| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.net; |
| |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import io.netty.channel.embedded.EmbeddedChannel; |
| import org.apache.cassandra.utils.concurrent.AbstractTestAsyncPromise; |
| import org.apache.cassandra.utils.concurrent.Promise; |
| |
| public class AsyncChannelPromiseTest extends AbstractTestAsyncPromise |
| { |
| @After |
| public void shutdown() |
| { |
| exec.shutdownNow(); |
| } |
| |
| private static List<Supplier<Promise<Void>>> suppliers(AtomicInteger listeners, boolean includedUncancellable) |
| { |
| List<Supplier<Promise<Void>>> cancellable = ImmutableList.of( |
| () -> new AsyncChannelPromise(new EmbeddedChannel()), |
| () -> AsyncChannelPromise.withListener(new EmbeddedChannel(), f -> listeners.incrementAndGet()) |
| ); |
| |
| if (!includedUncancellable) |
| return cancellable; |
| |
| return ImmutableList.<Supplier<Promise<Void>>>builder() |
| .addAll(cancellable) |
| .addAll(cancellable.stream().map(s -> (Supplier<Promise<Void>>) () -> cancelSuccess(s.get())).collect(Collectors.toList())) |
| .build(); |
| } |
| |
| @Test |
| public void testSuccess() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Void>>> suppliers = suppliers(initialListeners, true); |
| for (boolean tryOrSet : new boolean[]{ false, true }) |
| for (Supplier<Promise<Void>> supplier : suppliers) |
| testOneSuccess(supplier.get(), tryOrSet, null, null); |
| Assert.assertEquals(2 * 2, initialListeners.get()); |
| } |
| |
| @Test |
| public void testFailure() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Void>>> suppliers = suppliers(initialListeners, true); |
| for (boolean tryOrSet : new boolean[]{ false, true }) |
| for (Throwable v : new Throwable[] { null, new NullPointerException() }) |
| for (Supplier<Promise<Void>> supplier : suppliers) |
| testOneFailure(supplier.get(), tryOrSet, v, null); |
| Assert.assertEquals(2 * 2 * 2, initialListeners.get()); |
| } |
| |
| |
| @Test |
| public void testCancellation() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Void>>> suppliers = suppliers(initialListeners, false); |
| for (boolean interruptIfRunning : new boolean[] { true, false }) |
| for (Supplier<Promise<Void>> supplier : suppliers) |
| testOneCancellation(supplier.get(), interruptIfRunning, null); |
| Assert.assertEquals(2, initialListeners.get()); |
| } |
| |
| |
| @Test |
| public void testTimeout() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Void>>> suppliers = suppliers(initialListeners, true); |
| for (Supplier<Promise<Void>> supplier : suppliers) |
| testOneTimeout(supplier.get()); |
| Assert.assertEquals(0, initialListeners.get()); |
| } |
| |
| } |