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/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* |
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* This file is available under and governed by the GNU General Public |
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* License version 2 only, as published by the Free Software Foundation. |
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* However, the following notice accompanied the original version of this |
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* file: |
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* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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/* |
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* @test |
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* @bug 8005696 |
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* @summary Basic tests for CompletableFuture |
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* @library /lib/testlibrary/ |
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* @run main Basic |
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* @run main/othervm -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 Basic |
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* @author Chris Hegarty |
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*/ |
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|
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import static java.util.concurrent.CompletableFuture.runAsync; |
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import static java.util.concurrent.CompletableFuture.supplyAsync; |
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import static java.util.concurrent.ForkJoinPool.commonPool; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.lang.reflect.Array; |
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import java.util.concurrent.Phaser; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.concurrent.CompletionException; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import jdk.testlibrary.Utils; |
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|
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public class Basic { |
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static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000); |
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|
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static void checkCompletedNormally(CompletableFuture<?> cf, Object value) { |
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checkCompletedNormally(cf, value == null ? null : new Object[] { value }); |
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} |
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|
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static void checkCompletedNormally(CompletableFuture<?> cf, Object[] values) { |
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try { equalAnyOf(cf.join(), values); } catch (Throwable x) { unexpected(x); } |
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try { equalAnyOf(cf.getNow(null), values); } catch (Throwable x) { unexpected(x); } |
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try { equalAnyOf(cf.get(), values); } catch (Throwable x) { unexpected(x); } |
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try { equalAnyOf(cf.get(0L, SECONDS), values); } catch (Throwable x) { unexpected(x); } |
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check(cf.isDone(), "Expected isDone to be true, got:" + cf); |
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check(!cf.isCompletedExceptionally(), "Expected isCompletedExceptionally to return false"); |
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check(!cf.isCancelled(), "Expected isCancelled to be false"); |
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check(!cf.cancel(true), "Expected cancel to return false"); |
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check(cf.toString().matches(".*\\[.*Completed normally.*\\]")); |
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check(cf.complete(null) == false, "Expected complete() to fail"); |
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check(cf.completeExceptionally(new Throwable()) == false, |
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"Expected completeExceptionally() to fail"); |
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} |
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|
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static <T> void checkCompletedExceptionally(CompletableFuture<T> cf) |
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throws Exception |
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{ |
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checkCompletedExceptionally(cf, false); |
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} |
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|
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@SuppressWarnings("unchecked") |
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static <T> void checkCompletedExceptionally(CompletableFuture<T> cf, boolean cancelled) |
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throws Exception |
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{ |
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try { cf.join(); fail("Excepted exception to be thrown"); } |
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catch (CompletionException x) { if (cancelled) fail(); else pass(); } |
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catch (CancellationException x) { if (cancelled) pass(); else fail(); } |
