Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use NodeFailed method of Microsoft.Coyote.Samples.Monitors.Config class

Best Coyote code snippet using Microsoft.Coyote.Samples.Monitors.Config.NodeFailed

FailureDetector.cs

Source:FailureDetector.cs

...17            {18                this.Nodes = nodes;19            }20        }21        internal class NodeFailed : Event22        {23            public ActorId Node;24            public NodeFailed(ActorId node)25            {26                this.Node = node;27            }28        }29        private class TimerCancelled : Event { }30        private class RoundDone : Event { }31        private class Unit : Event { }32        /// <summary>33        /// Nodes to be monitored.34        /// </summary>35        private HashSet<ActorId> Nodes;36        /// <summary>37        /// Set of registered clients.38        /// </summary>39        private HashSet<ActorId> Clients;40        /// <summary>41        /// Number of made 'Ping' attempts.42        /// </summary>43        private int Attempts;44        /// <summary>45        /// Set of alive nodes.46        /// </summary>47        private HashSet<ActorId> Alive;48        /// <summary>49        /// Collected responses in one round.50        /// </summary>51        private HashSet<ActorId> Responses;52        /// <summary>53        /// Reference to the timer machine.54        /// </summary>55        private ActorId Timer;56        [Start]57        [OnEntry(nameof(InitOnEntry))]58        [OnEventDoAction(typeof(Driver.RegisterClient), nameof(RegisterClientAction))]59        [OnEventDoAction(typeof(Driver.UnregisterClient), nameof(UnregisterClientAction))]60        [OnEventPushState(typeof(Unit), typeof(SendPing))]61        private class Init : State { }62        private void InitOnEntry(Event e)63        {64            var nodes = (e as Config).Nodes;65            this.Nodes = new HashSet<ActorId>(nodes);66            this.Clients = new HashSet<ActorId>();67            this.Alive = new HashSet<ActorId>();68            this.Responses = new HashSet<ActorId>();69            // Initializes the alive set to contain all available nodes.70            foreach (var node in this.Nodes)71            {72                this.Alive.Add(node);73            }74            // Initializes the timer.75            this.Timer = this.CreateActor(typeof(Timer), new Timer.Config(this.Id));76            // Transitions to the 'SendPing' state after everything has initialized.77            this.RaiseEvent(new Unit());78        }79        private void RegisterClientAction(Event e)80        {81            var client = (e as Driver.RegisterClient).Client;82            this.Clients.Add(client);83        }84        private void UnregisterClientAction(Event e)85        {86            var client = (e as Driver.UnregisterClient).Client;87            if (this.Clients.Contains(client))88            {89                this.Clients.Remove(client);90            }91        }92        [OnEntry(nameof(SendPingOnEntry))]93        [OnEventGotoState(typeof(RoundDone), typeof(Reset))]94        [OnEventPushState(typeof(TimerCancelled), typeof(WaitForCancelResponse))]95        [OnEventDoAction(typeof(Node.Pong), nameof(PongAction))]96        [OnEventDoAction(typeof(Timer.TimeoutEvent), nameof(TimeoutAction))]97        private class SendPing : State { }98        private void SendPingOnEntry()99        {100            foreach (var node in this.Nodes)101            {102                // Sends a 'Ping' event to any machine that has not responded.103                if (this.Alive.Contains(node) && !this.Responses.Contains(node))104                {105                    this.Monitor<Safety>(new Safety.Ping(node));106                    this.SendEvent(node, new Node.Ping(this.Id));107                }108            }109            // Starts the timer with a given timeout value. Note that in this sample,110            // the timeout value is not actually used, because the timer is abstracted111            // away using Coyote to enable systematic testing (i.e. timeouts are triggered112            // nondeterministically). In production, this model timer machine will be113            // replaced by a real timer.114            this.SendEvent(this.Timer, new Timer.StartTimerEvent(100));115        }116        /// <summary>117        /// This action is triggered whenever a node replies with a 'Pong' event.118        /// </summary>119        private void PongAction(Event e)120        {121            var node = (e as Node.Pong).Node;122            if (this.Alive.Contains(node))123            {124                this.Responses.Add(node);125                // Checks if the status of alive nodes has changed.126                if (this.Responses.Count == this.Alive.Count)127                {128                    this.SendEvent(this.Timer, new Timer.CancelTimerEvent());129                    this.RaiseEvent(new TimerCancelled());130                }131            }132        }133        private void TimeoutAction()134        {135            // One attempt is done for this round.136            this.Attempts++;137            // Each round has a maximum number of 2 attempts.138            if (this.Responses.Count < this.Alive.Count && this.Attempts < 2)139            {140                // Retry by looping back to same state.141                this.RaiseGotoStateEvent<SendPing>();142                return;143            }144            foreach (var node in this.Nodes)145            {146                if (this.Alive.Contains(node) && !this.Responses.Contains(node))147                {148                    this.Alive.Remove(node);149                    // Send failure notification to any clients.150                    foreach (var client in this.Clients)151                    {152                        this.SendEvent(client, new NodeFailed(node));153                    }154                }155            }156            this.RaiseEvent(new RoundDone());157        }158        [OnEventDoAction(typeof(Timer.CancelSuccess), nameof(CancelSuccessAction))]159        [OnEventDoAction(typeof(Timer.CancelFailure), nameof(CancelFailure))]160        [DeferEvents(typeof(Timer.TimeoutEvent), typeof(Node.Pong))]161        private class WaitForCancelResponse : State { }162        private void CancelSuccessAction()163        {164            this.RaiseEvent(new RoundDone());165        }166        private void CancelFailure()...

