//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testElectionVersionIsResetWhenElectorChangesFromMeToOther()
public virtual void TestElectionVersionIsResetWhenElectorChangesFromMeToOther()
{
const string coordinatorRole = "coordinator";
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.cluster.InstanceId me = new org.neo4j.cluster.InstanceId(1);
InstanceId me = new InstanceId(1);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.cluster.InstanceId winner = new org.neo4j.cluster.InstanceId(2);
InstanceId winner = new InstanceId(2);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.cluster.InstanceId elector = new org.neo4j.cluster.InstanceId(2);
InstanceId elector = new InstanceId(2);
HeartbeatContext heartbeatContext = mock(typeof(HeartbeatContext));
when(heartbeatContext.Failed).thenReturn(Collections.emptySet());
Config config = mock(typeof(Config));
when(config.Get(ClusterSettings.max_acceptors)).thenReturn(10);
MultiPaxosContext multiPaxosContext = new MultiPaxosContext(me, Iterables.iterable(new ElectionRole(coordinatorRole)), mock(typeof(ClusterConfiguration)), ThreadStart.run, NullLogProvider.Instance, mock(typeof(ObjectInputStreamFactory)), mock(typeof(ObjectOutputStreamFactory)), mock(typeof(AcceptorInstanceStore)), mock(typeof(Timeouts)), mock(typeof(ElectionCredentialsProvider)), config);
ClusterContext context = multiPaxosContext.ClusterContext;
ElectionContext electionContext = multiPaxosContext.ElectionContext;
ClusterListener listener = mock(typeof(ClusterListener));
context.LastElectorVersion = 5;
context.LastElector = me;
context.AddClusterListener(listener);
long expectedVersion = electionContext.NewConfigurationStateChange().Version;
context.Elected(coordinatorRole, winner, me, expectedVersion);
verify(listener, times(1)).elected(coordinatorRole, winner, null);
context.Elected(coordinatorRole, winner, elector, 2);
verify(listener, times(2)).elected(coordinatorRole, winner, null);
context.Elected(coordinatorRole, winner, elector, 3);
verify(listener, times(3)).elected(coordinatorRole, winner, null);
context.Elected(coordinatorRole, winner, elector, 2);
verifyNoMoreInteractions(listener);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void failedElectorRejoiningMustHaveItsVersionFromVoteRequestsSetTheElectorVersion()
public virtual void FailedElectorRejoiningMustHaveItsVersionFromVoteRequestsSetTheElectorVersion()
{
// Given
const string role1 = "coordinator1";
InstanceId me = new InstanceId(1);
InstanceId failingInstance = new InstanceId(2);
InstanceId forQuorum = new InstanceId(3);
Config config = mock(typeof(Config));
when(config.Get(ClusterSettings.max_acceptors)).thenReturn(10);
ClusterConfiguration clusterConfiguration = mock(typeof(ClusterConfiguration));
IList <InstanceId> clusterMemberIds = new LinkedList <InstanceId>();
clusterMemberIds.Add(failingInstance);
clusterMemberIds.Add(me);
clusterMemberIds.Add(forQuorum);
when(clusterConfiguration.MemberIds).thenReturn(clusterMemberIds);
MultiPaxosContext context = new MultiPaxosContext(me, Iterables.iterable(new ElectionRole(role1)), clusterConfiguration, ThreadStart.run, NullLogProvider.Instance, mock(typeof(ObjectInputStreamFactory)), mock(typeof(ObjectOutputStreamFactory)), mock(typeof(AcceptorInstanceStore)), mock(typeof(Timeouts)), mock(typeof(ElectionCredentialsProvider)), config);
HeartbeatContext heartbeatContext = context.HeartbeatContext;
ClusterContext clusterContext = context.ClusterContext;
clusterContext.LastElector = failingInstance;
clusterContext.LastElectorVersion = 8;
// When the elector fails
heartbeatContext.Suspicions(forQuorum, Collections.singleton(failingInstance));
heartbeatContext.Suspect(failingInstance);
// Then the elector is reset to defaults
assertEquals(clusterContext.LastElector, InstanceId.NONE);
assertEquals(clusterContext.LastElectorVersion, Org.Neo4j.cluster.protocol.cluster.ClusterContext_Fields.NO_ELECTOR_VERSION);
// When the elector comes back with an election result
clusterContext.Elected(role1, forQuorum, failingInstance, 9);
// Then the result is actually respected
assertEquals(clusterContext.LastElector, failingInstance);
assertEquals(clusterContext.LastElectorVersion, 9);
}
/*
* This assumes an instance leaves the cluster normally and then rejoins, without any elections in between. The
* expected result is that it will succeed in sending election results.
*/
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void electorLeavingAndRejoiningWithNoElectionsInBetweenMustStillHaveElectionsGoThrough()
public virtual void ElectorLeavingAndRejoiningWithNoElectionsInBetweenMustStillHaveElectionsGoThrough()
{
// Given
const string role1 = "coordinator1";
InstanceId me = new InstanceId(1);
InstanceId leavingInstance = new InstanceId(2);
InstanceId forQuorum = new InstanceId(3);
Config config = mock(typeof(Config));
when(config.Get(ClusterSettings.max_acceptors)).thenReturn(10);
ClusterConfiguration clusterConfiguration = mock(typeof(ClusterConfiguration));
IList <InstanceId> clusterMemberIds = new LinkedList <InstanceId>();
clusterMemberIds.Add(leavingInstance);
clusterMemberIds.Add(me);
clusterMemberIds.Add(forQuorum);
when(clusterConfiguration.MemberIds).thenReturn(clusterMemberIds);
MultiPaxosContext context = new MultiPaxosContext(me, Iterables.iterable(new ElectionRole(role1)), clusterConfiguration, ThreadStart.run, NullLogProvider.Instance, mock(typeof(ObjectInputStreamFactory)), mock(typeof(ObjectOutputStreamFactory)), mock(typeof(AcceptorInstanceStore)), mock(typeof(Timeouts)), mock(typeof(ElectionCredentialsProvider)), config);
ClusterContext clusterContext = context.ClusterContext;
clusterContext.LastElector = leavingInstance;
clusterContext.LastElectorVersion = 8;
// When the elector leaves the cluster
clusterContext.Left(leavingInstance);
// Then the elector is reset to defaults
assertEquals(clusterContext.LastElector, InstanceId.NONE);
assertEquals(clusterContext.LastElectorVersion, Org.Neo4j.cluster.protocol.cluster.ClusterContext_Fields.NO_ELECTOR_VERSION);
// When the elector comes back with an election result
// We don't need to join, election results do not check for elector membership
clusterContext.Elected(role1, forQuorum, leavingInstance, 9);
// Then the result is actually respected
assertEquals(clusterContext.LastElector, leavingInstance);
assertEquals(clusterContext.LastElectorVersion, 9);
}