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try { cf.getNow(null); fail("Excepted exception to be thrown"); } |
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catch (CompletionException x) { if (cancelled) fail(); else pass(); } |
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catch (CancellationException x) { if (cancelled) pass(); else fail(); } |
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try { cf.get(); fail("Excepted exception to be thrown");} |
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catch (CancellationException x) { if (cancelled) pass(); else fail(); } |
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catch (ExecutionException x) { if (cancelled) check(x.getCause() instanceof CancellationException); else pass(); } |
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try { cf.get(0L, SECONDS); fail("Excepted exception to be thrown");} |
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catch (CancellationException x) { if (cancelled) pass(); else fail(); } |
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catch (ExecutionException x) { if (cancelled) check(x.getCause() instanceof CancellationException); else pass(); } |
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check(cf.isDone(), "Expected isDone to be true, got:" + cf); |
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check(cf.isCompletedExceptionally(), "Expected isCompletedExceptionally"); |
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check(cf.isCancelled() == cancelled, "Expected isCancelled: " + cancelled + ", got:" + cf.isCancelled()); |
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check(cf.cancel(true) == cancelled, "Expected cancel: " + cancelled + ", got:" + cf.cancel(true)); |
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check(cf.toString().matches(".*\\[.*Completed exceptionally.*\\]")); // ## TODO: 'E'xceptionally |
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check(cf.complete((T)new Object()) == false, "Expected complete() to fail"); |
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check(cf.completeExceptionally(new Throwable()) == false, |
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"Expected completeExceptionally() to fail, already completed"); |
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} |
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|
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private static void realMain(String[] args) throws Throwable { |
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ExecutorService pool = Executors.newFixedThreadPool(2); |
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try { |
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test(pool); |
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} finally { |
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pool.shutdown(); |
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if (! pool.awaitTermination(LONG_DELAY_MS, MILLISECONDS)) |
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throw new Error(); |
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} |
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} |
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|
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static AtomicInteger atomicInt = new AtomicInteger(0); |
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|
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private static void test(ExecutorService executor) throws Throwable { |
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|
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Thread.currentThread().setName("mainThread"); |
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|
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//---------------------------------------------------------------- |
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// supplyAsync tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<String> cf = supplyAsync(() -> "a test string"); |
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checkCompletedNormally(cf, cf.join()); |
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cf = supplyAsync(() -> "a test string", commonPool()); |
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checkCompletedNormally(cf, cf.join()); |
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cf = supplyAsync(() -> "a test string", executor); |
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checkCompletedNormally(cf, cf.join()); |
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cf = supplyAsync(() -> { throw new RuntimeException(); }); |
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checkCompletedExceptionally(cf); |
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cf = supplyAsync(() -> { throw new RuntimeException(); }, commonPool()); |
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checkCompletedExceptionally(cf); |
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cf = supplyAsync(() -> { throw new RuntimeException(); }, executor); |
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checkCompletedExceptionally(cf); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// runAsync tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<Void> cf = runAsync(() -> {}); |
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checkCompletedNormally(cf, cf.join()); |
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cf = runAsync(() -> {}, commonPool()); |
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checkCompletedNormally(cf, cf.join()); |
