KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use Request method of Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest class

Best Coyote code snippet using Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest.Request

RaftTests.cs

Source:RaftTests.cs

...43                    this.Leader = leader;44                    this.Term = term;45                }46            }47            internal class RedirectRequest : Event48            {49                public Event Request;50                public RedirectRequest(Event request)51                    : base()52                {53                    this.Request = request;54                }55            }56            internal class ShutDown : Event57            {58            }59            private class LocalEvent : Event60            {61            }62            private ActorId[] Servers;63            private int NumberOfServers;64            private ActorId Leader;65            private int LeaderTerm;66            private ActorId Client;67            [Start]68            [OnEntry(nameof(EntryOnInit))]69            [OnEventGotoState(typeof(LocalEvent), typeof(Configuring))]70            private class Init : State71            {72            }73            private void EntryOnInit()74            {75                this.NumberOfServers = 5;76                this.LeaderTerm = 0;77                this.Servers = new ActorId[this.NumberOfServers];78                for (int idx = 0; idx < this.NumberOfServers; idx++)79                {80                    this.Servers[idx] = this.CreateActor(typeof(Server));81                }82                this.Client = this.CreateActor(typeof(Client));83                this.RaiseEvent(new LocalEvent());84            }85            [OnEntry(nameof(ConfiguringOnInit))]86            [OnEventGotoState(typeof(LocalEvent), typeof(Availability.Unavailable))]87            private class Configuring : State88            {89            }90            private void ConfiguringOnInit()91            {92                for (int idx = 0; idx < this.NumberOfServers; idx++)93                {94                    this.SendEvent(this.Servers[idx], new Server.ConfigureEvent(idx, this.Servers, this.Id));95                }96                this.SendEvent(this.Client, new Client.ConfigureEvent(this.Id));97                this.RaiseEvent(new LocalEvent());98            }99            private class Availability : StateGroup100            {101                [OnEventDoAction(typeof(NotifyLeaderUpdate), nameof(BecomeAvailable))]102                [OnEventDoAction(typeof(ShutDown), nameof(ShuttingDown))]103                [OnEventGotoState(typeof(LocalEvent), typeof(Available))]104                [DeferEvents(typeof(Client.Request))]105                public class Unavailable : State106                {107                }108                [OnEventDoAction(typeof(Client.Request), nameof(SendClientRequestToLeader))]109                [OnEventDoAction(typeof(RedirectRequest), nameof(RedirectClientRequest))]110                [OnEventDoAction(typeof(NotifyLeaderUpdate), nameof(RefreshLeader))]111                [OnEventDoAction(typeof(ShutDown), nameof(ShuttingDown))]112                [OnEventGotoState(typeof(LocalEvent), typeof(Unavailable))]113                public class Available : State114                {115                }116            }117            private void BecomeAvailable(Event e)118            {119                this.UpdateLeader(e as NotifyLeaderUpdate);120                this.RaiseEvent(new LocalEvent());121            }122            private void SendClientRequestToLeader(Event e)123            {124                this.SendEvent(this.Leader, e);125            }126            private void RedirectClientRequest(Event e)127            {128                this.SendEvent(this.Id, (e as RedirectRequest).Request);129            }130            private void RefreshLeader(Event e)131            {132                this.UpdateLeader(e as NotifyLeaderUpdate);133            }134            private void ShuttingDown()135            {136                for (int idx = 0; idx < this.NumberOfServers; idx++)137                {138                    this.SendEvent(this.Servers[idx], new Server.ShutDown());139                }140                this.RaiseHaltEvent();141            }142            private void UpdateLeader(NotifyLeaderUpdate request)143            {144                if (this.LeaderTerm < request.Term)145                {146                    this.Leader = request.Leader;147                    this.LeaderTerm = request.Term;148                }149            }150        }151        /// <summary>152        /// A server in Raft can be one of the following three roles:153        /// follower, candidate or leader.154        /// </summary>155        private class Server : StateMachine156        {157            /// <summary>158            /// Used to configure the server.159            /// </summary>160            public class ConfigureEvent : Event161            {162                public int Id;163                public ActorId[] Servers;164                public ActorId ClusterManager;165                public ConfigureEvent(int id, ActorId[] servers, ActorId manager)166                    : base()167                {168                    this.Id = id;169                    this.Servers = servers;170                    this.ClusterManager = manager;171                }172            }173            /// <summary>174            /// Initiated by candidates during elections.175            /// </summary>176            public class VoteRequest : Event177            {178                public int Term; // candidate's term179                public ActorId CandidateId; // candidate requesting vote180                public int LastLogIndex; // index of candidate's last log entry181                public int LastLogTerm; // term of candidate's last log entry182                public VoteRequest(int term, ActorId candidateId, int lastLogIndex, int lastLogTerm)183                    : base()184                {185                    this.Term = term;186                    this.CandidateId = candidateId;187                    this.LastLogIndex = lastLogIndex;188                    this.LastLogTerm = lastLogTerm;189                }190            }191            /// <summary>192            /// Response to a vote request.193            /// </summary>194            public class VoteResponse : Event195            {196                public int Term; // currentTerm, for candidate to update itself197                public bool VoteGranted; // true means candidate received vote198                public VoteResponse(int term, bool voteGranted)199                    : base()200                {201                    this.Term = term;202                    this.VoteGranted = voteGranted;203                }204            }205            /// <summary>206            /// Initiated by leaders to replicate log entries and207            /// to provide a form of heartbeat.208            /// </summary>209            public class AppendEntriesRequest : Event210            {211                public int Term; // leader's term212                public ActorId LeaderId; // so follower can redirect clients213                public int PrevLogIndex; // index of log entry immediately preceding new ones214                public int PrevLogTerm; // term of PrevLogIndex entry215                public List<Log> Entries; // log entries to store (empty for heartbeat; may send more than one for efficiency)216                public int LeaderCommit; // leader's CommitIndex217                public ActorId ReceiverEndpoint; // client218                public AppendEntriesRequest(int term, ActorId leaderId, int prevLogIndex,219                    int prevLogTerm, List<Log> entries, int leaderCommit, ActorId client)220                    : base()221                {222                    this.Term = term;223                    this.LeaderId = leaderId;224                    this.PrevLogIndex = prevLogIndex;225                    this.PrevLogTerm = prevLogTerm;226                    this.Entries = entries;227                    this.LeaderCommit = leaderCommit;228                    this.ReceiverEndpoint = client;229                }230            }231            /// <summary>232            /// Response to an append entries request.233            /// </summary>234            public class AppendEntriesResponse : Event235            {236                public int Term; // current Term, for leader to update itself237                public bool Success; // true if follower contained entry matching PrevLogIndex and PrevLogTerm238                public ActorId Server;239                public ActorId ReceiverEndpoint; // client240                public AppendEntriesResponse(int term, bool success, ActorId server, ActorId client)241                    : base()242                {243                    this.Term = term;244                    this.Success = success;245                    this.Server = server;246                    this.ReceiverEndpoint = client;247                }248            }249            // Events for transitioning a server between roles.250            private class BecomeFollower : Event251            {252            }253            private class BecomeCandidate : Event254            {255            }256            private class BecomeLeader : Event257            {258            }259            internal class ShutDown : Event260            {261            }262            /// <summary>263            /// The id of this server.264            /// </summary>265            private int ServerId;266            /// <summary>267            /// The cluster manager id.268            /// </summary>269            private ActorId ClusterManager;270            /// <summary>271            /// The servers.272            /// </summary>273            private ActorId[] Servers;274            /// <summary>275            /// Leader id.276            /// </summary>277            private ActorId LeaderId;278            /// <summary>279            /// The election timer of this server.280            /// </summary>281            private ActorId ElectionTimer;282            /// <summary>283            /// The periodic timer of this server.284            /// </summary>285            private ActorId PeriodicTimer;286            /// <summary>287            /// Latest term server has seen (initialized to 0 on288            /// first