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How to use BoundedBuffer class of Microsoft.Coyote.BugFinding.Tests package

Best Coyote code snippet using Microsoft.Coyote.BugFinding.Tests.BoundedBuffer

ExtremeProgrammingChallenge14Tests.cs

Source:ExtremeProgrammingChallenge14Tests.cs

...18        public ExtremeProgrammingChallenge14Tests(ITestOutputHelper output)19            : base(output)20        {21        }22        internal class BoundedBuffer23        {24            private readonly object syncObject = new object();25            private readonly object[] buffer = new object[1];26            private int putAt;27            private int takeAt;28            private int occupied;29            private readonly bool pulseAll;30            public BoundedBuffer(bool pulseAll)31            {32                this.pulseAll = pulseAll;33            }34            public void Put(object x)35            {36                lock (this.syncObject)37                {38                    while (this.occupied == this.buffer.Length)39                    {40                        Monitor.Wait(this.syncObject);41                    }42                    ++this.occupied;43                    this.putAt %= this.buffer.Length;44                    this.buffer[this.putAt++] = x;45                    if (this.pulseAll)46                    {47                        Monitor.PulseAll(this.syncObject);48                    }49                    else50                    {51                        Monitor.Pulse(this.syncObject);52                    }53                }54            }55            public object Take()56            {57                object result = null;58                lock (this.syncObject)59                {60                    while (this.occupied is 0)61                    {62                        Monitor.Wait(this.syncObject);63                    }64                    --this.occupied;65                    this.takeAt %= this.buffer.Length;66                    result = this.buffer[this.takeAt++];67                    if (this.pulseAll)68                    {69                        Monitor.PulseAll(this.syncObject);70                    }71                    else72                    {73                        Monitor.Pulse(this.syncObject);74                    }75                }76                return result;77            }78        }79        private static void Reader(BoundedBuffer buffer)80        {81            for (int i = 0; i < 10; i++)82            {83                buffer.Take();84            }85        }86        private static void Writer(BoundedBuffer buffer)87        {88            for (int i = 0; i < 20; i++)89            {90                buffer.Put("hello " + i);91            }92        }93        [Fact(Timeout = 5000)]94        public void TestChallenge14WithDeadlock()95        {96            this.TestWithError(() =>97            {98                BoundedBuffer buffer = new BoundedBuffer(false);99                var tasks = new List<Task>100                {101                    Task.Run(() => Reader(buffer)),102                    Task.Run(() => Reader(buffer)),103                    Task.Run(() => Writer(buffer))104                };105                Task.WaitAll(tasks.ToArray());106            },107            configuration: this.GetConfiguration().WithTestingIterations(100),108            errorChecker: (e) =>109            {110                Assert.StartsWith("Deadlock detected.", e);111            },112            replay: true);113        }114        [Fact(Timeout = 5000)]115        public void TestChallenge14WithFix()116        {117            this.Test(() =>118            {119                BoundedBuffer buffer = new BoundedBuffer(true);120                var tasks = new List<Task>121                {122                    Task.Run(() => Reader(buffer)),123                    Task.Run(() => Reader(buffer)),124                    Task.Run(() => Writer(buffer))125                };126                Task.WaitAll(tasks.ToArray());127            },128            configuration: this.GetConfiguration().WithTestingIterations(100));129        }130    }131}...

BoundedBuffer

Using AI Code Generation

1using Microsoft.Coyote.BugFinding.Tests;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            BoundedBuffer buffer = new BoundedBuffer(5);9            Task.Run(() => Producer(buffer));10            Task.Run(() => Consumer(buffer));11            Console.ReadLine();12        }13        static void Producer(BoundedBuffer buffer)14        {15            int value = 0;16            while (true)17            {18                buffer.Put(value);19                Console.WriteLine($"Produced {value++}");20            }21        }22        static void Consumer(BoundedBuffer buffer)23        {24            while (true)25            {26                int value = (int)buffer.Get();27                Console.WriteLine($"Consumed {value}");28            }29        }30    }31}32Assert failure: (object)System.Object is not null

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