opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/RoleChangeNotifierTest.java

   1 /*
   2  * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNotNull;
  13 import static org.junit.Assert.assertNull;
  14
  15 import akka.actor.ActorRef;
  16 import akka.testkit.TestActorRef;
  17 import akka.testkit.javadsl.TestKit;
  18 import org.junit.Test;
  19 import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
  20 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener;
  21 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListenerReply;
  22 import org.opendaylight.controller.cluster.notifications.RoleChangeNotification;
  23 import org.opendaylight.controller.cluster.notifications.RoleChangeNotifier;
  24 import org.opendaylight.controller.cluster.notifications.RoleChanged;
  25 import org.opendaylight.controller.cluster.raft.RaftState;
  26 import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
  27
  28 public class RoleChangeNotifierTest extends AbstractActorTest {
  29
  30     @Test
  31     public void testHandleRegisterRoleChangeListener() {
  32         new TestKit(getSystem()) {
  33             {
  34                 String memberId = "testHandleRegisterRoleChangeListener";
  35                 ActorRef listenerActor = getSystem().actorOf(MessageCollectorActor.props());
  36
  37                 TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(getSystem(),
  38                         RoleChangeNotifier.getProps(memberId), memberId);
  39
  40                 notifierTestActorRef.tell(new RegisterRoleChangeListener(), listenerActor);
  41
  42                 RegisterRoleChangeListenerReply reply = MessageCollectorActor.getFirstMatching(listenerActor,
  43                         RegisterRoleChangeListenerReply.class);
  44                 assertNotNull(reply);
  45
  46                 RoleChangeNotification notification = MessageCollectorActor.getFirstMatching(listenerActor,
  47                         RoleChangeNotification.class);
  48                 assertNull(notification);
  49             }
  50         };
  51     }
  52
  53     @Test
  54     public void testHandleRaftRoleChanged() {
  55         new TestKit(getSystem()) {
  56             {
  57                 String memberId = "testHandleRegisterRoleChangeListenerWithNotificationSet";
  58                 ActorRef listenerActor = getSystem().actorOf(MessageCollectorActor.props());
  59                 ActorRef shardActor = getTestActor();
  60
  61                 TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(getSystem(),
  62                         RoleChangeNotifier.getProps(memberId), memberId);
  63
  64                 notifierTestActorRef.tell(
  65                         new RoleChanged(memberId, RaftState.Candidate.name(), RaftState.Leader.name()), shardActor);
  66
  67                 // no notification should be sent as listener has not yet
  68                 // registered
  69                 assertNull(MessageCollectorActor.getFirstMatching(listenerActor, RoleChangeNotification.class));
  70
  71                 // listener registers after role has been changed, ensure we
  72                 // sent the latest role change after a reply
  73                 notifierTestActorRef.tell(new RegisterRoleChangeListener(), listenerActor);
  74
  75                 RegisterRoleChangeListenerReply reply = MessageCollectorActor.getFirstMatching(listenerActor,
  76                         RegisterRoleChangeListenerReply.class);
  77                 assertNotNull(reply);
  78
  79                 RoleChangeNotification notification = MessageCollectorActor.getFirstMatching(listenerActor,
  80                         RoleChangeNotification.class);
  81                 assertNotNull(notification);
  82                 assertEquals(RaftState.Candidate.name(), notification.getOldRole());
  83                 assertEquals(RaftState.Leader.name(), notification.getNewRole());
  84
  85             }
  86         };
  87
  88     }
  89
  90     @Test
  91     public void testHandleLeaderStateChanged() {
  92         new TestKit(getSystem()) {
  93             {
  94                 String actorId = "testHandleLeaderStateChanged";
  95                 TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(getSystem(),
  96                         RoleChangeNotifier.getProps(actorId), actorId);
  97
  98                 notifierTestActorRef.tell(new LeaderStateChanged("member1", "leader1", (short) 5), ActorRef.noSender());
  99
 100                 // listener registers after the sate has been changed, ensure we
 101                 // sent the latest state change after a reply
 102                 notifierTestActorRef.tell(new RegisterRoleChangeListener(), getRef());
 103
 104                 expectMsgClass(RegisterRoleChangeListenerReply.class);
 105
 106                 LeaderStateChanged leaderStateChanged = expectMsgClass(LeaderStateChanged.class);
 107                 assertEquals("getMemberId", "member1", leaderStateChanged.getMemberId());
 108                 assertEquals("getLeaderId", "leader1", leaderStateChanged.getLeaderId());
 109                 assertEquals("getLeaderPayloadVersion", 5, leaderStateChanged.getLeaderPayloadVersion());
 110
 111                 notifierTestActorRef.tell(new LeaderStateChanged("member1", "leader2", (short) 6), ActorRef.noSender());
 112
 113                 leaderStateChanged = expectMsgClass(LeaderStateChanged.class);
 114                 assertEquals("getMemberId", "member1", leaderStateChanged.getMemberId());
 115                 assertEquals("getLeaderId", "leader2", leaderStateChanged.getLeaderId());
 116                 assertEquals("getLeaderPayloadVersion", 6, leaderStateChanged.getLeaderPayloadVersion());
 117             }
 118         };
 119     }
 120 }