boot, increases monotonically).289            /// </summary>290            private int CurrentTerm;291            /// <summary>292            /// Candidate id that received vote in current term (or null if none).293            /// </summary>294            private ActorId VotedFor;295            /// <summary>296            /// Log entries.297            /// </summary>298            private List<Log> Logs;299            /// <summary>300            /// Index of highest log entry known to be committed (initialized301            /// to 0, increases monotonically).302            /// </summary>303            private int CommitIndex;304            /// <summary>305            /// Index of the highest log entry applied (initialized to 0, increases monotonically).306            /// </summary>307            private int LastApplied;308            /// <summary>309            /// For each server, index of the next log entry to send to that310            /// server (initialized to leader last log index + 1).311            /// </summary>312            private Dictionary<ActorId, int> NextIndex;313            /// <summary>314            /// For each server, index of highest log entry known to be replicated315            /// on server (initialized to 0, increases monotonically).316            /// </summary>317            private Dictionary<ActorId, int> MatchIndex;318            /// <summary>319            /// Number of received votes.320            /// </summary>321            private int VotesReceived;322            /// <summary>323            /// The latest client request.324            /// </summary>325            private Client.Request LastClientRequest;326            [Start]327            [OnEntry(nameof(EntryOnInit))]328            [OnEventDoAction(typeof(ConfigureEvent), nameof(SetupEvent))]329            [OnEventGotoState(typeof(BecomeFollower), typeof(Follower))]330            [DeferEvents(typeof(VoteRequest), typeof(AppendEntriesRequest))]331            private class Init : State332            {333            }334            private void EntryOnInit()335            {336                this.CurrentTerm = 0;337                this.LeaderId = null;338                this.VotedFor = null;339                this.Logs = new List<Log>();340                this.CommitIndex = 0;341                this.LastApplied = 0;342                this.NextIndex = new Dictionary<ActorId, int>();343                this.MatchIndex = new Dictionary<ActorId, int>();344            }345            private void SetupEvent(Event e)346            {347                this.ServerId = (e as ConfigureEvent).Id;348                this.Servers = (e as ConfigureEvent).Servers;349                this.ClusterManager = (e as ConfigureEvent).ClusterManager;350                this.ElectionTimer = this.CreateActor(typeof(ElectionTimer));351                this.SendEvent(this.ElectionTimer, new ElectionTimer.ConfigureEvent(this.Id));352                this.PeriodicTimer = this.CreateActor(typeof(PeriodicTimer));353                this.SendEvent(this.PeriodicTimer, new PeriodicTimer.ConfigureEvent(this.Id));354                this.RaiseEvent(new BecomeFollower());355            }356            [OnEntry(nameof(FollowerOnInit))]357            [OnEventDoAction(typeof(Client.Request), nameof(RedirectClientRequest))]358            [OnEventDoAction(typeof(VoteRequest), nameof(VoteAsFollower))]359            [OnEventDoAction(typeof(VoteResponse), nameof(RespondVoteAsFollower))]360            [OnEventDoAction(typeof(AppendEntriesRequest), nameof(AppendEntriesAsFollower))]361            [OnEventDoAction(typeof(AppendEntriesResponse), nameof(RespondAppendEntriesAsFollower))]362            [OnEventDoAction(typeof(ElectionTimer.Timeout), nameof(StartLeaderElection))]363            [OnEventDoAction(typeof(ShutDown), nameof(ShuttingDown))]364            [OnEventGotoState(typeof(BecomeFollower), typeof(Follower))]365            [OnEventGotoState(typeof(BecomeCandidate), typeof(Candidate))]366            [IgnoreEvents(typeof(PeriodicTimer.Timeout))]367            private class Follower : State368            {369            }370            private void FollowerOnInit()371            {372                this.LeaderId = null;373                this.VotesReceived = 0;374                this.SendEvent(this.ElectionTimer, new ElectionTimer.StartTimerEvent());375            }376            private void RedirectClientRequest(Event e)377            {378                if (this.LeaderId != null)379                {380                    this.SendEvent(this.LeaderId, e);381                }382                else383                {384                    this.SendEvent(this.ClusterManager, new ClusterManager.RedirectRequest(e));385                }386            }387            private void StartLeaderElection()388            {389                this.RaiseEvent(new BecomeCandidate());390            }391            private void VoteAsFollower(Event e)392            {393                var request = e as VoteRequest;394                if (request.Term > this.CurrentTerm)395                {396                    this.CurrentTerm = request.Term;397                    this.VotedFor = null;398                }399                this.Vote(e as VoteRequest);400            }401            private void RespondVoteAsFollower(Event e)402            {403                var request = e as VoteResponse;404                if (request.Term > this.CurrentTerm)405                {406                    this.CurrentTerm = request.Term;407                    this.VotedFor = null;408                }409            }410            private void AppendEntriesAsFollower(Event e)411            {412                var request = e as AppendEntriesRequest;413                if (request.Term > this.CurrentTerm)414                {415                    this.CurrentTerm = request.Term;416                    this.VotedFor = null;417                }418                this.AppendEntries(e as AppendEntriesRequest);419            }420            private void RespondAppendEntriesAsFollower(Event e)421            {422                var request = e as AppendEntriesResponse;423                if (request.Term > this.CurrentTerm)424                {425                    this.CurrentTerm = request.Term;426                    this.VotedFor = null;427                }428            }429            [OnEntry(nameof(CandidateOnInit))]430            [OnEventDoAction(typeof(Client.Request), nameof(RedirectClientRequest))]431            [OnEventDoAction(typeof(VoteRequest), nameof(VoteAsCandidate))]432            [OnEventDoAction(typeof(VoteResponse), nameof(RespondVoteAsCandidate))]433            [OnEventDoAction(typeof(AppendEntriesRequest), nameof(AppendEntriesAsCandidate))]434            [OnEventDoAction(typeof(AppendEntriesResponse), nameof(RespondAppendEntriesAsCandidate))]435            [OnEventDoAction(typeof(ElectionTimer.Timeout), nameof(StartLeaderElection))]436            [OnEventDoAction(typeof(PeriodicTimer.Timeout), nameof(BroadcastVoteRequests))]437            [OnEventDoAction(typeof(ShutDown), nameof(ShuttingDown))]438            [OnEventGotoState(typeof(BecomeLeader), typeof(Leader))]439            [OnEventGotoState(typeof(BecomeFollower), typeof(Follower))]440            [OnEventGotoState(typeof(BecomeCandidate), typeof(Candidate))]441            private class Candidate : State442            {443            }444            private void CandidateOnInit()445            {446                this.CurrentTerm++;447                this.VotedFor = this.Id;448                this.VotesReceived = 1;449                this.SendEvent(this.ElectionTimer, new ElectionTimer.StartTimerEvent());450                this.BroadcastVoteRequests();451            }452            private void BroadcastVoteRequests()453            {454                // BUG: duplicate votes from same follower455                this.SendEvent(this.PeriodicTimer, new PeriodicTimer.StartTimerEvent());456                for (int idx = 0; idx < this.Servers.Length; idx++)457                {458                    if (idx == this.ServerId)459                    {460                        continue;461                    }462                    var lastLogIndex = this.Logs.Count;463                    var lastLogTerm = this.GetLogTermForIndex(lastLogIndex);464                    this.SendEvent(this.Servers[idx], new VoteRequest(this.CurrentTerm, this.Id,465                        lastLogIndex, lastLogTerm));466                }467            }468            private void VoteAsCandidate(Event e)469            {470                var request = e as VoteRequest;471                if (request.Term > this.CurrentTerm)472                {473                    this.CurrentTerm = request.Term;474                    this.VotedFor = null;475                    this.Vote(e as VoteRequest);476                    this.RaiseEvent(new BecomeFollower());477                }478                else479                {480                    this.Vote(e as VoteRequest);481                }482            }483            private void RespondVoteAsCandidate(Event e)484            {485                var request = e as VoteResponse;486                if (request.Term > this.CurrentTerm)487                {488                    this.CurrentTerm = request.Term;489                    this.VotedFor = null;490                    this.RaiseEvent(new BecomeFollower());491                }492                else if (request.Term != this.CurrentTerm)493                {494                    return;495                }496                if (request.VoteGranted)497                {498                    this.VotesReceived++;499                    if (this.VotesReceived >= (this.Servers.Length / 2) + 1)500                    {501                        this.VotesReceived = 0;502                        this.RaiseEvent(new BecomeLeader());503                    }504                }505            }506            private void AppendEntriesAsCandidate(Event e)507            {508                var request = e as AppendEntriesRequest;509                if (request.Term > this.CurrentTerm)510                {511                    this.CurrentTerm = request.Term;512                    this.VotedFor = null;513                    this.AppendEntries(e as AppendEntriesRequest);514                    this.RaiseEvent(new BecomeFollower());515                }516                else517                {518                    this.AppendEntries(e as