public void BecomeCandidate(CurrentState state)
{
State?.Stop();
_logger.LogInformation($"{state.Id} became candidate");
var candidate = new Candidate(state, _fsm, _getPeers(state), _log, _random, this, _settings, _rules, _loggerFactory);
State = candidate;
candidate.BeginElection();
}
public void ShouldVoteForSelfWhenElectionStarts()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(true));
}
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
candidate.CurrentState.VotedFor.ShouldBe(_id);
}
public void ShouldIncrementCurrentTermWhenElectionStarts()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(true));
}
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules, _loggerFactory.Object);
candidate.BeginElection();
candidate.CurrentState.CurrentTerm.ShouldBe(1);
}
public void ShouldBecomeLeaderIfReceivesMajorityOfVotes()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(true));
}
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
var node = (NothingNode)_node;
node.BecomeLeaderCount.ShouldBe(1);
}
public void ShouldBecomeFollowerIfDoesntReceiveAnyVotes()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(false));
}
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules, _loggerFactory.Object);
candidate.BeginElection();
var node = (NothingNode)_node;
node.BecomeFollowerCount.ShouldBe(1);
}
public void ShouldStartNewElectionIfTimesout()
{
_peers = new List <IPeer>
{
new FakePeer(false),
new FakePeer(false),
new FakePeer(true),
new FakePeer(true)
};
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
candidate.ShouldBeOfType <Candidate>();
candidate.CurrentState.CurrentTerm.ShouldBe(1);
}
public void ShouldBecomeFollowerIfRequestVoteResponseTermGreaterThanCurrentTerm()
{
_peers = new List <IPeer>
{
new FakePeer(10),
new FakePeer(true),
new FakePeer(true),
new FakePeer(true)
};
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
var node = (NothingNode)_node;
node.BecomeFollowerCount.ShouldBe(1);
}
public void ShouldRequestVotesFromAllPeersWhenElectionStarts()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(true));
}
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
_peers.ForEach(x =>
{
var peer = (FakePeer)x;
peer.RequestVoteResponses.Count.ShouldBe(1);
});
}
public void ShouldBecomeFollowerIfDoesntReceiveMajorityOfVotes()
{
_peers = new List <IPeer>
{
new FakePeer(false),
new FakePeer(false),
new FakePeer(false),
new FakePeer(true)
};
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
var node = (NothingNode)_node;
node.BecomeFollowerCount.ShouldBe(1);
}
public void ShouldBecomeFollowerIfAppendEntriesReceivedFromNewLeaderAndTermGreaterThanCurrentTerm()
{
_peers = new List <IPeer>
{
new FakePeer(false),
new FakePeer(false),
new FakePeer(true),
new FakePeer(true)
};
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
var appendEntriesResponse = candidate.Handle(new AppendEntriesBuilder().WithTerm(2).Build());
appendEntriesResponse.Success.ShouldBeTrue();
var node = (NothingNode)_node;
node.BecomeFollowerCount.ShouldBe(1);
}
public async Task ShouldNotBecomeFollowerIfAppendEntriesReceivedFromNewLeaderAndTermLessThanCurrentTerm()
{
_peers = new List <IPeer>
{
new FakePeer(false),
new FakePeer(false),
new FakePeer(true),
new FakePeer(true)
};
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules, _loggerFactory.Object);
candidate.BeginElection();
var appendEntriesResponse = await candidate.Handle(new AppendEntriesBuilder().WithTerm(0).Build());
appendEntriesResponse.Success.ShouldBeFalse();
var node = (NothingNode)_node;
node.BecomeFollowerCount.ShouldBe(0);
}
public void ShouldResetTimeoutWhenElectionStarts()
{
var candidate = new Candidate(_currentState, _fsm, _peers, _log, _random, _node, _settings, _rules);
candidate.BeginElection();
}