+++ /dev/null
-/*
- * Copyright 2017-present Open Networking Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package io.atomix.utils.concurrent;
-
-import org.junit.Test;
-
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-/**
- * Ordered completable future test.
- */
-public class OrderedFutureTest {
-
- /**
- * Tests ordered completion of future callbacks.
- */
- @Test
- public void testOrderedCompletion() throws Throwable {
- CompletableFuture<String> future = new OrderedFuture<>();
- AtomicInteger order = new AtomicInteger();
- future.whenComplete((r, e) -> assertEquals(1, order.incrementAndGet()));
- future.whenComplete((r, e) -> assertEquals(2, order.incrementAndGet()));
- future.handle((r, e) -> {
- assertEquals(3, order.incrementAndGet());
- assertEquals("foo", r);
- return "bar";
- });
- future.thenRun(() -> assertEquals(3, order.incrementAndGet()));
- future.thenAccept(r -> {
- assertEquals(5, order.incrementAndGet());
- assertEquals("foo", r);
- });
- future.thenApply(r -> {
- assertEquals(6, order.incrementAndGet());
- assertEquals("foo", r);
- return "bar";
- });
- future.whenComplete((r, e) -> {
- assertEquals(7, order.incrementAndGet());
- assertEquals("foo", r);
- });
- future.complete("foo");
- }
-
- /**
- * Tests ordered failure of future callbacks.
- */
- public void testOrderedFailure() throws Throwable {
- CompletableFuture<String> future = new OrderedFuture<>();
- AtomicInteger order = new AtomicInteger();
- future.whenComplete((r, e) -> assertEquals(1, order.incrementAndGet()));
- future.whenComplete((r, e) -> assertEquals(2, order.incrementAndGet()));
- future.handle((r, e) -> {
- assertEquals(3, order.incrementAndGet());
- return "bar";
- });
- future.thenRun(() -> fail());
- future.thenAccept(r -> fail());
- future.exceptionally(e -> {
- assertEquals(3, order.incrementAndGet());
- return "bar";
- });
- future.completeExceptionally(new RuntimeException("foo"));
- }
-
- /**
- * Tests calling callbacks that are added after completion.
- */
- public void testAfterComplete() throws Throwable {
- CompletableFuture<String> future = new OrderedFuture<>();
- future.whenComplete((result, error) -> assertEquals("foo", result));
- future.complete("foo");
- AtomicInteger count = new AtomicInteger();
- future.whenComplete((result, error) -> {
- assertEquals("foo", result);
- assertEquals(1, count.incrementAndGet());
- });
- future.thenAccept(result -> {
- assertEquals("foo", result);
- assertEquals(2, count.incrementAndGet());
- });
- assertEquals(2, count.get());
- }
-}