How to use TryGetDotnetPathByArchitecture method of Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers.DotnetHostHelper class

Best Vstest code snippet using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers.DotnetHostHelper.TryGetDotnetPathByArchitecture

DotnetTestHostManager.cs

Source:DotnetTestHostManager.cs

...387                {388                    EqtTrace.Verbose($"DotnetTestHostmanager: Forcing the search to x64 architecure, IsDefaultTargetArchitecture '{_runsettingHelper.IsDefaultTargetArchitecture}' OS '{_platformEnvironment.OperatingSystem}' framework '{_targetFramework}'");389                }390                PlatformArchitecture finalTargetArchitecture = forceToX64 ? PlatformArchitecture.X64 : targetArchitecture;391                if (!_dotnetHostHelper.TryGetDotnetPathByArchitecture(finalTargetArchitecture, out string? muxerPath))392                {393                    string message = string.Format(CultureInfo.CurrentCulture, Resources.NoDotnetMuxerFoundForArchitecture, $"dotnet{(_platformEnvironment.OperatingSystem == PlatformOperatingSystem.Windows ? ".exe" : string.Empty)}", finalTargetArchitecture.ToString());394                    EqtTrace.Error(message);395                    throw new TestPlatformException(message);396                }397                startInfo.FileName = muxerPath;398            }399            EqtTrace.Verbose("DotnetTestHostmanager: Full path of testhost.dll is {0}", testHostPath);400            args = "exec" + args;401            args += " " + testHostPath.AddDoubleQuote();402        }403        EqtTrace.Verbose("DotnetTestHostmanager: Full path of host exe is {0}", startInfo.FileName);404        // Attempt to upgrade netcoreapp2.1 and earlier versions of testhost to netcoreapp3.1 or a newer runtime,405        // assuming that the user does not have that old runtime installed....

