How to use RunEventHandler method of Microsoft.TestPlatform.TranslationLayer.E2ETest.CustomTestHostLauncher class

Best Vstest code snippet using Microsoft.TestPlatform.TranslationLayer.E2ETest.CustomTestHostLauncher.RunEventHandler

Program.cs

Source:Program.cs

...86        }87        static IEnumerable<TestResult> RunSelectedTests(IVsTestConsoleWrapper consoleWrapper, IEnumerable<TestCase> testCases)88        {89            var waitHandle = new AutoResetEvent(false);90            var handler = new RunEventHandler(waitHandle);91            consoleWrapper.RunTests(testCases, DefaultRunSettings, handler);92            waitHandle.WaitOne();93            return handler.TestResults;94        }95        static IEnumerable<TestResult> RunAllTests(IVsTestConsoleWrapper consoleWrapper, IEnumerable<string> sources)96        {97            var waitHandle = new AutoResetEvent(false);98            var handler = new RunEventHandler(waitHandle);99            consoleWrapper.RunTests(sources, DefaultRunSettings, handler);100            waitHandle.WaitOne();101            return handler.TestResults;102        }103        static IEnumerable<TestResult> RunAllTestsWithTestCaseFilter(IVsTestConsoleWrapper consoleWrapper, IEnumerable<string> sources)104        {105            var waitHandle = new AutoResetEvent(false);106            var handler = new RunEventHandler(waitHandle);107            consoleWrapper.RunTests(sources, DefaultRunSettings, new TestPlatformOptions() { TestCaseFilter = "FullyQualifiedName=UnitTestProject.UnitTest.PassingTest" }, handler);108            waitHandle.WaitOne();109            return handler.TestResults;110        }111        private static IEnumerable<TestResult> RunTestsWithCustomTestHostLauncher(IVsTestConsoleWrapper consoleWrapper, List<string> list)112        {113            var runCompleteSignal = new AutoResetEvent(false);114            var processExitedSignal = new AutoResetEvent(false);115            var handler = new RunEventHandler(runCompleteSignal);116            consoleWrapper.RunTestsWithCustomTestHost(list, DefaultRunSettings, handler, new CustomTestHostLauncher(() => processExitedSignal.Set()));117            // Test host exited signal comes after the run complete118            processExitedSignal.WaitOne();119            // At this point, run must have complete. Check signal for true120            Debug.Assert(runCompleteSignal.WaitOne());121            return handler.TestResults;122        }123    }124    public class CustomTestHostLauncher : ITestHostLauncher125    {126        private readonly Action callback;127        public CustomTestHostLauncher(Action callback)128        {129            this.callback = callback;130        }131        public bool IsDebug => false;132        public int LaunchTestHost(TestProcessStartInfo defaultTestHostStartInfo, CancellationToken cancellationToken)133        {134            var processInfo = new ProcessStartInfo(135                                  defaultTestHostStartInfo.FileName,136                                  defaultTestHostStartInfo.Arguments)137            {138                WorkingDirectory = defaultTestHostStartInfo.WorkingDirectory139            };140            var process = new Process { StartInfo = processInfo, EnableRaisingEvents = true };141            process.Start();142            if (process != null)143            {144                process.Exited += (sender, args) =>145                {146                    Console.WriteLine("Test host has exited. Signal run end.");147                    this.callback();148                };149                return process.Id;150            }151            throw new Exception("Process in invalid state.");152        }153        public int LaunchTestHost(TestProcessStartInfo defaultTestHostStartInfo)154        {155            return this.LaunchTestHost(defaultTestHostStartInfo, CancellationToken.None);156        }157    }158    public class DiscoveryEventHandler : ITestDiscoveryEventsHandler159    {160        private readonly AutoResetEvent waitHandle;161        public List<TestCase> DiscoveredTestCases { get; private set; }162        public DiscoveryEventHandler(AutoResetEvent waitHandle)163        {164            this.waitHandle = waitHandle;165            this.DiscoveredTestCases = new List<TestCase>();166        }167        public void HandleDiscoveredTests(IEnumerable<TestCase> discoveredTestCases)168        {169            Console.WriteLine("Discovery: " + discoveredTestCases.FirstOrDefault()?.DisplayName);170            if (discoveredTestCases != null)171            {172                this.DiscoveredTestCases.AddRange(discoveredTestCases);173            }174        }175        public void HandleDiscoveryComplete(long totalTests, IEnumerable<TestCase> lastChunk, bool isAborted)176        {177            if (lastChunk != null)178            {179                this.DiscoveredTestCases.AddRange(lastChunk);180            }181            Console.WriteLine("DiscoveryComplete");182            waitHandle.Set();183        }184        public void HandleLogMessage(TestMessageLevel level, string message)185        {186            Console.WriteLine("Discovery Message: " + message);187        }188        public void HandleRawMessage(string rawMessage)189        {190            // No op191        }192    }193    public class RunEventHandler : ITestRunEventsHandler2194    {195        private readonly AutoResetEvent waitHandle;196        public List<TestResult> TestResults { get; private set; }197        public RunEventHandler(AutoResetEvent waitHandle)198        {199            this.waitHandle = waitHandle;200            this.TestResults = new List<TestResult>();201        }202        public void HandleLogMessage(TestMessageLevel level, string message)203        {204            Console.WriteLine("Run Message: " + message);205        }206        public void HandleTestRunComplete(207            TestRunCompleteEventArgs testRunCompleteArgs,208            TestRunChangedEventArgs lastChunkArgs,209            ICollection<AttachmentSet> runContextAttachments,210            ICollection<string> executorUris)211        {...

