Enable nullable on ObjectModel

playground/TestPlatform.Playground/Program.cs

@@ -42,7 +42,7 @@ static void Main(string[] args)
         var sourceSettings = $$$"""
             <RunSettings>
                 <RunConfiguration>
-           
+
                     <!-- <MaxCpuCount>1</MaxCpuCount> -->
                     <!-- <TargetPlatform>x86</TargetPlatform> -->
                     <!-- <TargetFrameworkVersion>net472</TargetFrameworkVersion> -->
@@ -135,23 +135,23 @@ public class PlaygroundTestDiscoveryHandler : ITestDiscoveryEventsHandler, ITest
 
         public List<TestCase> TestCases { get; internal set; } = new List<TestCase>();
 
-        public void HandleDiscoveredTests(IEnumerable<TestCase> discoveredTestCases)
+        public void HandleDiscoveredTests(IEnumerable<TestCase>? discoveredTestCases)
         {
             Console.WriteLine($"[DISCOVERY.PROGRESS]");
             Console.WriteLine(WriteTests(discoveredTestCases));
             _testCasesCount += discoveredTestCases.Count();
             if (discoveredTestCases != null) { TestCases.AddRange(discoveredTestCases); }
         }
 
-        public void HandleDiscoveryComplete(long totalTests, IEnumerable<TestCase> lastChunk, bool isAborted)
+        public void HandleDiscoveryComplete(long totalTests, IEnumerable<TestCase>? lastChunk, bool isAborted)
         {
             Console.WriteLine($"[DISCOVERY.COMPLETE] aborted? {isAborted}, tests count: {totalTests}");
             Console.WriteLine("Last chunk:");
             Console.WriteLine(WriteTests(lastChunk));
             if (lastChunk != null) { TestCases.AddRange(lastChunk); }
         }
 
-        public void HandleDiscoveryComplete(DiscoveryCompleteEventArgs discoveryCompleteEventArgs, IEnumerable<TestCase> lastChunk)
+        public void HandleDiscoveryComplete(DiscoveryCompleteEventArgs discoveryCompleteEventArgs, IEnumerable<TestCase>? lastChunk)
         {
             Console.WriteLine($"[DISCOVERY.COMPLETE] aborted? {discoveryCompleteEventArgs.IsAborted}, tests count: {discoveryCompleteEventArgs.TotalCount}, discovered count: {_testCasesCount}");
             Console.WriteLine("Last chunk:");
@@ -167,7 +167,7 @@ public void HandleDiscoveryComplete(DiscoveryCompleteEventArgs discoveryComplete
             if (lastChunk != null) { TestCases.AddRange(lastChunk); }
         }
 
-        public void HandleLogMessage(TestMessageLevel level, string message)
+        public void HandleLogMessage(TestMessageLevel level, string? message)
         {
             Console.WriteLine($"[DISCOVERY.{level.ToString().ToUpper()}] {message}");
         }
@@ -177,12 +177,12 @@ public void HandleRawMessage(string rawMessage)
             Console.WriteLine($"[DISCOVERY.MESSAGE] {rawMessage}");
         }
 
-        private static string WriteTests(IEnumerable<TestCase> testCases)
+        private static string WriteTests(IEnumerable<TestCase>? testCases)
             => testCases?.Any() == true
-                ? "\t" + string.Join("\n\t", testCases.Select(r => r.Source + " " + r.DisplayName))
+                ? "\t" + string.Join("\n\t", testCases?.Select(r => r.Source + " " + r.DisplayName))
                 : "\t<empty>";
 
-        private static string WriteSources(IEnumerable<string> sources)
+        private static string WriteSources(IEnumerable<string>? sources)
             => sources?.Any() == true
                 ? "\t" + string.Join("\n\t", sources)
                 : "\t<empty>";
@@ -195,7 +195,7 @@ public TestRunHandler()
         {
         }
 
-        public void HandleLogMessage(TestMessageLevel level, string message)
+        public void HandleLogMessage(TestMessageLevel level, string? message)
         {
             Console.WriteLine($"[{level.ToString().ToUpper()}]: {message}");
         }
@@ -205,16 +205,16 @@ public void HandleRawMessage(string rawMessage)
             Console.WriteLine($"[RUN.MESSAGE]: {rawMessage}");
         }
 
