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How to use TestSessionHandler class of TestPlatform.Playground package

Best Vstest code snippet using TestPlatform.Playground.TestSessionHandler

Program.cs

Source:Program.cs

...109        {110            CollectMetrics = true,111        };112        var r = new VsTestConsoleWrapper(console, consoleOptions);113        var sessionHandler = new TestSessionHandler();114#pragma warning disable CS0618 // Type or member is obsolete115        //// TestSessions116        // r.StartTestSession(sources, sourceSettings, sessionHandler);117#pragma warning restore CS0618 // Type or member is obsolete118        var discoveryHandler = new PlaygroundTestDiscoveryHandler(detailedOutput);119        var sw = Stopwatch.StartNew();120        // Discovery121        r.DiscoverTests(sources, sourceSettings, options, sessionHandler.TestSessionInfo, discoveryHandler);122        var discoveryDuration = sw.ElapsedMilliseconds;123        Console.WriteLine($"Discovery done in {discoveryDuration} ms");124        sw.Restart();125        // Run with test cases and custom testhost launcher126        r.RunTestsWithCustomTestHost(discoveryHandler.TestCases, sourceSettings, options, sessionHandler.TestSessionInfo, new TestRunHandler(detailedOutput), new DebuggerTestHostLauncher());127        //// Run with test cases and without custom testhost launcher128        //r.RunTests(discoveryHandler.TestCases, sourceSettings, options, sessionHandler.TestSessionInfo, new TestRunHandler(detailedOutput));129        //// Run with sources and custom testhost launcher130        //r.RunTestsWithCustomTestHost(sources, sourceSettings, options, sessionHandler.TestSessionInfo, new TestRunHandler(detailedOutput), new DebuggerTestHostLauncher());131        //// Run with sources132        //r.RunTests(sources, sourceSettings, options, sessionHandler.TestSessionInfo, new TestRunHandler(detailedOutput));133        var rd = sw.ElapsedMilliseconds;134        Console.WriteLine($"Discovery: {discoveryDuration} ms, Run: {rd} ms, Total: {discoveryDuration + rd} ms");135        Console.WriteLine($"Settings:\n{sourceSettings}");136    }137    public class PlaygroundTestDiscoveryHandler : ITestDiscoveryEventsHandler, ITestDiscoveryEventsHandler2138    {139        private int _testCasesCount;140        private readonly bool _detailedOutput;141        public PlaygroundTestDiscoveryHandler(bool detailedOutput)142        {143            _detailedOutput = detailedOutput;144        }145        public List<TestCase> TestCases { get; internal set; } = new List<TestCase>();146        public void HandleDiscoveredTests(IEnumerable<TestCase>? discoveredTestCases)147        {148            if (_detailedOutput)149            {150                Console.WriteLine($"[DISCOVERY.PROGRESS]");151                Console.WriteLine(WriteTests(discoveredTestCases));152            }153            _testCasesCount += discoveredTestCases.Count();154            if (discoveredTestCases != null) { TestCases.AddRange(discoveredTestCases); }155        }156        public void HandleDiscoveryComplete(long totalTests, IEnumerable<TestCase>? lastChunk, bool isAborted)157        {158            Console.WriteLine($"[DISCOVERY.COMPLETE] aborted? {isAborted}, tests count: {totalTests}");159            if (_detailedOutput)160            {161                Console.WriteLine("Last chunk:");162                Console.WriteLine(WriteTests(lastChunk));163            }164            if (lastChunk != null) { TestCases.AddRange(lastChunk); }165        }166        public void HandleDiscoveryComplete(DiscoveryCompleteEventArgs discoveryCompleteEventArgs, IEnumerable<TestCase>? lastChunk)167        {168            Console.WriteLine($"[DISCOVERY.COMPLETE] aborted? {discoveryCompleteEventArgs.IsAborted}, tests count: {discoveryCompleteEventArgs.TotalCount}, discovered count: {_testCasesCount}");169            if (_detailedOutput)170            {171                Console.WriteLine("Last chunk:");172                Console.WriteLine(WriteTests(lastChunk));173            }174            Console.WriteLine("Fully discovered:");175            Console.WriteLine(WriteSources(discoveryCompleteEventArgs.FullyDiscoveredSources));176            Console.WriteLine("Partially discovered:");177            Console.WriteLine(WriteSources(discoveryCompleteEventArgs.PartiallyDiscoveredSources));178            Console.WriteLine("Skipped discovery:");179            Console.WriteLine(WriteSources(discoveryCompleteEventArgs.SkippedDiscoveredSources));180            Console.WriteLine("Not discovered:");181            Console.WriteLine(WriteSources(discoveryCompleteEventArgs.NotDiscoveredSources));182            if (lastChunk != null) { TestCases.AddRange(lastChunk); }183        }184        public void HandleLogMessage(TestMessageLevel level, string? message)185        {186            Console.WriteLine($"[DISCOVERY.