Driver.cs

Source:Driver.cs

...62            this.SendEvent(this.FailureDetector, new RegisterClient(this.Id));63            this.RaiseGotoStateEvent<InjectFailures>();64        }65        [OnEntry(nameof(InjectFailuresOnEntry))]66        [OnEventDoAction(typeof(FailureDetector.NodeFailed), nameof(NodeFailedAction))]67        private class InjectFailures : State { }68        /// <summary>69        /// Injects failures (modelled with the special Coyote event 'halt').70        /// </summary>71        private void InjectFailuresOnEntry()72        {73            foreach (var node in this.Nodes)74            {75                this.SendEvent(node, HaltEvent.Instance);76            }77        }78        /// <summary>79        /// Notify liveness monitor of node failure.80        /// </summary>81        private void NodeFailedAction(Event e)82        {83            this.Monitor<Liveness>(e);84        }85    }86}...

NodeFailed

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Threading.Tasks;4using Microsoft.Coyote;5using Microsoft.Coyote.Actors;6using Microsoft.Coyote.Samples;7using Microsoft.Coyote.Samples.Monitors;8using Microsoft.Coyote.Tasks;9{10    {11        public static async Task Main()12        {13            var config = Configuration.Create();14            config.EnableMonitors = true;15            config.Monitors.Add(typeof(Config));16            await Run(config);17        }18        private static async Task Run(Configuration config)19        {20            var runtime = RuntimeFactory.Create(config);21            await runtime.CreateActor(typeof(Node), new ActorId("node1"));22            await runtime.CreateActor(typeof(Node), new ActorId("node2"));23            await runtime.CreateActor(typeof(Node), new ActorId("node3"));24            await runtime.CreateActor(typeof(Node), new ActorId("node4"));25            await runtime.CreateActor(typeof(Node), new ActorId("node5"));26            await runtime.CreateActor(typeof(Node), new ActorId("node6"));27            await runtime.CreateActor(typeof(Node), new ActorId("node7"));28            await runtime.CreateActor(typeof(Node), new ActorId("node8"));29            await runtime.CreateActor(typeof(Node), new ActorId("node9"));30            await runtime.CreateActor(typeof(Node), new ActorId("node10"));31            await runtime.CreateActor(typeof(Node), new ActorId("node11"));32            await runtime.CreateActor(typeof(Node), new ActorId("node12"));33            await runtime.CreateActor(typeof(Node), new ActorId("node13"));34            await runtime.CreateActor(typeof(Node), new ActorId("node14"));35            await runtime.CreateActor(typeof(Node), new ActorId("node15"));36            await runtime.CreateActor(typeof(Node), new ActorId("node16"));37            await runtime.CreateActor(typeof(Node), new ActorId("node17"));38            await runtime.CreateActor(typeof(Node), new ActorId("node18"));39            await runtime.CreateActor(typeof(Node), new ActorId("node19"));40            await runtime.CreateActor(typeof(Node), new ActorId("node20"));41            await runtime.CreateActor(typeof(Node), new ActorId("node21"));42            await runtime.CreateActor(typeof(Node), new ActorId("node22"));43            await runtime.CreateActor(typeof(Node), new ActorId("node23"));44            await runtime.CreateActor(typeof(Node), new ActorId("node24"));45            await runtime.CreateActor(typeof(Node), new ActorId

