How to use Yield method of Microsoft.Coyote.Runtime.SchedulingPoint class

Best Coyote code snippet using Microsoft.Coyote.Runtime.SchedulingPoint.Yield

SchedulingPoint.cs

Source:SchedulingPoint.cs

...37        /// <remarks>38        /// Invoking this method might lower the scheduling priority of the currently executing39        /// operation when certain exploration strategies are used.40        /// </remarks>41        public static void Yield()42        {43            var runtime = CoyoteRuntime.Current;44            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&45                runtime.TryGetExecutingOperation(out ControlledOperation current))46            {47                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)48                {49                    runtime.ScheduleNextOperation(current, SchedulingPointType.Yield, isSuppressible: false, isYielding: true);50                }51                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)52                {53                    runtime.DelayOperation(current);54                }55            }56        }57#pragma warning disable CA1801 // Parameter not used58        /// <summary>59        /// Explores a possible interleaving due to a 'READ' operation on the specified shared state.60        /// </summary>61        /// <param name="state">The shared state that is being read represented as a string.</param>62        /// <param name="comparer">63        /// Checks if the read shared state is equal with another shared state that is being accessed concurrently.64        /// </param>65        public static void Read(string state, IEqualityComparer<string> comparer = default)66        {67            var runtime = CoyoteRuntime.Current;68            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&69                runtime.TryGetExecutingOperation(out ControlledOperation current))70            {71                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)72                {73                    runtime.ScheduleNextOperation(current, SchedulingPointType.Read, isSuppressible: false);74                }75                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)76                {77                    runtime.DelayOperation(current);78                }79            }80        }81        /// <summary>82        /// Explores a possible interleaving due to a 'WRITE' operation on the specified shared state.83        /// </summary>84        /// <param name="state">The shared state that is being written represented as a string.</param>85        /// <param name="comparer">86        /// Checks if the written shared state is equal with another shared state that is being accessed concurrently.87        /// </param>88        public static void Write(string state, IEqualityComparer<string> comparer = default)89        {90            var runtime = CoyoteRuntime.Current;91            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&92                runtime.TryGetExecutingOperation(out ControlledOperation current))93            {94                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)95                {96                    runtime.ScheduleNextOperation(current, SchedulingPointType.Write, isSuppressible: false);97                }98                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)99                {100                    runtime.DelayOperation(current);101                }102            }103        }104        /// <summary>105        /// Suppresses interleavings until <see cref="Resume"/> is invoked.106        /// </summary>107        /// <remarks>108        /// This method does not suppress interleavings that happen when an operation is waiting109        /// some other operation to complete, when an operation completes and the scheduler110        /// switches to a new operation, or interleavings from uncontrolled concurrency.111        /// </remarks>112        public static void Suppress()113        {114            var runtime = CoyoteRuntime.Current;115            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)116            {117                runtime.SuppressScheduling();118            }119        }120        /// <summary>121        /// Resumes interleavings that were suppressed by invoking <see cref="Suppress"/>.122        /// </summary>123        public static void Resume()124        {125            var runtime = CoyoteRuntime.Current;126            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)127            {128                runtime.ResumeScheduling();129            }130        }131        /// <summary>132        /// Sets a checkpoint in the execution path that is so far explored during the current133        /// test iteration. This will capture all controlled scheduling and nondeterministic134        /// decisions taken until the checkpoint and the testing engine will then try to replay135        /// the same decisions in subsequent iterations before performing any new exploration.136        /// </summary>137        /// <remarks>138        /// Only a single checkpoint can be set at a time, and invoking this method with an139        /// existing checkpoint will either extend it with new decisions, or overwrite it if140        /// the new checkpoint diverges or is empty.141        /// </remarks>142        public static void SetCheckpoint()143        {144            var runtime = CoyoteRuntime.Current;145            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)146            {147                runtime.CheckpointExecutionTrace();148            }149        }150        /// <summary>151        /// Returns true if the specified scheduling point is used-defined.152        /// </summary>153        /// <remarks>154        /// A user-defined scheduling point is one that can be explicitly created155        /// by invoking one of the <see cref="SchedulingPoint"/> methods.156        /// </remarks>157        internal static bool IsUserDefined(SchedulingPointType type) =>158            type is SchedulingPointType.Interleave ||159            type is SchedulingPointType.Yield ||160            type is SchedulingPointType.Read ||161            type is SchedulingPointType.Write;162    }163}