{level.ToString().ToUpper(CultureInfo.InvariantCulture)}] {message}");187        }188        public void HandleRawMessage(string rawMessage)189        {190            Console.WriteLine($"[DISCOVERY.MESSAGE] {rawMessage}");191        }192        private static string WriteTests(IEnumerable<TestCase>? testCases)193            => testCases?.Any() == true194                ? "\t" + string.Join("\n\t", testCases?.Select(r => r.Source + " " + r.DisplayName))195                : "\t<empty>";196        private static string WriteSources(IEnumerable<string>? sources)197            => sources?.Any() == true198                ? "\t" + string.Join("\n\t", sources)199                : "\t<empty>";200    }201    public class TestRunHandler : ITestRunEventsHandler202    {203        private readonly bool _detailedOutput;204        public TestRunHandler(bool detailedOutput)205        {206            _detailedOutput = detailedOutput;207        }208        public void HandleLogMessage(TestMessageLevel level, string? message)209        {210            Console.WriteLine($"[{level.ToString().ToUpper(CultureInfo.InvariantCulture)}]: {message}");211        }212        public void HandleRawMessage(string rawMessage)213        {214            if (_detailedOutput)215            {216                Console.WriteLine($"[RUN.MESSAGE]: {rawMessage}");217            }218        }219        public void HandleTestRunComplete(TestRunCompleteEventArgs testRunCompleteArgs, TestRunChangedEventArgs? lastChunkArgs, ICollection<AttachmentSet>? runContextAttachments, ICollection<string>? executorUris)220        {221            Console.WriteLine($"[RUN.COMPLETE]: err: {testRunCompleteArgs.Error}, lastChunk:");222            if (_detailedOutput)223            {224                Console.WriteLine(WriteTests(lastChunkArgs?.NewTestResults));225            }226        }227        public void HandleTestRunStatsChange(TestRunChangedEventArgs? testRunChangedArgs)228        {229            if (_detailedOutput)230            {231                Console.WriteLine($"[RUN.PROGRESS]");232                Console.WriteLine(WriteTests(testRunChangedArgs?.NewTestResults));233            }234        }235        public int LaunchProcessWithDebuggerAttached(TestProcessStartInfo testProcessStartInfo)236        {237            throw new NotImplementedException();238        }239        private static string WriteTests(IEnumerable<TestResult>? testResults)240            => WriteTests(testResults?.Select(t => t.TestCase));241        private static string WriteTests(IEnumerable<TestCase>? testCases)242            => testCases?.Any() == true243                ? "\t" + string.Join("\n\t", testCases.Select(r => r.DisplayName))244                : "\t<empty>";245    }246    internal class DebuggerTestHostLauncher : ITestHostLauncher2247    {248        public bool IsDebug => true;249        public bool AttachDebuggerToProcess(int pid)250        {251            return true;252        }253        public bool AttachDebuggerToProcess(int pid, CancellationToken cancellationToken)254        {255            return true;256        }257        public int LaunchTestHost(TestProcessStartInfo defaultTestHostStartInfo)258        {259            return 1;260        }261        public int LaunchTestHost(TestProcessStartInfo defaultTestHostStartInfo, CancellationToken cancellationToken)262        {263            return 1;264        }265    }266}267internal class TestSessionHandler : ITestSessionEventsHandler268{269    public TestSessionHandler() { }270    public TestSessionInfo? TestSessionInfo { get; private set; }271    public void HandleLogMessage(TestMessageLevel level, string? message)272    {273    }274    public void HandleRawMessage(string rawMessage)275    {276    }277    public void HandleStartTestSessionComplete(StartTestSessionCompleteEventArgs? eventArgs)278    {279        TestSessionInfo = eventArgs?.TestSessionInfo;280    }281    public void HandleStopTestSessionComplete(StopTestSessionCompleteEventArgs? eventArgs)282    {283    }...

