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How to use StartTestSession method of Microsoft.VisualStudio.TestPlatform.Client.TestPlatform class

Best Vstest code snippet using Microsoft.VisualStudio.TestPlatform.Client.TestPlatform.StartTestSession

DesignModeClient.cs

Source:DesignModeClient.cs

...152                                var extensionPaths = this.communicationManager.DeserializePayload<IEnumerable<string>>(message);153                                testRequestManager.InitializeExtensions(extensionPaths, skipExtensionFilters: true);154                                break;155                            }156                        case MessageType.StartTestSession:157                            {158                                var testSessionPayload = this.communicationManager.DeserializePayload<StartTestSessionPayload>(message);159                                this.StartTestSession(testSessionPayload, testRequestManager);160                                break;161                            }162                        case MessageType.StopTestSession:163                            {164                                var testSessionInfo = this.communicationManager.DeserializePayload<TestSessionInfo>(message);165                                this.StopTestSession(testSessionInfo);166                                break;167                            }168                        case MessageType.StartDiscovery:169                            {170                                var discoveryPayload = this.dataSerializer.DeserializePayload<DiscoveryRequestPayload>(message);171                                this.StartDiscovery(discoveryPayload, testRequestManager);172                                break;173                            }174                        case MessageType.GetTestRunnerProcessStartInfoForRunAll:175                        case MessageType.GetTestRunnerProcessStartInfoForRunSelected:176                            {177                                var testRunPayload =178                                    this.communicationManager.DeserializePayload<TestRunRequestPayload>(179                                        message);180                                this.StartTestRun(testRunPayload, testRequestManager, shouldLaunchTesthost: true);181                                break;182                            }183                        case MessageType.TestRunAllSourcesWithDefaultHost:184                        case MessageType.TestRunSelectedTestCasesDefaultHost:185                            {186                                var testRunPayload =187                                    this.communicationManager.DeserializePayload<TestRunRequestPayload>(188                                        message);189                                this.StartTestRun(testRunPayload, testRequestManager, shouldLaunchTesthost: false);190                                break;191                            }192                        case MessageType.TestRunAttachmentsProcessingStart:193                            {194                                var testRunAttachmentsProcessingPayload =195                                    this.communicationManager.DeserializePayload<TestRunAttachmentsProcessingPayload>(message);196                                this.StartTestRunAttachmentsProcessing(testRunAttachmentsProcessingPayload, testRequestManager);197                                break;198                            }199                        case MessageType.CancelDiscovery:200                            {201                                testRequestManager.CancelDiscovery();202                                break;203                            }204                        case MessageType.CancelTestRun:205                            {206                                testRequestManager.CancelTestRun();207                                break;208                            }209                        case MessageType.AbortTestRun:210                            {211                                testRequestManager.AbortTestRun();212                                break;213                            }214                        case MessageType.TestRunAttachmentsProcessingCancel:215                            {216                                testRequestManager.CancelTestRunAttachmentsProcessing();217                                break;218                            }219                        case MessageType.CustomTestHostLaunchCallback:220                            {221                                this.onCustomTestHostLaunchAckReceived?.Invoke(message);222                                break;223                            }224                        case MessageType.EditorAttachDebuggerCallback:225                            {226                                this.onAttachDebuggerAckRecieved?.Invoke(message);227                                break;228                            }229                        case MessageType.SessionEnd:230                            {231                                EqtTrace.Info("DesignModeClient: Session End message received from server. Closing the connection.");232                                isSessionEnd = true;233                                this.Dispose();234                                break;235                            }236                        default:237                            {238                                EqtTrace.Info("DesignModeClient: Invalid Message received: {0}", message);239                                break;240                            }241                    }242                }243                catch (Exception ex)244                {245                    EqtTrace.Error("DesignModeClient: Error processing request: {0}", ex);246                    isSessionEnd = true;247                    this.Dispose();248                }249            }250            while (!isSessionEnd);251        }252        /// <summary>253        /// Send a custom host launch message to IDE254        /// </summary>255        /// <param name="testProcessStartInfo">256        /// The test Process Start Info.257        /// </param>258        /// <param name="cancellationToken">259        /// The cancellation token.260        /// </param>261        /// <returns>262        /// The <see cref="int"/>.263        /// </returns>264        public int LaunchCustomHost(TestProcessStartInfo testProcessStartInfo, CancellationToken cancellationToken)265        {266            lock (this.lockObject)267            {268                var waitHandle = new AutoResetEvent(false);269                Message ackMessage = null;270                this.onCustomTestHostLaunchAckReceived = (ackRawMessage) =>271                {272                    ackMessage = ackRawMessage;273                    waitHandle.Set();274                };275                this.communicationManager.SendMessage(MessageType.CustomTestHostLaunch, testProcessStartInfo);276                // LifeCycle of the TP through DesignModeClient is maintained by the IDEs or user-facing-clients like LUTs, who call TestPlatform277                // TP is handing over the control of launch to these IDEs and so, TP has to wait indefinite278                // Even if TP has a timeout here, there is no way TP can abort or stop the thread/task that is hung in IDE or LUT279                // Even if TP can abort the API somehow, TP is essentially putting IDEs or Clients in inconsistent state without having info on280                // Since the IDEs own user-UI-experience here, TP will let the custom host launch as much time as IDEs define it for their users281                WaitHandle.WaitAny(new WaitHandle[] { waitHandle, cancellationToken.WaitHandle });282                cancellationToken.ThrowTestPlatformExceptionIfCancellationRequested();283                this.onCustomTestHostLaunchAckReceived = null;284                var ackPayload = this.dataSerializer.DeserializePayload<CustomHostLaunchAckPayload>(ackMessage);285                if (ackPayload.HostProcessId > 0)286                {287                    return ackPayload.HostProcessId;288                }289                else290                {291                    throw new TestPlatformException(ackPayload.ErrorMessage);292                }293            }294        }295        /// <inheritdoc/>296        public bool AttachDebuggerToProcess(int pid, CancellationToken cancellationToken)297        {298            // If an attach request is issued but there is no support for attaching on the other299            // side of the communication channel, we simply return and let the caller know the300            // request failed.301            if (this.protocolConfig.Version < ObjectModel.Constants.MinimumProtocolVersionWithDebugSupport)302            {303                return false;304            }305            lock (this.lockObject)306            {307                var waitHandle = new AutoResetEvent(false);308                Message ackMessage = null;309                this.onAttachDebuggerAckRecieved = (ackRawMessage) =>310                {311                    ackMessage = ackRawMessage;312                    waitHandle.Set();313                };314                this.communicationManager.SendMessage(MessageType.EditorAttachDebugger, pid);315                WaitHandle.WaitAny(new WaitHandle[] { waitHandle, cancellationToken.WaitHandle });316                cancellationToken.ThrowTestPlatformExceptionIfCancellationRequested();317                this.onAttachDebuggerAckRecieved = null;318                var ackPayload = this.dataSerializer.DeserializePayload<EditorAttachDebuggerAckPayload>(ackMessage);319                if (!ackPayload.Attached)320                {321                    EqtTrace.Warning(ackPayload.ErrorMessage);322                }323                return ackPayload.Attached;324            }325        }326        /// <summary>327        /// Send the raw messages to IDE328        /// </summary>329        /// <param name="rawMessage"></param>330        public void SendRawMessage(string rawMessage)331        {332            this.communicationManager.SendRawMessage(rawMessage);333        }334        /// <inheritdoc />335        public void SendTestMessage(TestMessageLevel level, string message)336        {337            var payload = new TestMessagePayload { MessageLevel = level, Message = message };338            this.communicationManager.SendMessage(MessageType.TestMessage, payload);339        }340        /// <summary>341        /// Sends the test session logger warning and error messages to IDE; 342        /// </summary>343        /// <param name="sender"></param>344        /// <param name="e"></param>345        public void TestRunMessageHandler(object sender, TestRunMessageEventArgs e)346        {347            // save into trace log and send the message to the IDE348            //349            // there is a mismatch between log levels that VS uses and that TP350            // uses. In VS you can choose Trace level which will enable Test platform351            // logs on Verbose level. Below we report Errors and warnings always to the 352            // IDE no matter what the level of VS logging is, but Info only when the Eqt trace 353            // info level is enabled (so only when VS enables Trace logging)354            switch (e.Level)355            {356                case TestMessageLevel.Error:357                    EqtTrace.Error(e.Message);358                    SendTestMessage(e.Level, e.Message);359                    break;360                case TestMessageLevel.Warning:361                    EqtTrace.Warning(e.Message);362                    SendTestMessage(e.Level, e.Message);363                    break;364                case TestMessageLevel.Informational:365                    EqtTrace.Info(e.Message);366                    if (EqtTrace.IsInfoEnabled)367                        SendTestMessage(e.Level, e.Message);368                    break;369               370                default:371                    throw new NotSupportedException($"Test message level '{e.Level}' is not supported.");372            }373        }374        private void StartTestRun(TestRunRequestPayload testRunPayload, ITestRequestManager testRequestManager, bool shouldLaunchTesthost)375        {376            Task.Run(377                () =>378                {379                    try380                    {381                        