327,12 @@ public class CompletableFutureTest exten () -> f.thenCompose(null), () -> f.thenComposeAsync(null), - () -> f.thenComposeAsync(new CompletableFutureInc(), null), + () -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null), () -> f.thenComposeAsync(null, exec), () -> f.exceptionally(null), () -> f.handle(null), - () -> CompletableFuture.allOf((CompletableFuture)null), () -> CompletableFuture.allOf((CompletableFuture[])null), () -> CompletableFuture.allOf(f, null), @@ -3323,195 +3358,352 @@ public class CompletableFutureTest exten assertSame(f, f.toCompletableFuture()); } + // jdk9 + /** - * whenComplete action executes on normal completion, propagating - * source result. + * newIncompleteFuture returns an incomplete CompletableFuture */ - public void testWhenComplete_normalCompletion1() { - for (boolean createIncomplete : new boolean[] { true, false }) - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + public void testNewIncompleteFuture() { + CompletableFuture f = new CompletableFuture<>(); + CompletableFuture g = f.newIncompleteFuture(); + checkIncomplete(f); + checkIncomplete(g); + } - final AtomicInteger a = new AtomicInteger(); - final CompletableFuture f = new CompletableFuture<>(); - if (!createIncomplete) f.complete(v1); - final CompletableFuture g = - m.whenComplete(f, - (Integer x, Throwable t) -> { - threadAssertSame(x, v1); - threadAssertNull(t); - a.getAndIncrement(); - }); - if (createIncomplete) f.complete(v1); - checkCompletedNormally(f, v1); - checkCompletedNormally(g, v1); - assertEquals(a.get(), 1); - } + /** + * completedStage returns a completed CompletionStage + */ + public void testCompletedStage() { + AtomicInteger x = new AtomicInteger(); + AtomicReference r = new AtomicReference(); + CompletionStage f = CompletableFuture.completedStage(1); + f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); + assertEquals(x.get(), 1); + assertNull(r.get()); } /** - * whenComplete action executes on exceptional completion, propagating - * source result. + * defaultExecutor by default returns the commonPool if + * it supports at least one thread. */ - public void testWhenComplete_exceptionalCompletion() { - for (boolean createIncomplete : new boolean[] { true, false }) - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + public void testDefaultExecutor() { + CompletableFuture f = new CompletableFuture<>(); + Executor e = f.defaultExecutor(); + Executor c = ForkJoinPool.commonPool(); + if (ForkJoinPool.getCommonPoolParallelism() > 1) + assertSame(e, c); + } - final AtomicInteger a = new AtomicInteger(); - final CFException ex = new CFException(); - final CompletableFuture f = new CompletableFuture<>(); - if (!createIncomplete) f.completeExceptionally(ex); - final CompletableFuture g = m.whenComplete - (f, - (Integer x, Throwable t) -> { - threadAssertNull(x); - threadAssertSame(t, ex); - a.getAndIncrement(); - }); - if (createIncomplete) f.completeExceptionally(ex); - checkCompletedWithWrappedCFException(f, ex); - checkCompletedWithWrappedCFException(g, ex); - assertEquals(a.get(), 1); - } + /** + * failedFuture returns a CompletableFuture completed + * exceptionally with the given Exception + */ + public void testFailedFuture() { + CFException ex = new CFException(); + CompletableFuture f = CompletableFuture.failedFuture(ex); + checkCompletedExceptionallyWithRootCause(f, ex); } /** - * If a whenComplete action throws an exception when triggered by - * a normal completion, it completes exceptionally + * failedFuture(null) throws NPE */ - public void testWhenComplete_actionFailed() { - for (boolean createIncomplete : new boolean[] { true, false }) - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + public void testFailedFuture2() { + try { + CompletableFuture f = CompletableFuture.failedFuture(null); + shouldThrow(); + } catch (NullPointerException success) {} + } - final CFException ex = new CFException(); - final CompletableFuture f = new CompletableFuture<>(); - if (!createIncomplete) f.complete(v1); - final CompletableFuture g = m.whenComplete - (f, - (Integer x, Throwable t) -> { - threadAssertSame(x, v1); - threadAssertNull(t); - throw