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How to use InMemoryDbCollection method of Microsoft.Coyote.Samples.AccountManager.ETags.InMemoryDbCollection class

Best Coyote code snippet using Microsoft.Coyote.Samples.AccountManager.ETags.InMemoryDbCollection.InMemoryDbCollection

Program.cs

Source:Program.cs

...13        [Microsoft.Coyote.SystematicTesting.Test]14        public static async Task TestAccountUpdate()15        {16            // Initialize the mock in-memory DB and account manager.17            var dbCollection = new InMemoryDbCollection();18            var accountManager = new AccountManager(dbCollection);19            string accountName = "MyAccount";20            // Create the account, it should complete successfully and return true.21            var result = await accountManager.CreateAccount(accountName, "first_version", 1);22            Assert.True(result);23            result = await accountManager.UpdateAccount(accountName, "second_version", 2);24            Assert.True(result);25            result = await accountManager.UpdateAccount(accountName, "second_version_alt", 2);26            Assert.False(result);27        }28        [Microsoft.Coyote.SystematicTesting.Test]29        public static async Task TestConcurrentAccountUpdate()30        {31            // Initialize the mock in-memory DB and account manager.32            var dbCollection = new InMemoryDbCollection();33            var accountManager = new AccountManager(dbCollection);34            string accountName = "MyAccount";35            // Create the account, it should complete successfully and return true.36            var result = await accountManager.CreateAccount(accountName, "first_version", 1);37            Assert.True(result);38            // Call UpdateAccount twice without awaiting, which makes both methods run39            // asynchronously with each other.40            var task1 = accountManager.UpdateAccount(accountName, "second_version", 2);41            var task2 = accountManager.UpdateAccount(accountName, "second_version_alt", 2);42            // Then wait both requests to complete.43            await Task.WhenAll(task1, task2);44            // Finally, assert that only one of the two requests succeeded and the other45            // failed. Note that we do not know which one of the two succeeded as the46            // requests ran concurrently (this is why we use an exclusive OR).47            Assert.True(task1.Result ^ task2.Result);48        }49        [Microsoft.Coyote.SystematicTesting.Test]50        public static async Task TestGetAccountAfterConcurrentUpdate()51        {52            // Initialize the mock in-memory DB and account manager.53            var dbCollection = new InMemoryDbCollection();54            var accountManager = new AccountManager(dbCollection);55            string accountName = "MyAccount";56            // Create the account, it should complete successfully and return true.57            var result = await accountManager.CreateAccount(accountName, "first_version", 1);58            Assert.True(result);59            // Call UpdateAccount twice without awaiting, which makes both methods run60            // asynchronously with each other.61            var task1 = accountManager.UpdateAccount(accountName, "second_version", 2);62            var task2 = accountManager.UpdateAccount(accountName, "third_version", 3);63            // Then wait both requests to complete.64            await Task.WhenAll(task1, task2);65            // Finally, get the account and assert that the version is always 3,66            // which is the latest updated version.67            var account = await accountManager.GetAccount(accountName);...

InMemoryDbCollection.cs

Source:InMemoryDbCollection.cs

...4using System.Collections.Concurrent;5using System.Threading.Tasks;6namespace Microsoft.Coyote.Samples.AccountManager.ETags7{8    public class InMemoryDbCollection : IDbCollection9    {10        private readonly ConcurrentDictionary<string, DbRow> Collection;11        public InMemoryDbCollection()12        {13            this.Collection = new ConcurrentDictionary<string, DbRow>();14        }15        public Task<bool> CreateRow(string key, string value)16        {17            return Task.Run(() =>18            {19                // Generate a new ETag when creating a brand new row.20                var dbRow = new DbRow()21                {22                    Value = value,23                    ETag = Guid.NewGuid()24                };25                bool success = this.Collection.TryAdd(key, dbRow);...

