//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldUseLastKnownOnlineClusterMemberAndSetTimeoutForCatchup() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldUseLastKnownOnlineClusterMemberAndSetTimeoutForCatchup()
{
// Given
LearnerState state = LearnerState.Learner;
LearnerContext ctx = mock(typeof(LearnerContext));
MessageHolder outgoing = mock(typeof(MessageHolder));
Org.Neo4j.cluster.InstanceId upToDateClusterMember = new Org.Neo4j.cluster.InstanceId(1);
// What we know
when(ctx.LastLearnedInstanceId).thenReturn(0L);
when(ctx.GetPaxosInstance(new Org.Neo4j.cluster.protocol.atomicbroadcast.multipaxos.InstanceId(1L))).thenReturn(new PaxosInstance(null, new Org.Neo4j.cluster.protocol.atomicbroadcast.multipaxos.InstanceId(1L)));
when(ctx.LastKnownAliveUpToDateInstance).thenReturn(upToDateClusterMember);
when(ctx.GetUriForId(upToDateClusterMember)).thenReturn(new URI("c:/1"));
// What we know the cluster knows
when(ctx.LastKnownLearnedInstanceInCluster).thenReturn(1L);
// When
Message <LearnerMessage> message = Message.to(LearnerMessage.CatchUp, new URI("c:/2"), 2L).setHeader(Message.HEADER_FROM, "c:/2").setHeader(Message.HEADER_INSTANCE_ID, "2");
State newState = state.handle(ctx, message, outgoing);
// Then
assertThat(newState, equalTo(LearnerState.Learner));
verify(outgoing).offer(Message.to(LearnerMessage.LearnRequest, new URI("c:/1"), new LearnerMessage.LearnRequestState()).setHeader(Org.Neo4j.cluster.protocol.atomicbroadcast.multipaxos.InstanceId.INSTANCE, Convert.ToString(1L)));
verify(ctx).setTimeout("learn", Message.timeout(LearnerMessage.LearnTimedout, message));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void learnerServingOldInstanceShouldNotLogErrorIfItDoesNotHaveIt() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void LearnerServingOldInstanceShouldNotLogErrorIfItDoesNotHaveIt()
{
// Given
LearnerState state = LearnerState.Learner;
LearnerContext ctx = mock(typeof(LearnerContext));
MessageHolder outgoing = mock(typeof(MessageHolder));
// The instance will be asked for paxos instance 4...
InstanceId paxosInstanceIdIDontHave = new InstanceId(4);
Message <LearnerMessage> messageRequestingId = Message.to(LearnerMessage.LearnRequest, URI.create("c:/1")).setHeader(Message.HEADER_FROM, "c:/2").setHeader(InstanceId.INSTANCE, "4");
// ...but it does not have it yet
when(ctx.GetPaxosInstance(paxosInstanceIdIDontHave)).thenReturn(new PaxosInstance(mock(typeof(PaxosInstanceStore)), paxosInstanceIdIDontHave));
// When
state.handle(ctx, messageRequestingId, outgoing);
// Then
// verify there is no logging of the failure
verify(ctx, never()).notifyLearnMiss(paxosInstanceIdIDontHave);
// but the learn failed went out anyway
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: verify(outgoing, times(1)).offer(org.mockito.ArgumentMatchers.argThat<org.neo4j.cluster.com.message.Message<? extends org.neo4j.cluster.com.message.MessageType>>(new org.neo4j.cluster.protocol.MessageArgumentMatcher()
verify(outgoing, times(1)).offer(ArgumentMatchers.argThat <Message <MessageType> >(new MessageArgumentMatcher()
.onMessageType(LearnerMessage.LearnFailed).to(URI.create("c:/2"))));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void learnerShouldAskAllAliveInstancesAndTheseOnlyForMissingValue() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void LearnerShouldAskAllAliveInstancesAndTheseOnlyForMissingValue()
{
// Given
IList <URI> allMembers = new List <URI>(3);
URI instance1 = URI.create("c:/1"); // this one is failed
URI instance2 = URI.create("c:/2"); // this one is ok and will respond
URI instance3 = URI.create("c:/3"); // this one is the requesting instance
URI instance4 = URI.create("c:/4"); // and this one is ok and will respond too
allMembers.Add(instance1);
allMembers.Add(instance2);
allMembers.Add(instance3);
allMembers.Add(instance4);
ISet <Org.Neo4j.cluster.InstanceId> aliveInstanceIds = new HashSet <Org.Neo4j.cluster.InstanceId>();
Org.Neo4j.cluster.InstanceId id2 = new Org.Neo4j.cluster.InstanceId(2);
Org.Neo4j.cluster.InstanceId id4 = new Org.Neo4j.cluster.InstanceId(4);
aliveInstanceIds.Add(id2);
aliveInstanceIds.Add(id4);
LearnerState state = LearnerState.Learner;
LearnerContext ctx = mock(typeof(LearnerContext));
MessageHolder outgoing = mock(typeof(MessageHolder));
InstanceId paxosInstanceIdIAskedFor = new InstanceId(4);
when(ctx.LastDeliveredInstanceId).thenReturn(3L);
when(ctx.LastKnownLearnedInstanceInCluster).thenReturn(5L);
