package org.apache.cassandra.concurrent; /* * * 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. * */ import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.TimeUnit; import org.junit.Test; import org.apache.cassandra.utils.WrappedRunnable; public class DebuggableThreadPoolExecutorTest { @Test public void testSerialization() throws InterruptedException { LinkedBlockingQueue<Runnable> q = new LinkedBlockingQueue<Runnable>(1); DebuggableThreadPoolExecutor executor = new DebuggableThreadPoolExecutor(1, Integer.MAX_VALUE, TimeUnit.MILLISECONDS, q, new NamedThreadFactory("TEST")); WrappedRunnable runnable = new WrappedRunnable() { public void runMayThrow() throws InterruptedException { Thread.sleep(50); } }; long start = System.nanoTime(); for (int i = 0; i < 10; i++) { executor.execute(runnable); } assert q.size() > 0 : q.size(); while (executor.getCompletedTaskCount() < 10) continue; long delta = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start); assert delta >= 9 * 50 : delta; } }