RunEventHandler

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.TestPlatform.TranslationLayer.E2ETest;7{8    {9        static void Main(string[] args)10        {11            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();12            customTestHostLauncher.RunEventHandler(args);13        }14    }15}16using System;17using System.Collections.Generic;18using System.Linq;19using System.Text;20using System.Threading.Tasks;21using Microsoft.TestPlatform.TranslationLayer.E2ETest;22{23    {24        static void Main(string[] args)25        {26            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();27            customTestHostLauncher.RunEventHandler(args);28        }29    }30}31using System;32using System.Collections.Generic;33using System.Linq;34using System.Text;35using System.Threading.Tasks;36using Microsoft.TestPlatform.TranslationLayer.E2ETest;37{38    {39        static void Main(string[] args)40        {41            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();42            customTestHostLauncher.RunEventHandler(args);43        }44    }45}46using System;47using System.Collections.Generic;48using System.Linq;49using System.Text;50using System.Threading.Tasks;51using Microsoft.TestPlatform.TranslationLayer.E2ETest;52{53    {54        static void Main(string[] args)55        {56            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();57            customTestHostLauncher.RunEventHandler(args);58        }59    }60}61using System;62using System.Collections.Generic;63using System.Linq;64using System.Text;65using System.Threading.Tasks;

RunEventHandler

Using AI Code Generation

1using System;2using System.IO;3using System.Reflection;4using Microsoft.TestPlatform.TranslationLayer.E2ETest;5using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine;6using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client;7using Microsoft.VisualStudio.TestPlatform.ObjectModel;8using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;9using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;10using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;11using Microsoft.VisualStudio.TestPlatform.ObjectModel.Utilities;12{13    {14        public void Initialize(TestProcessStartInfo testHostStartInfo)15        {16            throw new NotImplementedException();17        }18        public void Close()19        {20            throw new NotImplementedException();21        }22        public int LaunchTestHost(TestProcessStartInfo testHostStartInfo, ITestRunEventsHandler eventsHandler)23        {24            throw new NotImplementedException();25        }26        {27            get { throw new NotImplementedException(); }28        }29        public void Cancel()30        {31            throw new NotImplementedException();32        }33        public event EventHandler<HostProviderEventArgs> HostLaunched;34        public event EventHandler<HostProviderEventArgs> HostExited;35        public event EventHandler<HostProviderEventArgs> HostExitedWithError;36        public void RunEventHandler(string testSource, string testCaseName)37        {38            var testHostStartInfo = new TestProcessStartInfo();39            testHostStartInfo.Arguments = string.Format("/TestCaseFilter:\"FullyQualifiedName={0}\"", testCaseName);40            testHostStartInfo.FileName = "vstest.console.exe";41            testHostStartInfo.WorkingDirectory = Path.GetDirectoryName(testSource);42            var eventsHandler = new CustomTestRunEventsHandler();43            var processHelper = new ProcessHelper();44            var processId = processHelper.LaunchProcess(testHostStartInfo, eventsHandler, false);45            eventsHandler.WaitForCompletion();46        }47    }48}49using System;50using System.Collections.Generic;51using System.Linq;52using System.Text;53using System.Threading.Tasks;54using Microsoft.TestPlatform.TranslationLayer.E2ETest;55using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine;56using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client;57using Microsoft.VisualStudio.TestPlatform.ObjectModel;58using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;59using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;60using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;61using Microsoft.VisualStudio.TestPlatform.ObjectModel.Utilities;