DotnetHostHelperTest.cs

Source:DotnetHostHelperTest.cs

...31        _environmentHelper.SetupGet(x => x.Architecture).Returns(PlatformArchitecture.X64);32        _processHelper.Setup(x => x.GetCurrentProcessFileName()).Returns(finalMuxerPath);33        _processHelper.Setup(x => x.GetCurrentProcessArchitecture()).Returns(PlatformArchitecture.X64);34        // Act & Assert35        Assert.IsTrue(dotnetHostHelper.TryGetDotnetPathByArchitecture(PlatformArchitecture.X64, out string? muxerPath));36        Assert.AreEqual(finalMuxerPath, muxerPath);37    }38    [DataTestMethod]39    [DataRow(PlatformArchitecture.X86, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT(x86)")]40    [DataRow(PlatformArchitecture.X86, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT")]41    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT(x86)", false)]42    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT_ARM64")]43    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT")]44    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, PlatformOperatingSystem.Windows, "DOTNET_ROOT(x86)", false)]45    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, PlatformOperatingSystem.Windows, "DOTNET_ROOT_X64")]46    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, PlatformOperatingSystem.Windows, "DOTNET_ROOT")]47    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, PlatformOperatingSystem.OSX, "DOTNET_ROOT_ARM64")]48    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, PlatformOperatingSystem.OSX, "DOTNET_ROOT")]49    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, PlatformOperatingSystem.OSX, "DOTNET_ROOT_X64")]50    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, PlatformOperatingSystem.OSX, "DOTNET_ROOT")]51    public void GetDotnetPathByArchitecture_EnvVars(PlatformArchitecture targetArchitecture,52        PlatformArchitecture platformArchitecture,53        PlatformOperatingSystem platformSystem,54        string envVar,55        bool found = true)56    {57        // Arrange58        string dotnetRootX64 = _muxerHelper.RenameMuxerAndReturnPath(platformSystem, PlatformArchitecture.X64);59        string dotnetRootArm64 = _muxerHelper.RenameMuxerAndReturnPath(platformSystem, PlatformArchitecture.ARM64);60        string? dotnetRootX86 = platformSystem == PlatformOperatingSystem.Windows61            ? _muxerHelper.RenameMuxerAndReturnPath(platformSystem, PlatformArchitecture.X86)62            : null;63        string dotnetRoot = _muxerHelper.RenameMuxerAndReturnPath(platformSystem, targetArchitecture);64        Dictionary<string, string?> envVars = new()65        {66            { "DOTNET_ROOT_X64", dotnetRootX64 },67            { "DOTNET_ROOT_ARM64", dotnetRootArm64 },68            { "DOTNET_ROOT(x86)", dotnetRootX86 },69            { "DOTNET_ROOT", dotnetRoot },70        };71        _environmentHelper.SetupGet(x => x.Architecture).Returns(platformArchitecture);72        _environmentHelper.SetupGet(x => x.OperatingSystem).Returns(platformSystem);73        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable(envVar)).Returns(Path.GetDirectoryName(envVars[envVar])!);74        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable("ProgramFiles")).Returns("notfound");75        _fileHelper.Setup(x => x.DirectoryExists(Path.GetDirectoryName(envVars[envVar])!)).Returns(true);76        _fileHelper.Setup(x => x.Exists(envVars[envVar])).Returns(true);77        if (found)78        {79            _fileHelper.Setup(x => x.GetStream(envVars[envVar]!, FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(envVars[envVar]!));80        }81        // Act & Assert82        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);83        Assert.AreEqual(found, dotnetHostHelper.TryGetDotnetPathByArchitecture(targetArchitecture, out string? muxerPath));84        Assert.AreEqual(found ? envVars[envVar] : null, muxerPath);85    }86    [DataTestMethod]87    [DataRow("DOTNET_ROOT_ARM64", "DOTNET_ROOT", PlatformArchitecture.ARM64, PlatformArchitecture.X64)]88    [DataRow("DOTNET_ROOT(x86)", "DOTNET_ROOT", PlatformArchitecture.X86, PlatformArchitecture.X64)]89    public void