NodeFailed

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote;7using Microsoft.Coyote.Samples.Monitors.Config;8{9    {10        static void Main(string[] args)11        {12            NodeFailed nodeFailed = new NodeFailed();13            nodeFailed.NodeFailedEvent += NodeFailed_NodeFailedEvent;14            Config config = new Config();15            config.RegisterMonitor(nodeFailed);16            Runtime runtime = RuntimeFactory.Create(config);17            runtime.CreateActor(typeof(Actor1));18            runtime.CreateActor(typeof(Actor2));19            runtime.Start();20        }21        private static void NodeFailed_NodeFailedEvent(object sender, NodeFailedEventArgs e)22        {23            Console.WriteLine("Node {0} failed. Reason: {1}", e.NodeId, e.Reason);24        }25    }26}27using System;28using System.Collections.Generic;29using System.Linq;30using System.Text;31using System.Threading.Tasks;32using Microsoft.Coyote;33using Microsoft.Coyote.Samples.Monitors.Config;34{35    {36        static void Main(string[] args)37        {38            Config config = new Config();39            config.RegisterMonitor<NodeFailed>();40            Runtime runtime = RuntimeFactory.Create(config);41            runtime.CreateActor(typeof(Actor1));42            runtime.CreateActor(typeof(Actor2));43            runtime.Start();44        }45    }46}47using System;48using System.Collections.Generic;49using System.Linq;50using System.Text;51using System.Threading.Tasks;52using Microsoft.Coyote;53using Microsoft.Coyote.Samples.Monitors.Config;54{55    {56        static void Main(string[] args)57        {58            Config config = new Config();59            config.RegisterMonitor(typeof(NodeFailed));60            Runtime runtime = RuntimeFactory.Create(config);61            runtime.CreateActor(typeof(Actor1));62            runtime.CreateActor(typeof(Actor2));63            runtime.Start();64        }65    }66}67using System;68using System.Collections.Generic;69using System.Linq;70using System.Text;71using System.Threading.Tasks;

NodeFailed

Using AI Code Generation

1using Microsoft.Coyote;2using Microsoft.Coyote.Samples.Monitors;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            Config config = new Config();10            config.NodeFailed += (sender, e) => Console.WriteLine($"Node {e.NodeId} failed.");11            config.MaxSteps = 1000;12            config.MaxSchedulingSteps = 1000;13            config.MaxFairSchedulingSteps = 1000;14            config.MaxFairSchedulingSteps = 1000;

