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

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

ChainReplicationTests.cs

Source:ChainReplicationTests.cs

...91                    else92                    {93                        succ = this.Servers[this.NumOfServers - 1];94                    }95                    this.SendEvent(this.Servers[i], new ChainReplicationServer.PredSucc(pred, succ));96                }97                this.Clients.Add(this.CreateActor(typeof(Client),98                    new Client.SetupEvent(0, this.Servers[0], this.Servers[this.NumOfServers - 1], 1)));99                this.Clients.Add(this.CreateActor(typeof(Client),100                    new Client.SetupEvent(1, this.Servers[0], this.Servers[this.NumOfServers - 1], 100)));101                this.CreateActor(typeof(ChainReplicationMaster),102                    new ChainReplicationMaster.SetupEvent(this.Servers, this.Clients));103                this.SendEvent(this.Id, HaltEvent.Instance);104                return Task.CompletedTask;105            }106        }107        private class FailureDetector : StateMachine108        {109            internal class SetupEvent : Event110            {111                public ActorId Main;112                public List<ActorId> Servers;113                public SetupEvent(ActorId main, List<ActorId> servers)114                    : base()115                {116                    this.Main = main;117                    this.Servers = servers;118                }119            }120            internal class FailureDetected : Event121            {122                public ActorId Server;123                public FailureDetected(ActorId server)124                    : base()125                {126                    this.Server = server;127                }128            }129            internal class FailureCorrected : Event130            {131                public List<ActorId> Servers;132                public FailureCorrected(List<ActorId> servers)133                    : base()134                {135                    this.Servers = servers;136                }137            }138            internal class Ping : Event139            {140                public ActorId Target;141                public Ping(ActorId target)142                    : base()143                {144                    this.Target = target;145                }146            }147            internal class Pong : Event148            {149            }150            private class InjectFailure : Event151            {152            }153            private class Local : Event154            {155            }156            private ActorId Main;157            private List<ActorId> Servers;158            private int CheckNodeIdx;159            private int Failures;160            [Start]161            [OnEntry(nameof(InitOnEntry))]162            [OnEventGotoState(typeof(Local), typeof(StartMonitoring))]163            private class Init : State164            {165            }166            private void InitOnEntry(Event e)167            {168                this.Main = (e as SetupEvent).Main;169                this.Servers = (e as SetupEvent).Servers;170                this.CheckNodeIdx = 0;171                this.Failures = 100;172                this.RaiseEvent(new Local());173            }174            [OnEntry(nameof(StartMonitoringOnEntry))]175            [OnEventGotoState(typeof(Pong), typeof(StartMonitoring), nameof(HandlePong))]176            [OnEventGotoState(typeof(InjectFailure), typeof(HandleFailure))]177            private class StartMonitoring : State178            {179            }180            private void StartMonitoringOnEntry()181            {182                if (this.Failures < 1)183                {184                    this.RaiseHaltEvent();185                }186                else187                {188                    this.SendEvent(this.Servers[this.CheckNodeIdx], new Ping(this.Id));189                    if (this.Servers.Count > 1)190                    {191                        if (this.RandomBoolean())192                        {193                            this.SendEvent(this.Id, new InjectFailure());194                        }195                        else196                        {197                            this.SendEvent(this.Id, new Pong());198                        }199                    }200                    else201                    {202                        this.SendEvent(this.Id, new Pong());203                    }204                    this.Failures--;205                }206            }207            private void HandlePong()208            {209                this.CheckNodeIdx++;210                if (this.CheckNodeIdx == this.Servers.Count)211                {212                    this.CheckNodeIdx = 0;213                }214            }215            [OnEntry(nameof(HandleFailureOnEntry))]216            [OnEventGotoState(typeof(FailureCorrected), typeof(StartMonitoring), nameof(ProcessFailureCorrected))]217            [IgnoreEvents(typeof(Pong), typeof(InjectFailure))]218            private class HandleFailure : State219            {220            }221            private void HandleFailureOnEntry()222            {223                this.SendEvent(this.Main, new FailureDetected(this.Servers[this.CheckNodeIdx]));224            }225            private void ProcessFailureCorrected(Event