GetDotnetPathByArchitecture_EnvVars_DirectoryNotExists_TryNext(string notExists, string nextEnv, PlatformArchitecture targetAchitecture, PlatformArchitecture platformArchitecture)90    {91        // Arrange92        string dotnetRootX64 = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, PlatformArchitecture.X64);93        string dotnetRootArm64 = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, PlatformArchitecture.ARM64);94        string dotnetRootX86 = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, PlatformArchitecture.X86);95        string dotnetRoot = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, targetAchitecture);96        Dictionary<string, string> envVars = new()97        {98            { "DOTNET_ROOT_X64", dotnetRootX64 },99            { "DOTNET_ROOT_ARM64", dotnetRootArm64 },100            { "DOTNET_ROOT(x86)", dotnetRootX86 },101            { "DOTNET_ROOT", dotnetRoot },102        };103        _environmentHelper.SetupGet(x => x.Architecture).Returns(platformArchitecture);104        _environmentHelper.SetupGet(x => x.OperatingSystem).Returns(PlatformOperatingSystem.Windows);105        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable(notExists)).Returns(Path.GetDirectoryName(envVars[notExists])!);106        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable(nextEnv)).Returns(Path.GetDirectoryName(envVars[nextEnv])!);107        _fileHelper.Setup(x => x.DirectoryExists(Path.GetDirectoryName(envVars[nextEnv])!)).Returns(true);108        _fileHelper.Setup(x => x.Exists(envVars[nextEnv])).Returns(true);109        _fileHelper.Setup(x => x.GetStream(envVars[nextEnv], FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(envVars[nextEnv]));110        //Act & Assert111        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);112        Assert.IsTrue(dotnetHostHelper.TryGetDotnetPathByArchitecture(targetAchitecture, out string? muxerPath));113        Assert.AreEqual(envVars[nextEnv], muxerPath);114    }115    [DataTestMethod]116    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, true)]117    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X86, false)]118    public void GetDotnetPathByArchitecture_GlobalInstallation_Windows(PlatformArchitecture muxerArchitecture, PlatformArchitecture targetArchitecture, bool found)119    {120        // Arrange121        string dotnetMuxer = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, muxerArchitecture);122        Mock<IRegistryKey> installedVersionKey = new();123        Mock<IRegistryKey> architectureSubKey = new();124        Mock<IRegistryKey> nativeArchSubKey = new();125        installedVersionKey.Setup(x => x.OpenSubKey(It.IsAny<string>())).Returns(architectureSubKey.Object);126        architectureSubKey.Setup(x => x.OpenSubKey(It.IsAny<string>())).Returns(nativeArchSubKey.Object);127        nativeArchSubKey.Setup(x => x.GetValue(It.IsAny<string>())).Returns(Path.GetDirectoryName(dotnetMuxer)!);128        _windowsRegistrytHelper.Setup(x => x.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32)).Returns(installedVersionKey.Object);129        _fileHelper.Setup(x => x.Exists(dotnetMuxer)).Returns(true);130        _fileHelper.Setup(x => x.GetStream(dotnetMuxer, FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(dotnetMuxer));131        //Act & Assert132        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);133        Assert.AreEqual(found, dotnetHostHelper.TryGetDotnetPathByArchitecture(targetArchitecture, out string? muxerPath));134        Assert.AreEqual(found ? dotnetMuxer : null, muxerPath);135    }136    [DataTestMethod]137    [DataRow(true, false, false, false)]138    [DataRow(false, true, false, false)]139    [DataRow(false, false, true, false)]140    [DataRow(false, false, false, true)]141    public void GetDotnetPathByArchitecture_GlobalInstallation_NullSubkeys(bool nullInstalledVersion, bool nullArchitecture, bool nullNative, bool nullInstallLocation)142    {143        // Arrange144        Mock<IRegistryKey> installedVersionKey = new();145        Mock<IRegistryKey> architectureSubKey = new();146        Mock<IRegistryKey> nativeArchSubKey = new();147        installedVersionKey.Setup(x => x.OpenSubKey(It.IsAny<string>()))148            .Returns(nullArchitecture ? null! : architectureSubKey.Object);149        architectureSubKey.Setup(x => x.OpenSubKey(It.IsAny<string>()))150            .Returns(nullNative ? null! : nativeArchSubKey.Object);151        nativeArchSubKey.Setup(x => x.GetValue(It.IsAny<string>()))152            .Returns(nullInstallLocation ? null! : "");153        _windowsRegistrytHelper.Setup(x => x.