InMemoryDbCollection

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Samples.AccountManager.ETags;7{8    {9        static void Main(string[] args)10        {11            InMemoryDbCollection db = new InMemoryDbCollection();12            db.Add("1", "1");13            db.Add("2", "2");14            db.Add("3", "3");15            db.Add("4", "4");16            db.Add("5", "5");17            db.Add("6", "6");18            db.Add("7", "7");19            db.Add("8", "8");20            db.Add("9", "9");21            db.Add("10", "10");22            db.Add("11", "11");23            db.Add("12", "12");24            db.Add("13", "13");25            db.Add("14", "14");26            db.Add("15", "15");27            db.Add("16", "16");28            db.Add("17", "17");29            db.Add("18", "18");30            db.Add("19", "19");31            db.Add("20", "20");32            db.Add("21", "21");33            db.Add("22", "22");34            db.Add("23", "23");35            db.Add("24", "24");36            db.Add("25", "25");37            db.Add("26", "26");38            db.Add("27", "27");39            db.Add("28", "28");40            db.Add("29", "29");41            db.Add("30", "30");42            db.Add("31", "31");43            db.Add("32", "32");44            db.Add("33", "33");45            db.Add("34", "34");46            db.Add("35", "35");47            db.Add("36", "36");48            db.Add("37", "37");49            db.Add("38", "38");50            db.Add("39", "39");51            db.Add("40", "40");52            db.Add("41", "41");53            db.Add("42", "42");54            db.Add("43", "43");55            db.Add("44", "44");56            db.Add("45", "45");57            db.Add("46", "46");58            db.Add("47", "47");59            db.Add("48", "

InMemoryDbCollection

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Threading.Tasks;5using Microsoft.Coyote.Samples.AccountManager.ETags;6{7    {8        static void Main(string[] args)9        {10            var db = new InMemoryDbCollection();11            db.Add("test", "test");12            Console.WriteLine(db.Get("test"));13        }14    }15}16using System;17using System.Collections.Generic;18using System.Linq;19using System.Threading.Tasks;20using Microsoft.Coyote.Samples.AccountManager.ETags;21{22    {23        static void Main(string[] args)24        {25            var db = new InMemoryDbCollection();26            db.Add("test", "test");27            Console.WriteLine(db.Get("test"));28        }29    }30}31using System;32using System.Collections.Generic;33using System.Linq;34using System.Threading.Tasks;35using Microsoft.Coyote.Samples.AccountManager.ETags;36{37    {38        static void Main(string[] args)39        {40            var db = new InMemoryDbCollection();41            db.Add("test", "test");42            Console.WriteLine(db.Get("test"));43        }44    }45}46using System;47using System.Collections.Generic;48using System.Linq;49using System.Threading.Tasks;50using Microsoft.Coyote.Samples.AccountManager.ETags;51{52    {53        static void Main(string[] args)54        {55            var db = new InMemoryDbCollection();56            db.Add("test", "test");57            Console.WriteLine(db.Get("test"));58        }59    }60}61using System;62using System.Collections.Generic;63using System.Linq;64using System.Threading.Tasks;65using Microsoft.Coyote.Samples.AccountManager.ETags;