-        public void HandleTestRunComplete(TestRunCompleteEventArgs testRunCompleteArgs, TestRunChangedEventArgs lastChunkArgs, ICollection<AttachmentSet> runContextAttachments, ICollection<string> executorUris)
+        public void HandleTestRunComplete(TestRunCompleteEventArgs testRunCompleteArgs, TestRunChangedEventArgs? lastChunkArgs, ICollection<AttachmentSet>? runContextAttachments, ICollection<string>? executorUris)
         {
             Console.WriteLine($"[RUN.COMPLETE]: err: {testRunCompleteArgs.Error}, lastChunk:");
             Console.WriteLine(WriteTests(lastChunkArgs?.NewTestResults));
         }
 
-        public void HandleTestRunStatsChange(TestRunChangedEventArgs testRunChangedArgs)
+        public void HandleTestRunStatsChange(TestRunChangedEventArgs? testRunChangedArgs)
         {
             Console.WriteLine($"[RUN.PROGRESS]");
-            Console.WriteLine(WriteTests(testRunChangedArgs.NewTestResults));
+            Console.WriteLine(WriteTests(testRunChangedArgs?.NewTestResults));
         }
 
         public int LaunchProcessWithDebuggerAttached(TestProcessStartInfo testProcessStartInfo)
@@ -261,7 +261,7 @@ internal class TestSessionHandler : ITestSessionEventsHandler
 {
     public TestSessionInfo? TestSessionInfo { get; private set; }
 
-    public void HandleLogMessage(TestMessageLevel level, string message)
+    public void HandleLogMessage(TestMessageLevel level, string? message)
     {
 
     }
@@ -271,12 +271,12 @@ public void HandleRawMessage(string rawMessage)
 
     }
 
-    public void HandleStartTestSessionComplete(StartTestSessionCompleteEventArgs eventArgs)
+    public void HandleStartTestSessionComplete(StartTestSessionCompleteEventArgs? eventArgs)
     {
-        TestSessionInfo = eventArgs.TestSessionInfo;
+        TestSessionInfo = eventArgs?.TestSessionInfo;
     }
 
-    public void HandleStopTestSessionComplete(StopTestSessionCompleteEventArgs eventArgs)
+    public void HandleStopTestSessionComplete(StopTestSessionCompleteEventArgs? eventArgs)
     {
 
     }

src/DataCollectors/Microsoft.TestPlatform.Extensions.EventLogCollector/BannedSymbols.txt

@@ -1,4 +1,4 @@
-M:System.Diagnostics.Debug.Assert(System.Boolean); Use 'TPDebug.Assert' instead
-M:System.Diagnostics.Debug.Assert(System.Boolean,System.String); Use 'TPDebug.Assert' instead
+M:System.Diagnostics.TPDebug.Assert(System.Boolean); Use 'TPDebug.Assert' instead
+M:System.Diagnostics.TPDebug.Assert(System.Boolean,System.String); Use 'TPDebug.Assert' instead
 M:System.String.IsNullOrEmpty(System.String); Use 'StringUtils.IsNullOrEmpty' instead
 M:System.String.IsNullOrWhiteSpace(System.String); Use 'StringUtils.IsNullOrWhiteSpace' instead

src/DataCollectors/Microsoft.TestPlatform.Extensions.EventLogCollector/EventLogContainer.cs

@@ -24,8 +24,7 @@ internal class EventLogContainer : IEventLogContainer
     private readonly int _maxLogEntries;
 
     private readonly DataCollectionLogger _dataCollectionLogger;
-
-    private readonly DataCollectionContext? _dataCollectionContext;
+    private readonly DataCollectionContext _dataCollectionContext;
 
