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How to use GetDiscoverers method of Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery.DiscovererEnumerator class

Best Vstest code snippet using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery.DiscovererEnumerator.GetDiscoverers

DiscovererEnumerator.cs

Source:DiscovererEnumerator.cs

...273            IEnumerable<string> sources,274            IMessageLogger logger,275            IAssemblyProperties assemblyProperties)276        {277            var allDiscoverers = GetDiscoverers(extensionAssembly, throwOnError: true);278            if (allDiscoverers == null || !allDiscoverers.Any())279            {280                var sourcesString = string.Join(" ", sources);281                // No discoverer available, log a warning282                logger.SendMessage(283                    TestMessageLevel.Warning,284                    string.Format(CultureInfo.CurrentCulture, CrossPlatEngineResources.TestRunFailed_NoDiscovererFound_NoTestsAreAvailableInTheSources, sourcesString));285                return null;286            }287            IDictionary<AssemblyType, IList<string>> assemblyTypeToSoucesMap = null;288            var result = new Dictionary<LazyExtension<ITestDiscoverer, ITestDiscovererCapabilities>, IEnumerable<string>>();289            var sourcesForWhichNoDiscovererIsAvailable = new List<string>(sources);290            foreach (var discoverer in allDiscoverers)291            {292                var sourcesToCheck = sources;293                if (discoverer.Metadata.AssemblyType == AssemblyType.Native ||294                    discoverer.Metadata.AssemblyType == AssemblyType.Managed)295                {296                    assemblyTypeToSoucesMap = assemblyTypeToSoucesMap ?? GetAssemblyTypeToSoucesMap(sources, assemblyProperties);297                    sourcesToCheck = assemblyTypeToSoucesMap[AssemblyType.None].Concat(assemblyTypeToSoucesMap[discoverer.Metadata.AssemblyType]);298                }299                // Find the sources which this discoverer can look at. 300                // Based on whether it is registered for a matching file extension or no file extensions at all.301                var matchingSources = (from source in sourcesToCheck302                                       where303                                           (discoverer.Metadata.FileExtension == null304                                            || discoverer.Metadata.FileExtension.Contains(305                                                Path.GetExtension(source),306                                                StringComparer.OrdinalIgnoreCase))307                                       select source).ToList(); // ToList is required to actually execute the query 308                // Update the source list for which no matching source is available.309                if (matchingSources.Any())310                {311                    sourcesForWhichNoDiscovererIsAvailable =312                        sourcesForWhichNoDiscovererIsAvailable.Except(matchingSources, StringComparer.OrdinalIgnoreCase)313                            .ToList();314                    result.Add(discoverer, matchingSources);315                }316            }317            if (EqtTrace.IsWarningEnabled && sourcesForWhichNoDiscovererIsAvailable != null)318            {319                foreach (var source in sourcesForWhichNoDiscovererIsAvailable)320                {321                    // Log a warning to logfile, not to the "default logger for discovery time messages".322                    EqtTrace.Warning(323                        "No test discoverer is registered to perform discovery for the type of test source '{0}'. Register a test discoverer for this source type and try again.",324                        source);325                }326            }327            return result;328        }329        /// <summary>330        /// Get assembly type to sources map.331        /// </summary>332        /// <param name="sources">Sources.</param>333        /// <param name="assemblyType">Assembly type.</param>334        /// <returns>Sources with mathcing assembly type.</returns>335        private static IDictionary<AssemblyType, IList<string>> GetAssemblyTypeToSoucesMap(IEnumerable<string> sources, IAssemblyProperties assemblyProperties)336        {337            var assemblyTypeToSoucesMap = new Dictionary<AssemblyType, IList<string>>()338            {339                { AssemblyType.Native, new List<string>()},340                { AssemblyType.Managed, new List<string>()},341                { AssemblyType.None, new List<string>()}342            };343            if (sources != null && sources.Any())344            {345                foreach (string source in sources)346                {347                    var sourcesList = IsAssembly(source) ?348                        assemblyTypeToSoucesMap[assemblyProperties.GetAssemblyType(source)] :349                        assemblyTypeToSoucesMap[AssemblyType.None];350                    sourcesList.Add(source);351                }352            }353            return assemblyTypeToSoucesMap;354        }355        /// <summary>356        /// Finds if a file is an assembly or not.357        /// </summary>358        /// <param name="filePath">File path.</param>359        /// <returns>True if file is an assembly.</returns>360        private static bool IsAssembly(string filePath)361        {362            var fileExtension = Path.GetExtension(filePath);363            return ".dll".Equals(fileExtension, StringComparison.OrdinalIgnoreCase) ||364                ".exe".Equals(fileExtension, StringComparison.OrdinalIgnoreCase);365        }366        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]367        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design",368            "CA1006:DoNotNestGenericTypesInMemberSignatures")]369        private static IEnumerable<LazyExtension<ITestDiscoverer, ITestDiscovererCapabilities>> GetDiscoverers(370            string extensionAssembly,371            bool throwOnError)372        {373            try374            {375                if (string.IsNullOrEmpty(extensionAssembly) || string.Equals(extensionAssembly, ObjectModel.Constants.UnspecifiedAdapterPath))376                {377                    // full discovery.378                    return TestDiscoveryExtensionManager.Create().Discoverers;379                }380                else381                {382                    return TestDiscoveryExtensionManager.GetDiscoveryExtensionManager(extensionAssembly).Discoverers;383                }...

