Enable nullable on missed files

src/Microsoft.TestPlatform.Client/Execution/TestRunRequest.cs

@@ -425,14 +425,11 @@ public void HandleTestRunComplete(TestRunCompleteEventArgs runCompleteArgs, Test
             }
             finally
             {
-                if (isCanceled)
-                {
-                    State = TestRunState.Canceled;
-                }
-                else
-                {
-                    State = isAborted ? TestRunState.Aborted : TestRunState.Completed;
-                }
+                State = isCanceled
+                    ? TestRunState.Canceled
+                    : isAborted
+                        ? TestRunState.Aborted
+                        : TestRunState.Completed;
 
                 // Notify the waiting handle that run is complete
                 _runCompletionEvent.Set();
@@ -655,6 +652,7 @@ public int LaunchProcessWithDebuggerAttached(TestProcessStartInfo testProcessSta
     {
         int processId = -1;
 
+        TPDebug.Assert(TestRunCriteria.TestHostLauncher is not null, "TestRunCriteria.TestHostLauncher is null");
         // Only launch while the test run is in progress and the launcher is a debug one
         if (State == TestRunState.InProgress && TestRunCriteria.TestHostLauncher.IsDebug)
         {

src/Microsoft.TestPlatform.Client/TestPlatform.cs

@@ -386,9 +386,15 @@ private static IEnumerable<string> ExpandAdaptersWithDefaultStrategy(string path
                 TestPlatformConstants.RunTimeEndsWithPattern);
     }
 
-    private static IEnumerable<string> GetSources(TestRunCriteria testRunCriteria) =>
-        testRunCriteria.HasSpecificTests
+    private static IEnumerable<string> GetSources(TestRunCriteria testRunCriteria)
+    {
+        if (testRunCriteria.HasSpecificTests)
+        {
             // If the test execution is with a test filter, filter sources too.
-            ? testRunCriteria.Tests.Select(tc => tc.Source).Distinct()
-            : testRunCriteria.Sources;
+            return testRunCriteria.Tests.Select(tc => tc.Source).Distinct();
+        }
+
+        TPDebug.Assert(testRunCriteria.Sources is not null, "testRunCriteria.Sources is null");
+        return testRunCriteria.Sources;
+    }
 }

src/Microsoft.TestPlatform.CrossPlatEngine/Client/InProcessProxyexecutionManager.cs

@@ -59,7 +59,7 @@ public int StartTestRun(TestRunCriteria testRunCriteria, IInternalTestRunEventsH
             var runConfiguration = XmlRunSettingsUtilities.GetRunConfigurationNode(testRunCriteria.TestRunSettings);
             var testPackages = new List<string>(testRunCriteria.HasSpecificSources ? testRunCriteria.Sources :
                 // If the test execution is with a test filter, group them by sources
-                testRunCriteria.Tests.GroupBy(tc => tc.Source).Select(g => g.Key));
+                testRunCriteria.Tests!.GroupBy(tc => tc.Source).Select(g => g.Key));
 
             // This code should be in sync with ProxyExecutionManager.StartTestRun executionContext
             var executionContext = new TestExecutionContext(

src/Microsoft.TestPlatform.CrossPlatEngine/Client/Parallel/ParallelProxyExecutionManager.cs

@@ -103,6 +103,7 @@ public int StartTestRun(TestRunCriteria testRunCriteria, IInternalTestRunEventsH
         _runCompletedClients = 0;
 
         // One data aggregator per parallel run
+        TPDebug.Assert(testRunCriteria.TestRunSettings is not null, "testRunCriteria.TestRunSettings is null");
         _currentRunDataAggregator = new ParallelRunDataAggregator(testRunCriteria.TestRunSettings);
         if (nonRunnableWorkloads.Count > 0)
         {
@@ -267,9 +268,9 @@ private List<ProviderSpecificWorkload<TestRunCriteria>> SplitToWorkloads(TestRun
         }
         else
         {
-            var sources = testRunCriteria.Sources;
+            TPDebug.Assert(testRunCriteria.Sources is not null, "testRunCriteria.Sources is null");
             // Each source is grouped with its respective provider.
-            var providerGroups = sources
+            var providerGroups = testRunCriteria.Sources
                 .Select(source => new ProviderSpecificWorkload<string>(source, sourceToTestHostProviderMap[source]))
                 .GroupBy(psw => psw.Provider);
 

src/Microsoft.TestPlatform.CrossPlatEngine/Client/ProxyOperationManager.cs

@@ -382,7 +382,7 @@ public virtual TestProcessStartInfo UpdateTestProcessStartInfo(TestProcessStartI
     /// <param name="runsettingsXml">Run settings string.</param>
     ///
     /// <returns>The run settings after removing non-required nodes.</returns>
-    public string? RemoveNodesFromRunsettingsIfRequired(string runsettingsXml, Action<TestMessageLevel, string> logMessage)
+    public string? RemoveNodesFromRunsettingsIfRequired(string? runsettingsXml, Action<TestMessageLevel, string> logMessage)
     {
         var updatedRunSettingsXml = runsettingsXml;
         if (!_makeRunsettingsCompatibleSet)