SchedulingPointTests.cs

Source:SchedulingPointTests.cs

...43            expectedError: "A: 1, B: 1",44            replay: true);45        }46        [Fact(Timeout = 5000)]47        public void TestYield()48        {49            this.TestWithError(async r =>50            {51                int x = 0;52                int a = 0;53                int b = 0;54                var t1 = Task.Run(async () =>55                {56                    a = x + 1;57                    SchedulingPoint.Yield();58                    x = a;59                    await Task.CompletedTask;60                });61                var t2 = Task.Run(async () =>62                {63                    b = x + 1;64                    SchedulingPoint.Yield();65                    x = b;66                    await Task.CompletedTask;67                });68                await Task.WhenAll(t1, t2);69                Specification.Assert(a > 1 || b > 1, string.Format("A: {0}, B: {1}", a, b));70            },71            configuration: this.GetConfiguration().WithTestingIterations(200),72            expectedError: "A: 1, B: 1",73            replay: true);74        }75        [Fact(Timeout = 5000)]76        public void TestSuppressTaskInterleaving()77        {78            this.Test(async r =>...

PollingTaskLivenessTests.cs

Source:PollingTaskLivenessTests.cs

...26                        if (i is 9)27                        {28                            entry.Value = 1;29                        }30                        await Task.Yield();31                    }32                });33                while (true)34                {35                    if (entry.Value is 1)36                    {37                        break;38                    }39                    await Task.Delay(10);40                }41                await task;42                Specification.Assert(entry.Value is 1, $"Unexpected value {entry.Value}.");43            },44            configuration: this.GetConfiguration().WithTestingIterations(10));...

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            SchedulingPoint.Yield();12        }13    }14}15using Microsoft.Coyote.Runtime;16using System;17using System.Collections.Generic;18using System.Linq;19using System.Text;20using System.Threading.Tasks;21{22    {23        static void Main(string[] args)24        {25            SchedulingPoint.Yield();26        }27    }28}29using Microsoft.Coyote.Runtime;30using System;31using System.Collections.Generic;32using System.Linq;33using System.Text;34using System.Threading.Tasks;35{36    {37        static void Main(string[] args)38        {39            SchedulingPoint.Yield();40        }41    }42}43using Microsoft.Coyote.Runtime;44using System;45using System.Collections.Generic;46using System.Linq;47using System.Text;48using System.Threading.Tasks;49{50    {51        static void Main(string[] args)52        {53            SchedulingPoint.Yield();54        }55    }56}57using Microsoft.Coyote.Runtime;58using System;59using System.Collections.Generic;60using System.Linq;61using System.Text;62using System.Threading.Tasks;63{64    {65        static void Main(string[] args)66        {67            SchedulingPoint.Yield();68        }69    }70}71using Microsoft.Coyote.Runtime;72using System;73using System.Collections.Generic;74using System.Linq;75using System.Text;76using System.Threading.Tasks;77{78    {79        static void Main(string[] args)80        {81            SchedulingPoint.Yield();82        }83    }84}

Yield

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Runtime;7{8    {9        static void Main(string[] args)10        {11            SchedulingPoint.Yield();12        }13    }14}

Yield

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Runtime;6{7    {8        static void Main(string[] args)9        {10            var runtime = RuntimeFactory.Create();11            var task = runtime.CreateActor(typeof(Actor1));12            runtime.Wait(task);13        }14    }15    {16        protected override async Task OnInitializeAsync(Event initialEvent)17        {

Yield

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Threading.Tasks;4using Microsoft.Coyote;5using Microsoft.Coyote.Actors;6using Microsoft.Coyote.Runtime;7using Microsoft.Coyote.Tasks;8{9    {10        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]11        {12        }13        private void DoWork()14        {15            SchedulingPoint.Yield();16            this.SendEvent(this.Id, new UnitEvent());17        }18    }19    {20        static void Main(string[] args)21        {22            var config = Configuration.Create().WithNumberOfIterations(100);23            var runtime = RuntimeFactory.Create(config);24            runtime.CreateActor(typeof(MyActor));25            runtime.Wait();26        }27    }28}29using System;30using System.Collections.Generic;31using System.Threading.Tasks;32using Microsoft.Coyote;33using Microsoft.Coyote.Actors;34using Microsoft.Coyote.Runtime;35using Microsoft.Coyote.Tasks;36{37    {38        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]39        {40        }41        private void DoWork()42        {43            SchedulingPoint.Yield();44            this.SendEvent(this.Id, new UnitEvent());45        }46    }47    {48        static void Main(string[] args)49        {50            var config = Configuration.Create().WithNumberOfIterations(100);51            var runtime = RuntimeFactory.Create(config);52            runtime.CreateActor(typeof(MyActor));53            runtime.Wait();54        }55    }56}57using System;58using System.Collections.Generic;59using System.Threading.Tasks;60using Microsoft.Coyote;61using Microsoft.Coyote.Actors;62using Microsoft.Coyote.Runtime;63using Microsoft.Coyote.Tasks;64{65    {66        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]67        {68        }69        private void DoWork()70        {71            SchedulingPoint.Yield();