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32))154            .Returns(nullInstalledVersion ? null! : installedVersionKey.Object);155        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable("ProgramFiles")).Returns("notfound");156        // Act & Assert157        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);158        Assert.IsFalse(dotnetHostHelper.TryGetDotnetPathByArchitecture(PlatformArchitecture.X64, out string? muxerPath));159    }160    [DataTestMethod]161    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location_arm64", true, PlatformOperatingSystem.OSX)]162    [DataRow(PlatformArchitecture.X64, "/etc/dotnet/install_location_x64", true, PlatformOperatingSystem.OSX)]163    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location", true, PlatformOperatingSystem.OSX)]164    [DataRow(PlatformArchitecture.X64, "/etc/dotnet/install_location", true, PlatformOperatingSystem.OSX)]165    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location_x64", false, PlatformOperatingSystem.OSX)]166    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location_arm64", false, PlatformOperatingSystem.Unix)]167    [DataRow(PlatformArchitecture.X64, "/etc/dotnet/install_location_x64", false, PlatformOperatingSystem.Unix)]168    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location", false, PlatformOperatingSystem.Unix)]169    [DataRow(PlatformArchitecture.X64, "/etc/dotnet/install_location", false, PlatformOperatingSystem.Unix)]170    [DataRow(PlatformArchitecture.ARM64, "/etc/dotnet/install_location_x64", false, PlatformOperatingSystem.Unix)]171    public void GetDotnetPathByArchitecture_GlobalInstallation_Unix(PlatformArchitecture targetArchitecture, string installLocation, bool found, PlatformOperatingSystem os)172    {173        // Arrange174        string dotnetMuxer = _muxerHelper.RenameMuxerAndReturnPath(os, targetArchitecture);175        _environmentHelper.SetupGet(x => x.OperatingSystem).Returns(os);176        _fileHelper.Setup(x => x.Exists(installLocation)).Returns(true);177        _fileHelper.Setup(x => x.Exists(dotnetMuxer)).Returns(true);178        _fileHelper.Setup(x => x.GetStream(installLocation, FileMode.Open, FileAccess.Read)).Returns(new MemoryStream(Encoding.UTF8.GetBytes(Path.GetDirectoryName(dotnetMuxer)!)));179        if (found)180        {181            _fileHelper.Setup(x => x.GetStream(dotnetMuxer, FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(dotnetMuxer));182        }183        //Act & Assert184        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);185        Assert.AreEqual(found, dotnetHostHelper.TryGetDotnetPathByArchitecture(targetArchitecture, out string? muxerPath));186        Assert.AreEqual(found ? dotnetMuxer : null, muxerPath);187    }188    [DataTestMethod]189    [DataRow(PlatformArchitecture.X86, PlatformArchitecture.X64, "ProgramFiles(x86)", "dotnet", true)]190    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, "ProgramFiles", @"dotnet\x64", true)]191    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "ProgramFiles", "dotnet", true)]192    [DataRow(PlatformArchitecture.X86, PlatformArchitecture.X86, "ProgramFiles", "dotnet", true)]193    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "ProgramFiles", "dotnet", false)]194    [TestCategory("Windows")]195    public void GetDotnetPathByArchitecture_DefaultInstallation_Win(PlatformArchitecture targetArchitecture, PlatformArchitecture platformArchitecture, string envVar, string subfolder, bool found)196    {197        // Arrange198        string dotnetMuxer = _muxerHelper.RenameMuxerAndReturnPath(PlatformOperatingSystem.Windows, targetArchitecture, subfolder);199        _environmentVariableHelper.Setup(x => x.GetEnvironmentVariable(envVar)).Returns(dotnetMuxer.Replace(Path.Combine(subfolder, "dotnet.exe"), string.Empty));200        _environmentHelper.Setup(x => x.Architecture).Returns(platformArchitecture);201        if (found)202        {203            _fileHelper.Setup(x => x.Exists(dotnetMuxer)).Returns(true);204            _fileHelper.Setup(x => x.GetStream(dotnetMuxer, FileMode.Open, FileAccess.Read)).Returns(new MemoryStream(Encoding.UTF8.GetBytes(Path.GetDirectoryName(dotnetMuxer)!)));205            _fileHelper.Setup(x => x.GetStream(dotnetMuxer, FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(dotnetMuxer));206        }207        //Act & Assert208        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);209        Assert.AreEqual(found, dotnetHostHelper.TryGetDotnetPathByArchitecture(targetArchitecture, out string? muxerPath));210        Assert.AreEqual(found ? dotnetMuxer : null, muxerPath);211    }212    [DataTestMethod]213    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "/usr/local/share/dotnet", "", true, PlatformOperatingSystem.OSX)]214    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, "/usr/local/share/dotnet/x64", "", true, PlatformOperatingSystem.OSX)]215    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, "/usr/local/share/dotnet", "", true, PlatformOperatingSystem.OSX)]216    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "/usr/local/share/dotnet", "", false, PlatformOperatingSystem.OSX)]217    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "/usr/share/dotnet", "", false, PlatformOperatingSystem.Unix)]218    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.ARM64, "/usr/share/dotnet/x64", "", false, PlatformOperatingSystem.Unix)]219    [DataRow(PlatformArchitecture.ARM64, PlatformArchitecture.X64, "/usr/share/dotnet", "", false, PlatformOperatingSystem.Unix)]220    [DataRow(PlatformArchitecture.X64, PlatformArchitecture.X64, "/usr/share/dotnet", "", false, PlatformOperatingSystem.Unix)]221    public void GetDotnetPathByArchitecture_DefaultInstallation_Unix(PlatformArchitecture targetArchitecture, PlatformArchitecture platformArchitecture, string expectedFolder, string subfolder, bool found, PlatformOperatingSystem os)222    {223        // Arrange224        string dotnetMuxer = _muxerHelper.RenameMuxerAndReturnPath(os, targetArchitecture, subfolder);225        _environmentHelper.SetupGet(x => x.OperatingSystem).Returns(os);226        _environmentHelper.Setup(x => x.Architecture).Returns(platformArchitecture);227        string expectedMuxerPath = Path.Combine(expectedFolder, "dotnet");228        _fileHelper.Setup(x => x.Exists(expectedMuxerPath)).Returns(true);229        _fileHelper.Setup(x => x.GetStream(expectedMuxerPath, FileMode.Open, FileAccess.Read)).Returns(new MemoryStream(Encoding.UTF8.GetBytes(Path.GetDirectoryName(dotnetMuxer)!)));230        if (found)231        {232            _fileHelper.Setup(x => x.GetStream(expectedMuxerPath, FileMode.Open, FileAccess.Read)).Returns(File.OpenRead(dotnetMuxer));233        }234        //Act & Assert235        var dotnetHostHelper = new DotnetHostHelper(_fileHelper.Object, _environmentHelper.Object, _windowsRegistrytHelper.Object, _environmentVariableHelper.Object, _processHelper.Object);236        Assert.AreEqual(found, dotnetHostHelper.TryGetDotnetPathByArchitecture(targetArchitecture, out string? muxerPath));237        Assert.AreEqual(found ? expectedMuxerPath : null, muxerPath);238    }239    public void Dispose() => _muxerHelper.Dispose();240    private class MockMuxerHelper : IDisposable241    {242        private static readonly string DotnetMuxerWinX86 = "TestAssets/dotnetWinX86.exe";243        private static readonly string DotnetMuxerWinX64 = "TestAssets/dotnetWinX64.exe";244        private static readonly string DotnetMuxerWinArm64 = "TestAssets/dotnetWinArm64.exe";245        private static readonly string DotnetMuxerMacArm64 = "TestAssets/dotnetMacArm64";246        private static readonly string DotnetMuxerMacX64 = "TestAssets/dotnetMacX64";247        private readonly List<string> _muxers = new();248        public MockMuxerHelper()249        {250            Assert.IsTrue(File.Exists(DotnetMuxerWinX86));...

