How to use FindPredecessor method of Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode class

Best Coyote code snippet using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode.FindPredecessor

ChordTests.cs

Source:ChordTests.cs Github

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...236 this.Node = node;237 this.Key = key;238 }239 }240 internal class FindPredecessor : Event241 {242 public ActorId Sender;243 public FindPredecessor(ActorId sender)244 : base()245 {246 this.Sender = sender;247 }248 }249 internal class FindPredecessorResp : Event250 {251 public ActorId Node;252 public FindPredecessorResp(ActorId node)253 : base()254 {255 this.Node = node;256 }257 }258 internal class QueryId : Event259 {260 public ActorId Sender;261 public QueryId(ActorId sender)262 : base()263 {264 this.Sender = sender;265 }266 }267 internal class QueryIdResp : Event268 {269 public int Id;270 public QueryIdResp(int id)271 : base()272 {273 this.Id = id;274 }275 }276 internal class AskForKeys : Event277 {278 public ActorId Node;279 public int Id;280 public AskForKeys(ActorId node, int id)281 : base()282 {283 this.Node = node;284 this.Id = id;285 }286 }287 internal class AskForKeysResp : Event288 {289 public List<int> Keys;290 public AskForKeysResp(List<int> keys)291 : base()292 {293 this.Keys = keys;294 }295 }296 private class NotifySuccessor : Event297 {298 public ActorId Node;299 public NotifySuccessor(ActorId node)300 : base()301 {302 this.Node = node;303 }304 }305 internal class JoinAck : Event306 {307 }308 internal class Stabilize : Event309 {310 }311 internal class Terminate : Event312 {313 }314 private class Local : Event315 {316 }317 private int NodeId;318 private HashSet<int> Keys;319 private int NumOfIds;320 private Dictionary<int, Finger> FingerTable;321 private ActorId Predecessor;322 private ActorId ManagerId;323 [Start]324 [OnEntry(nameof(InitOnEntry))]325 [OnEventGotoState(typeof(Local), typeof(Waiting))]326 [OnEventDoAction(typeof(SetupEvent), nameof(Setup))]327 [OnEventDoAction(typeof(Join), nameof(JoinCluster))]328 [DeferEvents(typeof(AskForKeys), typeof(NotifySuccessor), typeof(Stabilize))]329 private class Init : State330 {331 }332 private void InitOnEntry()333 {334 this.FingerTable = new Dictionary<int, Finger>();335 }336 private void Setup(Event e)337 {338 this.NodeId = (e as SetupEvent).Id;339 this.Keys = (e as SetupEvent).Keys;340 this.ManagerId = (e as SetupEvent).ManagerId;341 var nodes = (e as SetupEvent).Nodes;342 var nodeIds = (e as SetupEvent).NodeIds;343 this.NumOfIds = (int)Math.Pow(2, nodes.Count);344 for (var idx = 1; idx <= nodes.Count; idx++)345 {346 var start = (this.NodeId + (int)Math.Pow(2, idx - 1)) % this.NumOfIds;347 var end = (this.NodeId + (int)Math.Pow(2, idx)) % this.NumOfIds;348 var nodeId = GetSuccessorNodeId(start, nodeIds);349 this.FingerTable.Add(start, new Finger(start, end, nodes[nodeId]));350 }351 for (var idx = 0; idx < nodeIds.Count; idx++)352 {353 if (nodeIds[idx] == this.NodeId)354 {355 this.Predecessor = nodes[WrapSubtract(idx, 1, nodeIds.Count)];356 break;357 }358 }359 this.RaiseEvent(new Local());360 }361 private void JoinCluster(Event e)362 {363 this.NodeId = (e as Join).Id;364 this.ManagerId = (e as Join).ManagerId;365 this.NumOfIds = (e as Join).NumOfIds;366 var nodes = (e as Join).Nodes;367 var nodeIds = (e as Join).NodeIds;368 for (var idx = 1; idx <= nodes.Count; idx++)369 {370 var start = (this.NodeId + (int)Math.Pow(2, idx - 1)) % this.NumOfIds;371 var end = (this.NodeId + (int)Math.Pow(2, idx)) % this.NumOfIds;372 var nodeId = GetSuccessorNodeId(start, nodeIds);373 this.FingerTable.Add(start, new Finger(start, end, nodes[nodeId]));374 }375 var successor = this.FingerTable[(this.NodeId + 1) % this.NumOfIds].Node;376 this.SendEvent(this.ManagerId, new JoinAck());377 this.SendEvent(successor, new NotifySuccessor(this.Id));378 }379 [OnEventDoAction(typeof(FindSuccessor), nameof(ProcessFindSuccessor))]380 [OnEventDoAction(typeof(FindSuccessorResp), nameof(ProcessFindSuccessorResp))]381 [OnEventDoAction(typeof(FindPredecessor), nameof(ProcessFindPredecessor))]382 [OnEventDoAction(typeof(FindPredecessorResp), nameof(ProcessFindPredecessorResp))]383 [OnEventDoAction(typeof(QueryId), nameof(ProcessQueryId))]384 [OnEventDoAction(typeof(AskForKeys), nameof(SendKeys))]385 [OnEventDoAction(typeof(AskForKeysResp), nameof(UpdateKeys))]386 [OnEventDoAction(typeof(NotifySuccessor), nameof(UpdatePredecessor))]387 [OnEventDoAction(typeof(Stabilize), nameof(ProcessStabilize))]388 [OnEventDoAction(typeof(Terminate), nameof(ProcessTerminate))]389 private class Waiting : State390 {391 }392 private void ProcessFindSuccessor(Event e)393 {394 var sender = (e as FindSuccessor).Sender;395 var key = (e as FindSuccessor).Key;396 if (this.Keys.Contains(key))397 {398 this.SendEvent(sender, new FindSuccessorResp(this.Id, key));399 }400 else if (this.FingerTable.ContainsKey(key))401 {402 this.SendEvent(sender, new FindSuccessorResp(this.FingerTable[key].Node, key));403 }404 else if (this.NodeId.Equals(key))405 {406 this.SendEvent(sender, new FindSuccessorResp(407 this.FingerTable[(this.NodeId + 1) % this.NumOfIds].Node, key));408 }409 else410 {411 int idToAsk = -1;412 foreach (var finger in this.FingerTable)413 {414 if (((finger.Value.Start > finger.Value.End) &&415 (finger.Value.Start <= key || key < finger.Value.End)) ||416 ((finger.Value.Start < finger.Value.End) &&417 finger.Value.Start <= key && key < finger.Value.End))418 {419 idToAsk = finger.Key;420 }421 }422 if (idToAsk < 0)423 {424 idToAsk = (this.NodeId + 1) % this.NumOfIds;425 }426 if (this.FingerTable[idToAsk].Node.Equals(this.Id))427 {428 foreach (var finger in this.FingerTable)429 {430 if (finger.Value.End == idToAsk ||431 finger.Value.End == idToAsk - 1)432 {433 idToAsk = finger.Key;434 break;435 }436 }437 this.Assert(!this.FingerTable[idToAsk].Node.Equals(this.Id), "Cannot locate successor of {0}.", key);438 }439 this.SendEvent(this.FingerTable[idToAsk].Node, new FindSuccessor(sender, key));440 }441 }442 private void ProcessFindPredecessor(Event e)443 {444 var sender = (e as FindPredecessor).Sender;445 if (this.Predecessor != null)446 {447 this.SendEvent(sender, new FindPredecessorResp(this.Predecessor));448 }449 }450 private void ProcessQueryId(Event e)451 {452 var sender = (e as QueryId).Sender;453 this.SendEvent(sender, new QueryIdResp(this.NodeId));454 }455 private void SendKeys(Event e)456 {457 var sender = (e as AskForKeys).Node;458 var senderId = (e as AskForKeys).Id;459 this.Assert(this.Predecessor.Equals(sender), "Predecessor is corrupted.");460 List<int> keysToSend = new List<int>();461 foreach (var key in this.Keys)462 {463 if (key <= senderId)464 {465 keysToSend.Add(key);466 }467 }468 if (keysToSend.Count > 0)469 {470 foreach (var key in keysToSend)471 {472 this.Keys.Remove(key);473 }474 this.SendEvent(sender, new AskForKeysResp(keysToSend));475 }476 }477 private void ProcessStabilize()478 {479 var successor = this.FingerTable[(this.NodeId + 1) % this.NumOfIds].Node;480 this.SendEvent(successor, new FindPredecessor(this.Id));481 foreach (var finger in this.FingerTable)482 {483 if (!finger.Value.Node.Equals(successor))484 {485 this.SendEvent(successor, new FindSuccessor(this.Id, finger.Key));486 }487 }488 }489 private void ProcessFindSuccessorResp(Event e)490 {491 var successor = (e as FindSuccessorResp).Node;492 var key = (e as FindSuccessorResp).Key;493 this.Assert(this.FingerTable.ContainsKey(key), "Finger table of {0} does not contain {1}.", this.NodeId, key);494 this.FingerTable[key] = new Finger(this.FingerTable[key].Start, this.FingerTable[key].End, successor);495 }496 private void ProcessFindPredecessorResp(Event e)497 {498 var successor = (e as FindPredecessorResp).Node;499 if (!successor.Equals(this.Id))500 {501 this.FingerTable[(this.NodeId + 1) % this.NumOfIds] = new Finger(502 this.FingerTable[(this.NodeId + 1) % this.NumOfIds].Start,503 this.FingerTable[(this.NodeId + 1) % this.NumOfIds].End,504 successor);505 this.SendEvent(successor, new NotifySuccessor(this.Id));506 this.SendEvent(successor, new AskForKeys(this.Id, this.NodeId));507 }508 }509 private void UpdatePredecessor(Event e)510 {511 var predecessor = (e as NotifySuccessor).Node;512 if (!predecessor.Equals(this.Id))...