RunEventHandler

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using System.Reflection;7using Microsoft.TestPlatform.TranslationLayer.E2ETest;8{9    {10        static void Main(string[] args)11        {12            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();13            customTestHostLauncher.RunEventHandler(args);14        }15    }16}17using System;18using System.Collections.Generic;19using System.Linq;20using System.Text;21using System.Threading.Tasks;22using System.Reflection;23using Microsoft.TestPlatform.TranslationLayer.E2ETest;24{25    {26        static void Main(string[] args)27        {28            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();29            customTestHostLauncher.RunEventHandler(args);30        }31    }32}33using System;34using System.Collections.Generic;35using System.Linq;36using System.Text;37using System.Threading.Tasks;38using System.Reflection;39using Microsoft.TestPlatform.TranslationLayer.E2ETest;40{41    {42        static void Main(string[] args)43        {44            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();45            customTestHostLauncher.RunEventHandler(args);46        }47    }48}49using System;50using System.Collections.Generic;51using System.Linq;52using System.Text;53using System.Threading.Tasks;54using System.Reflection;55using Microsoft.TestPlatform.TranslationLayer.E2ETest;56{57    {58        static void Main(string[] args)59        {60            CustomTestHostLauncher customTestHostLauncher = new CustomTestHostLauncher();61            customTestHostLauncher.RunEventHandler(args);62        }63    }64}65using System;66using System.Collections.Generic;67using System.Linq;68using System.Text;69using System.Threading.Tasks;70using System.Reflection;

RunEventHandler

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Diagnostics;5    using System.IO;6    using System.Linq;7    using System.Reflection;8    using System.Runtime.InteropServices;9    using System.Text;10    using System.Threading.Tasks;11    using Microsoft.TestPlatform.TranslationLayer.E2ETest;12    using Microsoft.VisualStudio.TestPlatform.ObjectModel;13    using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;14    using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;15    {16        static void Main(string[] args)17        {18            var testHostLauncher = new CustomTestHostLauncher();19            var testHostProcess = testHostLauncher.LaunchTestHost(new TestProcessStartInfo20            {21                {22                    { "VSTEST_HOST_DEBUG", "1" }23                }24            });25            var testHostManager = new TestHostManager();26            var testHostManagerConnectionInfo = testHostManager.CreateConnection(testHostProcess.Id, 0);27            var testHostConnectionInfo = testHostLauncher.RunEventHandler(testHostManagerConnectionInfo, new TestProcessStartInfo28            {29                {30                    { "VSTEST_HOST_DEBUG", "1" }31                }32            });33            var testHostConnection = new TestHostConnection(testHostConnectionInfo);34            var testHostManagerConnection = new TestHostManagerConnection(testHostManagerConnectionInfo);35            testHostConnection.InitializeCommunication();36            testHostManagerConnection.InitializeCommunication();37            var runRequest = testHostConnection.CreateTestRunRequest();38            runRequest.ExecuteAsync().Wait();39            testHostConnection.Close();40            testHostManagerConnection.Close();41        }42    }43}

