Adding Process Query Flag For UWP .NET 9 Support

azure-pipelines-official.yml

@@ -200,7 +200,7 @@ extends:
               inputs:
                 PathtoPublish: '$(Build.SourcesDirectory)/artifacts/VSSetup/Release'
                 ArtifactName: VSSetupArtifacts
-          
+
           - ${{ each pool in parameters.otherOsPools }}:
             - job: ${{ pool.os }}
               dependsOn: Windows
@@ -250,7 +250,7 @@ extends:
                   condition: failed()
 
           - job: Publish
-            dependsOn: 
+            dependsOn:
               - ${{ each pool in parameters.otherOsPools }}:
                 - ${{ pool.os }}
             pool:

eng/verify-nupkgs.ps1

@@ -26,7 +26,7 @@ function Verify-Nuget-Packages {
         "Microsoft.TestPlatform.ObjectModel"          = 92;
         "Microsoft.TestPlatform.AdapterUtilities"     = 61;
         "Microsoft.TestPlatform.Portable"             = 608;
-        "Microsoft.TestPlatform.TestHost"             = 62;
+        "Microsoft.TestPlatform.TestHost"             = 63;
         "Microsoft.TestPlatform.TranslationLayer"     = 122;
         "Microsoft.TestPlatform.Internal.Uwp"         = 38;
     }
@@ -189,8 +189,8 @@ function Verify-NugetPackageExe {
     }
 
     $errs = @()
-    $exes = $UnzipNugetPackages | Get-ChildItem -Filter *.exe -Recurse -Force 
-    if (0 -eq @($exes).Length) { 
+    $exes = $UnzipNugetPackages | Get-ChildItem -Filter *.exe -Recurse -Force
+    if (0 -eq @($exes).Length) {
         throw "No exe files were found."
     }
 
@@ -215,7 +215,7 @@ function Verify-NugetPackageExe {
         $fullName = $_.FullName
         $name = $_.Name
 
-        if ("x86" -eq $platform) { 
+        if ("x86" -eq $platform) {
             $corFlagsOutput = & $corFlags $fullName
             # this is an native x86 exe or a .net x86 that requires of prefers 32bit
             $platform = if ($corFlagsOutput -like "*does not have a valid managed header*" -or $corFlagsOutput -like "*32BITREQ  : 1*" -or $corFlagsOutput -like "*32BITPREF : 1*") {
@@ -268,7 +268,7 @@ function Verify-NugetPackageExe {
         "Success: $name is $platform - $fullName"
     }
 
-    if ($errs) { 
+    if ($errs) {
         throw "Fail!:`n$($errs -join "`n")"
     }
 }
@@ -282,7 +282,7 @@ function Verify-NugetPackageVersion {
     )
 
     # look for vstest.console.dll because unified build for .NET does not produce vstest.console.exe
-    $exes = $UnzipNugetPackages | Get-ChildItem -Filter vstest.console.dll -Recurse -Force 
+    $exes = $UnzipNugetPackages | Get-ChildItem -Filter vstest.console.dll -Recurse -Force
     if (0 -eq @($exes).Length) {
         throw "No vstest.console.dll files were found."
     }
@@ -294,7 +294,7 @@ function Verify-NugetPackageVersion {
         else {
             "$_ version $($_.VersionInfo.ProductVersion) is ok."
         }
-    } 
+    }
 
 }
 

src/package/Microsoft.TestPlatform.TestHost/Microsoft.TestPlatform.TestHost.csproj

@@ -51,5 +51,8 @@
     <None Update="Microsoft.TestPlatform.TestHost.props" Condition=" $([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', '$(NetCoreAppMinimum)')) ">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Update="Microsoft.TestPlatform.TestHost.targets" Condition=" $([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', '$(NetCoreAppMinimum)')) ">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 </Project>

src/package/Microsoft.TestPlatform.TestHost/Microsoft.TestPlatform.TestHost.nuspec

@@ -50,6 +50,7 @@
     <file src="net8.0\testhost.x86.exe" target="build\net8.0\x86\" />
 
     <file src="net8.0\Microsoft.TestPlatform.TestHost.props" target="build\net8.0\" />
+    <file src="net8.0\Microsoft.TestPlatform.TestHost.targets" target="build\net8.0\" />
 
 
     <!-- Add localized resources net8.0 -->

src/package/Microsoft.TestPlatform.TestHost/Microsoft.TestPlatform.TestHost.targets

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <_MSTestEnableParentProcessQuery Condition="'$(UseUwpTools)'=='true'">false</_MSTestEnableParentProcessQuery>
+    <_MSTestEnableParentProcessQuery Condition="'$(_MSTestEnableParentProcessQuery)'==''">true</_MSTestEnableParentProcessQuery>
+  </PropertyGroup>
+  <ItemGroup>
+    <RuntimeHostConfigurationOption
+      Include="MSTest.EnableParentProcessQuery"
+      Value="$(_MSTestEnableParentProcessQuery)"
+      Trim="true" />
+  </ItemGroup>
+</Project>

src/testhost.x86/DefaultEngineInvoker.cs

@@ -60,6 +60,12 @@ internal class DefaultEngineInvoker :
 
     private const string RemotePath = "--remote-path";
 
+    private static readonly bool EnableParentProcessQuery =
+        AppContext.TryGetSwitch(
+            switchName: "MSTest.EnableParentProcessQuery",
+            isEnabled: out bool value)
+        ? value : true;
+
     private readonly ITestRequestHandler _requestHandler;
 
     private readonly IDataCollectionTestCaseEventSender _dataCollectionTestCaseEventSender;
@@ -213,6 +219,12 @@ private void SetParentProcessExitCallback(IDictionary<string, string?> argsDicti
             throw new ArgumentException($"Argument {ParentProcessIdArgument} was not specified.");
         }
 
+        if (!EnableParentProcessQuery)
+        {
+            EqtTrace.Info("DefaultEngineInvoker.SetParentProcessExitCallback: Skipping querying parent process with id: '{0}'", parentProcessId);
+            return;
+        }
+
         EqtTrace.Info("DefaultEngineInvoker.SetParentProcessExitCallback: Monitoring parent process with id: '{0}'", parentProcessId);
 
         if (parentProcessId == -1)