     /// <summary>
     /// Keeps track of if we are disposed.
@@ -53,7 +52,7 @@ internal class EventLogContainer : IEventLogContainer
     /// <param name="dataCollectionContext">
     /// Data Collection Context
     /// </param>
-    public EventLogContainer(string eventLogName, ISet<string>? eventSources, ISet<EventLogEntryType> entryTypes, int maxLogEntries, DataCollectionLogger dataCollectionLogger, DataCollectionContext? dataCollectionContext)
+    public EventLogContainer(string eventLogName, ISet<string>? eventSources, ISet<EventLogEntryType> entryTypes, int maxLogEntries, DataCollectionLogger dataCollectionLogger, DataCollectionContext dataCollectionContext)
     {
         EventLog = new EventLog(eventLogName);
         EventLog.EnableRaisingEvents = true;

src/DataCollectors/Microsoft.TestPlatform.Extensions.EventLogCollector/EventLogDataCollector.cs

@@ -147,13 +147,13 @@ internal EventLogDataCollector(IFileHelper fileHelper)
     /// Used by the data collector to send warnings, errors, or other messages
     /// </param>
     /// <param name="dataCollectionEnvironmentContext">Provides contextual information about the agent environment</param>
-    [MemberNotNull(nameof(_events), nameof(_dataSink), nameof(_logger))]
+    [MemberNotNull(nameof(_events), nameof(_dataSink), nameof(_logger), nameof(_dataCollectorContext))]
     public override void Initialize(
         XmlElement? configurationElement,
         DataCollectionEvents events,
         DataCollectionSink dataSink,
         DataCollectionLogger logger,
-        DataCollectionEnvironmentContext dataCollectionEnvironmentContext)
+        DataCollectionEnvironmentContext? dataCollectionEnvironmentContext)
     {
         ValidateArg.NotNull(events, nameof(events));
         ValidateArg.NotNull(dataSink, nameof(dataSink));
@@ -163,7 +163,7 @@ public override void Initialize(
         _events = events;
         _dataSink = dataSink;
         _logger = logger;
-        _dataCollectorContext = dataCollectionEnvironmentContext.SessionDataCollectionContext;
+        _dataCollectorContext = dataCollectionEnvironmentContext!.SessionDataCollectionContext;
 
         // Load the configuration
         CollectorNameValueConfigurationManager nameValueSettings =
@@ -173,7 +173,7 @@ public override void Initialize(
         ConfigureEventSources(nameValueSettings);
         ConfigureEntryTypes(nameValueSettings);
         ConfigureMaxEntries(nameValueSettings);
-        ConfigureEventLogNames(nameValueSettings);
+        ConfigureEventLogNames(nameValueSettings, _dataCollectorContext);
 
         // Register for events
         events.SessionStart += _sessionStartEventHandler;
@@ -183,6 +183,7 @@ public override void Initialize(
     }
 
     #endregion
+
     /// <summary>
     /// The write event logs.
     /// </summary>
@@ -444,7 +445,7 @@ private void WriteCollectedEventLogEntries(
     }
 
     [MemberNotNull(nameof(EventLogNames))]
-    private void ConfigureEventLogNames(CollectorNameValueConfigurationManager collectorNameValueConfigurationManager)
+    private void ConfigureEventLogNames(CollectorNameValueConfigurationManager collectorNameValueConfigurationManager, DataCollectionContext dataCollectorContext)
     {
         EventLogNames = new HashSet<string>();
         string? eventLogs = collectorNameValueConfigurationManager[EventLogConstants.SettingEventLogs];
@@ -476,7 +477,7 @@ private void ConfigureEventLogNames(CollectorNameValueConfigurationManager colle
                         EntryTypes,
                         int.MaxValue,
                         _logger,
-                        _dataCollectorContext);
+                        dataCollectorContext);
                     _eventLogContainerMap.Add(eventLogName, eventLogContainer);
                 }
 
@@ -485,7 +486,7 @@ private void ConfigureEventLogNames(CollectorNameValueConfigurationManager colle
             catch (Exception ex)
             {
                 _logger.LogError(
-                    _dataCollectorContext,
+                    dataCollectorContext,
                     new EventLogCollectorException(string.Format(CultureInfo.CurrentCulture, Resource.ReadError, eventLogName, Environment.MachineName), ex));
             }
         }

src/DataCollectors/Microsoft.TestPlatform.Extensions.EventLogCollector/PublicAPI/PublicAPI.Shipped.txt

