| /* |
| * 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.cloudstack.mom.inmemory; |
| |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| |
| import java.util.UUID; |
| |
| import org.apache.cloudstack.framework.events.Event; |
| import org.apache.cloudstack.framework.events.EventBusException; |
| import org.apache.cloudstack.framework.events.EventSubscriber; |
| import org.apache.cloudstack.framework.events.EventTopic; |
| import org.junit.Test; |
| |
| import com.cloud.utils.UuidUtils; |
| |
| public class InMemoryEventBusTest { |
| |
| @Test |
| public void testConfigure() throws Exception { |
| String name = "test001"; |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| boolean success = bus.configure(name, null); |
| |
| assertTrue(success); |
| assertTrue(name.equals(bus.getName())); |
| } |
| |
| @Test |
| public void testSubscribe() throws Exception { |
| EventTopic topic = mock(EventTopic.class); |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| |
| UUID uuid = bus.subscribe(topic, subscriber); |
| assertNotNull(uuid); |
| |
| String uuidStr = uuid.toString(); |
| assertTrue(UuidUtils.validateUUID(uuidStr)); |
| assertTrue(bus.totalSubscribers() == 1); |
| |
| bus.unsubscribe(uuid, subscriber); |
| assertTrue(bus.totalSubscribers() == 0); |
| } |
| |
| @Test(expected = EventBusException.class) |
| public void testSubscribeFailTopic() throws Exception { |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| |
| bus.subscribe(null, subscriber); |
| } |
| |
| @Test(expected = EventBusException.class) |
| public void testSubscribeFailSubscriber() throws Exception { |
| EventTopic topic = mock(EventTopic.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| |
| bus.subscribe(topic, null); |
| } |
| |
| @Test |
| public void testUnsubscribe() throws Exception { |
| EventTopic topic = mock(EventTopic.class); |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| |
| UUID uuid = bus.subscribe(topic, subscriber); |
| assertNotNull(uuid); |
| |
| String uuidStr = uuid.toString(); |
| |
| assertTrue(UuidUtils.validateUUID(uuidStr)); |
| assertTrue(bus.totalSubscribers() == 1); |
| // |
| bus.unsubscribe(uuid, subscriber); |
| assertTrue(bus.totalSubscribers() == 0); |
| } |
| |
| @Test(expected = EventBusException.class) |
| public void testUnsubscribeFailEmpty() throws Exception { |
| UUID uuid = UUID.randomUUID(); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| bus.unsubscribe(uuid, null); |
| } |
| |
| @Test(expected = EventBusException.class) |
| public void testUnsubscribeFailNull() throws Exception { |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| bus.unsubscribe(null, null); |
| } |
| |
| @Test(expected = EventBusException.class) |
| public void testUnsubscribeFailWrongUUID() throws Exception { |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| UUID uuid = UUID.randomUUID(); |
| |
| bus.unsubscribe(uuid, subscriber); |
| } |
| |
| @Test |
| public void testPublish() throws Exception { |
| EventTopic topic = mock(EventTopic.class); |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| Event event = mock(Event.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| |
| UUID uuid = bus.subscribe(topic, subscriber); |
| assertNotNull(uuid); |
| |
| String uuidStr = uuid.toString(); |
| assertTrue(UuidUtils.validateUUID(uuidStr)); |
| assertTrue(bus.totalSubscribers() == 1); |
| |
| bus.publish(event); |
| |
| verify(subscriber, times(1)).onEvent(event); |
| |
| bus.unsubscribe(uuid, subscriber); |
| assertTrue(bus.totalSubscribers() == 0); |
| } |
| |
| @Test |
| public void testPublishEmpty() throws Exception { |
| EventSubscriber subscriber = mock(EventSubscriber.class); |
| Event event = mock(Event.class); |
| |
| InMemoryEventBus bus = new InMemoryEventBus(); |
| bus.publish(event); |
| |
| verify(subscriber, times(0)).onEvent(event); |
| } |
| } |