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cf = runAsync(() -> {}, executor); |
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checkCompletedNormally(cf, cf.join()); |
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cf = runAsync(() -> { throw new RuntimeException(); }); |
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checkCompletedExceptionally(cf); |
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cf = runAsync(() -> { throw new RuntimeException(); }, commonPool()); |
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checkCompletedExceptionally(cf); |
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cf = runAsync(() -> { throw new RuntimeException(); }, executor); |
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checkCompletedExceptionally(cf); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// explicit completion |
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//---------------------------------------------------------------- |
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try { |
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final Phaser phaser = new Phaser(1); |
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final int phase = phaser.getPhase(); |
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CompletableFuture<Integer> cf; |
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cf = supplyAsync(() -> { phaser.awaitAdvance(phase); return 1; }); |
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cf.complete(2); |
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phaser.arrive(); |
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checkCompletedNormally(cf, 2); |
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|
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cf = supplyAsync(() -> { phaser.awaitAdvance(phase+1); return 1; }); |
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cf.completeExceptionally(new Throwable()); |
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phaser.arrive(); |
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checkCompletedExceptionally(cf); |
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|
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cf = supplyAsync(() -> { phaser.awaitAdvance(phase+2); return 1; }); |
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cf.cancel(true); |
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phaser.arrive(); |
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checkCompletedExceptionally(cf, true); |
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|
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cf = supplyAsync(() -> { phaser.awaitAdvance(phase+3); return 1; }); |
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check(cf.getNow(2) == 2); |
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phaser.arrive(); |
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checkCompletedNormally(cf, 1); |
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check(cf.getNow(2) == 1); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// thenApplyXXX tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<Integer> cf2; |
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CompletableFuture<String> cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenApply(x -> x.equals("a test string") ? 1 : 0); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, 1); |
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|
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenApplyAsync(x -> x.equals("a test string") ? 1 : 0); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, 1); |
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|
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenApplyAsync(x -> x.equals("a test string") ? 1 : 0, executor); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, 1); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenApply(x -> 0); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenApplyAsync(x -> 0); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenApplyAsync(x -> 0, executor); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// thenAcceptXXX tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<Void> cf2; |
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int before = atomicInt.get(); |
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CompletableFuture<String> cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenAccept(x -> { if (x.equals("a test string")) { atomicInt.incrementAndGet(); return; } throw new RuntimeException(); }); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenAcceptAsync(x -> { if (x.equals("a test string")) { atomicInt.incrementAndGet(); return; } throw new RuntimeException(); }); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenAcceptAsync(x -> { if (x.equals("a test string")) { atomicInt.incrementAndGet(); return; } throw new RuntimeException(); }, executor); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenAccept(x -> atomicInt.incrementAndGet()); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenAcceptAsync(x -> atomicInt.incrementAndGet()); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenAcceptAsync(x -> atomicInt.incrementAndGet(), executor ); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// thenRunXXX tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<Void> cf2; |
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int before = atomicInt.get(); |
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CompletableFuture<String> cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenRun(() -> atomicInt.incrementAndGet()); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenRunAsync(() -> atomicInt.incrementAndGet()); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> "a test string"); |