src/Microsoft.TestPlatform.CrossPlatEngine/Client/TestRunCriteriaExtensions.cs

@@ -16,6 +16,7 @@ internal static class TestRunCriteriaExtensions
 {
     public static TestRunCriteriaWithSources CreateTestRunCriteriaForSources(this TestRunCriteria testRunCriteria, ITestRuntimeProvider? testRuntimeProvider, string? runSettings, TestExecutionContext executionContext, IEnumerable<string>? inputPackages)
     {
+        TPDebug.Assert(testRunCriteria.AdapterSourceMap is not null, "testRunCriteria.AdapterSourceMap is null");
         if (TryCheckTestSourceDifferFromPackage(testRuntimeProvider, inputPackages, out IEnumerable<string>? actualTestSources))
         {
             UpdateTestSources(actualTestSources, testRunCriteria.AdapterSourceMap);
@@ -31,6 +32,7 @@ public static TestRunCriteriaWithSources CreateTestRunCriteriaForSources(this Te
     public static TestRunCriteriaWithTests CreateTestRunCriteriaForTests(this TestRunCriteria testRunCriteria, ITestRuntimeProvider? testRuntimeProvider,
         string? runSettings, TestExecutionContext executionContext, IEnumerable<string>? inputPackages)
     {
+        TPDebug.Assert(testRunCriteria.Tests is not null, "testRunCriteria.Tests is null");
         if (TryCheckTestSourceDifferFromPackage(testRuntimeProvider, inputPackages, out IEnumerable<string>? actualTestSources))
         {
             // In UWP scenario TestCase object contains the package as source, which is not actual test source for adapters,

src/Microsoft.TestPlatform.CrossPlatEngine/TestEngine.cs

@@ -192,6 +192,8 @@ public IProxyExecutionManager GetExecutionManager(
         IDictionary<string, SourceDetail> sourceToSourceDetailMap,
         IWarningLogger warningLogger)
     {
+        TPDebug.Assert(testRunCriteria.TestRunSettings is not null, "testRunCriteria.TestRunSettings is null");
+
         // We use mulitple "different" runsettings here. We have runsettings that come with the testRunCriteria,
         // and we use that to figure out the common stuff before we try to setup the run. Later we patch the settings
         // from the additional details that were passed. Those should not affect the common properties that are used for setup.
@@ -492,11 +494,11 @@ private static int GetDistinctNumberOfSources(TestRunCriteria testRunCriteria)
     {
         // No point in creating more processes if number of sources is less than what the user
         // configured for.
-        int numSources = testRunCriteria.HasSpecificTests
+        int numberOfSources = testRunCriteria.HasSpecificTests
             ? new HashSet<string>(
                 testRunCriteria.Tests.Select(testCase => testCase.Source)).Count
             : testRunCriteria.Sources.Count();
-        return numSources;
+        return numberOfSources;
     }
 
     /// <summary>
@@ -509,7 +511,7 @@ private static int GetDistinctNumberOfSources(TestRunCriteria testRunCriteria)
     /// <returns>The parallel level to use.</returns>
     private int VerifyParallelSettingAndCalculateParallelLevel(
         int sourceCount,
-        string runSettings)
+        string? runSettings)
     {
         // Default is 1.
         int parallelLevelToUse;

src/Microsoft.TestPlatform.Extensions.TrxLogger/Utility/Converter.cs

@@ -471,6 +471,7 @@ private CollectorDataEntry ToCollectorEntry(AttachmentSet attachmentSet, Guid te
                 // (Trx viewer automatically adds In\ to the collected file.
                 string fileName = Path.Combine(Environment.MachineName, Path.GetFileName(targetFileName));
                 Uri sourceFileUri = new(fileName, UriKind.Relative);
+                TPDebug.Assert(uriDataAttachment.Description is not null, "uriDataAttachment.Description is null");
                 TrxObjectModel.UriDataAttachment dataAttachment = new(uriDataAttachment.Description, sourceFileUri, _trxFileHelper);
 
                 uriDataAttachments.Add(dataAttachment);

src/Microsoft.TestPlatform.ObjectModel/AttachmentSet.cs

@@ -57,15 +57,15 @@ public class UriDataAttachment
     /// Description of the attachment.
     /// </summary>
     [DataMember]
-    public string Description { get; }
+    public string? Description { get; }
 
     /// <summary>
     /// Uri of the attachment.
     /// </summary>
     [DataMember]
     public Uri Uri { get; }
 
-    public UriDataAttachment(Uri uri, string description)
+    public UriDataAttachment(Uri uri, string? description)
     {
         Uri = uri;
         Description = description;
@@ -76,7 +76,7 @@ public override string ToString()
         return $"{nameof(Uri)}: {Uri.AbsoluteUri}, {nameof(Description)}: {Description}";
     }
 
-    public static UriDataAttachment CreateFrom(string localFilePath, string description)
+    public static UriDataAttachment CreateFrom(string localFilePath, string? description)
     {
         var uri = new UriBuilder() { Scheme = "file", Host = "", Path = localFilePath }.Uri;
         return new UriDataAttachment(uri, description);

src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/ITestRunConfiguration.cs

@@ -35,5 +35,5 @@ public interface ITestRunConfiguration
     /// <summary>
     /// The specific tests for this test run if any.
     /// </summary>
-    IEnumerable<TestCase> Tests { get; }
+    IEnumerable<TestCase>? Tests { get; }
 }