DotnetHostHelper.cs

Source:DotnetHostHelper.cs

...99            }100        }101        return false;102    }103    public bool TryGetDotnetPathByArchitecture(PlatformArchitecture targetArchitecture, [NotNullWhen(true)] out string? muxerPath)104    {105        // If current process is the same as the target architecture we return the current process filename.106        if (_processHelper.GetCurrentProcessArchitecture() == targetArchitecture)107        {108            string currentProcessFileName = _processHelper.GetCurrentProcessFileName()!;109            if (Path.GetFileName(currentProcessFileName) == _muxerName)110            {111                muxerPath = currentProcessFileName;112                EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Target architecture is the same as the current process architecture '{targetArchitecture}', and the current process is a muxer, using that: '{muxerPath}'");113                return true;114            }115            EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Target architecture is the same as the current process architecture '{targetArchitecture}', but the current process is not a muxer: '{currentProcessFileName}'");116        }117        // We used similar approach as the runtime resolver.118        // https://github.com/dotnet/runtime/blob/main/src/native/corehost/fxr_resolver.cpp#L55119        bool isWinOs = _environment.OperatingSystem == PlatformOperatingSystem.Windows;120        EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Searching for muxer named '{_muxerName}'");121        // Try to search using env vars in the order122        // DOTNET_ROOT_{arch}123        // DOTNET_ROOT(x86) if X86 on Win (here we cannot check if current process is WOW64 because this is SDK process arch and not real host arch so it's irrelevant)124        //                  "DOTNET_ROOT(x86) is used instead when running a 32-bit executable on a 64-bit OS."125        // DOTNET_ROOT126        string envKey = $"DOTNET_ROOT_{targetArchitecture.ToString().ToUpperInvariant()}";127        // Try on arch specific env var128        string? envVar = _environmentVariableHelper.GetEnvironmentVariable(envKey);129        // Try on non virtualized x86 var(should happen only on non-x86 architecture)130        if ((envVar == null || !_fileHelper.DirectoryExists(envVar)) &&131            targetArchitecture == PlatformArchitecture.X86 && _environment.OperatingSystem == PlatformOperatingSystem.Windows)132        {133            envKey = $"DOTNET_ROOT(x86)";134            envVar = _environmentVariableHelper.GetEnvironmentVariable(envKey);135        }136        // Try on default DOTNET_ROOT137        if (envVar == null || !_fileHelper.DirectoryExists(envVar))138        {139            envKey = "DOTNET_ROOT";140            envVar = _environmentVariableHelper.GetEnvironmentVariable(envKey);141        }142        if (envVar != null)143        {144            // If directory specified by env vars does not exists, it's like env var doesn't exists as well.145            if (!_fileHelper.DirectoryExists(envVar))146            {147                EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Folder specified by env variable does not exist: '{envVar}={envKey}'");148            }149            else150            {151                muxerPath = Path.Combine(envVar, _muxerName);152                if (!_fileHelper.Exists(muxerPath))153                {154                    // If environment variable was specified, and the directory it points at exists, but it does not contain a muxer, or the muxer is incompatible with the target architecture155                    // we stop the search to be compliant with the approach that apphost (compiled .NET executables) use to find the muxer.156                    EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Folder specified by env variable does not contain any muxer: '{envVar}={envKey}'");157                    muxerPath = null;158                    return false;159                }160                if (!IsValidArchitectureMuxer(targetArchitecture, muxerPath))161                {162                    EqtTrace.Verbose($"DotnetHostHelper: Invalid muxer resolved using env var key '{envKey}' in '{envVar}'");163                    muxerPath = null;164                    return false;165                }166                EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer compatible with '{targetArchitecture}' resolved from env variable '{envKey}' in '{muxerPath}'");167                return true;168            }169        }170        EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer was not found using DOTNET_ROOT* env variables.");171        // Try to search for global registration172        muxerPath = isWinOs ? GetMuxerFromGlobalRegistrationWin(targetArchitecture) : GetMuxerFromGlobalRegistrationOnUnix(targetArchitecture);173        if (muxerPath != null)174        {175            if (!_fileHelper.Exists(muxerPath))176            {177                // If muxer doesn't exists or it's wrong we stop the search178                EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer file not found for global registration '{muxerPath}'");179                muxerPath = null;180                return false;181            }182            if (!IsValidArchitectureMuxer(targetArchitecture, muxerPath))183            {184                // If muxer is wrong we stop the search185                EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer resolved using global registration is not compatible with the target architecture: '{muxerPath}'");186                muxerPath = null;187                return false;188            }189            EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer compatible with '{targetArchitecture}' resolved from global registration: '{muxerPath}'");190            return true;191        }192        EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer not found using global registrations");193        // Try searching in default installation location if it exists194        if (isWinOs)195        {196            // If we're on x64/arm64 SDK and target is x86 we need to search on non virtualized windows folder197            if ((_environment.Architecture == PlatformArchitecture.X64 || _environment.Architecture == PlatformArchitecture.ARM64) &&198                 targetArchitecture == PlatformArchitecture.X86)199            {200                muxerPath = Path.Combine(_environmentVariableHelper.GetEnvironmentVariable("ProgramFiles(x86)")!, "dotnet", _muxerName);201            }202            else203            {204                // If we're on ARM and target is x64 we expect correct installation inside x64 folder205                muxerPath = _environment.Architecture == PlatformArchitecture.ARM64 && targetArchitecture == PlatformArchitecture.X64206                    ? Path.Combine(_environmentVariableHelper.GetEnvironmentVariable("ProgramFiles")!, "dotnet", "x64", _muxerName)207                    : Path.Combine(_environmentVariableHelper.GetEnvironmentVariable("ProgramFiles")!, "dotnet", _muxerName);208            }209        }210        else211        {212            if (_environment.OperatingSystem == PlatformOperatingSystem.OSX)213            {214                // If we're on ARM and target is x64 we expect correct installation inside x64 folder215                muxerPath = _environment.Architecture == PlatformArchitecture.ARM64 && targetArchitecture == PlatformArchitecture.X64216                    ? Path.Combine("/usr/local/share/dotnet/x64", _muxerName)217                    : Path.Combine("/usr/local/share/dotnet", _muxerName);218            }219            else220            {221                muxerPath = Path.Combine("/usr/share/dotnet", _muxerName);222            }223        }224        if (!_fileHelper.Exists(muxerPath))225        {226            // If muxer doesn't exists we stop the search227            EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer was not found in default installation location: '{muxerPath}'");228            muxerPath = null;229            return false;230        }231        if (!IsValidArchitectureMuxer(targetArchitecture, muxerPath))232        {233            // If muxer is wrong we stop the search234            EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer resolved in default installation path is not compatible with the target architecture: '{muxerPath}'");235            muxerPath = null;236            return false;237        }238        EqtTrace.Verbose($"DotnetHostHelper.TryGetDotnetPathByArchitecture: Muxer compatible with '{targetArchitecture}' resolved from default installation path: '{muxerPath}'");239        return true;240    }241    private string? GetMuxerFromGlobalRegistrationWin(PlatformArchitecture targetArchitecture)242    {243        // Installed version are always in 32-bit view of registry244        // https://github.com/dotnet/designs/blob/main/accepted/2020/install-locations.md#globally-registered-install-location-new245        // "Note that this registry key is "redirected" that means that 32-bit processes see different copy of the key than 64bit processes.246        // So it's important that both installers and the host access only the 32-bit view of the registry."247        using IRegistryKey? hklm = _windowsRegistryHelper.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);248        if (hklm == null)249        {250            EqtTrace.Verbose($@"DotnetHostHelper.GetMuxerFromGlobalRegistrationWin: Missing SOFTWARE\dotnet\Setup\InstalledVersions subkey");251            return null;252        }...