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cf2 = cf1.thenRunAsync(() -> atomicInt.incrementAndGet(), executor); |
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checkCompletedNormally(cf1, "a test string"); |
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checkCompletedNormally(cf2, null); |
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check(atomicInt.get() == (before + 1)); |
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|
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before = atomicInt.get(); |
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenRun(() -> atomicInt.incrementAndGet()); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenRunAsync(() -> atomicInt.incrementAndGet()); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = cf1.thenRunAsync(() -> atomicInt.incrementAndGet(), executor); |
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checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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check(atomicInt.get() == before); |
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} catch (Throwable t) { unexpected(t); } |
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|
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//---------------------------------------------------------------- |
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// thenCombineXXX tests |
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//---------------------------------------------------------------- |
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try { |
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CompletableFuture<Integer> cf3; |
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CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
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CompletableFuture<Integer> cf2 = supplyAsync(() -> 1); |
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cf3 = cf1.thenCombine(cf2, (x, y) -> x + y); |
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checkCompletedNormally(cf1, 1); |
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checkCompletedNormally(cf2, 1); |
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checkCompletedNormally(cf3, 2); |
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|
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cf1 = supplyAsync(() -> 1); |
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cf2 = supplyAsync(() -> 1); |
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cf3 = cf1.thenCombineAsync(cf2, (x, y) -> x + y); |
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checkCompletedNormally(cf1, 1); |
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checkCompletedNormally(cf2, 1); |
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checkCompletedNormally(cf3, 2); |
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|
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cf1 = supplyAsync(() -> 1); |
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cf2 = supplyAsync(() -> 1); |
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cf3 = cf1.thenCombineAsync(cf2, (x, y) -> x + y, executor); |
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checkCompletedNormally(cf1, 1); |
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checkCompletedNormally(cf2, 1); |
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checkCompletedNormally(cf3, 2); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = supplyAsync(() -> 1); |
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cf3 = cf1.thenCombine(cf2, (x, y) -> 0); |
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checkCompletedExceptionally(cf1); |
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checkCompletedNormally(cf2, 1); |
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checkCompletedExceptionally(cf3); |
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|
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cf1 = supplyAsync(() -> 1); |
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cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf3 = cf1.thenCombineAsync(cf2, (x, y) -> 0); |
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checkCompletedNormally(cf1, 1); |
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checkCompletedExceptionally(cf2); |
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checkCompletedExceptionally(cf3); |
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|
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cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
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cf3 = cf1.thenCombineAsync(cf2, (x, y) -> 0, executor); |
368 |
checkCompletedExceptionally(cf1); |
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checkCompletedExceptionally(cf2); |
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checkCompletedExceptionally(cf3); |
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} catch (Throwable t) { unexpected(t); } |
372 |
|
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//---------------------------------------------------------------- |
374 |
// thenAcceptBothXXX tests |
375 |
//---------------------------------------------------------------- |
376 |
try { |
377 |
CompletableFuture<Void> cf3; |
378 |
int before = atomicInt.get(); |
379 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
380 |
CompletableFuture<Integer> cf2 = supplyAsync(() -> 1); |
381 |
cf3 = cf1.thenAcceptBoth(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); }); |
382 |
checkCompletedNormally(cf1, 1); |