ex; - }); - if (createIncomplete) f.complete(v1); - checkCompletedNormally(f, v1); - checkCompletedWithWrappedCFException(g, ex); - } + /** + * copy returns a CompletableFuture that is completed normally, + * with the same value, when source is. + */ + public void testCopy() { + CompletableFuture f = new CompletableFuture<>(); + CompletableFuture g = f.copy(); + checkIncomplete(f); + checkIncomplete(g); + f.complete(1); + checkCompletedNormally(f, 1); + checkCompletedNormally(g, 1); } /** - * If a whenComplete action throws an exception when triggered by - * a source completion that also throws an exception, the source - * exception takes precedence. + * copy returns a CompletableFuture that is completed exceptionally + * when source is. */ - public void testWhenComplete_actionFailedSourceFailed() { - for (boolean createIncomplete : new boolean[] { true, false }) - for (ExecutionMode m : ExecutionMode.values()) - for (Integer v1 : new Integer[] { 1, null }) { + public void testCopy2() { + CompletableFuture f = new CompletableFuture<>(); + CompletableFuture g = f.copy(); + checkIncomplete(f); + checkIncomplete(g); + CFException ex = new CFException(); + f.completeExceptionally(ex); + checkCompletedExceptionally(f, ex); + checkCompletedWithWrappedCFException(g); + } - final CFException ex1 = new CFException(); - final CFException ex2 = new CFException(); - final CompletableFuture f = new CompletableFuture<>(); + /** + * minimalCompletionStage returns a CompletableFuture that is + * completed normally, with the same value, when source is. + */ + public void testMinimalCompletionStage() { + CompletableFuture f = new CompletableFuture<>(); + CompletionStage g = f.minimalCompletionStage(); + AtomicInteger x = new AtomicInteger(); + AtomicReference r = new AtomicReference(); + checkIncomplete(f); + g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); + f.complete(1); + checkCompletedNormally(f, 1); + assertEquals(x.get(), 1); + assertNull(r.get()); + } - if (!createIncomplete) f.completeExceptionally(ex1); - final CompletableFuture g = m.whenComplete - (f, - (Integer x, Throwable t) -> { - threadAssertSame(t, ex1); - threadAssertNull(x); - throw ex2; - }); - if (createIncomplete) f.completeExceptionally(ex1); + /** + * minimalCompletionStage returns a CompletableFuture that is + * completed exceptionally when source is. + */ + public void testMinimalCompletionStage2() { + CompletableFuture f = new CompletableFuture<>(); + CompletionStage g = f.minimalCompletionStage(); + AtomicInteger x = new AtomicInteger(); + AtomicReference r = new AtomicReference(); + g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); + checkIncomplete(f); + CFException ex = new CFException(); + f.completeExceptionally(ex); + checkCompletedExceptionally(f, ex); + assertEquals(x.get(), 0); + assertEquals(r.get().getCause(), ex); + } - checkCompletedWithWrappedCFException(f, ex1); - checkCompletedWithWrappedCFException(g, ex1); - } + /** + * failedStage returns a Completionstage completed + * exceptionally with the given Exception + */ + public void testFailedStage() { + CFException ex = new CFException(); + CompletionStage f = CompletableFuture.failedStage(ex); + AtomicInteger x = new AtomicInteger(); + AtomicReference r = new AtomicReference(); + f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); + assertEquals(x.get(), 0); + assertEquals(r.get().getCause(), ex); } /** - * handleAsync action completes normally with function value on - * either normal or exceptional completion of source + * completeAsync completes with value of given supplier */ - public void testHandleAsync() { - CompletableFuture f, g; - IntegerHandler r; + public void testCompleteAsync() { + CompletableFuture f = new CompletableFuture<>(); + f.completeAsync(() -> 1); + f.join(); + checkCompletedNormally(f, 1); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.completeExceptionally(new CFException()); + /** + * completeAsync completes exceptionally if given supplier throws + */ + public void testCompleteAsync2() { + CompletableFuture f = new CompletableFuture<>(); + CFException ex = new