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

   1 package org.opendaylight.controller.cluster.datastore;
   2
   3 import akka.actor.ActorRef;
   4 import akka.actor.DeadLetter;
   5 import akka.actor.Props;
   6 import akka.testkit.JavaTestKit;
   7 import org.junit.Assert;
   8 import org.junit.Test;
   9 import org.mockito.Mockito;
  10 import org.opendaylight.controller.cluster.datastore.messages.DataChanged;
  11 import org.opendaylight.controller.cluster.datastore.messages.DataChangedReply;
  12 import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
  13 import org.opendaylight.controller.md.cluster.datastore.model.CompositeModel;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
  16
  17 public class DataChangeListenerTest extends AbstractActorTest {
  18
  19     @SuppressWarnings({ "rawtypes", "unchecked" })
  20     @Test
  21     public void testDataChangedWhenNotificationsAreEnabled(){
  22         new JavaTestKit(getSystem()) {{
  23             final AsyncDataChangeEvent mockChangeEvent = Mockito.mock(AsyncDataChangeEvent.class);
  24             final AsyncDataChangeListener mockListener = Mockito.mock(AsyncDataChangeListener.class);
  25             final Props props = DataChangeListener.props(mockListener);
  26             final ActorRef subject = getSystem().actorOf(props, "testDataChangedNotificationsEnabled");
  27
  28             // Let the DataChangeListener know that notifications should be enabled
  29             subject.tell(new EnableNotification(true), getRef());
  30
  31             subject.tell(new DataChanged(CompositeModel.createTestContext(), mockChangeEvent),
  32                     getRef());
  33
  34             expectMsgClass(DataChangedReply.class);
  35
  36             Mockito.verify(mockListener).onDataChanged(mockChangeEvent);
  37         }};
  38     }
  39
  40     @SuppressWarnings({ "rawtypes", "unchecked" })
  41     @Test
  42     public void testDataChangedWhenNotificationsAreDisabled(){
  43         new JavaTestKit(getSystem()) {{
  44             final AsyncDataChangeEvent mockChangeEvent = Mockito.mock(AsyncDataChangeEvent.class);
  45             final AsyncDataChangeListener mockListener = Mockito.mock(AsyncDataChangeListener.class);
  46             final Props props = DataChangeListener.props(mockListener);
  47             final ActorRef subject =
  48                 getSystem().actorOf(props, "testDataChangedNotificationsDisabled");
  49
  50             subject.tell(new DataChanged(CompositeModel.createTestContext(), mockChangeEvent),
  51                     getRef());
  52
  53             new Within(duration("1 seconds")) {
  54                 @Override
  55                 protected void run() {
  56                     expectNoMsg();
  57
  58                     Mockito.verify(mockListener, Mockito.never()).onDataChanged(
  59                             Mockito.any(AsyncDataChangeEvent.class));
  60                 }
  61             };
  62         }};
  63     }
  64
  65     @SuppressWarnings({ "rawtypes", "unchecked" })
  66     @Test
  67     public void testDataChangedWithNoSender(){
  68         new JavaTestKit(getSystem()) {{
  69             final AsyncDataChangeEvent mockChangeEvent = Mockito.mock(AsyncDataChangeEvent.class);
  70             final AsyncDataChangeListener mockListener = Mockito.mock(AsyncDataChangeListener.class);
  71             final Props props = DataChangeListener.props(mockListener);
  72             final ActorRef subject = getSystem().actorOf(props, "testDataChangedWithNoSender");
  73
  74             getSystem().eventStream().subscribe(getRef(), DeadLetter.class);
  75
  76             subject.tell(new DataChanged(CompositeModel.createTestContext(), mockChangeEvent),
  77                     ActorRef.noSender());
  78
  79             // Make sure no DataChangedReply is sent to DeadLetters.
  80             while(true) {
  81                 DeadLetter deadLetter;
  82                 try {
  83                     deadLetter = expectMsgClass(duration("1 seconds"), DeadLetter.class);
  84                 } catch (AssertionError e) {
  85                     // Timed out - got no DeadLetter - this is good
  86                     break;
  87                 }
  88
  89                 // We may get DeadLetters for other messages we don't care about.
  90                 Assert.assertFalse("Unexpected DataChangedReply",
  91                         deadLetter.message() instanceof DataChangedReply);
  92             }
  93         }};
  94     }
  95 }