Yield

Using AI Code Generation

1{2    {3        public static void Yield() { }4    }5}6using Microsoft.Coyote.Runtime;7{8    static void Main(string[] args)9    {10        SchedulingPoint.Yield();11    }12}13Error 1   The type or namespace name 'Runtime' does not exist in the namespace 'Microsoft.Coyote' (are you missing an assembly reference?)  C:\Users\user\source\repos\Microsoft.Coyote\1.cs  6   Active14Error 1   The type or namespace name 'Test' does not exist in the namespace 'Microsoft.Coyote' (are you missing an assembly reference?)  C:\Users\user\source\repos\Microsoft.Coyote\2.cs  6   Active15using Microsoft.Coyote.Testing;

Yield

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Runtime;4using Microsoft.Coyote.SystematicTesting;5using Microsoft.Coyote.Tasks;6{7    {8        public static void Main()9        {10            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);11            SchedulingPoint.Yield();12            Console.WriteLine("Hello World!");13        }14    }15}16using System;17using System.Threading.Tasks;18using Microsoft.Coyote.Runtime;19using Microsoft.Coyote.SystematicTesting;20using Microsoft.Coyote.Tasks;21{22    {23        public static void Main()24        {25            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);26            Task.Run(() => SchedulingPoint.Yield());27            Console.WriteLine("Hello World!");28        }29    }30}31using System;32using System.Threading.Tasks;33using Microsoft.Coyote.Runtime;34using Microsoft.Coyote.SystematicTesting;35using Microsoft.Coyote.Tasks;36{37    {38        public static void Main()39        {40            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);41            Task.Run(() => SchedulingPoint.Yield());42            Console.WriteLine("Hello World!");43        }44    }45}46using System;47using System.Threading.Tasks;48using Microsoft.Coyote.Runtime;49using Microsoft.Coyote.SystematicTesting;50using Microsoft.Coyote.Tasks;51{52    {53        public static void Main()54        {55            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);56            Task.Run(() => SchedulingPoint.Yield());57            Console.WriteLine("Hello World!");58        }59    }60}

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2using System;3{4    {5        public static void Main(string[] args)6        {7            Test();8        }9        public static void Test()10        {11            SchedulingPoint.Yield();12        }13    }14}15using Microsoft.Coyote.Testing;16using System;17{18    {19        public static void Main(string[] args)20        {21            Test();22        }23        public static void Test()24        {25            this.Yield();26        }27    }28}29using Microsoft.Coyote.Testing;30using System;31{32    {33        public static void Main(string[] args)34        {35            Test();36        }37        public static void Test()38        {39            this.Yield();40        }41    }42}43using Microsoft.Coyote.Testing;44using System;45{46    {47        public static void Main(string[] args)48        {49            Test();50        }51        public static void Test()52        {53            this.Yield();54        }55    }56}57using Microsoft.Coyote.Testing;58using System;59{60    {61        public static void Main(string[] args)62        {63            Test();64        }65        public static void Test()66        {67            this.Yield();68        }69    }70}

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2using Microsoft.Coyote.Tasks;3using System;4using System.Threading.Tasks;5{6    public static async Task Main()7    {8        await Task.Run(() => { Console.WriteLine("Hello world!"); });9        SchedulingPoint.Yield();10    }11}

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2SchedulingPoint.Yield();3using Microsoft.Coyote.Runtime;4SchedulingPoint.Yield();5using Microsoft.Coyote.Runtime;6SchedulingPoint.Yield();7using Microsoft.Coyote.Runtime;8SchedulingPoint.Yield();9using Microsoft.Coyote.Runtime;10SchedulingPoint.Yield();11using Microsoft.Coyote.Runtime;12SchedulingPoint.Yield();13using Microsoft.Coyote.Runtime;14SchedulingPoint.Yield();15using Microsoft.Coyote.Runtime;16SchedulingPoint.Yield();17using Microsoft.Coyote.Runtime;18SchedulingPoint.Yield();19using Microsoft.Coyote.Runtime;20SchedulingPoint.Yield();

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.