AppendEntriesRequest);519                }520            }521            private void RespondAppendEntriesAsCandidate(Event e)522            {523                var request = e as AppendEntriesResponse;524                if (request.Term > this.CurrentTerm)525                {526                    this.CurrentTerm = request.Term;527                    this.VotedFor = null;528                    this.RaiseEvent(new BecomeFollower());529                }530            }531            [OnEntry(nameof(LeaderOnInit))]532            [OnEventDoAction(typeof(Client.Request), nameof(ProcessClientRequest))]533            [OnEventDoAction(typeof(VoteRequest), nameof(VoteAsLeader))]534            [OnEventDoAction(typeof(VoteResponse), nameof(RespondVoteAsLeader))]535            [OnEventDoAction(typeof(AppendEntriesRequest), nameof(AppendEntriesAsLeader))]536            [OnEventDoAction(typeof(AppendEntriesResponse), nameof(RespondAppendEntriesAsLeader))]537            [OnEventDoAction(typeof(ShutDown), nameof(ShuttingDown))]538            [OnEventGotoState(typeof(BecomeFollower), typeof(Follower))]539            [IgnoreEvents(typeof(ElectionTimer.Timeout), typeof(PeriodicTimer.Timeout))]540            private class Leader : State541            {542            }543            private void LeaderOnInit()544            {545                this.Monitor<SafetyMonitor>(new SafetyMonitor.NotifyLeaderElected(this.CurrentTerm));546                this.SendEvent(this.ClusterManager, new ClusterManager.NotifyLeaderUpdate(this.Id, this.CurrentTerm));547                var logIndex = this.Logs.Count;548                var logTerm = this.GetLogTermForIndex(logIndex);549                this.NextIndex.Clear();550                this.MatchIndex.Clear();551                for (int idx = 0; idx < this.Servers.Length; idx++)552                {553                    if (idx == this.ServerId)554                    {555                        continue;556                    }557                    this.NextIndex.Add(this.Servers[idx], logIndex + 1);558                    this.MatchIndex.Add(this.Servers[idx], 0);559                }560                for (int idx = 0; idx < this.Servers.Length; idx++)561                {562                    if (idx == this.ServerId)563                    {564                        continue;565                    }566                    this.SendEvent(this.Servers[idx], new AppendEntriesRequest(this.CurrentTerm, this.Id,567                        logIndex, logTerm, new List<Log>(), this.CommitIndex, null));568                }569            }570            private void ProcessClientRequest(Event e)571            {572                this.LastClientRequest = e as Client.Request;573                var log = new Log(this.CurrentTerm, this.LastClientRequest.Command);574                this.Logs.Add(log);575                this.BroadcastLastClientRequest();576            }577            private void BroadcastLastClientRequest()578            {579                var lastLogIndex = this.Logs.Count;580                this.VotesReceived = 1;581                for (int idx = 0; idx < this.Servers.Length; idx++)582                {583                    if (idx == this.ServerId)584                    {585                        continue;586                    }587                    var server = this.Servers[idx];588                    if (lastLogIndex < this.NextIndex[server])589                    {590                        continue;591                    }592                    var logs = this.Logs.GetRange(this.NextIndex[server] - 1, this.Logs.Count - (this.NextIndex[server] - 1));593                    var prevLogIndex = this.NextIndex[server] - 1;594                    var prevLogTerm = this.GetLogTermForIndex(prevLogIndex);595                    this.SendEvent(server, new AppendEntriesRequest(this.CurrentTerm, this.Id, prevLogIndex,596                        prevLogTerm, logs, this.CommitIndex, this.LastClientRequest.Client));597                }598            }599            private void VoteAsLeader(Event e)600            {601                var request = e as VoteRequest;602                if (request.Term > this.CurrentTerm)603                {604                    this.CurrentTerm = request.Term;605                    this.VotedFor = null;606                    this.RedirectLastClientRequestToClusterManager();607                    this.Vote(e as VoteRequest);608                    this.RaiseEvent(new BecomeFollower());609                }610                else611                {612                    this.Vote(e as VoteRequest);613                }614            }615            private void RespondVoteAsLeader(Event e)616            {617                var request = e as VoteResponse;618                if (request.Term > this.CurrentTerm)619                {620                    this.CurrentTerm = request.Term;621                    this.VotedFor = null;622                    this.RedirectLastClientRequestToClusterManager();623                    this.RaiseEvent(new BecomeFollower());624                }625            }626            private void AppendEntriesAsLeader(Event e)627            {628                var request = e as AppendEntriesRequest;629                if (request.Term > this.CurrentTerm)630                {631                    this.CurrentTerm = request.Term;632                    this.VotedFor = null;633                    this.RedirectLastClientRequestToClusterManager();634                    this.AppendEntries(e as AppendEntriesRequest);635                    this.RaiseEvent(new BecomeFollower());636                }637            }638            private void RespondAppendEntriesAsLeader(Event e)639            {640                var request = e as AppendEntriesResponse;641                if (request.Term > this.CurrentTerm)642                {643                    this.CurrentTerm = request.Term;644                    this.VotedFor = null;645                    this.RedirectLastClientRequestToClusterManager();646                    this.RaiseEvent(new BecomeFollower());647                }648                else if (request.Term != this.CurrentTerm)649                {650                    return;651                }652                if (request.Success)653                {654                    this.NextIndex[request.Server] = this.Logs.Count + 1;655                    this.MatchIndex[request.Server] = this.Logs.Count;656                    this.VotesReceived++;657                    if (request.ReceiverEndpoint != null &&658                        this.VotesReceived >= (this.Servers.Length / 2) + 1)659                    {660                        var commitIndex = this.MatchIndex[request.Server];661                        if (commitIndex > this.CommitIndex &&662                            this.Logs[commitIndex - 1].Term == this.CurrentTerm)663                        {664                            this.CommitIndex = commitIndex;665                        }666                        this.VotesReceived = 0;667                        this.LastClientRequest = null;668                        this.SendEvent(request.ReceiverEndpoint, new Client.Response());669                    }670                }671                else672                {673                    if (this.NextIndex[request.Server] > 1)674                    {675                        this.NextIndex[request.Server] = this.NextIndex[request.Server] - 1;676                    }677                    var logs = this.Logs.GetRange(this.NextIndex[request.Server] - 1, this.Logs.Count - (this.NextIndex[request.Server] - 1));678                    var prevLogIndex = this.NextIndex[request.Server] - 1;679                    var prevLogTerm = this.GetLogTermForIndex(prevLogIndex);680                    this.SendEvent(request.Server, new AppendEntriesRequest(this.CurrentTerm, this.Id, prevLogIndex,681                        prevLogTerm, logs, this.CommitIndex, request.ReceiverEndpoint));682                }683            }684            /// <summary>685            /// Processes the given vote request.686            /// </summary>687            /// <param name="request">VoteRequest.</param>688            private void Vote(VoteRequest request)689            {690                var lastLogIndex = this.Logs.Count;691                var lastLogTerm = this.GetLogTermForIndex(lastLogIndex);692                if (request.Term < this.CurrentTerm ||693                    (this.VotedFor != null && this.VotedFor != request.CandidateId) ||694                    lastLogIndex > request.LastLogIndex ||695                    lastLogTerm > request.LastLogTerm)696                {697                    this.SendEvent(request.CandidateId, new VoteResponse(this.CurrentTerm, false));698                }699                else700                {701                    this.VotedFor = request.CandidateId;702                    this.LeaderId = null;703                    this.SendEvent(request.CandidateId, new VoteResponse(this.CurrentTerm, true));704                }705            }706            /// <summary>707            /// Processes the given append entries request.708            /// </summary>709            /// <param name="request">AppendEntriesRequest.</param>710            private void AppendEntries(AppendEntriesRequest request)711            {712                if (request.Term < this.CurrentTerm)713                {714                    this.SendEvent(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm, false,715                        this.Id, request.ReceiverEndpoint));716                }717                else718                {719                    if (request.PrevLogIndex > 0 &&720                        (this.Logs.Count < request.PrevLogIndex ||721                        this.Logs[request.PrevLogIndex - 1].Term != request.PrevLogTerm))722                    {723                        this.SendEvent(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm, false, this.Id, request.ReceiverEndpoint));724                    }725                    else726                    {727                        if (request.Entries.Count > 0)728                        {729                            var currentIndex = request.PrevLogIndex + 1;730                            foreach (var entry in request.Entries)731                            {732                                if (this.Logs.Count < currentIndex)733                                {734                                    