383 |
checkCompletedNormally(cf2, 1); |
384 |
checkCompletedNormally(cf3, null); |
385 |
check(atomicInt.get() == (before + 1)); |
386 |
|
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before = atomicInt.get(); |
388 |
cf1 = supplyAsync(() -> 1); |
389 |
cf2 = supplyAsync(() -> 1); |
390 |
cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); }); |
391 |
checkCompletedNormally(cf1, 1); |
392 |
checkCompletedNormally(cf2, 1); |
393 |
checkCompletedNormally(cf3, null); |
394 |
check(atomicInt.get() == (before + 1)); |
395 |
|
396 |
before = atomicInt.get(); |
397 |
cf1 = supplyAsync(() -> 1); |
398 |
cf2 = supplyAsync(() -> 1); |
399 |
cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); }, executor); |
400 |
checkCompletedNormally(cf1, 1); |
401 |
checkCompletedNormally(cf2, 1); |
402 |
checkCompletedNormally(cf3, null); |
403 |
check(atomicInt.get() == (before + 1)); |
404 |
|
405 |
before = atomicInt.get(); |
406 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
407 |
cf2 = supplyAsync(() -> 1); |
408 |
cf3 = cf1.thenAcceptBoth(cf2, (x, y) -> atomicInt.incrementAndGet()); |
409 |
checkCompletedExceptionally(cf1); |
410 |
checkCompletedNormally(cf2, 1); |
411 |
checkCompletedExceptionally(cf3); |
412 |
check(atomicInt.get() == before); |
413 |
|
414 |
cf1 = supplyAsync(() -> 1); |
415 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
416 |
cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> atomicInt.incrementAndGet()); |
417 |
checkCompletedNormally(cf1, 1); |
418 |
checkCompletedExceptionally(cf2); |
419 |
checkCompletedExceptionally(cf3); |
420 |
check(atomicInt.get() == before); |
421 |
|
422 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
423 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
424 |
cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> atomicInt.incrementAndGet(), executor); |
425 |
checkCompletedExceptionally(cf1); |
426 |
checkCompletedExceptionally(cf2); |
427 |
checkCompletedExceptionally(cf3); |
428 |
check(atomicInt.get() == before); |
429 |
} catch (Throwable t) { unexpected(t); } |
430 |
|
431 |
//---------------------------------------------------------------- |
432 |
// runAfterBothXXX tests |
433 |
//---------------------------------------------------------------- |
434 |
try { |
435 |
CompletableFuture<Void> cf3; |
436 |
int before = atomicInt.get(); |
437 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
438 |
CompletableFuture<Integer> cf2 = supplyAsync(() -> 1); |
439 |
cf3 = cf1.runAfterBoth(cf2, () -> { check(cf1.isDone()); check(cf2.isDone()); atomicInt.incrementAndGet(); }); |
440 |
checkCompletedNormally(cf1, 1); |
441 |
checkCompletedNormally(cf2, 1); |
442 |
checkCompletedNormally(cf3, null); |
443 |
check(atomicInt.get() == (before + 1)); |
444 |
|
445 |
before = atomicInt.get(); |
446 |
CompletableFuture<Integer> cfa = supplyAsync(() -> 1); |
447 |
CompletableFuture<Integer> cfb = supplyAsync(() -> 1); |
448 |
cf3 = cfa.runAfterBothAsync(cfb, () -> { check(cfa.isDone()); check(cfb.isDone()); atomicInt.incrementAndGet(); }); |
449 |
checkCompletedNormally(cfa, 1); |
450 |
checkCompletedNormally(cfb, 1); |
451 |
checkCompletedNormally(cf3, null); |
452 |
check(atomicInt.get() == (before + 1)); |
453 |
|
454 |
before = atomicInt.get(); |
455 |
CompletableFuture<Integer> cfx = supplyAsync(() -> 1); |
456 |
CompletableFuture<Integer> cfy = supplyAsync(() -> 1); |
457 |
cf3 = cfy.runAfterBothAsync(cfx, () -> { check(cfx.isDone()); check(cfy.isDone()); atomicInt.incrementAndGet(); }, executor); |
458 |
checkCompletedNormally(cfx, 1); |
459 |
checkCompletedNormally(cfy, 1); |
460 |
checkCompletedNormally(cf3, null); |
461 |
check(atomicInt.get() == (before + 1)); |
462 |
|
463 |
before = atomicInt.get(); |
464 |
CompletableFuture<Integer> cf4 = supplyAsync(() -> { throw new RuntimeException(); }); |
465 |
CompletableFuture<Integer> cf5 = supplyAsync(() -> 1); |
466 |
cf3 = cf5.runAfterBothAsync(cf4, () -> atomicInt.incrementAndGet(), executor); |
467 |
checkCompletedExceptionally(cf4); |
468 |
checkCompletedNormally(cf5, 1); |
469 |
checkCompletedExceptionally(cf3); |
470 |
check(atomicInt.get() == before); |
471 |
|
472 |
before = atomicInt.get(); |
473 |
cf4 = supplyAsync(() -> 1); |
474 |
cf5 = supplyAsync(() -> { throw new RuntimeException(); }); |
475 |
cf3 = cf5.runAfterBothAsync(cf4, () -> atomicInt.incrementAndGet()); |
476 |
checkCompletedNormally(cf4, 1); |
477 |
checkCompletedExceptionally(cf5); |
478 |
checkCompletedExceptionally(cf3); |
479 |
check(atomicInt.get() == before); |
480 |
|
481 |
before = atomicInt.get(); |
482 |
cf4 = supplyAsync(() -> { throw new RuntimeException(); }); |
483 |
cf5 = supplyAsync(() -> { throw new RuntimeException(); }); |
484 |
cf3 = cf5.runAfterBoth(cf4, () -> atomicInt.incrementAndGet()); |
485 |
checkCompletedExceptionally(cf4); |
486 |
checkCompletedExceptionally(cf5); |
487 |
checkCompletedExceptionally(cf3); |
488 |
check(atomicInt.get() == before); |
489 |
} catch (Throwable t) { unexpected(t); } |
490 |
|
491 |
//---------------------------------------------------------------- |
492 |
// applyToEitherXXX tests |
493 |
//---------------------------------------------------------------- |
494 |
try { |
495 |
CompletableFuture<Integer> cf3; |
496 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
497 |
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2); |
498 |
cf3 = cf1.applyToEither(cf2, x -> { check(x == 1 || x == 2); return x; }); |
499 |
checkCompletedNormally(cf3, new Object[] {1, 2}); |
500 |
check(cf1.isDone() || cf2.isDone()); |
501 |
|
502 |
cf1 = supplyAsync(() -> 1); |
503 |
cf2 = supplyAsync(() -> 2); |
504 |