TestSessionHandler

Using AI Code Generation

1using TestPlatform.Playground;2{3    {4        public void TestMethod()5        {6        }7    }8}9using TestPlatform.Playground;10{11    {12        public void TestMethod()13        {14        }15    }16}17using TestPlatform.Playground;18{19    {20        public void TestMethod()21        {22        }23    }24}

TestSessionHandler

Using AI Code Generation

1using TestPlatform.Playground;2{3    {4        public static void StartSession()5        {6            System.Diagnostics.Debug.WriteLine("StartSession");7        }8        public static void EndSession()9        {10            System.Diagnostics.Debug.WriteLine("EndSession");11        }12    }13}14using TestPlatform.Playground;15{16    {17        public static void StartSession()18        {19            System.Diagnostics.Debug.WriteLine("StartSession");20        }21        public static void EndSession()22        {23            System.Diagnostics.Debug.WriteLine("EndSession");24        }25    }26}27using TestPlatform.Playground;28{29    {30        public static void StartSession()31        {32            System.Diagnostics.Debug.WriteLine("StartSession");33        }34        public static void EndSession()35        {36            System.Diagnostics.Debug.WriteLine("EndSession");37        }38    }39}40using TestPlatform.Playground;41{42    {43        public static void StartSession()44        {45            System.Diagnostics.Debug.WriteLine("StartSession");46        }47        public static void EndSession()48        {49            System.Diagnostics.Debug.WriteLine("EndSession");50        }51    }52}53using TestPlatform.Playground;54{55    {56        public static void StartSession()57        {58            System.Diagnostics.Debug.WriteLine("StartSession");59        }60        public static void EndSession()61        {62            System.Diagnostics.Debug.WriteLine("EndSession");63        }64    }65}66using TestPlatform.Playground;67{68    {69        public static void StartSession()70        {71            System.Diagnostics.Debug.WriteLine("StartSession");72        }73        public static void EndSession()74        {75            System.Diagnostics.Debug.WriteLine("EndSession");76        }

TestSessionHandler

Using AI Code Generation

1using TestPlatform.Playground;2{3    {4        public static void StartSession()5        {6        }7    }8}9using TestPlatform.Playground;10{11    {12        public static void EndSession()13        {14        }15    }16}17using TestPlatform.Playground;18{19    {20        public static void StartSession()21        {22        }23    }24}25using TestPlatform.Playground;26{27    {28        public static void EndSession()29        {30        }31    }32}33using TestPlatform.Playground;34{35    {36        public static void StartSession()37        {38        }39    }40}41using TestPlatform.Playground;42{43    {44        public static void StartSession()45        {46        }47    }48}49using TestPlatform.Playground;50{51    {52        public static void EndSession()53        {54        }55    }56}57using TestPlatform.Playground;58{59    {60        public static void StartSession()61        {62        }63    }64}

TestSessionHandler

Using AI Code Generation

1using TestPlatform.Playground;2{3    public override void StartSession()4    {5    }6}7using TestPlatform.Playground;8{9    public override void StartSession()10    {11    }12}13using TestPlatform.Playground;14{15    public override void StartSession()16    {17    }18}19using TestPlatform.Playground;20{21    public override void StartSession()22    {23    }24}25using TestPlatform.Playground;26{27    public override void StartSession()28    {29    }30}31using TestPlatform.Playground;32{33    public override void StartSession()34    {35    }36}37using TestPlatform.Playground;38{39    public override void StartSession()40    {41    }42}43using TestPlatform.Playground;44{45    public override void StartSession()46    {47    }48}49using TestPlatform.Playground;50{51    public override void StartSession()

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