this.Logs.Add(entry);735                                }736                                else if (this.Logs[currentIndex - 1].Term != entry.Term)737                                {738                                    this.Logs.RemoveRange(currentIndex - 1, this.Logs.Count - (currentIndex - 1));739                                    this.Logs.Add(entry);740                                }741                                currentIndex++;742                            }743                        }744                        if (request.LeaderCommit > this.CommitIndex &&745                            this.Logs.Count < request.LeaderCommit)746                        {747                            this.CommitIndex = this.Logs.Count;748                        }749                        else if (request.LeaderCommit > this.CommitIndex)750                        {751                            this.CommitIndex = request.LeaderCommit;752                        }753                        if (this.CommitIndex > this.LastApplied)754                        {755                            this.LastApplied++;756                        }757                        this.LeaderId = request.LeaderId;758                        this.SendEvent(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm, true, this.Id, request.ReceiverEndpoint));759                    }760                }761            }762            private void RedirectLastClientRequestToClusterManager()763            {764                if (this.LastClientRequest != null)765                {766                    this.SendEvent(this.ClusterManager, this.LastClientRequest);767                }768            }769            /// <summary>770            /// Returns the log term for the given log index.771            /// </summary>772            /// <param name="logIndex">Index.</param>773            /// <returns>Term.</returns>774            private int GetLogTermForIndex(int logIndex)775            {776                var logTerm = 0;777                if (logIndex > 0)778                {779                    logTerm = this.Logs[logIndex - 1].Term;780                }781                return logTerm;782            }783            private void ShuttingDown()784            {785                this.SendEvent(this.ElectionTimer, HaltEvent.Instance);786                this.SendEvent(this.PeriodicTimer, HaltEvent.Instance);787                this.RaiseHaltEvent();788            }789        }790        private class Client : StateMachine791        {792            /// <summary>793            /// Used to configure the client.794            /// </summary>795            public class ConfigureEvent : Event796            {797                public ActorId Cluster;798                public ConfigureEvent(ActorId cluster)799                    : base()800                {801                    this.Cluster = cluster;802                }803            }804            /// <summary>805            /// Used for a client request.806            /// </summary>807            internal class Request : Event808            {809                public ActorId Client;810                public int Command;811                public Request(ActorId client, int command)812                    : base()813                {814                    this.Client = client;815                    this.Command = command;816                }817            }818            internal class Response : Event819            {820            }821            private class LocalEvent : Event822            {823            }824            private ActorId Cluster;825            private int LatestCommand;826            private int Counter;827            [Start]828            [OnEntry(nameof(InitOnEntry))]829            [OnEventDoAction(typeof(ConfigureEvent), nameof(SetupEvent))]830            [OnEventGotoState(typeof(LocalEvent), typeof(PumpRequest))]831            private class Init : State832            {833            }834            private void InitOnEntry()835            {836                this.LatestCommand = -1;837                this.Counter = 0;838            }839            private void SetupEvent(Event e)840            {841                this.Cluster = (e as ConfigureEvent).Cluster;842                this.RaiseEvent(new LocalEvent());843            }844            [OnEntry(nameof(PumpRequestOnEntry))]845            [OnEventDoAction(typeof(Response), nameof(ProcessResponse))]846            [OnEventGotoState(typeof(LocalEvent), typeof(PumpRequest))]847            private class PumpRequest : State848            {849            }850            private void PumpRequestOnEntry()851            {852                this.LatestCommand = this.RandomInteger(100);853                this.Counter++;854                this.SendEvent(this.Cluster, new Request(this.Id, this.LatestCommand));855            }856            private void ProcessResponse()857            {858                if (this.Counter is 3)859                {860                    this.SendEvent(this.Cluster, new ClusterManager.ShutDown());861                    this.RaiseHaltEvent();862                }863                else864                {865                    this.RaiseEvent(new LocalEvent());866                }867            }868        }...