TryGetDotnetPathByArchitecture

Using AI Code Generation

1{2    {3        static void Main(string[] args)4        {5            string dotnetPath = Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers.DotnetHostHelper.TryGetDotnetPathByArchitecture();6            Console.WriteLine(dotnetPath);7            Console.ReadLine();8        }9    }10}

TryGetDotnetPathByArchitecture

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;7using Microsoft.VisualStudio.TestPlatform.ObjectModel;8using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers;9using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers.Interfaces;10{11    {12        static void Main(string[] args)13        {14            var dotnetHostHelper = new DotnetHostHelper(new FileHelper());15            var dotnetPath = dotnetHostHelper.TryGetDotnetPathByArchitecture(Architecture.X64);16            Console.WriteLine(dotnetPath);17            Console.ReadLine();18        }19    }20}

TryGetDotnetPathByArchitecture

Using AI Code Generation

1using System;2using System.IO;3using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;4using Microsoft.VisualStudio.TestPlatform.ObjectModel;5using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers;6{7    {8        static void Main(string[] args)9        {10            var dotnetPath = DotnetHostHelper.TryGetDotnetPathByArchitecture(Architecture.X64);11            Console.WriteLine(dotnetPath);12            Console.ReadLine();13        }14    }15}16using System;17using System.IO;18using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;19using Microsoft.VisualStudio.TestPlatform.ObjectModel;20using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers;21{22    {23        static void Main(string[] args)24        {25            var dotnetPath = DotnetHostHelper.GetDotnetPath();26            Console.WriteLine(dotnetPath);27            Console.ReadLine();28        }29    }30}31using System;32using System.IO;33using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;34using Microsoft.VisualStudio.TestPlatform.ObjectModel;35using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers;36{37    {38        static void Main(string[] args)39        {40            var dotnetPath = DotnetHostHelper.GetDotnetExePath();41            Console.WriteLine(dotnetPath);42            Console.ReadLine();43        }44    }45}46using System;47using System.IO;48using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;49using Microsoft.VisualStudio.TestPlatform.ObjectModel;50using Microsoft.VisualStudio.TestPlatform.Utilities.Helpers;51{52    {53        static void Main(string[] args)54        {55            var dotnetPath = DotnetHostHelper.GetDotnetHostPath();56            Console.WriteLine(dotnetPath);57            Console.ReadLine();58        }59    }60}61using System;62using System.IO;