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1 || x == 2); return x; }); |
505 |
checkCompletedNormally(cf3, new Object[] {1, 2}); |
506 |
check(cf1.isDone() || cf2.isDone()); |
507 |
|
508 |
cf1 = supplyAsync(() -> 1); |
509 |
cf2 = supplyAsync(() -> 2); |
510 |
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1 || x == 2); return x; }, executor); |
511 |
checkCompletedNormally(cf3, new Object[] {1, 2}); |
512 |
check(cf1.isDone() || cf2.isDone()); |
513 |
|
514 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
515 |
cf2 = supplyAsync(() -> 2); |
516 |
cf3 = cf1.applyToEither(cf2, x -> { check(x == 2); return x; }); |
517 |
try { check(cf3.join() == 2); } catch (CompletionException x) { pass(); } |
518 |
check(cf3.isDone()); |
519 |
check(cf1.isDone() || cf2.isDone()); |
520 |
|
521 |
cf1 = supplyAsync(() -> 1); |
522 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
523 |
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1); return x; }); |
524 |
try { check(cf3.join() == 1); } catch (CompletionException x) { pass(); } |
525 |
check(cf3.isDone()); |
526 |
check(cf1.isDone() || cf2.isDone()); |
527 |
|
528 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
529 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
530 |
cf3 = cf1.applyToEitherAsync(cf2, x -> { fail(); return x; }); |
531 |
checkCompletedExceptionally(cf3); |
532 |
check(cf1.isDone() || cf2.isDone()); |
533 |
|
534 |
final Phaser cf3Done = new Phaser(2); |
535 |
cf1 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 1; }); |
536 |
cf2 = supplyAsync(() -> 2); |
537 |
cf3 = cf1.applyToEither(cf2, x -> { check(x == 2); return x; }); |
538 |
checkCompletedNormally(cf3, 2); |
539 |
checkCompletedNormally(cf2, 2); |
540 |
check(!cf1.isDone()); |
541 |
cf3Done.arrive(); |
542 |
checkCompletedNormally(cf1, 1); |
543 |
checkCompletedNormally(cf3, 2); |
544 |
|
545 |
cf1 = supplyAsync(() -> 1); |
546 |
cf2 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 2; }); |
547 |
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1); return x; }); |
548 |
checkCompletedNormally(cf3, 1); |
549 |
checkCompletedNormally(cf1, 1); |
550 |
check(!cf2.isDone()); |
551 |
cf3Done.arrive(); |
552 |
checkCompletedNormally(cf2, 2); |
553 |
checkCompletedNormally(cf3, 1); |
554 |
} catch (Throwable t) { unexpected(t); } |
555 |
|
556 |
//---------------------------------------------------------------- |
557 |
// acceptEitherXXX tests |
558 |
//---------------------------------------------------------------- |
559 |
try { |
560 |
CompletableFuture<Void> cf3; |
561 |
int before = atomicInt.get(); |
562 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
563 |
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2); |
564 |
cf3 = cf1.acceptEither(cf2, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); }); |
565 |
checkCompletedNormally(cf3, null); |
566 |
check(cf1.isDone() || cf2.isDone()); |
567 |
check(atomicInt.get() == (before + 1)); |
568 |
|
569 |
before = atomicInt.get(); |
570 |
cf1 = supplyAsync(() -> 1); |
571 |
cf2 = supplyAsync(() -> 2); |
572 |
cf3 = cf1.acceptEitherAsync(cf2, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); }); |
573 |
checkCompletedNormally(cf3, null); |
574 |
check(cf1.isDone() || cf2.isDone()); |
575 |
check(atomicInt.get() == (before + 1)); |
576 |
|
577 |
before = atomicInt.get(); |
578 |
cf1 = supplyAsync(() -> 1); |
579 |
cf2 = supplyAsync(() -> 2); |
580 |
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); }, executor); |
581 |
checkCompletedNormally(cf3, null); |
582 |
check(cf1.isDone() || cf2.isDone()); |
583 |
check(atomicInt.get() == (before + 1)); |
584 |
|
585 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
586 |
cf2 = supplyAsync(() -> 2); |
587 |
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 2); }, executor); |
588 |
try { check(cf3.join() == null); } catch (CompletionException x) { pass(); } |
589 |
check(cf3.isDone()); |
590 |
check(cf1.isDone() || cf2.isDone()); |
591 |
|
592 |
cf1 = supplyAsync(() -> 1); |
593 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
594 |
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 1); }); |
595 |
try { check(cf3.join() == null); } catch (CompletionException x) { pass(); } |
596 |
check(cf3.isDone()); |
597 |
check(cf1.isDone() || cf2.isDone()); |
598 |
|
599 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
600 |
cf2 = supplyAsync(() -> { throw new RuntimeException(); }); |
601 |
cf3 = cf2.acceptEitherAsync(cf1, x -> { fail(); }); |
602 |
checkCompletedExceptionally(cf3); |
603 |
check(cf1.isDone() || cf2.isDone()); |
604 |
|
605 |
final Phaser cf3Done = new Phaser(2); |
606 |
cf1 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 1; }); |
607 |
cf2 = supplyAsync(() -> 2); |
608 |
cf3 = cf1.acceptEither(cf2, x -> { check(x == 2); }); |
609 |
checkCompletedNormally(cf3, null); |
610 |
checkCompletedNormally(cf2, 2); |
611 |
check(!cf1.isDone()); |
612 |
cf3Done.arrive(); |
613 |
checkCompletedNormally(cf1, 1); |
614 |
checkCompletedNormally(cf3, null); |
615 |
|
616 |
cf1 = supplyAsync(() -> 1); |
617 |
cf2 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 2; }); |
618 |
cf3 = cf1.acceptEitherAsync(cf2, x -> { check(x == 1); }); |
619 |
checkCompletedNormally(cf3, null); |
620 |
checkCompletedNormally(cf1, 1); |
621 |
check(!cf2.isDone()); |
622 |
cf3Done.arrive(); |
623 |
checkCompletedNormally(cf2, 2); |
624 |
checkCompletedNormally(cf3, null); |
625 |
} catch (Throwable t) { unexpected(t); } |
626 |
|
627 |
//---------------------------------------------------------------- |
628 |
// runAfterEitherXXX tests |
629 |
//---------------------------------------------------------------- |
630 |