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FindPredecessor

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1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Actors;7using Microsoft.Coyote.Actors.BugFinding.Tests;8using Microsoft.Coyote.Actors.BugFinding;9{10 {11 static void Main(string[] args)12 {13 var configuration = Configuration.Create();14 configuration.MaxSchedulingSteps = 1000;15 configuration.MaxFairSchedulingSteps = 1000;16 configuration.MaxStepsFromBugFinding = 1000;17 configuration.MaxFairStepsFromBugFinding = 1000;18 configuration.MaxUnfairSchedulingSteps = 1000;19 var runtime = RuntimeFactory.Create(configuration);20 runtime.CreateActor(typeof(TerminateNode));21 runtime.Wait();22 }23 }24}25using System;26using System.Collections.Generic;27using System.Linq;28using System.Text;29using System.Threading.Tasks;30using Microsoft.Coyote.Actors;31using Microsoft.Coyote.Actors.BugFinding.Tests;32using Microsoft.Coyote.Actors.BugFinding;33{34 {35 [OnEventDoAction(typeof(UnitEvent), nameof(Init))]36 class InitState : State { }37 void Init()38 {39 var node = this.CreateActor(typeof(Node));

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FindPredecessor

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1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Actors.BugFinding.Tests;6using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode;7{8 {9 static void Main(string[] args)10 {11 var configuration = Configuration.Create();12 configuration.MaxSchedulingSteps = 100000000;13 configuration.MaxFairSchedulingSteps = 100000000;14 configuration.SuppressTrace = true;15 configuration.SuppressExceptions = false;16 configuration.RandomSchedulingSeed = 0;17 configuration.EnableCycleDetection = true;18 configuration.EnableDataRaceDetection = true;19 configuration.EnableDeadlockDetection = true;20 configuration.EnableLivelockDetection = true;21 configuration.EnableOperationCanceledException = true;22 configuration.EnableObjectDisposedException = true;23 configuration.EnableActorShadowing = true;24 configuration.EnableActorMonitors = true;25 configuration.EnableHotStateDetection = true;26 configuration.EnableHotStateProbability = 0.5;27 configuration.EnableHotStateDistance = 5;28 configuration.EnableHotStateDistanceProbability = 0.5;29 configuration.EnableBuggyWaitOperations = true;30 configuration.EnableRandomDelayInjection = true;31 configuration.EnableRandomDelayProbability = 0.5;32 configuration.EnableRandomDelayMax = 100;33 configuration.EnableRandomDelayMin = 0;34 configuration.EnableRandomExecution = true;35 configuration.EnableRandomExecutionProbability = 0.5;36 configuration.EnableRandomExecutionMaxSteps = 100;37 configuration.EnableRandomExecutionMaxFairSteps = 100;38 configuration.EnableRandomExecutionMaxStepsPerIteration = 100;39 configuration.EnableRandomExecutionMaxFairStepsPerIteration = 100;40 configuration.EnableRandomExecutionMaxIterations = 100;41 configuration.EnableRandomExecutionMaxFairIterations = 100;42 configuration.EnableRandomExecutionMaxUnfairSchedulingSteps = 100000000;43 configuration.EnableRandomExecutionMaxUnfairFairSchedulingSteps = 100000000;44 configuration.EnableRandomExecutionMaxUnfairStepsPerIteration = 100;45 configuration.EnableRandomExecutionMaxUnfairFairStepsPerIteration = 100;46 configuration.EnableRandomExecutionMaxUnfairIterations = 100;47 configuration.EnableRandomExecutionMaxUnfairFairIterations = 100;