e)226            {227                this.CheckNodeIdx = 0;228                this.Servers = (e as FailureCorrected).Servers;229            }230        }231        private class ChainReplicationMaster : StateMachine232        {233            internal class SetupEvent : Event234            {235                public List<ActorId> Servers;236                public List<ActorId> Clients;237                public SetupEvent(List<ActorId> servers, List<ActorId> clients)238                    : base()239                {240                    this.Servers = servers;241                    this.Clients = clients;242                }243            }244            internal class BecomeHead : Event245            {246                public ActorId Target;247                public BecomeHead(ActorId target)248                    : base()249                {250                    this.Target = target;251                }252            }253            internal class BecomeTail : Event254            {255                public ActorId Target;256                public BecomeTail(ActorId target)257                    : base()258                {259                    this.Target = target;260                }261            }262            internal class Success : Event263            {264            }265            internal class HeadChanged : Event266            {267            }268            internal class TailChanged : Event269            {270            }271            private class HeadFailed : Event272            {273            }274            private class TailFailed : Event275            {276            }277            private class ServerFailed : Event278            {279            }280            private class FixSuccessor : Event281            {282            }283            private class FixPredecessor : Event284            {285            }286            private class Local : Event287            {288            }289            private class Done : Event290            {291            }292            private List<ActorId> Servers;293            private List<ActorId> Clients;294            private ActorId FailureDetector;295            private ActorId Head;296            private ActorId Tail;297            private int FaultyNodeIndex;298            private int LastUpdateReceivedSucc;299            private int LastAckSent;300            [Start]301            [OnEntry(nameof(InitOnEntry))]302            [OnEventGotoState(typeof(Local), typeof(WaitForFailure))]303            private class Init : State304            {305            }306            private void InitOnEntry(Event e)307            {308                this.Servers = (e as SetupEvent).Servers;309                this.Clients = (e as SetupEvent).Clients;310                this.FailureDetector = this.CreateActor(311                    typeof(FailureDetector),312                    new FailureDetector.SetupEvent(this.Id, this.Servers));313                this.Head = this.Servers[0];314                this.Tail = this.Servers[this.Servers.Count - 1];315                this.RaiseEvent(new Local());316            }317            [OnEventGotoState(typeof(HeadFailed), typeof(CorrectHeadFailure))]318            [OnEventGotoState(typeof(TailFailed), typeof(CorrectTailFailure))]319            [OnEventGotoState(typeof(ServerFailed), typeof(CorrectServerFailure))]320            [OnEventDoAction(typeof(FailureDetector.FailureDetected), nameof(CheckWhichNodeFailed))]321            private class WaitForFailure : State322            {323            }324            private void CheckWhichNodeFailed(Event e)325            {326                this.Assert(this.Servers.Count > 1, "All nodes have failed.");327                var failedServer = (e as FailureDetector.FailureDetected).Server;328                if (this.Head.Equals(failedServer))329                {330                    this.RaiseEvent(new HeadFailed());331                }332                else if (this.Tail.Equals(failedServer))333                {334                    this.RaiseEvent(new TailFailed());335                }336                else337                {338                    for (int i = 0; i < this.Servers.Count - 1; i++)339                    {340                        if (this.Servers[i].Equals(failedServer))341                        {342                            this.FaultyNodeIndex = i;343                        }344                    }345                    this.RaiseEvent(new ServerFailed());346                }347            }348            [OnEntry(nameof(CorrectHeadFailureOnEntry))]349            [OnEventGotoState(typeof(Done), typeof(WaitForFailure), nameof(UpdateFailureDetector))]350            [OnEventDoAction(typeof(HeadChanged), nameof(UpdateClients))]351            private class CorrectHeadFailure : State352            {353            }354            private void CorrectHeadFailureOnEntry()355            {356                this.Servers.RemoveAt(0);357                this.Monitor<InvariantMonitor>(358                    new InvariantMonitor.UpdateServers(this.Servers));359                this.Monitor<ServerResponseSeqMonitor>(360                    new ServerResponseSeqMonitor.UpdateServers(this.Servers));361                this.Head = this.Servers[0];362                this.SendEvent(this.Head, new BecomeHead(this.Id));363            }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            }...

