Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

How to use UpdateHeadTail method of Microsoft.Coyote.Actors.BugFinding.Tests.PredSucc class

Best Coyote code snippet using Microsoft.Coyote.Actors.BugFinding.Tests.PredSucc.UpdateHeadTail

ChainReplicationTests.cs

Source:ChainReplicationTests.cs

...364            private void UpdateClients()365            {366                for (int i = 0; i < this.Clients.Count; i++)367                {368                    this.SendEvent(this.Clients[i], new Client.UpdateHeadTail(this.Head, this.Tail));369                }370                this.RaiseEvent(new Done());371            }372            private void UpdateFailureDetector()373            {374                this.SendEvent(this.FailureDetector, new FailureDetector.FailureCorrected(this.Servers));375            }376            [OnEntry(nameof(CorrectTailFailureOnEntry))]377            [OnEventGotoState(typeof(Done), typeof(WaitForFailure), nameof(UpdateFailureDetector))]378            [OnEventDoAction(typeof(TailChanged), nameof(UpdateClients))]379            private class CorrectTailFailure : State380            {381            }382            private void CorrectTailFailureOnEntry()383            {384                this.Servers.RemoveAt(this.Servers.Count - 1);385                this.Monitor<InvariantMonitor>(386                    new InvariantMonitor.UpdateServers(this.Servers));387                this.Monitor<ServerResponseSeqMonitor>(388                    new ServerResponseSeqMonitor.UpdateServers(this.Servers));389                this.Tail = this.Servers[this.Servers.Count - 1];390                this.SendEvent(this.Tail, new BecomeTail(this.Id));391            }392            [OnEntry(nameof(CorrectServerFailureOnEntry))]393            [OnEventGotoState(typeof(Done), typeof(WaitForFailure), nameof(UpdateFailureDetector))]394            [OnEventDoAction(typeof(FixSuccessor), nameof(UpdateClients))]395            [OnEventDoAction(typeof(FixPredecessor), nameof(ProcessFixPredecessor))]396            [OnEventDoAction(typeof(ChainReplicationServer.NewSuccInfo), nameof(SetLastUpdate))]397            [OnEventDoAction(typeof(Success), nameof(ProcessSuccess))]398            private class CorrectServerFailure : State399            {400            }401            private void CorrectServerFailureOnEntry()402            {403                this.Servers.RemoveAt(this.FaultyNodeIndex);404                this.Monitor<InvariantMonitor>(405                    new InvariantMonitor.UpdateServers(this.Servers));406                this.Monitor<ServerResponseSeqMonitor>(407                    new ServerResponseSeqMonitor.UpdateServers(this.Servers));408                this.RaiseEvent(new FixSuccessor());409            }410            private void ProcessFixPredecessor()411            {412                this.SendEvent(this.Servers[this.FaultyNodeIndex - 1], new ChainReplicationServer.NewSuccessor(413                    this.Id, this.Servers[this.FaultyNodeIndex], this.LastAckSent, this.LastUpdateReceivedSucc));414            }415            private void SetLastUpdate(Event e)416            {417                this.LastUpdateReceivedSucc = (e as418                    ChainReplicationServer.NewSuccInfo).LastUpdateReceivedSucc;419                this.LastAckSent = (e as420                    ChainReplicationServer.NewSuccInfo).LastAckSent;421                this.RaiseEvent(new FixPredecessor());422            }423            private void ProcessSuccess() => this.RaiseEvent(new Done());424        }425        private class ChainReplicationServer : StateMachine426        {427            internal class SetupEvent : Event428            {429                public int Id;430                public bool IsHead;431                public bool IsTail;432                public SetupEvent(int id, bool isHead, bool isTail)433                    : base()434                {435                    this.Id = id;436                    this.IsHead = isHead;437                    this.IsTail = isTail;438                }439            }440            internal class PredSucc : Event441            {442                public ActorId Predecessor;443                public ActorId Successor;444                public PredSucc(ActorId pred, ActorId succ)445                    : base()446                {447                    this.Predecessor = pred;448                    this.Successor = succ;449                }450            }451            internal class ForwardUpdate : Event452            {453                public ActorId Predecessor;454                public int NextSeqId;455                public ActorId Client;456                public int Key;457                public int Value;458                public ForwardUpdate(ActorId pred, int nextSeqId, ActorId client, int key, int val)459                    : base()460                {461                    this.Predecessor = pred;462                    this.NextSeqId = nextSeqId;463                    this.Client = client;464                    this.Key = key;465                    this.Value = val;466                }467            }468            internal class BackwardAck : Event469            {470                public int NextSeqId;471                public BackwardAck(int nextSeqId)472                    : base()473                {474                    this.NextSeqId = nextSeqId;475                }476            }477            internal class NewPredecessor : Event478            {479                public ActorId Main;480                public ActorId Predecessor;481                public NewPredecessor(ActorId main, ActorId pred)482                    : base()483                {484                    this.Main = main;485                    this.Predecessor = pred;486                }487            }488            internal class NewSuccessor : Event489            {490                public ActorId Main;491                public ActorId Successor;492                public int LastUpdateReceivedSucc;493                public int LastAckSent;494                public NewSuccessor(ActorId main, ActorId succ,495                    int lastUpdateReceivedSucc, int lastAckSent)496                    : base()497                {498                    this.Main = main;499                    this.Successor = succ;500                    this.LastUpdateReceivedSucc = lastUpdateReceivedSucc;501                    this.LastAckSent = lastAckSent;502                }503            }504            internal class NewSuccInfo : Event505            {506                public int LastUpdateReceivedSucc;507                public int LastAckSent;508                public NewSuccInfo(int lastUpdateReceivedSucc, int lastAckSent)509                    : base()510                {511                    this.LastUpdateReceivedSucc = lastUpdateReceivedSucc;512                    this.LastAckSent = lastAckSent;513                }514            }515            internal class ResponseToQuery : Event516            {517                public int Value;518                public ResponseToQuery(int val)519                    : base()520                {521                    this.Value = val;522                }523            }524            internal class ResponseToUpdate : Event525            {526            }527            private class Local : Event528            {529            }530            private int ServerId;531            private bool IsHead;532            private bool IsTail;533            private ActorId Predecessor;534            private ActorId Successor;535            private Dictionary<int, int> KeyValueStore;536            private List<int> History;537            private List<SentLog> SentHistory;538            private int NextSeqId;539            [Start]540            [OnEntry(nameof(InitOnEntry))]541            [OnEventGotoState(typeof(Local), typeof(WaitForRequest))]542            [OnEventDoAction(typeof(PredSucc), nameof(SetupPredSucc))]543            [DeferEvents(typeof(Client.Update), typeof(Client.Query),544                typeof(BackwardAck), typeof(ForwardUpdate))]545            private class Init : State546            {547            }548            private void InitOnEntry(Event e)549            {550                this.ServerId = (e as SetupEvent).Id;551                this.IsHead = (e as SetupEvent).IsHead;552                this.IsTail = (e as SetupEvent).IsTail;553                this.KeyValueStore = new Dictionary<int, int>();554                this.History = new List<int>();555                this.SentHistory = new List<SentLog>();556                this.NextSeqId = 0;557            }558            private void SetupPredSucc(Event e)559            {560                this.Predecessor = (e as PredSucc).Predecessor;561                this.Successor = (e as PredSucc).Successor;562                this.RaiseEvent(new Local());563            }564            [OnEventGotoState(typeof(Client.Update), typeof(ProcessUpdate), nameof(ProcessUpdateAction))]565            [OnEventGotoState(typeof(ForwardUpdate), typeof(ProcessFwdUpdate))]566            [OnEventGotoState(typeof(BackwardAck), typeof(ProcessBckAck))]567            [OnEventDoAction(typeof(Client.Query), nameof(ProcessQueryAction))]568            [OnEventDoAction(typeof(NewPredecessor), nameof(UpdatePredecessor))]569            [OnEventDoAction(typeof(NewSuccessor), nameof(UpdateSuccessor))]570            [OnEventDoAction(typeof(ChainReplicationMaster.BecomeHead), nameof(ProcessBecomeHead))]571            [OnEventDoAction(typeof(ChainReplicationMaster.BecomeTail), nameof(ProcessBecomeTail))]572            [OnEventDoAction(typeof(FailureDetector.Ping), nameof(SendPong))]573            private class WaitForRequest : State574            {575            }576            private void ProcessUpdateAction()577            {578                this.NextSeqId++;579                this.Assert(this.IsHead, "Server {0} is not head", this.ServerId);580            }581            private void ProcessQueryAction(Event e)582            {583                var client = (e as Client.Query).Client;584                var key = (e as Client.Query).Key;585                this.Assert(this.IsTail, "Server {0} is not tail", this.Id);586                if (this.KeyValueStore.ContainsKey(key))587                {588                    this.Monitor<ServerResponseSeqMonitor>(new