public async Task ShouldTimeoutAfterXSecondsIfCannotReplicateCommandAndRollbackIndexes()
{
_peers = new List <IPeer>();
for (var i = 0; i < 3; i++)
{
_peers.Add(new FakePeer(false, false, false));
}
_peers.Add(new FakePeer(true, true, true));
_currentState = new CurrentState(_id, 1, default(string), 0, 0, default(string));
_settings = new InMemorySettingsBuilder().WithCommandTimeout(1).Build();
var leader = new Leader(_currentState, _fsm, (s) => _peers, _log, _node, _settings, _rules, _loggerFactory.Object);
var command = new FakeCommand();
var response = await leader.Accept(command);
var error = (ErrorResponse <FakeCommand>)response;
error.Error.ShouldBe("Unable to replicate command to peers due to timeout.");
bool TestPeerStates(List <PeerState> peerState)
{
var passed = 0;
peerState.ForEach(pS =>
{
if (pS.MatchIndex.IndexOfHighestKnownReplicatedLog == 0)
{
passed++;
}
if (pS.NextIndex.NextLogIndexToSendToPeer == 1)
{
passed++;
}
});
return(passed == peerState.Count * 2);
}
var result = WaitFor(1000).Until(() => TestPeerStates(leader.PeerStates));
_log.Count().Result.ShouldBe(0);
result.ShouldBeTrue();
}
public async Task ShouldReplicateCommand()
{
_peers = new List <IPeer>();
for (var i = 0; i < 4; i++)
{
_peers.Add(new FakePeer(true, true, true));
}
_currentState = new CurrentState(_id, 1, default(string), 0, 0, default(string));
var leader = new Leader(_currentState, _fsm, (s) => _peers, _log, _node, _settings, _rules, _loggerFactory.Object);
var command = new FakeCommand();
var response = await leader.Accept(command);
response.ShouldBeOfType <OkResponse <FakeCommand> >();
bool TestPeerStates(List <PeerState> peerState)
{
var passed = 0;
peerState.ForEach(pS =>
{
if (pS.MatchIndex.IndexOfHighestKnownReplicatedLog == 1)
{
passed++;
}
if (pS.NextIndex.NextLogIndexToSendToPeer == 2)
{
passed++;
}
});
return(passed == peerState.Count * 2);
}
var result = WaitFor(1000).Until(() => TestPeerStates(leader.PeerStates));
result.ShouldBeTrue();
}
private void ServerReceives(FakeCommand fakeCommand)
{
_server.Receive(fakeCommand).Wait();
}
private void WhenTheServerReceivesACommand(FakeCommand fakeCommand)
{
_fakeCommand = fakeCommand;
_server.Receive(fakeCommand).Wait();
}