| /** |
| * 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.pulsar.zookeeper; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertFalse; |
| import static org.testng.Assert.assertTrue; |
| |
| import org.apache.zookeeper.KeeperException.Code; |
| import org.apache.zookeeper.MockZooKeeper; |
| import org.apache.zookeeper.WatchedEvent; |
| import org.apache.zookeeper.Watcher.Event.EventType; |
| import org.apache.zookeeper.Watcher.Event.KeeperState; |
| import org.testng.annotations.AfterMethod; |
| import org.testng.annotations.BeforeMethod; |
| import org.testng.annotations.Test; |
| |
| public class ZooKeeperSessionWatcherTest { |
| |
| private class MockShutdownService implements ZooKeeperSessionWatcher.ShutdownService { |
| private int exitCode = 0; |
| |
| @Override |
| public void shutdown(int exitCode) { |
| this.exitCode = exitCode; |
| } |
| |
| public int getExitCode() { |
| return exitCode; |
| } |
| } |
| |
| private MockZooKeeper zkClient; |
| private MockShutdownService shutdownService; |
| private ZooKeeperSessionWatcher sessionWatcher; |
| |
| @BeforeMethod |
| void setup() { |
| zkClient = MockZooKeeper.newInstance(); |
| shutdownService = new MockShutdownService(); |
| sessionWatcher = new ZooKeeperSessionWatcher(zkClient, 1000, new ZookeeperSessionExpiredHandler() { |
| |
| private ZooKeeperSessionWatcher watcher; |
| @Override |
| public void onSessionExpired() { |
| watcher.close(); |
| shutdownService.shutdown(-1); |
| } |
| |
| @Override |
| public void setWatcher(ZooKeeperSessionWatcher watcher) { |
| this.watcher = watcher; |
| } |
| }); |
| } |
| |
| @AfterMethod(alwaysRun = true) |
| void teardown() throws Exception { |
| sessionWatcher.close(); |
| zkClient.shutdown(); |
| } |
| |
| @Test |
| public void testProcess1() { |
| WatchedEvent event = new WatchedEvent(EventType.None, KeeperState.Expired, null); |
| sessionWatcher.process(event); |
| assertTrue(sessionWatcher.isShutdownStarted()); |
| assertEquals(shutdownService.getExitCode(), -1); |
| } |
| |
| @Test |
| public void testProcess2() { |
| WatchedEvent event = new WatchedEvent(EventType.None, KeeperState.Disconnected, null); |
| sessionWatcher.process(event); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| @Test |
| public void testProcess3() { |
| WatchedEvent event = new WatchedEvent(EventType.NodeCreated, KeeperState.Expired, null); |
| sessionWatcher.process(event); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| @Test |
| public void testProcessResultConnectionLoss() { |
| sessionWatcher.processResult(Code.CONNECTIONLOSS.intValue(), null, null, null); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.Disconnected); |
| } |
| |
| @Test |
| public void testProcessResultSessionExpired() { |
| sessionWatcher.processResult(Code.SESSIONEXPIRED.intValue(), null, null, null); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.Expired); |
| } |
| |
| @Test |
| public void testProcessResultOk() { |
| sessionWatcher.processResult(Code.OK.intValue(), null, null, null); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.SyncConnected); |
| } |
| |
| @Test |
| public void testProcessResultNoNode() { |
| sessionWatcher.processResult(Code.NONODE.intValue(), null, null, null); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.SyncConnected); |
| } |
| |
| @Test |
| void testRun1() throws Exception { |
| ZooKeeperSessionWatcher sessionWatcherZkNull = new ZooKeeperSessionWatcher(null, 1000, |
| new ZookeeperSessionExpiredHandler() { |
| private ZooKeeperSessionWatcher watcher; |
| @Override |
| public void onSessionExpired() { |
| watcher.close(); |
| shutdownService.shutdown(-1); |
| } |
| |
| @Override |
| public void setWatcher(ZooKeeperSessionWatcher watcher) { |
| this.watcher = watcher; |
| } |
| }); |
| sessionWatcherZkNull.run(); |
| assertFalse(sessionWatcherZkNull.isShutdownStarted()); |
| assertEquals(sessionWatcherZkNull.getKeeperState(), KeeperState.Disconnected); |
| assertEquals(shutdownService.getExitCode(), 0); |
| sessionWatcherZkNull.close(); |
| } |
| |
| @Test |
| void testRun2() throws Exception { |
| ZooKeeperSessionWatcher sessionWatcherZkNull = new ZooKeeperSessionWatcher(null, 0, |
| new ZookeeperSessionExpiredHandler() { |
| |
| private ZooKeeperSessionWatcher watcher; |
| @Override |
| public void onSessionExpired() { |
| watcher.close(); |
| shutdownService.shutdown(-1); |
| } |
| |
| @Override |
| public void setWatcher(ZooKeeperSessionWatcher watcher) { |
| this.watcher = watcher; |
| } |
| }); |
| sessionWatcherZkNull.run(); |
| assertTrue(sessionWatcherZkNull.isShutdownStarted()); |
| assertEquals(sessionWatcherZkNull.getKeeperState(), KeeperState.Disconnected); |
| assertEquals(shutdownService.getExitCode(), -1); |
| sessionWatcherZkNull.close(); |
| } |
| |
| @Test |
| public void testRun3() throws Exception { |
| zkClient.shutdown(); |
| sessionWatcher.run(); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.Disconnected); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| @Test |
| public void testRun4() throws Exception { |
| sessionWatcher.run(); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.SyncConnected); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| @Test |
| public void testRun5() throws Exception { |
| zkClient.create("/", new byte[0], null, null); |
| sessionWatcher.run(); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.SyncConnected); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| @Test |
| public void testRun6() throws Exception { |
| sessionWatcher.run(); |
| assertFalse(sessionWatcher.isShutdownStarted()); |
| assertEquals(sessionWatcher.getKeeperState(), KeeperState.SyncConnected); |
| assertEquals(shutdownService.getExitCode(), 0); |
| } |
| |
| } |