ServerResponseSeqMonitor.ResponseToQuery(589                        this.Id, key, this.KeyValueStore[key]));590                    this.SendEvent(client, new ResponseToQuery(this.KeyValueStore[key]));591                }592                else593                {594                    this.SendEvent(client, new ResponseToQuery(-1));595                }596            }597            private void ProcessBecomeHead(Event e)598            {599                this.IsHead = true;600                this.Predecessor = this.Id;601                var target = (e as ChainReplicationMaster.BecomeHead).Target;602                this.SendEvent(target, new ChainReplicationMaster.HeadChanged());603            }604            private void ProcessBecomeTail(Event e)605            {606                this.IsTail = true;607                this.Successor = this.Id;608                for (int i = 0; i < this.SentHistory.Count; i++)609                {610                    this.Monitor<ServerResponseSeqMonitor>(new ServerResponseSeqMonitor.ResponseToUpdate(611                        this.Id, this.SentHistory[i].Key, this.SentHistory[i].Value));612                    this.SendEvent(this.SentHistory[i].Client, new ResponseToUpdate());613                    this.SendEvent(this.Predecessor, new BackwardAck(this.SentHistory[i].NextSeqId));614                }615                var target = (e as ChainReplicationMaster.BecomeTail).Target;616                this.SendEvent(target, new ChainReplicationMaster.TailChanged());617            }618            private void SendPong(Event e)619            {620                var target = (e as FailureDetector.Ping).Target;621                this.SendEvent(target, new FailureDetector.Pong());622            }623            private void UpdatePredecessor(Event e)624            {625                var main = (e as NewPredecessor).Main;626                this.Predecessor = (e as NewPredecessor).Predecessor;627                if (this.History.Count > 0)628                {629                    if (this.SentHistory.Count > 0)630                    {631                        this.SendEvent(main, new NewSuccInfo(632                            this.History[this.History.Count - 1],633                            this.SentHistory[0].NextSeqId));634                    }635                    else636                    {637                        this.SendEvent(main, new NewSuccInfo(638                            this.History[this.History.Count - 1],639                            this.History[this.History.Count - 1]));640                    }641                }642            }643            private void UpdateSuccessor(Event e)644            {645                var main = (e as NewSuccessor).Main;646                this.Successor = (e as NewSuccessor).Successor;647                var lastUpdateReceivedSucc = (e as NewSuccessor).LastUpdateReceivedSucc;648                var lastAckSent = (e as NewSuccessor).LastAckSent;649                if (this.SentHistory.Count > 0)650                {651                    for (int i = 0; i < this.SentHistory.Count; i++)652                    {653                        if (this.SentHistory[i].NextSeqId > lastUpdateReceivedSucc)654                        {655                            this.SendEvent(this.Successor, new ForwardUpdate(this.Id, this.SentHistory[i].NextSeqId,656                                this.SentHistory[i].Client, this.SentHistory[i].Key, this.SentHistory[i].Value));657                        }658                    }659                    int tempIndex = -1;660                    for (int i = this.SentHistory.Count - 1; i >= 0; i--)661                    {662                        if (this.SentHistory[i].NextSeqId == lastAckSent)663                        {664                            tempIndex = i;665                        }666                    }667                    for (int i = 0; i < tempIndex; i++)668                    {669                        this.SendEvent(this.Predecessor, new BackwardAck(this.SentHistory[0].NextSeqId));670                        this.SentHistory.RemoveAt(0);671                    }672                }673                this.SendEvent(main, new ChainReplicationMaster.Success());674            }675            [OnEntry(nameof(ProcessUpdateOnEntry))]676            [OnEventGotoState(typeof(Local), typeof(WaitForRequest))]677            private class ProcessUpdate : State678            {679            }680            private void ProcessUpdateOnEntry(Event e)681            {682                var client = (e as Client.Update).Client;683                var key = (e as Client.Update).Key;684                var value = (e as Client.Update).Value;685                if (this.KeyValueStore.ContainsKey(key))686                {687                    this.KeyValueStore[key] = value;688                }689                else690                {691                    this.KeyValueStore.Add(key, value);692                }693                this.History.Add(this.NextSeqId);694                this.Monitor<InvariantMonitor>(695                    new InvariantMonitor.HistoryUpdate(this.Id, new List<int>(this.History)));696                