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FindPredecessor

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1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Actors.BugFinding;5using Microsoft.Coyote.Actors.BugFinding.Tests;6using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode;7using Microsoft.Coyote.Specifications;8using Microsoft.Coyote.Tests.Common;9using Microsoft.Coyote.Tests.Common.Actors;10using Microsoft.Coyote.Tests.Common.Actors.Actors;11using Microsoft.Coyote.Tests.Common.Actors.BugFinding;12{13 {14 public static async Task Main(string[] args)15 {16 using (var runtime = RuntimeFactory.Create())17 {18 var monitor = new ActorMonitor();19 var id = ActorId.CreateRandom();20 var actor = runtime.CreateActor(typeof(TerminateNode), id, monitor, true);21 runtime.SendEvent(id, new FindPredecessor());22 await runtime.WaitAsync(id);23 Specification.Assert(!monitor.IsCrashed, "Actor crashed.");24 }25 }26 }27 {28 [OnEventDoAction(typeof(ActorCrashedEvent), nameof(CheckCrash))]29 {30 }31 private void CheckCrash(Event e)32 {33 this.IsCrashed = true;34 }35 internal bool IsCrashed { get; private set; }36 }37}38using System;39using System.Threading.Tasks;40using Microsoft.Coyote.Actors;41using Microsoft.Coyote.Actors.BugFinding;42using Microsoft.Coyote.Actors.BugFinding.Tests;43using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode;44using Microsoft.Coyote.Specifications;45using Microsoft.Coyote.Tests.Common;46using Microsoft.Coyote.Tests.Common.Actors;47using Microsoft.Coyote.Tests.Common.Actors.Actors;

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FindPredecessor

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1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Actors.BugFinding;6using Microsoft.Coyote.Actors.BugFinding.Tests;7{8 {9 static void Main(string[] args)10 {11 var config = Configuration.Create();12 config.MaxSchedulingSteps = 1000;13 config.TestingIterations = 1000;14 config.Verbose = 1;15 config.SchedulingStrategy = SchedulingStrategy.DFS;16 config.EnableCycleDetection = true;17 config.EnableDataRaceDetection = true;18 config.EnableDeadlockDetection = true;19 config.EnableHotStateDetection = true;20 config.EnableLivelockDetection = true;21 config.EnableOperationStackTraces = true;22 config.EnablePhaseTimers = true;23 config.EnableStateGraph = true;24 config.EnableStateGraphScheduling = true;25 config.EnableStateGraphSchedulingHeuristics = true;

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FindPredecessor

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1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding.Tests;3using System;4using System.Threading.Tasks;5{6 {7 static async Task Main(string[] args)8 {9 var runtime = await RuntimeFactory.CreateAsync();10 var actorId = await runtime.CreateActorAsync(typeof(TerminateNode));11 var predecessor = await runtime.InvokeActorMethodAsync<ActorId>(actorId, "FindPredecessor");12 Console.WriteLine("Predecessor: " + predecessor);13 Console.ReadLine();14 }15 }16}17using Microsoft.Coyote.Actors;18using Microsoft.Coyote.Actors.BugFinding.Tests;19using System;20using System.Threading.Tasks;21{22 {23 static async Task Main(string[] args)24 {25 var runtime = await RuntimeFactory.CreateAsync();26 var actorId = await runtime.CreateActorAsync(typeof(TerminateNode));27 var predecessor = await runtime.InvokeActorMethodAsync<ActorId>(actorId, "FindPredecessor");28 Console.WriteLine("Predecessor: " + predecessor);29 Console.ReadLine();30 }31 }32}33using Microsoft.Coyote.Actors;34using Microsoft.Coyote.Actors.BugFinding.Tests;35using System;36using System.Threading.Tasks;37{38 {39 static async Task Main(string[] args)40 {41 var runtime = await RuntimeFactory.CreateAsync();42 var actorId = await runtime.CreateActorAsync(typeof(TerminateNode));43 var predecessor = await runtime.InvokeActorMethodAsync<ActorId>(actorId, "FindPredecessor");44 Console.WriteLine("Predecessor: " + predecessor);45 Console.ReadLine();46 }47 }48}49using Microsoft.Coyote.Actors;50using Microsoft.Coyote.Actors.BugFinding.Tests;51using System;52using System.Threading.Tasks;53{