InMemoryDbCollection

Using AI Code Generation

1using System;2using Microsoft.Coyote.Samples.AccountManager.ETags;3{4    {5        static void Main(string[] args)6        {7            InMemoryDbCollection dbCollection = new InMemoryDbCollection();8            dbCollection.Add("123", "abc");9            dbCollection.Add("123", "def");10            dbCollection.Add("123", "ghi");11            dbCollection.Add("123", "jkl");12            dbCollection.Add("123", "mno");13            dbCollection.Add("123", "pqr");14            dbCollection.Add("123", "stu");15            dbCollection.Add("123", "vwx");16            dbCollection.Add("123", "yz");17            dbCollection.Add("123", "123");18            dbCollection.Add("123", "456");19            dbCollection.Add("123", "789");20            dbCollection.Add("123", "101112");21            dbCollection.Add("123", "131415");22            dbCollection.Add("123", "161718");23            dbCollection.Add("123", "192021");24            dbCollection.Add("123", "222324");25            dbCollection.Add("123", "252627");26            dbCollection.Add("123", "282930");27            dbCollection.Add("123", "313233");28            dbCollection.Add("123", "343536");29            dbCollection.Add("123", "373839");30            dbCollection.Add("123", "404142");31            dbCollection.Add("123", "434445");32            dbCollection.Add("123", "464748");33            dbCollection.Add("123", "495051");34            dbCollection.Add("123", "525354");35            dbCollection.Add("123", "555657");36            dbCollection.Add("123", "585960");37            dbCollection.Add("123", "616263");38            dbCollection.Add("123", "646566");39            dbCollection.Add("123", "676869");40            dbCollection.Add("123", "707172");41            dbCollection.Add("123", "737475");42            dbCollection.Add("123", "767778");43            dbCollection.Add("123", "798081");44            dbCollection.Add("123", "828384");45            dbCollection.Add("123", "858687");46            dbCollection.Add("123", "888990");47            dbCollection.Add("123", "919293");48            dbCollection.Add("123", "949596");

InMemoryDbCollection

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Threading.Tasks;5using Microsoft.Coyote.Samples.AccountManager.ETags;6{7    {8        static void Main(string[] args)9        {10            InMemoryDbCollection db = new InMemoryDbCollection();11            db.Add("1", "1");12            db.Add("2", "2");13            db.Add("3", "3");14            db.Add("4", "4");15            db.Add("5", "5");16            db.Add("6", "6");17            db.Add("7", "7");18            db.Add("8", "8");19            db.Add("9", "9");20            db.Add("10", "10");21            db.Add("11", "11");22            db.Add("12", "12");23            db.Add("13", "13");24            db.Add("14", "14");25            db.Add("15", "15");26            db.Add("16", "16");27            db.Add("17", "17");28            db.Add("18", "18");29            db.Add("19", "19");30            db.Add("20", "20");31            db.Add("21", "21");32            db.Add("22", "22");33            db.Add("23", "23");34            db.Add("24", "24");35            db.Add("25", "25");36            db.Add("26", "26");37            db.Add("27", "27");38            db.Add("28", "28");39            db.Add("29", "29");40            db.Add("30", "30");41            db.Add("31", "31");42            db.Add("32", "32");43            db.Add("33", "33");44            db.Add("34", "34");45            db.Add("35", "35");46            db.Add("36", "36");47            db.Add("37", "37");48            db.Add("38", "38");49            db.Add("39", "39");50            db.Add("40", "40");51            db.Add("41", "41");52            db.Add("42", "42");53            db.Add("43", "43");54            db.Add("44", "44");55            db.Add("45", "45");56            db.Add("46", "46");57            db.Add("47", "47");58            db.Add("48", "48");

InMemoryDbCollection

Using AI Code Generation

1var collection = new InMemoryDbCollection();2var collection = new InMemoryDbCollection();3namespace Microsoft.Coyote.Samples.AccountManager.ETags;4using Microsoft.Coyote.Samples.AccountManager.ETags;5using Microsoft.Coyote.Samples.AccountManager.ETags.Tests;6using Microsoft.VisualStudio.TestTools.UnitTesting;7using System;8using System.Collections.Generic;9using System.Text;10{11    {12        public void TestMethod1()13        {14            var collection = new InMemoryDbCollection();15        }16    }17}