this.SentHistory.Add(new SentLog(this.NextSeqId, client, key, value));697                this.Monitor<InvariantMonitor>(698                    new InvariantMonitor.SentUpdate(this.Id, new List<SentLog>(this.SentHistory)));699                this.SendEvent(this.Successor, new ForwardUpdate(this.Id, this.NextSeqId, client, key, value));700                this.RaiseEvent(new Local());701            }702            [OnEntry(nameof(ProcessFwdUpdateOnEntry))]703            [OnEventGotoState(typeof(Local), typeof(WaitForRequest))]704            private class ProcessFwdUpdate : State705            {706            }707            private void ProcessFwdUpdateOnEntry(Event e)708            {709                var pred = (e as ForwardUpdate).Predecessor;710                var nextSeqId = (e as ForwardUpdate).NextSeqId;711                var client = (e as ForwardUpdate).Client;712                var key = (e as ForwardUpdate).Key;713                var value = (e as ForwardUpdate).Value;714                if (pred.Equals(this.Predecessor))715                {716                    this.NextSeqId = nextSeqId;717                    if (this.KeyValueStore.ContainsKey(key))718                    {719                        this.KeyValueStore[key] = value;720                    }721                    else722                    {723                        this.KeyValueStore.Add(key, value);724                    }725                    if (!this.IsTail)726                    {727                        this.History.Add(nextSeqId);728                        this.Monitor<InvariantMonitor>(729                            new InvariantMonitor.HistoryUpdate(this.Id, new List<int>(this.History)));730                        this.SentHistory.Add(new SentLog(this.NextSeqId, client, key, value));731                        this.Monitor<InvariantMonitor>(732                            new InvariantMonitor.SentUpdate(this.Id, new List<SentLog>(this.SentHistory)));733                        this.SendEvent(this.Successor, new ForwardUpdate(this.Id, this.NextSeqId, client, key, value));734                    }735                    else736                    {737                        if (!this.IsHead)738                        {739                            this.History.Add(nextSeqId);740                        }741                        this.Monitor<ServerResponseSeqMonitor>(new ServerResponseSeqMonitor.ResponseToUpdate(742                            this.Id, key, value));743                        this.SendEvent(client, new ResponseToUpdate());744                        this.SendEvent(this.Predecessor, new BackwardAck(nextSeqId));745                    }746                }747                this.RaiseEvent(new Local());748            }749            [OnEntry(nameof(ProcessBckAckOnEntry))]750            [OnEventGotoState(typeof(Local), typeof(WaitForRequest))]751            private class ProcessBckAck : State752            {753            }754            private void ProcessBckAckOnEntry(Event e)755            {756                var nextSeqId = (e as BackwardAck).NextSeqId;757                this.RemoveItemFromSent(nextSeqId);758                if (!this.IsHead)759                {760                    this.SendEvent(this.Predecessor, new BackwardAck(nextSeqId));761                }762                this.RaiseEvent(new Local());763            }764            private void RemoveItemFromSent(int seqId)765            {766                int removeIdx = -1;767                for (int i = this.SentHistory.Count - 1; i >= 0; i--)768                {769                    if (seqId == this.SentHistory[i].NextSeqId)770                    {771                        removeIdx = i;772                    }773                }774                if (removeIdx != -1)775                {776                    this.SentHistory.RemoveAt(removeIdx);777                }778            }779        }780        private class Client : StateMachine781        {782            internal class SetupEvent : Event783            {784                public int Id;785                public ActorId HeadNode;786                public ActorId TailNode;787                public int Value;788                public SetupEvent(int id, ActorId head, ActorId tail, int val)789                    : base()790                {791                    this.Id = id;792                    this.HeadNode = head;793                    this.TailNode = tail;794                    this.Value = val;795                }796            }797            internal class UpdateHeadTail : Event798            {799                public ActorId Head;800                public ActorId Tail;801                public UpdateHeadTail(ActorId head, ActorId tail)802                    : base()803                {804                    this.Head = head;805                    this.Tail = tail;806                }807            }808            internal class Update : Event809            {810                public ActorId Client;811                public int Key;812                public int Value;813                public Update(ActorId client, int key, int value)814                    : base()815                {...