GetDiscoverers

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.Discovery;7using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;8using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;9{10    {11        static void Main(string[] args)12        {13            var discovererEnumerator = new DiscovererEnumerator();14            var discoverers = discovererEnumerator.GetDiscoverers();15            foreach (var discoverer in discoverers)16            {17                Console.WriteLine(discoverer.Key);18            }19        }20    }21}22using System;23using System.Collections.Generic;24using System.Linq;25using System.Text;26using System.Threading.Tasks;27using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;28using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;29using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;30{31    {32        static void Main(string[] args)33        {34            var discovererEnumerator = new DiscovererEnumerator();35            var extensions = discovererEnumerator.GetExtensions();36            foreach (var extension in extensions)37            {38                Console.WriteLine(extension);39            }40        }41    }42}43using System;44using System.Collections.Generic;45using System.Linq;46using System.Text;47using System.Threading.Tasks;48using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;49using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;50using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;51{52    {53        static void Main(string[] args)54        {55            var discovererEnumerator = new DiscovererEnumerator();56            var extensions = discovererEnumerator.GetExtensions();57            foreach (var extension in extensions)58            {59                Console.WriteLine(extension);60            }61        }62    }63}64using System;65using System.Collections.Generic;66using System.Linq;67using System.Text;68using System.Threading.Tasks;69using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;70using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;71using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;72{

GetDiscoverers

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.Discovery;7using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;8using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;9{10    {11        static void Main(string[] args)12        {13            var discovererEnumerator = new DiscovererEnumerator();14            var discoverers = discovererEnumerator.GetDiscoverers();15            foreach (var discoverer in discoverers)16            {17                Console.WriteLine(discoverer);18            }19        }20    }21}22using System;23using System.Collections.Generic;24using System.Linq;25using System.Text;26using System.Threading.Tasks;27using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;28using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;29using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;30{31    {32        static void Main(string[] args)33        {34            var discovererEnumerator = new DiscovererEnumerator();35            var extensions = discovererEnumerator.GetExtensions();36            foreach (var extension in extensions)37            {38                Console.WriteLine(extension);39            }40        }41    }42}43using System;44using System.Collections.Generic;45using System.Linq;46using System.Text;47using System.Threading.Tasks;48using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;49using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;50using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;51{52    {53        static void Main(string[] args)54        {55            var discovererEnumerator = new DiscovererEnumerator();56            var extensions = discovererEnumerator.GetExtensions();57            foreach (var extension in extensions)58            {59                Console.WriteLine(extension);60            }61        }62    }63}64using System;65using System.Collections.Generic;66using System.Linq;67using System.Text;68using System.Threading.Tasks;69using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;70using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;71using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;72{

GetDiscoverers

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.Discovery;7using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;8using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;9{10    {11        static void Main(string[] args)12        {13            var discovererEnumerator = new DiscovererEnumerator();14            var discoverers = discovererEnumerator.GetDiscoverers();15            Console.WriteLine(discoverers.Count);16            Console.ReadLine();17        }18    }19}20using System;21using System.Collections.Generic;22using System.Linq;23using System.Text;24using System.Threading.Tasks;25using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Execution;26using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;27using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;28{29    {30        static void Main(string[] args)31        {32            var executorEnumerator = new ExecutorEnumerator();33            var executors = executorEnumerator.GetExecutor("executorUri");34            Console.WriteLine(executors.Count);35            Console.ReadLine();36        }37    }38}39using System;40using System.Collections.Generic;41using System.Linq;42using System.Text;43using System.Threading.Tasks;44using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Execution;45using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;46using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;47{48    {49        static void Main(string[] args)50        {51            var executorEnumerator = new ExecutorEnumerator();52            var executors = executorEnumerator.GetExecutors();53            Console.WriteLine(executors.Count);54            Console.ReadLine();55        }56    }57}58using System;59using System.Collections.Generic;60using System.Linq;61using System.Text;62using System.Threading.Tasks;63using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Engine;64using Microsoft.VisualStudio.TestPlatform.ObjectModel.Adapter;65using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;66{67    {68        static void Main(string[] args)69        {70            var engineExtensions = new EngineExtensions();