InMemoryDbCollection

Using AI Code Generation

1using Microsoft.Coyote.Samples.AccountManager.ETags;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using System.Threading;8{9    {10        static void Main(string[] args)11        {12            var collection = new InMemoryDbCollection();13            collection.Add(new ETagData("1", "1"));14            collection.Add(new ETagData("2", "2"));15            collection.Add(new ETagData("3", "3"));16            collection.Add(new ETagData("4", "4"));17            collection.Add(new ETagData("5", "5"));18            collection.Add(new ETagData("6", "6"));19            collection.Add(new ETagData("7", "7"));20            collection.Add(new ETagData("8", "8"));21            collection.Add(new ETagData("9", "9"));22            collection.Add(new ETagData("10", "10"));23            collection.Add(new ETagData("11", "11"));24            collection.Add(new ETagData("12", "12"));25            collection.Add(new ETagData("13", "13"));26            collection.Add(new ETagData("14", "14"));27            collection.Add(new ETagData("15", "15"));28            collection.Add(new ETagData("16", "16"));29            collection.Add(new ETagData("17", "17"));30            collection.Add(new ETagData("18", "18"));31            collection.Add(new ETagData("19", "19"));32            collection.Add(new ETagData("20", "20"));33            collection.Add(new ETagData("21", "21"));34            collection.Add(new ETagData("22", "22"));35            collection.Add(new ETagData("23", "23"));36            collection.Add(new ETagData("24", "24"));37            collection.Add(new ETagData("25", "25"));38            collection.Add(new ETagData("26", "26"));39            collection.Add(new ETagData("27", "27"));40            collection.Add(new ETagData("28", "28"));41            collection.Add(new ETagData("29", "29"));42            collection.Add(new ETagData("30", "30"));43            collection.Add(new ETagData("31", "31"));44            collection.Add(new ETagData("32", "32"));45            collection.Add(new ETagData("33", "33

InMemoryDbCollection

Using AI Code Generation

1using Microsoft.Coyote.Samples.AccountManager.ETags;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using System.Threading;8{9    {10        static void Main(string[] args)11        {12            var db = new InMemoryDbCollection();13            var account = new Account("Account1");14            db.Add(account);15            var account1 = db.Get(account.Id);16            Console.WriteLine(account1.Id);17            Console.ReadLine();18        }19    }20}

InMemoryDbCollection

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using Microsoft.Coyote.Samples.AccountManager.ETags;5{6    {7        public InMemoryDbCollection()8        {9            this.InMemoryDb = new Dictionary<string, string>();10        }11        public Dictionary<string, string> InMemoryDb { get; }12        public void Add(string key, string value)13        {14            this.InMemoryDb.Add(key, value);15        }16        public bool ContainsKey(string key)17        {18            return this.InMemoryDb.ContainsKey(key);19        }20        public string Get(string key)21        {22            return this.InMemoryDb[key];23        }24        public void Remove(string key)25        {26            this.InMemoryDb.Remove(key);27        }28        public void Update(string key, string value)29        {30            this.InMemoryDb[key] = value;31        }32    }33}34using System;35using System.Collections.Generic;36using System.Text;37using Microsoft.Coyote.Samples.AccountManager.ETags;38using Microsoft.Coyote.Samples.AccountManager.Exceptions;39{40    {41        private readonly IInMemoryDbCollection inMemoryDbCollection;42        public AccountManager(IInMemoryDbCollection inMemoryDbCollection)43        {44            this.inMemoryDbCollection = inMemoryDbCollection;45        }46        public string CreateAccount(string accountId, string eTag)47        {48            if (this.inMemoryDbCollection.ContainsKey(accountId))49            {50                throw new AccountAlreadyExistsException(accountId);51            }52            this.inMemoryDbCollection.Add(accountId, eTag);53            return accountId;54        }55        public string UpdateAccount(string accountId, string eTag)56        {57            if (!this.inMemoryDbCollection.ContainsKey(accountId))58            {59                throw new AccountDoesNotExistException(accountId);60            }61            var existingETag = this.inMemoryDbCollection.Get(accountId);62            if (existingETag != eTag)63            {64                throw new AccountETagMismatchException(accountId, existingETag, eTag);65            }66            this.inMemoryDbCollection.Update(accountId, eTag);67            return accountId;

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