testRequestManager.ResetOptions();382                        // We must avoid re-launching the test host if the test run payload already383                        // contains test session info. Test session info being present is an indicative384                        // of an already running test host spawned by a start test session call.385                        var customLauncher =386                            shouldLaunchTesthost && testRunPayload.TestSessionInfo == null387                                ? DesignModeTestHostLauncherFactory.GetCustomHostLauncherForTestRun(388                                    this,389                                    testRunPayload.DebuggingEnabled)390                                : null;391                        testRequestManager.RunTests(testRunPayload, customLauncher, new DesignModeTestEventsRegistrar(this), this.protocolConfig);392                    }393                    catch (Exception ex)394                    {395                        EqtTrace.Error("DesignModeClient: Exception in StartTestRun: " + ex);396                        var testMessagePayload = new TestMessagePayload { MessageLevel = TestMessageLevel.Error, Message = ex.ToString() };397                        this.communicationManager.SendMessage(MessageType.TestMessage, testMessagePayload);398                        var runCompletePayload = new TestRunCompletePayload()399                        {400                            TestRunCompleteArgs = new TestRunCompleteEventArgs(null, false, true, ex, null, TimeSpan.MinValue),401                            LastRunTests = null402                        };403                        // Send run complete to translation layer404                        this.communicationManager.SendMessage(MessageType.ExecutionComplete, runCompletePayload);405                    }406                });407        }408        private void StartDiscovery(DiscoveryRequestPayload discoveryRequestPayload, ITestRequestManager testRequestManager)409        {410            Task.Run(411                () =>412                {413                    try414                    {415                        testRequestManager.ResetOptions();416                        testRequestManager.DiscoverTests(discoveryRequestPayload, new DesignModeTestEventsRegistrar(this), this.protocolConfig);417                    }418                    catch (Exception ex)419                    {420                        EqtTrace.Error("DesignModeClient: Exception in StartDiscovery: " + ex);421                        var testMessagePayload = new TestMessagePayload { MessageLevel = TestMessageLevel.Error, Message = ex.ToString() };422                        this.communicationManager.SendMessage(MessageType.TestMessage, testMessagePayload);423                        var payload = new DiscoveryCompletePayload()424                        {425                            IsAborted = true,426                            LastDiscoveredTests = null,427                            TotalTests = -1428                        };429                        // Send run complete to translation layer430                        this.communicationManager.SendMessage(MessageType.DiscoveryComplete, payload);431                    }432                });433        }434        private void StartTestRunAttachmentsProcessing(TestRunAttachmentsProcessingPayload attachmentsProcessingPayload, ITestRequestManager testRequestManager)435        {436            Task.Run(437                () =>438                {439                    try440                    {441                        testRequestManager.ProcessTestRunAttachments(attachmentsProcessingPayload, new TestRunAttachmentsProcessingEventsHandler(this.communicationManager), this.protocolConfig);442                    }443                    catch (Exception ex)444                    {445                        EqtTrace.Error("DesignModeClient: Exception in StartTestRunAttachmentsProcessing: " + ex);446                        var testMessagePayload = new TestMessagePayload { MessageLevel = TestMessageLevel.Error, Message = ex.ToString() };447                        this.communicationManager.SendMessage(MessageType.TestMessage, testMessagePayload);448                        var payload = new TestRunAttachmentsProcessingCompletePayload()449                        {450                            Attachments = null451                        };452                        // Send run complete to translation layer453                        this.communicationManager.SendMessage(MessageType.TestRunAttachmentsProcessingComplete, payload);454                    }455                });456        }457        private void StartTestSession(StartTestSessionPayload payload, ITestRequestManager requestManager)458        {459            Task.Run(() =>460            {461                var eventsHandler = new TestSessionEventsHandler(this.communicationManager);462                try463                {464                    var customLauncher = payload.HasCustomHostLauncher465                        ? DesignModeTestHostLauncherFactory.GetCustomHostLauncherForTestRun(this, payload.IsDebuggingEnabled)466                        : null;467                    requestManager.ResetOptions();468                    requestManager.StartTestSession(payload, customLauncher, eventsHandler, this.protocolConfig);469                }470                catch (Exception ex)471                {472                    EqtTrace.Error("DesignModeClient: Exception in StartTestSession: " + ex);473                    eventsHandler.HandleLogMessage(TestMessageLevel.Error, ex.ToString());474                    eventsHandler.HandleStartTestSessionComplete(null);475                }476            });477        }478        private void StopTestSession(TestSessionInfo testSessionInfo)479        {480            Task.Run(() =>481            {482                var eventsHandler = new TestSessionEventsHandler(this.communicationManager);483                try484                {485                    var stopped = TestSessionPool.Instance.KillSession(testSessionInfo);486                    eventsHandler.HandleStopTestSessionComplete(testSessionInfo, stopped);487                }488                catch (Exception ex)...