RunEventHandler

Using AI Code Generation

1using System;2using System.IO;3using System.Reflection;4using Microsoft.TestPlatform.TranslationLayer.E2ETest;5using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine;6using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client;7using Microsoft.VisualStudio.TestPlatform.ObjectModel;8using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;9using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;10using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;11using Microsoft.VisualStudio.TestPlatform.ObjectModel.Utilities;12{13    {14        public void Initialize(TestProcessStartInfo testHostStartInfo)15        {16            throw new NotImplementedException();17        }18        public void Close()19        {20            throw new NotImplementedException();21        }22        public int LaunchTestHost(TestProcessStartInfo testHostStartInfo, ITestRunEventsHandler eventsHandler)23        {24            throw new NotImplementedException();25        }26        {27            get { throw new NotImplementedException(); }28        }29        public void Cancel()30        {31            throw new NotImplementedException();32        }33        public event EventHandler<HostProviderEventArgs> HostLaunched;34        public event EventHandler<HostProviderEventArgs> HostExited;35        public event EventHandler<HostProviderEventArgs> HostExitedWithError;36        public void RunEventHandler(string testSource, string testCaseName)37        {38            var testHostStartInfo = new TestProcessStartInfo();39            testHostStartInfo.Arguments = string.Format("/TestCaseFilter:\"FullyQualifiedName={0}\"", testCaseName);40            testHostStartInfo.FileName = "vstest.console.exe";41            testHostStartInfo.WorkingDirectory = Path.GetDirectoryName(testSource);42            var eventsHandler = new CustomTestRunEventsHandler();43            var processHelper = new ProcessHelper();44            var processId = processHelper.LaunchProcess(testHostStartInfo, eventsHandler, false);45            eventsHandler.WaitForCompletion();46        }47    }48}49using System;50using System.Collections.Generic;51using System.Linq;52using System.Text;53using System.Threading.Tasks;54using Microsoft.TestPlatform.TranslationLayer.E2ETest;55using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine;56using Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client;57using Microsoft.VisualStudio.TestPlatform.ObjectModel;58using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;59using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;60using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;61using Microsoft.VisualStudio.TestPlatform.ObjectModel.Utilities;

RunEventHandler

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Diagnostics;5    using System.IO;6    using System.Linq;7    using System.Reflection;8    using System.Runtime.InteropServices;9    using System.Text;10    using System.Threading.Tasks;11    using Microsoft.TestPlatform.TranslationLayer.E2ETest;12    using Microsoft.VisualStudio.TestPlatform.ObjectModel;13    using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;14    using Microsoft.VisualStudio.TestPlatform.ObjectModel.Engine;15    {16        static void Main(string[] args)17        {18            var testHostLauncher = new CustomTestHostLauncher();19            var testHostProcess = testHostLauncher.LaunchTestHost(new TestProcessStartInfo20            {21                {22                    { "VSTEST_HOST_DEBUG", "1" }23                }24            });25            var testHostManager = new TestHostManager();26            var testHostManagerConnectionInfo = testHostManager.CreateConnection(testHostProcess.Id, 0);27            var testHostConnectionInfo = testHostLauncher.RunEventHandler(testHostManagerConnectionInfo, new TestProcessStartInfo28            {29                {30                    { "VSTEST_HOST_DEBUG", "1" }31                }32            });33            var testHostConnection = new TestHostConnection(testHostConnectionInfo);34            var testHostManagerConnection = new TestHostManagerConnection(testHostManagerConnectionInfo);35            testHostConnection.InitializeCommunication();36            testHostManagerConnection.InitializeCommunication();37            var runRequest = testHostConnection.CreateTestRunRequest();38            runRequest.ExecuteAsync().Wait();39            testHostConnection.Close();40            testHostManagerConnection.Close();41        }42    }43}

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.