Java tutorial
/** * 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.aries.rsa.discovery.zookeeper.subscribe; import java.util.Collections; import junit.framework.TestCase; import org.apache.aries.rsa.discovery.zookeeper.subscribe.InterfaceMonitor; import org.apache.aries.rsa.discovery.zookeeper.util.Utils; import org.apache.zookeeper.KeeperException; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher.Event.EventType; import org.apache.zookeeper.Watcher.Event.KeeperState; import org.apache.zookeeper.ZooKeeper; import org.apache.zookeeper.data.Stat; import org.easymock.EasyMock; import org.easymock.IMocksControl; import org.osgi.service.remoteserviceadmin.EndpointListener; import static org.easymock.EasyMock.eq; import static org.easymock.EasyMock.expect; public class InterfaceMonitorTest extends TestCase { public void testInterfaceMonitor() throws KeeperException, InterruptedException { IMocksControl c = EasyMock.createControl(); ZooKeeper zk = c.createMock(ZooKeeper.class); expect(zk.getState()).andReturn(ZooKeeper.States.CONNECTED).anyTimes(); String scope = "(myProp=test)"; String interf = "es.schaaf.test"; String node = Utils.getZooKeeperPath(interf); EndpointListener endpointListener = c.createMock(EndpointListener.class); InterfaceMonitor im = new InterfaceMonitor(zk, interf, endpointListener, scope); zk.exists(eq(node), eq(im), eq(im), EasyMock.anyObject()); EasyMock.expectLastCall().once(); expect(zk.exists(eq(node), eq(false))).andReturn(new Stat()).anyTimes(); expect(zk.getChildren(eq(node), eq(false))).andReturn(Collections.<String>emptyList()).once(); expect(zk.getChildren(eq(node), eq(im))).andReturn(Collections.<String>emptyList()).once(); c.replay(); im.start(); // simulate a zk callback WatchedEvent we = new WatchedEvent(EventType.NodeCreated, KeeperState.SyncConnected, node); im.process(we); c.verify(); } }