CFException(); + f.completeAsync(() -> {if (true) throw ex; return 1;}); + try { + f.join(); + shouldThrow(); + } catch (Exception success) {} checkCompletedWithWrappedCFException(f); - checkCompletedNormally(g, three); - assertEquals(1, r.invocationCount); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.completeExceptionally(new CFException()); + /** + * completeAsync with given executor completes with value of given supplier + */ + public void testCompleteAsync3() { + CompletableFuture f = new CompletableFuture<>(); + f.completeAsync(() -> 1, new ThreadExecutor()); + f.join(); + checkCompletedNormally(f, 1); + } + + /** + * completeAsync with given executor completes exceptionally if + * given supplier throws + */ + public void testCompleteAsync4() { + CompletableFuture f = new CompletableFuture<>(); + CFException ex = new CFException(); + f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor()); + try { + f.join(); + shouldThrow(); + } catch (Exception success) {} checkCompletedWithWrappedCFException(f); - checkCompletedNormally(g, three); - assertEquals(1, r.invocationCount); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.complete(one); - checkCompletedNormally(f, one); - checkCompletedNormally(g, two); - assertEquals(1, r.invocationCount); + /** + * orTimeout completes with TimeoutException if not complete + */ + public void testOrTimeout() { + CompletableFuture f = new CompletableFuture<>(); + f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); + checkCompletedExceptionallyWithTimeout(f); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler()); - assertEquals(0, r.invocationCount); - f.complete(one); - checkCompletedNormally(f, one); - checkCompletedNormally(g, two); - assertEquals(1, r.invocationCount); + /** + * orTimeout completes normally if completed before timeout + */ + public void testOrTimeout2() { + CompletableFuture f = new CompletableFuture<>(); + f.complete(1); + f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); + checkCompletedNormally(f, 1); } /** - * handleAsync action with Executor completes normally with - * function value on either normal or exceptional completion of - * source + * completeOnTimeout completes with given value if not complete */ - public void testHandleAsync2() { - CompletableFuture f, g; - ThreadExecutor exec = new ThreadExecutor(); - IntegerHandler r; + public void testCompleteOnTimeout() { + CompletableFuture f = new CompletableFuture<>(); + f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); + f.join(); + checkCompletedNormally(f, -1); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler(), exec); - assertEquals(0, r.invocationCount); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(f); - checkCompletedNormally(g, three); - assertEquals(1, r.invocationCount); + /** + * completeOnTimeout has no effect if completed within timeout + */ + public void testCompleteOnTimeout2() { + CompletableFuture f = new CompletableFuture<>(); + f.complete(1); + f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS); + checkCompletedNormally(f, 1); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler(), exec); - assertEquals(0, r.invocationCount); - f.completeExceptionally(new CFException()); - checkCompletedWithWrappedCFException(f); - checkCompletedNormally(g, three); - assertEquals(1, r.invocationCount); + /** + * delayedExecutor returns an executor that delays submission + */ + public void testDelayedExecutor() { + long timeoutMillis = SMALL_DELAY_MS; + Executor d = CompletableFuture.delayedExecutor(timeoutMillis, + MILLISECONDS); + long startTime = System.nanoTime(); + CompletableFuture f = CompletableFuture.supplyAsync(() -> 1, d); + assertNull(f.getNow(null)); + try { + f.get(LONG_DELAY_MS, MILLISECONDS); + } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) > timeoutMillis/2); + checkCompletedNormally(f, 1); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler(), exec); - assertEquals(0, r.invocationCount); - f.complete(one); - checkCompletedNormally(f, one); - checkCompletedNormally(g, two); - assertEquals(1, r.invocationCount); + /** + * delayedExecutor for a given executor returns