@@ -2,4 +2,4 @@
 Microsoft.TestPlatform.Extensions.EventLogCollector.EventLogDataCollector
 Microsoft.TestPlatform.Extensions.EventLogCollector.EventLogDataCollector.EventLogDataCollector() -> void
 override Microsoft.TestPlatform.Extensions.EventLogCollector.EventLogDataCollector.Dispose(bool disposing) -> void
-override Microsoft.TestPlatform.Extensions.EventLogCollector.EventLogDataCollector.Initialize(System.Xml.XmlElement? configurationElement, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionEvents! events, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionSink! dataSink, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionLogger! logger, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionEnvironmentContext! dataCollectionEnvironmentContext) -> void
+override Microsoft.TestPlatform.Extensions.EventLogCollector.EventLogDataCollector.Initialize(System.Xml.XmlElement? configurationElement, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionEvents! events, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionSink! dataSink, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionLogger! logger, Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.DataCollectionEnvironmentContext? dataCollectionEnvironmentContext) -> void

src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameUtilities/ManagedNameParser.cs

@@ -2,7 +2,6 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Globalization;
 
 using Microsoft.TestPlatform.AdapterUtilities.Helpers;
@@ -116,7 +115,7 @@ private static int ParseMethodName(string managedMethodName, int start, out stri
     // parse arity in the form `nn where nn is an integer value.
     private static int ParseArity(string managedMethodName, int start, out int arity)
     {
-        Debug.Assert(managedMethodName[start] == '`');
+        TPDebug.Assert(managedMethodName[start] == '`');
 
         int i = start + 1; // skip initial '`' char
         for (; i < managedMethodName.Length; i++)
@@ -137,7 +136,7 @@ private static int ParseParameterTypeList(string managedMethodName, int start, o
         {
             return start;
         }
-        Debug.Assert(managedMethodName[start] == '(');
+        TPDebug.Assert(managedMethodName[start] == '(');
 
         var types = new List<string>();
 

src/Microsoft.TestPlatform.AdapterUtilities/Microsoft.TestPlatform.AdapterUtilities.csproj

@@ -76,5 +76,28 @@
     <AdditionalFiles Condition=" '$(TargetFramework)' != 'netstandard1.0' AND '$(TargetFramework)' != 'uap10.0' " Include="PublicAPI\net\PublicAPI.Unshipped.txt" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Compile Include="..\..\shared\NullableAttributes.cs" Link="NullableAttributes.cs" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="NullableHelpers.tt">
+      <LastGenOutput>NullableHelpers.cs</LastGenOutput>
+      <Generator>TextTemplatingFileGenerator</Generator>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="NullableHelpers.cs">
+      <DesignTime>True</DesignTime>
+      <AutoGen>True</AutoGen>
+      <DependentUpon>NullableHelpers.tt</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
   <Import Project="$(TestPlatformRoot)scripts\build\TestPlatform.targets" />
 </Project>

src/Microsoft.TestPlatform.AdapterUtilities/NullableHelpers.cs

@@ -0,0 +1,42 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// <auto-generated>
+// This code is auto-generated. Changes to this file will be lost!
+// This T4 file is copied in various projects because inclusion as link or through shared project
+// doesn't allow to generate the C# file locally. If some modification is required, please update
+// all instances.
+// </auto-generated>
+
+#nullable enable
+
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Microsoft.TestPlatform.AdapterUtilities;
+
+internal static class StringUtils
+{
+    /// <inheritdoc cref="string.IsNullOrEmpty(string)"/>
+    [SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+    public static bool IsNullOrEmpty([NotNullWhen(returnValue: false)] this string? value)
+        => string.IsNullOrEmpty(value);
+
+    /// <inheritdoc cref="string.IsNullOrWhiteSpace(string)"/>
+    [SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+    public static bool IsNullOrWhiteSpace([NotNullWhen(returnValue: false)] this string? value)
+        => string.IsNullOrWhiteSpace(value);
+}
+
+[SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+internal static class TPDebug
+{
+    /// <inheritdoc cref="Debug.Assert(bool)"/>
+    [Conditional("DEBUG")]
+    public static void Assert([DoesNotReturnIf(false)] bool b)
+        => Debug.Assert(b);
+
+    /// <inheritdoc cref="Debug.Assert(bool, string)"/>
+    [Conditional("DEBUG")]
+    public static void Assert([DoesNotReturnIf(false)] bool b, string message)
+        => Debug.Assert(b, message);
+}