NodeFailed

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Samples.Monitors;6using Microsoft.Coyote.Samples.Shared;7using Microsoft.Coyote.Samples.Shared.Logging;8using Microsoft.Coyote.Samples.Shared.Logging.Events;9{10    {11        private static async Task Main(string[] args)12        {13            Config.RegisterMonitor<NodeFailureMonitor>();14            Config.NodeFailed += OnNodeFailed;15            using (var runtime = RuntimeFactory.Create())16            {17                var node = runtime.CreateActor(typeof(Node));18                runtime.SendEvent(node, new Start());19                await runtime.WaitCompletionAsync(node);20            }21        }22        private static void OnNodeFailed(object sender, NodeFailedEventArgs e)23        {24            Log.Write($"Node '{e.NodeId}' failed.");25        }26    }27}28using System;29using System.Threading.Tasks;30using Microsoft.Coyote;31using Microsoft.Coyote.Actors;32using Microsoft.Coyote.Samples.Monitors;33using Microsoft.Coyote.Samples.Shared;34using Microsoft.Coyote.Samples.Shared.Logging;35using Microsoft.Coyote.Samples.Shared.Logging.Events;36{37    {38        private static async Task Main(string[] args)39        {40            Config.RegisterMonitor<NodeFailureMonitor>();41            Config.OnFailure += OnFailure;42            using (var runtime = RuntimeFactory.Create())43            {44                var node = runtime.CreateActor(typeof(Node));45                runtime.SendEvent(node, new Start());46                await runtime.WaitCompletionAsync(node);47            }48        }49        private static void OnFailure(object sender,

NodeFailed

Using AI Code Generation

1Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>2{3    Console.WriteLine($"+ Node {e.NodeId} failed");4};5Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>6{7    Console.WriteLine($"+ Node {e.NodeId} failed");8};9Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>10{11    Console.WriteLine($"+ Node {e.NodeId} failed");12};13Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>14{15    Console.WriteLine($"+ Node {e.NodeId} failed");16};17Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>18{19    Console.WriteLine($"+ Node {e.NodeId} failed");20};21Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>22{23    Console.WriteLine($"+ Node {e.NodeId} failed");24};25Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>26{27    Console.WriteLine($"+ Node {e.NodeId} failed");28};29Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>30{31    Console.WriteLine($"+ Node {e.NodeId} failed");32};33Microsoft.Coyote.Samples.Monitors.Config.NodeFailed += (sender, e) =>34{35    Console.WriteLine($"+ Node {

NodeFailed

Using AI Code Generation

1{2    public Config()3    {4        this.OnEvent<NodeFailed>(this.NodeFailed);5    }6    private void NodeFailed(Event e)7    {8    }9}10{11    public Config()12    {13        this.OnEvent<NodeFailed>(this.NodeFailed);14    }15    private async Task NodeFailed(Event e)16    {17    }18}19{20    public Config()21    {22        this.OnEvent<NodeFailed>(this.NodeFailed);23    }24    private async Task NodeFailed(Event e)25    {26    }27}28{29    public Config()30    {31        this.OnEvent<NodeFailed>(this.NodeFailed);32    }33    private async Task NodeFailed(Event e)34    {35    }36}37{38    public Config()39    {40        this.OnEvent<NodeFailed>(this.NodeFailed);41    }42    private async Task NodeFailed(Event e)43    {44    }45}46{47    public Config()48    {49        this.OnEvent<NodeFailed>(this.NodeFailed);50    }51    private async Task NodeFailed(Event e)52    {

NodeFailed

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Samples.Monitors;6{7    {8        private static async Task Main(string[] args)9        {10            Config config = Configuration.Create();11            config.SchedulingIterations = 100;12            config.SchedulingStrategy = SchedulingStrategy.DFS;13            config.SchedulingRandomSeed = 1;14            config.SchedulingMaxSteps = 100;15            config.SchedulingVerbosity = 1;16            config.SchedulingMaxFairSchedulesToExplore = 100;17            config.SchedulingFairSchedulingIterations = 100;18            config.EnableCycleDetection = true;19            config.MaxFairSchedulingSteps = 100;20            config.EnableCycleDetection = true;21            config.EnableDataRaceDetection = true;22            config.EnableIntegerOverflowDetection = true;23            config.EnableDeadlockDetection = true;24            config.EnableOperationCanceledExceptionSupport = true;25            config.EnableObjectDisposedExceptionSupport = true;26            config.EnableIndexOutOfRangeExceptionSupport = true;27            config.EnableNullReferenceExceptionSupport = true;28            config.EnableDivideByZeroExceptionSupport = true;29            config.EnableActorDebugging = true;30            config.EnableActorLogging = true;31            config.EnableActorTracing = true;32            config.EnableStateGraph = true;33            config.EnableStateGraphScheduling = true;

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.