an executor that + * delays submission + */ + public void testDelayedExecutor2() { + long timeoutMillis = SMALL_DELAY_MS; + Executor d = CompletableFuture.delayedExecutor(timeoutMillis, + MILLISECONDS, + new ThreadExecutor()); + long startTime = System.nanoTime(); + CompletableFuture f = CompletableFuture.supplyAsync(() -> 1, d); + assertNull(f.getNow(null)); + try { + f.get(LONG_DELAY_MS, MILLISECONDS); + } catch (Throwable fail) { threadUnexpectedException(fail); } + assertTrue(millisElapsedSince(startTime) > timeoutMillis/2); + checkCompletedNormally(f, 1); + } - f = new CompletableFuture<>(); - g = f.handleAsync(r = new IntegerHandler(), exec); - assertEquals(0, r.invocationCount); - f.complete(one); - checkCompletedNormally(f, one); - checkCompletedNormally(g, two); - assertEquals(1, r.invocationCount); + //--- tests of implementation details; not part of official tck --- + + Object resultOf(CompletableFuture f) { + try { + java.lang.reflect.Field resultField + = CompletableFuture.class.getDeclaredField("result"); + resultField.setAccessible(true); + return resultField.get(f); + } catch (Throwable t) { throw new AssertionError(t); } } + public void testExceptionPropagationReusesResultObject() { + if (!testImplementationDetails) return; + for (ExecutionMode m : ExecutionMode.values()) + { + final CFException ex = new CFException(); + final CompletableFuture v42 = CompletableFuture.completedFuture(42); + final CompletableFuture incomplete = new CompletableFuture<>(); + + List, CompletableFuture>> funs + = new ArrayList<>(); + + funs.add((y) -> m.thenRun(y, new Noop(m))); + funs.add((y) -> m.thenAccept(y, new NoopConsumer(m))); + funs.add((y) -> m.thenApply(y, new IncFunction(m))); + + funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m))); + funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m))); + funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m))); + + funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m))); + funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m))); + funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m))); + + funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {})); + + funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m))); + + funs.add((y) -> CompletableFuture.allOf(new CompletableFuture[] {y, v42})); + funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture[] {y, incomplete})); + + for (Function, CompletableFuture> + fun : funs) { + CompletableFuture f = new CompletableFuture<>(); + f.completeExceptionally(ex); + CompletableFuture src = m.thenApply(f, new IncFunction(m)); + checkCompletedWithWrappedException(src, ex); + CompletableFuture dep = fun.apply(src); + checkCompletedWithWrappedException(dep, ex); + assertSame(resultOf(src), resultOf(dep)); + } + + for (Function, CompletableFuture> + fun : funs) { + CompletableFuture f = new CompletableFuture<>(); + CompletableFuture src = m.thenApply(f, new IncFunction(m)); + CompletableFuture dep = fun.apply(src); + f.completeExceptionally(ex); + checkCompletedWithWrappedException(src, ex); + checkCompletedWithWrappedException(dep, ex); + assertSame(resultOf(src), resultOf(dep)); + } + + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (Function, CompletableFuture> + fun : funs) { + CompletableFuture f = new CompletableFuture<>(); + f.cancel(mayInterruptIfRunning); + checkCancelled(f); + CompletableFuture src = m.thenApply(f, new IncFunction(m)); + checkCompletedWithWrappedCancellationException(src); + CompletableFuture dep = fun.apply(src); + checkCompletedWithWrappedCancellationException(dep); + assertSame(resultOf(src), resultOf(dep)); + } + + for (boolean mayInterruptIfRunning : new boolean[] { true, false }) + for (Function, CompletableFuture> + fun : funs) { + CompletableFuture f = new CompletableFuture<>(); + CompletableFuture src = m.thenApply(f, new IncFunction(m)); + CompletableFuture dep = fun.apply(src); + f.cancel(mayInterruptIfRunning); + checkCancelled(f); + checkCompletedWithWrappedCancellationException(src); + checkCompletedWithWrappedCancellationException(dep); + assertSame(resultOf(src), resultOf(dep)); + } + }} + }