886 lines
41 KiB
Java
886 lines
41 KiB
Java
/*
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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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* 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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* @test
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* @bug 8005696
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* @summary Basic tests for CompletableFuture
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* @library /test/lib
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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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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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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.test.lib.Utils;
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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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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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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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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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@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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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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static AtomicInteger atomicInt = new AtomicInteger(0);
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private static void test(ExecutorService executor) throws Throwable {
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Thread.currentThread().setName("mainThread");
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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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// 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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// 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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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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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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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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// 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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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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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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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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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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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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// 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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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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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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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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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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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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// 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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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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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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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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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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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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// 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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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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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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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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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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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);
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checkCompletedExceptionally(cf1);
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checkCompletedExceptionally(cf2);
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checkCompletedExceptionally(cf3);
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} catch (Throwable t) { unexpected(t); }
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//----------------------------------------------------------------
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// thenAcceptBothXXX tests
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//----------------------------------------------------------------
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try {
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CompletableFuture<Void> cf3;
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int before = atomicInt.get();
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CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
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CompletableFuture<Integer> cf2 = supplyAsync(() -> 1);
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cf3 = cf1.thenAcceptBoth(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); });
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checkCompletedNormally(cf1, 1);
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checkCompletedNormally(cf2, 1);
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checkCompletedNormally(cf3, null);
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check(atomicInt.get() == (before + 1));
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before = atomicInt.get();
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cf1 = supplyAsync(() -> 1);
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cf2 = supplyAsync(() -> 1);
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cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); });
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checkCompletedNormally(cf1, 1);
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checkCompletedNormally(cf2, 1);
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checkCompletedNormally(cf3, null);
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check(atomicInt.get() == (before + 1));
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before = atomicInt.get();
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cf1 = supplyAsync(() -> 1);
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cf2 = supplyAsync(() -> 1);
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cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> { check(x + y == 2); atomicInt.incrementAndGet(); }, executor);
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checkCompletedNormally(cf1, 1);
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checkCompletedNormally(cf2, 1);
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checkCompletedNormally(cf3, null);
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check(atomicInt.get() == (before + 1));
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before = atomicInt.get();
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cf1 = supplyAsync(() -> { throw new RuntimeException(); });
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cf2 = supplyAsync(() -> 1);
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cf3 = cf1.thenAcceptBoth(cf2, (x, y) -> atomicInt.incrementAndGet());
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checkCompletedExceptionally(cf1);
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checkCompletedNormally(cf2, 1);
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checkCompletedExceptionally(cf3);
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check(atomicInt.get() == before);
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cf1 = supplyAsync(() -> 1);
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cf2 = supplyAsync(() -> { throw new RuntimeException(); });
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cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> atomicInt.incrementAndGet());
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checkCompletedNormally(cf1, 1);
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checkCompletedExceptionally(cf2);
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checkCompletedExceptionally(cf3);
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check(atomicInt.get() == before);
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cf1 = supplyAsync(() -> { throw new RuntimeException(); });
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cf2 = supplyAsync(() -> { throw new RuntimeException(); });
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cf3 = cf1.thenAcceptBothAsync(cf2, (x, y) -> atomicInt.incrementAndGet(), executor);
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checkCompletedExceptionally(cf1);
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checkCompletedExceptionally(cf2);
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checkCompletedExceptionally(cf3);
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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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// runAfterBothXXX tests
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//----------------------------------------------------------------
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try {
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CompletableFuture<Void> cf3;
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int before = atomicInt.get();
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CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
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CompletableFuture<Integer> cf2 = supplyAsync(() -> 1);
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cf3 = cf1.runAfterBoth(cf2, () -> { check(cf1.isDone()); check(cf2.isDone()); atomicInt.incrementAndGet(); });
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checkCompletedNormally(cf1, 1);
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checkCompletedNormally(cf2, 1);
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checkCompletedNormally(cf3, null);
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check(atomicInt.get() == (before + 1));
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before = atomicInt.get();
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CompletableFuture<Integer> cfa = supplyAsync(() -> 1);
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|
CompletableFuture<Integer> cfb = supplyAsync(() -> 1);
|
|
cf3 = cfa.runAfterBothAsync(cfb, () -> { check(cfa.isDone()); check(cfb.isDone()); atomicInt.incrementAndGet(); });
|
|
checkCompletedNormally(cfa, 1);
|
|
checkCompletedNormally(cfb, 1);
|
|
checkCompletedNormally(cf3, null);
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
CompletableFuture<Integer> cfx = supplyAsync(() -> 1);
|
|
CompletableFuture<Integer> cfy = supplyAsync(() -> 1);
|
|
cf3 = cfy.runAfterBothAsync(cfx, () -> { check(cfx.isDone()); check(cfy.isDone()); atomicInt.incrementAndGet(); }, executor);
|
|
checkCompletedNormally(cfx, 1);
|
|
checkCompletedNormally(cfy, 1);
|
|
checkCompletedNormally(cf3, null);
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
CompletableFuture<Integer> cf4 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
CompletableFuture<Integer> cf5 = supplyAsync(() -> 1);
|
|
cf3 = cf5.runAfterBothAsync(cf4, () -> atomicInt.incrementAndGet(), executor);
|
|
checkCompletedExceptionally(cf4);
|
|
checkCompletedNormally(cf5, 1);
|
|
checkCompletedExceptionally(cf3);
|
|
check(atomicInt.get() == before);
|
|
|
|
before = atomicInt.get();
|
|
cf4 = supplyAsync(() -> 1);
|
|