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FindPredecessor

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1using Microsoft.Coyote.Actors.BugFinding.Tests;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Actors.BugFinding.Tests;4using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode;5using Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode;6using System;

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FindPredecessor

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1{2 {3 public static void Main(string[] args)4 {5 var configuration = Configuration.Create().WithTestingIterations(1000);6 var test = new Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode();7 test.TestFindPredecessor(configuration);8 }9 }10}11 at Microsoft.Coyote.Actors.BugFinding.Tests.TerminateNode.TestFindPredecessor(Configuration configuration) in C:\Users\user\Documents\GitHub\coyote\Source\Examples\BugFinding\TerminateNode.cs:line 5912 at FindPredecessor.Main(String[] args) in C:\Users\user\Documents\GitHub\coyote\Source\Examples\BugFinding\2.cs:line 1013this.TestFindPredecessor(configuration);14this.TestFindPredecessor(configuration.WithRandomScheduling());

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FindPredecessor

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1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.BugFinding.Tests;3{4 {5 static void Main(string[] args)6 {7 var runtime = RuntimeFactory.Create();8 var actor = runtime.CreateActor(typeof(TerminateNode));9 var result = runtime.SendEventAndExecuteTask<int>(actor, new FindPredecessor(5));10 System.Console.WriteLine(result);11 }12 }13}14using Microsoft.Coyote.Actors;15using Microsoft.Coyote.Actors.BugFinding.Tests;16{17 {18 static void Main(string[] args)19 {20 var runtime = RuntimeFactory.Create();21 var actor = runtime.CreateActor(typeof(TerminateNode));22 var result = runtime.SendEventAndExecuteTask<int>(actor, new FindSuccessor(5));23 System.Console.WriteLine(result);24 }25 }26}27using Microsoft.Coyote.Actors;28using Microsoft.Coyote.Actors.BugFinding.Tests;29{30 {31 static void Main(string[] args)32 {33 var runtime = RuntimeFactory.Create();34 var actor = runtime.CreateActor(typeof(TerminateNode));35 var result = runtime.SendEventAndExecuteTask<int>(actor, new AddNode(9));36 System.Console.WriteLine(result);37 }38 }39}40using Microsoft.Coyote.Actors;41using Microsoft.Coyote.Actors.BugFinding.Tests;42{43 {44 static void Main(string[] args)45 {46 var runtime = RuntimeFactory.Create();47 var actor = runtime.CreateActor(typeof(Ter

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FindPredecessor

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1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Actors.BugFinding.Tests;4using Microsoft.Coyote.Actors.BugFinding;5using Microsoft.Coyote.Actors.BugFinding.Strategies;6using System.Collections.Generic;7{8 {9 private ActorId head;10 private ActorId tail;11 private Dictionary<ActorId, ActorId> map;12 [OnEventDoAction(typeof(InitEvent), nameof(Init))]13 [OnEventDoAction(typeof(FindPredecessorEvent), nameof(FindPredecessor))]14 [OnEventDoAction(typeof(DeleteNodeEvent), nameof(DeleteNode))]15 private class Init : State { }16 private void Init()17 {18 this.map = new Dictionary<ActorId, ActorId>();19 this.head = this.CreateActor(typeof(Node), new NodeEvent());20 this.map.Add(this.head, null);21 this.tail = this.head;22 this.SendEvent(this.head, new SetNextEvent(this.tail));23 }24 private void FindPredecessor()25 {26 ActorId pred;27 ActorId curr = this.head;28 ActorId succ = this.map[curr];29 while (succ != this.tail)30 {31 pred = curr;32 curr = succ;33 succ = this.map[curr];34 }35 this.SendEvent(this.Id, new FindPredecessorResponseEvent(pred));36 }37 private void DeleteNode()38 {39 this.SendEvent(this.head, new DeleteNodeEvent());40 }41 }42}43using System;44using Microsoft.Coyote.Actors;45using Microsoft.Coyote.Actors.BugFinding.Tests;46using Microsoft.Coyote.Actors.BugFinding;47using Microsoft.Coyote.Actors.BugFinding.Strategies;48using System.Collections.Generic;49{50 {51 private ActorId head;52 private ActorId tail;53 private Dictionary<ActorId, ActorId> map;

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