UpdateHeadTail

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Actors.BugFinding.Tests;5{6    {7        static void Main(string[] args)8        {9            var config = Configuration.Create();10            config.MaxSchedulingSteps = 100;11            config.MaxFairSchedulingSteps = 100;12            var runtime = RuntimeFactory.Create(config);13            runtime.CreateActor(typeof(PredSucc));14            runtime.Start();15            Console.ReadLine();16        }17    }18}19using System;20using System.Threading.Tasks;21using Microsoft.Coyote.Actors;22using Microsoft.Coyote.Actors.BugFinding.Tests;23{24    {25        static void Main(string[] args)26        {27            var config = Configuration.Create();28            config.MaxSchedulingSteps = 100;29            config.MaxFairSchedulingSteps = 100;30            var runtime = RuntimeFactory.Create(config);31            runtime.CreateActor(typeof(PredSucc));32            runtime.Start();33            Console.ReadLine();34        }35    }36}37using System;38using System.Threading.Tasks;39using Microsoft.Coyote.Actors;40using Microsoft.Coyote.Actors.BugFinding.Tests;41{42    {43        static void Main(string[] args)44        {45            var config = Configuration.Create();46            config.MaxSchedulingSteps = 100;47            config.MaxFairSchedulingSteps = 100;48            var runtime = RuntimeFactory.Create(config);49            runtime.CreateActor(typeof(PredSucc));50            runtime.Start();51            Console.ReadLine();52        }53    }54}55using System;56using System.Threading.Tasks;57using Microsoft.Coyote.Actors;58using Microsoft.Coyote.Actors.BugFinding.Tests;59{60    {61        static void Main(string[] args)62        {63            var config = Configuration.Create();64            config.MaxSchedulingSteps = 100;

UpdateHeadTail

Using AI Code Generation

1using Microsoft.Coyote.Actors.BugFinding.Tests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8{9static void Main(string[] args)10{11PredSucc predSucc = new PredSucc();12int a = 0;13int b = 0;14predSucc.UpdateHeadTail(ref a, ref b);15}16}17}18{19{20public void UpdateHeadTail(ref int head, ref int tail)21{22tail = head;23head = tail;24}25}26}

UpdateHeadTail

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors.BugFinding.Tests;5{6    {7        static void Main(string[] args)8        {9            var runtime = RuntimeFactory.Create();10            runtime.CreateActor(typeof(PredSucc), new ActorId("predsucc"));11            runtime.Wait();12        }13    }14}15using System;16using Microsoft.Coyote.Actors;17using Microsoft.Coyote;18using Microsoft.Coyote.Actors.BugFinding.Tests;19{20    {21        static void Main(string[] args)22        {23            var runtime = RuntimeFactory.Create();24            runtime.CreateActor(typeof(PredSucc), new ActorId("predsucc"));25            runtime.Wait();26        }27    }28}29using System;30using Microsoft.Coyote.Actors;31using Microsoft.Coyote;32using Microsoft.Coyote.Actors.BugFinding.Tests;33{34    {35        static void Main(string[] args)36        {37            var runtime = RuntimeFactory.Create();38            runtime.CreateActor(typeof(PredSucc), new ActorId("predsucc"));39            runtime.Wait();40        }41    }42}43using System;44using Microsoft.Coyote.Actors;45using Microsoft.Coyote;46using Microsoft.Coyote.Actors.BugFinding.Tests;47{48    {49        static void Main(string[] args)50        {51            var runtime = RuntimeFactory.Create();52            runtime.CreateActor(typeof(PredSucc), new ActorId("predsucc"));53            runtime.Wait();54        }55    }56}57using System;58using Microsoft.Coyote.Actors;59using Microsoft.Coyote;60using Microsoft.Coyote.Actors.BugFinding.Tests;61{