cf5 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf5.runAfterBothAsync(cf4, () -> atomicInt.incrementAndGet());
|
|
checkCompletedNormally(cf4, 1);
|
|
checkCompletedExceptionally(cf5);
|
|
checkCompletedExceptionally(cf3);
|
|
check(atomicInt.get() == before);
|
|
|
|
before = atomicInt.get();
|
|
cf4 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf5 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf5.runAfterBoth(cf4, () -> atomicInt.incrementAndGet());
|
|
checkCompletedExceptionally(cf4);
|
|
checkCompletedExceptionally(cf5);
|
|
checkCompletedExceptionally(cf3);
|
|
check(atomicInt.get() == before);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// applyToEitherXXX tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Integer> cf3;
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.applyToEither(cf2, x -> { check(x == 1 || x == 2); return x; });
|
|
checkCompletedNormally(cf3, new Object[] {1, 2});
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1 || x == 2); return x; });
|
|
checkCompletedNormally(cf3, new Object[] {1, 2});
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1 || x == 2); return x; }, executor);
|
|
checkCompletedNormally(cf3, new Object[] {1, 2});
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.applyToEither(cf2, x -> { check(x == 2); return x; });
|
|
try { check(cf3.join() == 2); } catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1); return x; });
|
|
try { check(cf3.join() == 1); } catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf1.applyToEitherAsync(cf2, x -> { fail(); return x; });
|
|
checkCompletedExceptionally(cf3);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
final Phaser cf3Done = new Phaser(2);
|
|
cf1 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 1; });
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.applyToEither(cf2, x -> { check(x == 2); return x; });
|
|
checkCompletedNormally(cf3, 2);
|
|
checkCompletedNormally(cf2, 2);
|
|
check(!cf1.isDone());
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf3, 2);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 2; });
|
|
cf3 = cf1.applyToEitherAsync(cf2, x -> { check(x == 1); return x; });
|
|
checkCompletedNormally(cf3, 1);
|
|
checkCompletedNormally(cf1, 1);
|
|
check(!cf2.isDone());
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf2, 2);
|
|
checkCompletedNormally(cf3, 1);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// acceptEitherXXX tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Void> cf3;
|
|
int before = atomicInt.get();
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.acceptEither(cf2, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); });
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.acceptEitherAsync(cf2, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); });
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 1 || x == 2); atomicInt.incrementAndGet(); }, executor);
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 2); }, executor);
|
|
try { check(cf3.join() == null); } catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf2.acceptEitherAsync(cf1, x -> { check(x == 1); });
|
|
try { check(cf3.join() == null); } catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf2.acceptEitherAsync(cf1, x -> { fail(); });
|
|
checkCompletedExceptionally(cf3);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
final Phaser cf3Done = new Phaser(2);
|
|
cf1 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 1; });
|
|
cf2 = supplyAsync(() -> 2);
|
|
cf3 = cf1.acceptEither(cf2, x -> { check(x == 2); });
|
|
checkCompletedNormally(cf3, null);
|
|
checkCompletedNormally(cf2, 2);
|
|
check(!cf1.isDone());
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf3, null);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = supplyAsync(() -> { cf3Done.arriveAndAwaitAdvance(); return 2; });
|
|
cf3 = cf1.acceptEitherAsync(cf2, x -> { check(x == 1); });
|
|
checkCompletedNormally(cf3, null);
|
|
checkCompletedNormally(cf1, 1);
|
|
check(!cf2.isDone());
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf2, 2);
|
|
checkCompletedNormally(cf3, null);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// runAfterEitherXXX tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Void> cf3;
|
|
int before = atomicInt.get();
|
|
CompletableFuture<Void> cf1 = runAsync(() -> {});
|
|
CompletableFuture<Void> cf2 = runAsync(() -> {});
|
|
cf3 = cf1.runAfterEither(cf2, () -> atomicInt.incrementAndGet());
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> {});
|
|
cf2 = runAsync(() -> {});
|
|
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet());
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> {});
|
|
cf2 = runAsync(() -> {});
|
|
cf3 = cf2.runAfterEitherAsync(cf1, () -> atomicInt.incrementAndGet(), executor);
|
|
checkCompletedNormally(cf3, null);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = runAsync(() -> {});
|
|
cf3 = cf2.runAfterEither(cf1, () -> atomicInt.incrementAndGet());
|
|
try {
|
|
check(cf3.join() == null);
|
|
check(atomicInt.get() == (before + 1));
|
|
} catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> {});
|
|
cf2 = runAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet());
|
|
try {
|
|
check(cf3.join() == null);
|
|
check(atomicInt.get() == (before + 1));
|
|
} catch (CompletionException x) { pass(); }
|
|
check(cf3.isDone());
|
|
check(cf1.isDone() || cf2.isDone());
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = runAsync(() -> { throw new RuntimeException(); });
|
|
cf3 = cf2.runAfterEitherAsync(cf1, () -> atomicInt.incrementAndGet(), executor);
|
|
checkCompletedExceptionally(cf3);
|
|
check(cf1.isDone() || cf2.isDone());
|
|
check(atomicInt.get() == before);
|
|
|
|
final Phaser cf3Done = new Phaser(2);
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> cf3Done.arriveAndAwaitAdvance());
|
|
cf2 = runAsync(() -> {});
|
|
cf3 = cf1.runAfterEither(cf2, () -> atomicInt.incrementAndGet());
|
|
checkCompletedNormally(cf3, null);
|
|
checkCompletedNormally(cf2, null);
|
|
check(!cf1.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf1, null);
|
|
checkCompletedNormally(cf3, null);
|
|
|
|
before = atomicInt.get();
|
|
cf1 = runAsync(() -> {});
|
|
cf2 = runAsync(() -> cf3Done.arriveAndAwaitAdvance());
|
|
cf3 = cf1.runAfterEitherAsync(cf2, () -> atomicInt.incrementAndGet());
|
|
checkCompletedNormally(cf3, null);
|
|
checkCompletedNormally(cf1, null);
|
|
check(!cf2.isDone());
|
|
check(atomicInt.get() == (before + 1));
|
|
cf3Done.arrive();