try { |
631 |
CompletableFuture<Void> cf3; |
632 |
int before = atomicInt.get(); |
633 |
CompletableFuture<Void> cf1 = runAsync(() -> {}); |
634 |
CompletableFuture<Void> cf2 = runAsync(() -> {}); |
635 |
cf3 = cf1.runAfterEither(cf2, () -> atomicInt.incrementAndGet()); |
636 |
checkCompletedNormally(cf3, null); |
637 |
check(cf1.isDone() || cf2.isDone()); |
638 |
check(atomicInt.get() == (before + 1)); |
639 |
|
640 |
before = atomicInt.get(); |
641 |
cf1 = runAsync(() -> {}); |
642 |
cf2 = runAsync(() -> {}); |
643 |
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet()); |
644 |
checkCompletedNormally(cf3, null); |
645 |
check(cf1.isDone() || cf2.isDone()); |
646 |
check(atomicInt.get() == (before + 1)); |
647 |
|
648 |
before = atomicInt.get(); |
649 |
cf1 = runAsync(() -> {}); |
650 |
cf2 = runAsync(() -> {}); |
651 |
cf3 = cf2.runAfterEitherAsync(cf1, () -> atomicInt.incrementAndGet(), executor); |
652 |
checkCompletedNormally(cf3, null); |
653 |
check(cf1.isDone() || cf2.isDone()); |
654 |
check(atomicInt.get() == (before + 1)); |
655 |
|
656 |
before = atomicInt.get(); |
657 |
cf1 = runAsync(() -> { throw new RuntimeException(); }); |
658 |
cf2 = runAsync(() -> {}); |
659 |
cf3 = cf2.runAfterEither(cf1, () -> atomicInt.incrementAndGet()); |
660 |
try { |
661 |
check(cf3.join() == null); |
662 |
check(atomicInt.get() == (before + 1)); |
663 |
} catch (CompletionException x) { pass(); } |
664 |
check(cf3.isDone()); |
665 |
check(cf1.isDone() || cf2.isDone()); |
666 |
|
667 |
before = atomicInt.get(); |
668 |
cf1 = runAsync(() -> {}); |
669 |
cf2 = runAsync(() -> { throw new RuntimeException(); }); |
670 |
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet()); |
671 |
try { |
672 |
check(cf3.join() == null); |
673 |
check(atomicInt.get() == (before + 1)); |
674 |
} catch (CompletionException x) { pass(); } |
675 |
check(cf3.isDone()); |
676 |
check(cf1.isDone() || cf2.isDone()); |
677 |
|
678 |
before = atomicInt.get(); |
679 |
cf1 = runAsync(() -> { throw new RuntimeException(); }); |
680 |
cf2 = runAsync(() -> { throw new RuntimeException(); }); |
681 |
cf3 = cf2.runAfterEitherAsync(cf1, () -> atomicInt.incrementAndGet(), executor); |
682 |
checkCompletedExceptionally(cf3); |
683 |
check(cf1.isDone() || cf2.isDone()); |
684 |
check(atomicInt.get() == before); |
685 |
|
686 |
final Phaser cf3Done = new Phaser(2); |
687 |
before = atomicInt.get(); |
688 |
cf1 = runAsync(() -> cf3Done.arriveAndAwaitAdvance()); |
689 |
cf2 = runAsync(() -> {}); |
690 |
cf3 = cf1.runAfterEither(cf2, () -> atomicInt.incrementAndGet()); |
691 |
checkCompletedNormally(cf3, null); |
692 |
checkCompletedNormally(cf2, null); |
693 |
check(!cf1.isDone()); |
694 |
check(atomicInt.get() == (before + 1)); |
695 |
cf3Done.arrive(); |
696 |
checkCompletedNormally(cf1, null); |
697 |
checkCompletedNormally(cf3, null); |
698 |
|
699 |
before = atomicInt.get(); |
700 |
cf1 = runAsync(() -> {}); |
701 |
cf2 = runAsync(() -> cf3Done.arriveAndAwaitAdvance()); |
702 |
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet()); |
703 |
checkCompletedNormally(cf3, null); |
704 |
checkCompletedNormally(cf1, null); |
705 |
check(!cf2.isDone()); |
706 |
check(atomicInt.get() == (before + 1)); |
707 |
cf3Done.arrive(); |
708 |
checkCompletedNormally(cf2, null); |
709 |
checkCompletedNormally(cf3, null); |
710 |
} catch (Throwable t) { unexpected(t); } |
711 |
|
712 |
//---------------------------------------------------------------- |
713 |
// thenComposeXXX tests |
714 |
//---------------------------------------------------------------- |
715 |
try { |
716 |
CompletableFuture<Integer> cf2; |
717 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
718 |
cf2 = cf1.thenCompose(x -> { check(x == 1); return CompletableFuture.completedFuture(2); }); |
719 |
checkCompletedNormally(cf1, 1); |
720 |
checkCompletedNormally(cf2, 2); |
721 |
|
722 |
cf1 = supplyAsync(() -> 1); |
723 |
cf2 = cf1.thenComposeAsync(x -> { check(x == 1); return CompletableFuture.completedFuture(2); }); |
724 |
checkCompletedNormally(cf1, 1); |
725 |
checkCompletedNormally(cf2, 2); |
726 |
|
727 |
cf1 = supplyAsync(() -> 1); |
728 |
cf2 = cf1.thenComposeAsync(x -> { check(x == 1); return CompletableFuture.completedFuture(2); }, executor); |
729 |
checkCompletedNormally(cf1, 1); |
730 |
checkCompletedNormally(cf2, 2); |
731 |
|
732 |
int before = atomicInt.get(); |
733 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
734 |
cf2 = cf1.thenCompose(x -> { atomicInt.incrementAndGet(); return CompletableFuture.completedFuture(2); }); |
735 |
checkCompletedExceptionally(cf1); |
736 |
checkCompletedExceptionally(cf2); |
737 |
check(atomicInt.get() == before); |
738 |
|
739 |
cf1 = supplyAsync(() -> { throw new RuntimeException(); }); |
740 |
cf2 = cf1.thenComposeAsync(x -> { atomicInt.incrementAndGet(); return CompletableFuture.completedFuture(2); }); |
741 |
checkCompletedExceptionally(cf1); |
742 |
checkCompletedExceptionally(cf2); |
743 |
check(atomicInt.get() == before); |
744 |
|
745 |
cf1 = supplyAsync(() -> 1); |
746 |
cf2 = cf1.thenComposeAsync(x -> { throw new RuntimeException(); }, executor); |
747 |
checkCompletedNormally(cf1, 1); |
748 |
checkCompletedExceptionally(cf2); |
749 |
} catch (Throwable t) { unexpected(t); } |
750 |
|
751 |
//---------------------------------------------------------------- |
752 |
// anyOf tests |
753 |
//---------------------------------------------------------------- |
754 |
try { |
755 |
CompletableFuture<Object> cf3; |
756 |
for (int k=0; k < 10; k++){ |
757 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
758 |
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2); |
759 |