GetDiscoverers

Using AI Code Generation

1using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;2using Microsoft.VisualStudio.TestPlatform.ObjectModel;3using System;4using System.Collections.Generic;5using System.Linq;6using System.Text;7using System.Threading.Tasks;8{9    {10        static void Main(string[] args)11        {12            DiscovererEnumerator discovererEnumerator = new DiscovererEnumerator();13            IEnumerable<LazyExtension<ITestDiscoverer, ITestDiscovererCapabilities>> discoverers = discovererEnumerator.GetDiscoverers();14            foreach (var discoverer in discoverers)

GetDiscoverers

Using AI Code Generation

1using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;2using Microsoft.VisualStudio.TestPlatform.ObjectModel;3using System;4using System.Collections.Generic;5using System.Linq;6using System.Text;7using System.Threading.Tasks;8{9    {10        static void Main(string[] args)11        {12            var discovererEnumerator = new DiscovererEnumerator();13            var discoverers = discovererEnumerator.GetDiscoverers();14            foreach (var discoverer in discoverers)15            {16                Console.WriteLine("Discoverer: " + discoverer.Key);17                foreach (var fileExtension in discoverer.Value)18                {19                    Console.WriteLine("File Extension: " + fileExtension);20                }21            }22            Console.ReadLine();23        }24    }25}

GetDiscoverers

Using AI Code Generation

1using System;2using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;3using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;4using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;5{6    {7        static void Main(string[] args)8        {9            var discovererEnumerator = new DiscovererEnumerator();10            var discoverers = discovererEnumerator.GetDiscoverers(true);11            foreach (var discoverer in discoverers)12            {13                Console.WriteLine(discoverer.Value.Value);14            }15        }16    }17}18using System;19using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;20using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;21using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;22{23    {24        static void Main(string[] args)25        {26            var discovererEnumerator = new DiscovererEnumerator();27            var discoverers = discovererEnumerator.GetDiscoverers(true);28            foreach (var discoverer in discoverers)29            {30                var extension = discovererEnumerator.GetExtension(discoverer.Key);31                Console.WriteLine(extension);32            }33        }34    }35}36using System;37using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;38using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;39using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;40{41    {42        static void Main(string[] args)43        {44            var discovererEnumerator = new DiscovererEnumerator();45            var discoverers = discovererEnumerator.GetDiscoverers(true);46            foreach (var discoverer in discoverers)47            {48                var extension = discovererEnumerator.GetExtension(discoverer.Key);49                Console.WriteLine(extension);50            }51        }52    }53}54using System;55using System.Collections.Generic;56using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Discovery;57using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;58using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;59{60    {61        static void Main(string[] args)62        {63            var discovererEnumerator = new DiscovererEnumerator();

GetDiscoverers

Using AI Code Generation

1var discoverers = DiscovererEnumerator.GetDiscoverers();2foreach(var discoverer in discoverers)3{4    Console.WriteLine(discoverer.Key);5    Console.WriteLine(discoverer.Value);6}7var runners = DiscovererEnumerator.GetRunners();8foreach(var runner in runners)9{10    Console.WriteLine(runner.Key);11    Console.WriteLine(runner.Value);12}13var defaultDiscoverer = DiscovererEnumerator.GetDefaultDiscoverer();14Console.WriteLine(defaultDiscoverer);15var defaultRunner = DiscovererEnumerator.GetDefaultRunner();16Console.WriteLine(defaultRunner);17var extensions = DiscovererEnumerator.GetTestPlatformExtensions();18foreach(var extension in extensions)19{20    Console.WriteLine(extension.Key);21    Console.WriteLine(extension.Value);22}23var defaultExtension = DiscovererEnumerator.GetDefaultTestPlatformExtension();24Console.WriteLine(defaultExtension);25var extensions = DiscovererEnumerator.GetTestPlatformExtensions();26foreach(var extension in extensions)27{28    Console.WriteLine(extension.Key);29    Console.WriteLine(extension.Value);30}31var defaultExtension = DiscovererEnumerator.GetDefaultTestPlatformExtension();

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