when(ctx.MemberURIs).thenReturn(allMembers);
when(ctx.Alive).thenReturn(aliveInstanceIds);
when(ctx.GetUriForId(id2)).thenReturn(instance2);
when(ctx.GetUriForId(id4)).thenReturn(instance4);
when(ctx.GetPaxosInstance(paxosInstanceIdIAskedFor)).thenReturn(new PaxosInstance(mock(typeof(PaxosInstanceStore)), paxosInstanceIdIAskedFor));
Message <LearnerMessage> theCause = Message.to(LearnerMessage.CatchUp, instance2); // could be anything, really
// When
state.handle(ctx, Message.timeout(LearnerMessage.LearnTimedout, theCause), outgoing);
// Then
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: verify(outgoing, times(1)).offer(org.mockito.ArgumentMatchers.argThat<org.neo4j.cluster.com.message.Message<? extends org.neo4j.cluster.com.message.MessageType>>(new org.neo4j.cluster.protocol.MessageArgumentMatcher()
verify(outgoing, times(1)).offer(ArgumentMatchers.argThat <Message <MessageType> >(new MessageArgumentMatcher()
.onMessageType(LearnerMessage.LearnRequest).to(instance2)));
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: verify(outgoing, times(1)).offer(org.mockito.ArgumentMatchers.argThat<org.neo4j.cluster.com.message.Message<? extends org.neo4j.cluster.com.message.MessageType>>(new org.neo4j.cluster.protocol.MessageArgumentMatcher()
verify(outgoing, times(1)).offer(ArgumentMatchers.argThat <Message <MessageType> >(new MessageArgumentMatcher()
.onMessageType(LearnerMessage.LearnRequest).to(instance4)));
verifyNoMoreInteractions(outgoing);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void learnerReceivingLearnFailedShouldLogIt() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void LearnerReceivingLearnFailedShouldLogIt()
{
// Given
LearnerState state = LearnerState.Learner;
LearnerContext ctx = mock(typeof(LearnerContext));
MessageHolder outgoing = mock(typeof(MessageHolder));
InstanceId paxosInstanceIdIAskedFor = new InstanceId(4);
Message <LearnerMessage> theLearnFailure = Message.to(LearnerMessage.LearnFailed, URI.create("c:/1")).setHeader(Message.HEADER_FROM, "c:/2").setHeader(InstanceId.INSTANCE, "4");
when(ctx.GetPaxosInstance(paxosInstanceIdIAskedFor)).thenReturn(new PaxosInstance(mock(typeof(PaxosInstanceStore)), paxosInstanceIdIAskedFor));
when(ctx.MemberURIs).thenReturn(Collections.singletonList(URI.create("c:/2")));
// When
state.handle(ctx, theLearnFailure, outgoing);
// Then
// verify that the failure was logged
verify(ctx, times(1)).notifyLearnMiss(paxosInstanceIdIAskedFor);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldNotCloseTheGapIfItsTheCoordinatorAndTheGapIsSmallerThanTheThreshold() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldNotCloseTheGapIfItsTheCoordinatorAndTheGapIsSmallerThanTheThreshold()
{
// Given
// A coordinator that knows that the last Paxos instance delivered is 3
long lastDelivered = 3L;
LearnerState learner = LearnerState.Learner;
Org.Neo4j.cluster.InstanceId memberId = new Org.Neo4j.cluster.InstanceId(42);
LearnerContext context = mock(typeof(LearnerContext));
when(context.IsMe(any())).thenReturn(true);
when(context.Coordinator).thenReturn(memberId); // so it's the coordinator
when(context.LastDeliveredInstanceId).thenReturn(lastDelivered);
// and has this list of pending instances (up to id 14)
IList <PaxosInstance> pendingInstances = new LinkedList <PaxosInstance>();
for (int i = 1; i < 12; i++) // start at 1 because instance 3 is already delivered
{
InstanceId instanceId = new InstanceId(lastDelivered + i);
PaxosInstance value = new PaxosInstance(mock(typeof(PaxosInstanceStore)), instanceId);
value.Closed("", "");
when(context.GetPaxosInstance(instanceId)).thenReturn(value);
pendingInstances.Add(value);
}
when(context.GetLog(any())).thenReturn(mock(typeof(Log)));
Message <LearnerMessage> incomingInstance = Message.to(LearnerMessage.Learn, URI.create("c:/1"), new LearnerMessage.LearnState(new object())).setHeader(Message.HEADER_FROM, "c:/2").setHeader(Message.HEADER_CONVERSATION_ID, "conversation-id").setHeader(InstanceId.INSTANCE, "" + (lastDelivered + LearnerContext_Fields.LEARN_GAP_THRESHOLD));
// When
// it receives a message with Paxos instance id at the threshold
learner.handle(context, incomingInstance, mock(typeof(MessageHolder)));
// Then
// it waits and doesn't deliver anything
foreach (PaxosInstance pendingInstance in pendingInstances)
{
assertFalse(pendingInstance.IsState(PaxosInstance.State.Delivered));
}
verify(context, times(0)).LastDeliveredInstanceId = anyLong();
}