Request

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Actors.BugFinding.Tests;7using Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest;8{9    {10        public int Candidate;11        public int VoterId;12    }13}14using System;15using System.Collections.Generic;16using System.Linq;17using System.Text;18using System.Threading.Tasks;19using Microsoft.Coyote.Actors.BugFinding.Tests;20using Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest;21{22    {23        public int Candidate;24        public int VoterId;25    }26}27using System;28using System.Collections.Generic;29using System.Linq;30using System.Text;31using System.Threading.Tasks;32using Microsoft.Coyote.Actors.BugFinding.Tests;33using Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest;34{35    {36        public int Candidate;37        public int VoterId;38    }39}40using System;41using System.Collections.Generic;42using System.Linq;43using System.Text;44using System.Threading.Tasks;45using Microsoft.Coyote.Actors.BugFinding.Tests;46using Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest;47{48    {49        public int Candidate;50        public int VoterId;51    }52}53using System;54using System.Collections.Generic;55using System.Linq;56using System.Text;57using System.Threading.Tasks;

Request

Using AI Code Generation

1var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();2var voteRequestResponse = await voteRequest.Request();3var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();4var voteRequestResponse = await voteRequest.Request();5var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();6var voteRequestResponse = await voteRequest.Request();7var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();8var voteRequestResponse = await voteRequest.Request();9var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();10var voteRequestResponse = await voteRequest.Request();11var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();12var voteRequestResponse = await voteRequest.Request();13var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();14var voteRequestResponse = await voteRequest.Request();15var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();16var voteRequestResponse = await voteRequest.Request();17var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();18var voteRequestResponse = await voteRequest.Request();19var voteRequest = new Microsoft.Coyote.Actors.BugFinding.Tests.VoteRequest();20var voteRequestResponse = await voteRequest.Request();

Request

Using AI Code Generation

1ActorId voteRequest = this.CreateActor(typeof(VoteRequest));2this.SendEvent(voteRequest, new Request());3ActorId voteRequest = this.CreateActor(typeof(VoteRequest));4this.SendEvent(voteRequest, new Request());5ActorId voteRequest = this.CreateActor(typeof(VoteRequest));6this.SendEvent(voteRequest, new Request());7ActorId voteRequest = this.CreateActor(typeof(VoteRequest));8this.SendEvent(voteRequest, new Request());9ActorId voteRequest = this.CreateActor(typeof(VoteRequest));10this.SendEvent(voteRequest, new Request());11ActorId voteRequest = this.CreateActor(typeof(VoteRequest));12this.SendEvent(voteRequest, new Request());13ActorId voteRequest = this.CreateActor(typeof(VoteRequest));14this.SendEvent(voteRequest, new Request());15ActorId voteRequest = this.CreateActor(typeof(VoteRequest));16this.SendEvent(voteRequest, new Request());17ActorId voteRequest = this.CreateActor(typeof(VoteRequest));18this.SendEvent(voteRequest, new Request());19ActorId voteRequest = this.CreateActor(typeof(VoteRequest));20this.SendEvent(voteRequest, new Request());21ActorId voteRequest = this.CreateActor(typeof(VoteRequest));22this.SendEvent(voteRequest, new Request());

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.