PredSucc

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding;3using Microsoft.Coyote.Actors.BugFinding.Tests;4using System;5using System.Threading.Tasks;6{7    {8        private int x;9        [OnEventDoAction(typeof(UnitEvent), nameof(InitOnEntry))]10        [OnEventDoAction(typeof(ConfigureEvent), nameof(Configure))]11        [OnEventDoAction(typeof(PredSuccEvent), nameof(PredSucc))]12        {13        }14        private void InitOnEntry()15        {16            this.x = 0;17            this.RaiseEvent(new ConfigureEvent(1, 1));18        }19        private void Configure()20        {21            this.RaiseEvent(new PredSuccEvent(1, 1));22        }23        private void PredSucc()24        {25            this.x = 0;26            this.RaiseEvent(new UnitEvent());27        }28    }29    {30        public int N;31        public int M;32        public ConfigureEvent(int n, int m)33        {34            this.N = n;35            this.M = m;36        }37    }38    {39        public int N;40        public int M;41        public PredSuccEvent(int n, int m)42        {43            this.N = n;44            this.M = m;45        }46    }47    {48    }49    {50        public static async Task Main(string[] args)51        {52            Configuration config = Configuration.Create().WithTestingIterations(1000);53            await BugFindingEngine.RunBugFindingTestAsync(config, async (r) =>54            {55                BecomeTail becomeTail = r.CreateActor<BecomeTail>();56                r.SendEvent(becomeTail, new UnitEvent());57            });58        }59    }60}61using Microsoft.Coyote.Actors;62using Microsoft.Coyote.Actors.BugFinding;63using Microsoft.Coyote.Actors.BugFinding.Tests;64using System;65using System.Threading.Tasks;66{67    {68        private int x;

PredSucc

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding.Tests;3using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion;4using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion;5using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion;6using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion.TailRecursion;7using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion;8using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion;9using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion;10using Microsoft.Coyote.Actors.BugFinding.Tests.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion.TailRecursion;

PredSucc

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Actors.BugFinding.Tests;4{5    {6        static void Main(string[] args)7        {8            BecomeTail becomeTail = new BecomeTail();9            becomeTail.PredSucc();10        }11    }12}

PredSucc

Using AI Code Generation

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

PredSucc

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding.Tests;3using System;4using System.Threading.Tasks;5{6    {7        private BecomeTail()8        {9            Become(this.PredSucc);10        }11        private async Task PredSucc(Event e)12        {13            if (e is BecomeTailEvent)14            {15                Become(this.PredSucc);16            }17            {18                Become(this.SuccPred);19            }20        }21        private async Task SuccPred(Event e)22        {23            Become(this.PredSucc);24        }25    }26}27using Microsoft.Coyote.Actors;28using Microsoft.Coyote.Actors.BugFinding.Tests;29using System;30using System.Threading.Tasks;31{32    {33        private BecomeTail()34        {35            Become(this.PredSucc);36        }37        private async Task PredSucc(Event e)38        {39            if (e is BecomeTailEvent)40            {41                Become(this.PredSucc);42            }43            {44                Become(this.SuccPred);45            }46        }47        private async Task SuccPred(Event e)48        {49            Become(this.PredSucc);50        }51    }52}53using Microsoft.Coyote.Actors;54using Microsoft.Coyote.Actors.BugFinding.Tests;55using System;56using System.Threading.Tasks;57{58    {59        private BecomeTail()60        {61            Become(this.PredSucc);62        }63        private async Task PredSucc(Event e)64        {65            if (e is BecomeTailEvent)66            {67                Become(this.PredSucc);68            }69            {70                Become(this.SuccPred);71            }72        }73        private async Task SuccPred(Event e)74        {75            Become(this.PredSucc);76        }77    }78}79using Microsoft.Coyote.Actors;

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