|
|
checkCompletedNormally(cf2, null);
|
|
checkCompletedNormally(cf3, null);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// thenComposeXXX tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Integer> cf2;
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.thenCompose(x -> { check(x == 1); return CompletableFuture.completedFuture(2); });
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.thenComposeAsync(x -> { check(x == 1); return CompletableFuture.completedFuture(2); });
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.thenComposeAsync(x -> { check(x == 1); return CompletableFuture.completedFuture(2); }, executor);
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
int before = atomicInt.get();
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = cf1.thenCompose(x -> { atomicInt.incrementAndGet(); return CompletableFuture.completedFuture(2); });
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedExceptionally(cf2);
|
|
check(atomicInt.get() == before);
|
|
|
|
cf1 = supplyAsync(() -> { throw new RuntimeException(); });
|
|
cf2 = cf1.thenComposeAsync(x -> { atomicInt.incrementAndGet(); return CompletableFuture.completedFuture(2); });
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedExceptionally(cf2);
|
|
check(atomicInt.get() == before);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.thenComposeAsync(x -> { throw new RuntimeException(); }, executor);
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedExceptionally(cf2);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// anyOf tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Object> cf3;
|
|
for (int k=0; k < 10; k++){
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
CompletableFuture<Integer> cf2 = supplyAsync(() -> 2);
|
|
cf3 = CompletableFuture.anyOf(cf1, cf2);
|
|
checkCompletedNormally(cf3, new Object[] {1, 2});
|
|
check(cf1.isDone() || cf2.isDone());
|
|
}
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// allOf tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<?> cf3;
|
|
for (int k=0; k < 10; k++){
|
|
CompletableFuture<Integer>[] cfs = (CompletableFuture<Integer>[])
|
|
Array.newInstance(CompletableFuture.class, 10);
|
|
for (int j=0; j < 10; j++) {
|
|
final int v = j;
|
|
cfs[j] = supplyAsync(() -> v);
|
|
}
|
|
cf3 = CompletableFuture.allOf(cfs);
|
|
for (int j=0; j < 10; j++)
|
|
checkCompletedNormally(cfs[j], j);
|
|
checkCompletedNormally(cf3, null);
|
|
}
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// exceptionally tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Integer> cf2;
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.exceptionally(t -> { fail("function should never be called"); return 2;});
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 1);
|
|
|
|
final RuntimeException t = new RuntimeException();
|
|
cf1 = supplyAsync(() -> { throw t; });
|
|
cf2 = cf1.exceptionally(x -> { check(x.getCause() == t); return 2;});
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedNormally(cf2, 2);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// handle tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
CompletableFuture<Integer> cf2;
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.handle((x,t) -> x+1);
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
final RuntimeException ex = new RuntimeException();
|
|
cf1 = supplyAsync(() -> { throw ex; });
|
|
cf2 = cf1.handle((x,t) -> { check(t.getCause() == ex); return 2;});
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.handleAsync((x,t) -> x+1);
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 2);
|
|
|
|
cf1 = supplyAsync(() -> { throw ex; });
|
|
cf2 = cf1.handleAsync((x,t) -> { check(t.getCause() == ex); return 2;});
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedNormally(cf2, 2);
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
//----------------------------------------------------------------
|
|
// whenComplete tests
|
|
//----------------------------------------------------------------
|
|
try {
|
|
AtomicInteger count = new AtomicInteger();
|
|
CompletableFuture<Integer> cf2;
|
|
CompletableFuture<Integer> cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.whenComplete((x,t) -> count.getAndIncrement());
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 1);
|
|
check(count.get() == 1, "action count should be incremented");
|
|
|
|
final RuntimeException ex = new RuntimeException();
|
|
cf1 = supplyAsync(() -> { throw ex; });
|
|
cf2 = cf1.whenComplete((x,t) -> count.getAndIncrement());
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedExceptionally(cf2);
|
|
check(count.get() == 2, "action count should be incremented");
|
|
|
|
cf1 = supplyAsync(() -> 1);
|
|
cf2 = cf1.whenCompleteAsync((x,t) -> count.getAndIncrement());
|
|
checkCompletedNormally(cf1, 1);
|
|
checkCompletedNormally(cf2, 1);
|
|
check(count.get() == 3, "action count should be incremented");
|
|
|
|
cf1 = supplyAsync(() -> { throw ex; });
|
|
cf2 = cf1.whenCompleteAsync((x,t) -> count.getAndIncrement());
|
|
checkCompletedExceptionally(cf1);
|
|
checkCompletedExceptionally(cf2);
|
|
check(count.get() == 4, "action count should be incremented");
|
|
|
|
} catch (Throwable t) { unexpected(t); }
|
|
|
|
}
|
|
|
|
//--------------------- Infrastructure ---------------------------
|
|
static volatile int passed = 0, failed = 0;
|
|
static void pass() {passed++;}
|
|
static void fail() {failed++; Thread.dumpStack();}
|
|
static void fail(String msg) {System.out.println(msg); fail();}
|
|
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
|
|
static void check(boolean cond) {if (cond) pass(); else fail();}
|
|
static void check(boolean cond, String msg) {if (cond) pass(); else fail(msg);}
|
|
static void equal(Object x, Object y) {
|
|
if (x == null ? y == null : x.equals(y)) pass();
|
|
else fail(x + " not equal to " + y);}
|
|
static void equalAnyOf(Object x, Object[] y) {
|
|
if (x == null && y == null) { pass(); return; }
|
|
for (Object z : y) { if (x.equals(z)) { pass(); return; } }
|
|
StringBuilder sb = new StringBuilder();
|
|
for (Object o : y)
|
|
sb.append(o).append(" ");
|
|
fail(x + " not equal to one of [" + sb + "]");}
|
|
public static void main(String[] args) throws Throwable {
|
|
try {realMain(args);} catch (Throwable t) {unexpected(t);}
|
|
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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}
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