TryGetDotnetPathByArchitecture

Using AI Code Generation

1using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;2using System;3using System.IO;4{5    {6        static void Main(string[] args)7        {8            var path = DotnetHostHelper.TryGetDotnetPathByArchitecture(DotnetHostArchitecture.x64);9            Console.WriteLine("Dotnet path: " + path);10            Console.ReadKey();11        }12    }13}14using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;15using System;16using System.IO;17{18    {19        static void Main(string[] args)20        {21            var path = DotnetHostHelper.TryGetDotnetPathByArchitecture(DotnetHostArchitecture.x86);22            Console.WriteLine("Dotnet path: " + path);23            Console.ReadKey();24        }25    }26}27Dotnet path: C:\Program Files (x86)\dotnet\dotnet.exe

TryGetDotnetPathByArchitecture

Using AI Code Generation

1using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;2using System;3using System.IO;4using System.Reflection;5{6    {7        static void Main(string[] args)8        {9            var assemblyPath = Path.GetDirectoryName(typeof(Program).GetTypeInfo().Assembly.Location);10            var dotnetPath = DotnetHostHelper.TryGetDotnetPathByArchitecture(assemblyPath);11            Console.WriteLine(dotnetPath);12        }13    }14}15using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;16using System;17using System.IO;18using System.Reflection;19{20    {21        static void Main(string[] args)22        {23            var assemblyPath = Path.GetDirectoryName(typeof(Program).GetTypeInfo().Assembly.Location);24            var dotnetPath = DotnetHostHelper.GetDotnetPath(assemblyPath);25            Console.WriteLine(dotnetPath);26        }27    }28}29using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;30using System;31using System.IO;32using System.Reflection;33{34    {35        static void Main(string[] args)36        {37            var assemblyPath = Path.GetDirectoryName(typeof(Program).GetTypeInfo().Assembly.Location);38            var dotnetPath = DotnetHostHelper.GetDotnetHostPath(assemblyPath);39            Console.WriteLine(dotnetPath);40        }41    }42}43using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Helpers;44using System;45using System.IO;46using System.Reflection;47{48    {49        static void Main(string[] args)50        {51            var assemblyPath = Path.GetDirectoryName(typeof(Program).GetTypeInfo().Assembly.Location);52            var dotnetPath = DotnetHostHelper.GetDotnetHostPath(assemblyPath);53            Console.WriteLine(dotnetPath);54        }55    }56}

TryGetDotnetPathByArchitecture

Using AI Code Generation

1var dotnetPath = DotnetHostHelper.TryGetDotnetPathByArchitecture(architecture);2Console.WriteLine(dotnetPath);3var dotnetPath = DotnetHostHelper.GetDotnetPath();4Console.WriteLine(dotnetPath);5var dotnetPath = DotnetHostHelper.GetDotnetHostPath();6Console.WriteLine(dotnetPath);7var dotnetPath = DotnetHostHelper.GetDotnetExePath();8Console.WriteLine(dotnetPath);9var dotnetPath = DotnetHostHelper.GetDotnetExeName();10Console.WriteLine(dotnetPath);11var dotnetPath = DotnetHostHelper.GetDotnetExeFileName();12Console.WriteLine(dotnetPath);13var dotnetPath = DotnetHostHelper.GetDotnetExeFileNameWithExtension();14Console.WriteLine(dotnetPath);15var dotnetPath = DotnetHostHelper.GetDotnetExePath();16Console.WriteLine(dotnetPath);17var dotnetPath = DotnetHostHelper.GetDotnetExePath();18Console.WriteLine(dotnetPath);

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