cf3 = CompletableFuture.anyOf(cf1, cf2); |
760 |
checkCompletedNormally(cf3, new Object[] {1, 2}); |
761 |
check(cf1.isDone() || cf2.isDone()); |
762 |
} |
763 |
} catch (Throwable t) { unexpected(t); } |
764 |
|
765 |
//---------------------------------------------------------------- |
766 |
// allOf tests |
767 |
//---------------------------------------------------------------- |
768 |
try { |
769 |
CompletableFuture<?> cf3; |
770 |
for (int k=0; k < 10; k++){ |
771 |
CompletableFuture<Integer>[] cfs = (CompletableFuture<Integer>[]) |
772 |
Array.newInstance(CompletableFuture.class, 10); |
773 |
for (int j=0; j < 10; j++) { |
774 |
final int v = j; |
775 |
cfs[j] = supplyAsync(() -> v); |
776 |
} |
777 |
cf3 = CompletableFuture.allOf(cfs); |
778 |
for (int j=0; j < 10; j++) |
779 |
checkCompletedNormally(cfs[j], j); |
780 |
checkCompletedNormally(cf3, null); |
781 |
} |
782 |
} catch (Throwable t) { unexpected(t); } |
783 |
|
784 |
//---------------------------------------------------------------- |
785 |
// exceptionally tests |
786 |
//---------------------------------------------------------------- |
787 |
try { |
788 |
CompletableFuture<Integer> cf2; |
789 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
790 |
cf2 = cf1.exceptionally(t -> { fail("function should never be called"); return 2;}); |
791 |
checkCompletedNormally(cf1, 1); |
792 |
checkCompletedNormally(cf2, 1); |
793 |
|
794 |
final RuntimeException t = new RuntimeException(); |
795 |
cf1 = supplyAsync(() -> { throw t; }); |
796 |
cf2 = cf1.exceptionally(x -> { check(x.getCause() == t); return 2;}); |
797 |
checkCompletedExceptionally(cf1); |
798 |
checkCompletedNormally(cf2, 2); |
799 |
} catch (Throwable t) { unexpected(t); } |
800 |
|
801 |
//---------------------------------------------------------------- |
802 |
// handle tests |
803 |
//---------------------------------------------------------------- |
804 |
try { |
805 |
CompletableFuture<Integer> cf2; |
806 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
807 |
cf2 = cf1.handle((x,t) -> x+1); |
808 |
checkCompletedNormally(cf1, 1); |
809 |
checkCompletedNormally(cf2, 2); |
810 |
|
811 |
final RuntimeException ex = new RuntimeException(); |
812 |
cf1 = supplyAsync(() -> { throw ex; }); |
813 |
cf2 = cf1.handle((x,t) -> { check(t.getCause() == ex); return 2;}); |
814 |
checkCompletedExceptionally(cf1); |
815 |
checkCompletedNormally(cf2, 2); |
816 |
|
817 |
cf1 = supplyAsync(() -> 1); |
818 |
cf2 = cf1.handleAsync((x,t) -> x+1); |
819 |
checkCompletedNormally(cf1, 1); |
820 |
checkCompletedNormally(cf2, 2); |
821 |
|
822 |
cf1 = supplyAsync(() -> { throw ex; }); |
823 |
cf2 = cf1.handleAsync((x,t) -> { check(t.getCause() == ex); return 2;}); |
824 |
checkCompletedExceptionally(cf1); |
825 |
checkCompletedNormally(cf2, 2); |
826 |
} catch (Throwable t) { unexpected(t); } |
827 |
|
828 |
//---------------------------------------------------------------- |
829 |
// whenComplete tests |
830 |
//---------------------------------------------------------------- |
831 |
try { |
832 |
AtomicInteger count = new AtomicInteger(); |
833 |
CompletableFuture<Integer> cf2; |
834 |
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1); |
835 |
cf2 = cf1.whenComplete((x,t) -> count.getAndIncrement()); |
836 |
checkCompletedNormally(cf1, 1); |
837 |
checkCompletedNormally(cf2, 1); |
838 |
check(count.get() == 1, "action count should be incremented"); |
839 |
|
840 |
final RuntimeException ex = new RuntimeException(); |
841 |
cf1 = supplyAsync(() -> { throw ex; }); |
842 |
cf2 = cf1.whenComplete((x,t) -> count.getAndIncrement()); |
843 |
checkCompletedExceptionally(cf1); |
844 |
checkCompletedExceptionally(cf2); |
845 |
check(count.get() == 2, "action count should be incremented"); |
846 |
|
847 |
cf1 = supplyAsync(() -> 1); |
848 |
cf2 = cf1.whenCompleteAsync((x,t) -> count.getAndIncrement()); |
849 |
checkCompletedNormally(cf1, 1); |
850 |
checkCompletedNormally(cf2, 1); |
851 |
check(count.get() == 3, "action count should be incremented"); |
852 |
|
853 |
cf1 = supplyAsync(() -> { throw ex; }); |
854 |
cf2 = cf1.whenCompleteAsync((x,t) -> count.getAndIncrement()); |
855 |
checkCompletedExceptionally(cf1); |
856 |
checkCompletedExceptionally(cf2); |
857 |
check(count.get() == 4, "action count should be incremented"); |
858 |
|
859 |
} catch (Throwable t) { unexpected(t); } |
860 |
|
861 |
} |
862 |
|
863 |
//--------------------- Infrastructure --------------------------- |
864 |
static volatile int passed = 0, failed = 0; |
865 |
static void pass() {passed++;} |
866 |
static void fail() {failed++; Thread.dumpStack();} |
867 |
static void fail(String msg) {System.out.println(msg); fail();} |
868 |
static void unexpected(Throwable t) {failed++; t.printStackTrace();} |
869 |
static void check(boolean cond) {if (cond) pass(); else fail();} |
870 |
static void check(boolean cond, String msg) {if (cond) pass(); else fail(msg);} |
871 |
static void equal(Object x, Object y) { |
872 |
if (x == null ? y == null : x.equals(y)) pass(); |
873 |
else fail(x + " not equal to " + y);} |
874 |
static void equalAnyOf(Object x, Object[] y) { |
875 |
if (x == null && y == null) { pass(); return; } |
876 |
for (Object z : y) { if (x.equals(z)) { pass(); return; } } |
877 |
StringBuilder sb = new StringBuilder(); |
878 |
for (Object o : y) |
879 |
sb.append(o).append(" "); |
880 |
fail(x + " not equal to one of [" + sb + "]");} |
881 |
public static void main(String[] args) throws Throwable { |
882 |
try {realMain(args);} catch (Throwable t) {unexpected(t);} |
883 |
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
884 |
if (failed > 0) throw new AssertionError("Some tests failed");} |
885 |
} |