src/Microsoft.TestPlatform.AdapterUtilities/NullableHelpers.tt

@@ -0,0 +1,45 @@
+<#@ template debug="true" hostspecific="true" language="C#" #>
+<#@ output extension=".cs" #>
+<#@ assembly name="System.Core" #>
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+// <auto-generated>
+// This code is auto-generated. Changes to this file will be lost!
+// This T4 file is copied in various projects because inclusion as link or through shared project
+// doesn't allow to generate the C# file locally. If some modification is required, please update
+// all instances.
+// </auto-generated>
+
+#nullable enable
+
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+
+namespace <#= System.Runtime.Remoting.Messaging.CallContext.LogicalGetData("NamespaceHint") #>;
+
+internal static class StringUtils
+{
+    /// <inheritdoc cref="string.IsNullOrEmpty(string)"/>
+    [SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+    public static bool IsNullOrEmpty([NotNullWhen(returnValue: false)] this string? value)
+        => string.IsNullOrEmpty(value);
+
+    /// <inheritdoc cref="string.IsNullOrWhiteSpace(string)"/>
+    [SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+    public static bool IsNullOrWhiteSpace([NotNullWhen(returnValue: false)] this string? value)
+        => string.IsNullOrWhiteSpace(value);
+}
+
+[SuppressMessage("ApiDesign", "RS0030:Do not used banned APIs", Justification = "Replacement API to allow nullable hints for compiler")]
+internal static class TPDebug
+{
+    /// <inheritdoc cref="Debug.Assert(bool)"/>
+    [Conditional("DEBUG")]
+    public static void Assert([DoesNotReturnIf(false)] bool b)
+        => Debug.Assert(b);
+
+    /// <inheritdoc cref="Debug.Assert(bool, string)"/>
+    [Conditional("DEBUG")]
+    public static void Assert([DoesNotReturnIf(false)] bool b, string message)
+        => Debug.Assert(b, message);
+}

src/Microsoft.TestPlatform.Build/BannedSymbols.txt

@@ -1,4 +1,4 @@
-M:System.Diagnostics.Debug.Assert(System.Boolean); Use 'TPDebug.Assert' instead
-M:System.Diagnostics.Debug.Assert(System.Boolean,System.String); Use 'TPDebug.Assert' instead
+M:System.Diagnostics.TPDebug.Assert(System.Boolean); Use 'TPDebug.Assert' instead
+M:System.Diagnostics.TPDebug.Assert(System.Boolean,System.String); Use 'TPDebug.Assert' instead
 M:System.String.IsNullOrEmpty(System.String); Use 'StringUtils.IsNullOrEmpty' instead
 M:System.String.IsNullOrWhiteSpace(System.String); Use 'StringUtils.IsNullOrWhiteSpace' instead

src/Microsoft.TestPlatform.Client/AttachmentsProcessing/TestRunAttachmentsProcessingEventsHandler.cs

@@ -29,7 +29,7 @@ public TestRunAttachmentsProcessingEventsHandler(ICommunicationManager communica
     }
 
     /// <inheritdoc/>
-    public void HandleTestRunAttachmentsProcessingComplete(TestRunAttachmentsProcessingCompleteEventArgs attachmentsProcessingCompleteEventArgs, IEnumerable<AttachmentSet> lastChunk)
+    public void HandleTestRunAttachmentsProcessingComplete(TestRunAttachmentsProcessingCompleteEventArgs attachmentsProcessingCompleteEventArgs, IEnumerable<AttachmentSet>? lastChunk)
     {
         EqtTrace.Info("Test run attachments processing completed.");
 
@@ -60,7 +60,7 @@ public void HandleProcessedAttachmentsChunk(IEnumerable<AttachmentSet> attachmen
     }
 
     /// <inheritdoc/>
-    public void HandleLogMessage(TestMessageLevel level, string message)
+    public void HandleLogMessage(TestMessageLevel level, string? message)
     {
         var testMessagePayload = new TestMessagePayload { MessageLevel = level, Message = message };
         _communicationManager.SendMessage(MessageType.TestMessage, testMessagePayload);