ITestRequestManager.cs

Source:ITestRequestManager.cs

...73        /// <param name="payload">The start test session payload.</param>74        /// <param name="testHostLauncher">The custom test host launcher.</param>75        /// <param name="eventsHandler">The events handler.</param>76        /// <param name="protocolConfig">Protocol related information.</param>77        void StartTestSession(78            StartTestSessionPayload payload,79            ITestHostLauncher testHostLauncher,80            ITestSessionEventsHandler eventsHandler,81            ProtocolConfig protocolConfig);82        /// <summary>83        /// Cancel the current test run request.84        /// </summary>85        void CancelTestRun();86        /// <summary>87        /// Abort the current test run.88        /// </summary>89        void AbortTestRun();90        /// <summary>91        /// Cancels the current discovery request.92        /// </summary>...

StartTestSession

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.VisualStudio.TestPlatform.ObjectModel;7using Microsoft.VisualStudio.TestPlatform.Client;8using Microsoft.VisualStudio.TestPlatform.Common;9using Microsoft.VisualStudio.TestPlatform.Common.Interfaces;10using Microsoft.VisualStudio.TestPlatform.Common.Logging;11using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;12using Microsoft.VisualStudio.TestPlatform.ObjectModel.Logging;13{14    {15        static void Main(string[] args)16        {17            TestPlatform testPlatform = new TestPlatform();18            TestSessionInfo testSessionInfo = testPlatform.StartTestSession();19            Console.WriteLine("TestSessionInfo: " + testSessionInfo);20            Console.ReadLine();21        }22    }23}

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