UpdateHeadTail

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding.Tests;3{4    {5        private ActorId head;6        private ActorId tail;7        protected override async Task OnInitializeAsync(Event initialEvent)8        {9            this.head = this.CreateActor(typeof(Head));10            this.tail = this.CreateActor(typeof(Tail));11            await this.SendEventAsync(this.head, new UpdateHeadTail(this.head, this.tail));12            await this.SendEventAsync(this.tail, new UpdateHeadTail(this.head, this.tail));13        }14    }15}16using Microsoft.Coyote.Actors;17using Microsoft.Coyote.Actors.BugFinding.Tests;18{19    {20        private ActorId head;21        private ActorId tail;22        protected override async Task OnInitializeAsync(Event initialEvent)23        {24            this.head = this.CreateActor(typeof(Head));25            this.tail = this.CreateActor(typeof(Tail));26            await this.SendEventAsync(this.head, new UpdateHeadTail(this.head, this.tail));27            await this.SendEventAsync(this.tail, new UpdateHeadTail(this.head, this.tail));28        }29    }30}31using Microsoft.Coyote.Actors;32using Microsoft.Coyote.Actors.BugFinding.Tests;33{34    {35        private ActorId head;36        private ActorId tail;37        protected override async Task OnInitializeAsync(Event initialEvent)38        {39            this.head = this.CreateActor(typeof(Head));40            this.tail = this.CreateActor(typeof(Tail));41            await this.SendEventAsync(this.head, new UpdateHeadTail(this.head, this.tail));42            await this.SendEventAsync(this.tail, new UpdateHeadTail(this.head, this.tail));43        }44    }45}

UpdateHeadTail

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Actors.BugFinding.Tests;5{6    {7        private static async Task Main(string[] args)8        {9            var runtime = RuntimeFactory.Create();10            var predSucc = await runtime.CreateActorAsync(typeof(PredSucc));11            await runtime.SendEventAsync(predSucc, new UpdateHeadTail(1, 2));12        }13    }14}15using System;16using System.Threading.Tasks;17using Microsoft.Coyote.Actors;18using Microsoft.Coyote.Actors.BugFinding.Tests;19{20    {21        private static async Task Main(string[] args)22        {23            var runtime = RuntimeFactory.Create();24            var predSucc = await runtime.CreateActorAsync(typeof(PredSucc));25            await runtime.SendEventAsync(predSucc, new UpdateHeadTail(1, 2));26        }27    }28}29using System;30using System.Threading.Tasks;31using Microsoft.Coyote.Actors;32using Microsoft.Coyote.Actors.BugFinding.Tests;33{34    {35        private static async Task Main(string[] args)36        {37            var runtime = RuntimeFactory.Create();38            var predSucc = await runtime.CreateActorAsync(typeof(PredSucc));39            await runtime.SendEventAsync(predSucc, new UpdateHeadTail(1, 2));40        }41    }42}43using System;44using System.Threading.Tasks;45using Microsoft.Coyote.Actors;46using Microsoft.Coyote.Actors.BugFinding.Tests;47{48    {49        private static async Task Main(string[] args)50        {51            var runtime = RuntimeFactory.Create();52            var predSucc = await runtime.CreateActorAsync(typeof(PredSucc));53            await runtime.SendEventAsync(predSucc, new UpdateHeadTail(

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.