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
  12 import static org.junit.Assert.assertEquals;
  13 import static org.junit.Assert.assertNotNull;
  14 import static org.junit.Assert.assertNull;
  15 import akka.actor.ActorRef;
  16 import akka.actor.Props;
  17 import akka.testkit.JavaTestKit;
  18 import akka.testkit.TestActorRef;
  19 import org.junit.Test;
  20 import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
  21 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener;
  22 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListenerReply;
  23 import org.opendaylight.controller.cluster.notifications.RoleChangeNotification;
  24 import org.opendaylight.controller.cluster.notifications.RoleChangeNotifier;
  25 import org.opendaylight.controller.cluster.notifications.RoleChanged;
  26 import org.opendaylight.controller.cluster.raft.RaftState;
  27 import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
  28
  29 public class RoleChangeNotifierTest extends AbstractActorTest  {
  30
  31     @Test
  32     public void testHandleRegisterRoleChangeListener() throws Exception {
  33         new JavaTestKit(getSystem()) {{
  34             String memberId = "testHandleRegisterRoleChangeListener";
  35             ActorRef listenerActor =  getSystem().actorOf(Props.create(MessageCollectorActor.class));
  36
  37             TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(
  38                 getSystem(), RoleChangeNotifier.getProps(memberId), memberId);
  39
  40             notifierTestActorRef.tell(new RegisterRoleChangeListener(), listenerActor);
  41
  42             RegisterRoleChangeListenerReply reply =
  43                 MessageCollectorActor.getFirstMatching(listenerActor, RegisterRoleChangeListenerReply.class);
  44             assertNotNull(reply);
  45
  46             RoleChangeNotification notification =
  47                 MessageCollectorActor.getFirstMatching(listenerActor, RoleChangeNotification.class);
  48             assertNull(notification);
  49         }};
  50
  51     }
  52
  53     @Test
  54     public void testHandleRaftRoleChanged() throws Exception {
  55         new JavaTestKit(getSystem()) {{
  56             String memberId = "testHandleRegisterRoleChangeListenerWithNotificationSet";
  57             ActorRef listenerActor =  getSystem().actorOf(Props.create(MessageCollectorActor.class));
  58             ActorRef shardActor =  getTestActor();
  59
  60             TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(
  61                 getSystem(), RoleChangeNotifier.getProps(memberId), memberId);
  62
  63             notifierTestActorRef.tell(new RoleChanged(memberId, RaftState.Candidate.name(), RaftState.Leader.name()), shardActor);
  64
  65             // no notification should be sent as listener has not yet registered
  66             assertNull(MessageCollectorActor.getFirstMatching(listenerActor, RoleChangeNotification.class));
  67
  68             // listener registers after role has been changed, ensure we sent the latest role change after a reply
  69             notifierTestActorRef.tell(new RegisterRoleChangeListener(), listenerActor);
  70
  71             RegisterRoleChangeListenerReply reply =
  72                 MessageCollectorActor.getFirstMatching(listenerActor, RegisterRoleChangeListenerReply.class);
  73             assertNotNull(reply);
  74
  75             RoleChangeNotification notification =
  76                 MessageCollectorActor.getFirstMatching(listenerActor, RoleChangeNotification.class);
  77             assertNotNull(notification);
  78             assertEquals(RaftState.Candidate.name(), notification.getOldRole());
  79             assertEquals(RaftState.Leader.name(), notification.getNewRole());
  80
  81         }};
  82
  83     }
  84
  85     @Test
  86     public void testHandleLeaderStateChanged() throws Exception {
  87         new JavaTestKit(getSystem()) {{
  88             String actorId = "testHandleLeaderStateChanged";
  89             TestActorRef<RoleChangeNotifier> notifierTestActorRef = TestActorRef.create(
  90                 getSystem(), RoleChangeNotifier.getProps(actorId), actorId);
  91
  92             notifierTestActorRef.tell(new LeaderStateChanged("member1", "leader1", (short)5), ActorRef.noSender());
  93
  94             // listener registers after the sate has been changed, ensure we sent the latest state change after a reply
  95             notifierTestActorRef.tell(new RegisterRoleChangeListener(), getRef());
  96
  97             expectMsgClass(RegisterRoleChangeListenerReply.class);
  98
  99             LeaderStateChanged leaderStateChanged = expectMsgClass(LeaderStateChanged.class);
 100             assertEquals("getMemberId", "member1", leaderStateChanged.getMemberId());
 101             assertEquals("getLeaderId", "leader1", leaderStateChanged.getLeaderId());
 102             assertEquals("getLeaderPayloadVersion", 5, leaderStateChanged.getLeaderPayloadVersion());
 103
 104             notifierTestActorRef.tell(new LeaderStateChanged("member1", "leader2", (short)6), ActorRef.noSender());
 105
 106             leaderStateChanged = expectMsgClass(LeaderStateChanged.class);
 107             assertEquals("getMemberId", "member1", leaderStateChanged.getMemberId());
 108             assertEquals("getLeaderId", "leader2", leaderStateChanged.getLeaderId());
 109             assertEquals("getLeaderPayloadVersion", 6, leaderStateChanged.getLeaderPayloadVersion());
 110         }};
 111     }
 112 }
 113
 114