Enable MTP

.pipelines/v2/templates/job-test-project.yml

@@ -73,9 +73,6 @@ jobs:
       sdk: true
       version: '9.0'
 
-  - task: VisualStudioTestPlatformInstaller@1
-    displayName: Ensure VSTest Platform
-
   - pwsh: |-
       & '$(build.sourcesdirectory)\.pipelines\InstallWinAppDriver.ps1'
     displayName: Download and install WinAppDriver
@@ -85,18 +82,7 @@ jobs:
       inputs:
         displaySettings: 'optimal'
 
-  - task: VSTest@3
-    displayName: Run UI Tests
-    inputs:
-      platform: '$(BuildPlatform)'
-      configuration: '$(BuildConfiguration)'
-      testSelector: 'testAssemblies'
-      searchFolder: '$(Pipeline.Workspace)\build-${{ parameters.platform }}-${{ parameters.configuration }}${{ parameters.inputArtifactStem }}'
-      vsTestVersion: 'toolsInstaller'
-      uiTests: true
-      rerunFailedTests: true
-      testAssemblyVer2: |
-        **\UITests-FancyZones.dll
-        **\UITests-FancyZonesEditor.dll
-        !**\obj\**
-        !**\ref\**
+  - script: 
+      dotnet test $(Build.SourcesDirectory)\src\modules\fancyzones\UITests-FancyZones\UITests-FancyZones.csproj --no-build -c $(BuildConfiguration) -p:Platform=$(BuildPlatform)
+      dotnet test $(Build.SourcesDirectory)\src\modules\fancyzones\UITests-FancyZonesEditor\UITests-FancyZonesEditor.csproj --no-build -c $(BuildConfiguration) -p:Platform=$(BuildPlatform)
+    displayName: "Run UI Tests"

Directory.Build.props

@@ -17,6 +17,14 @@
     <NuGetAuditMode>direct</NuGetAuditMode>
     <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>    <!-- Don't add source revision hash to the product version of binaries. -->
     <PlatformTarget>$(Platform)</PlatformTarget>
+
+    <!-- Enable Microsoft.Testing.Platform -->
+    <EnableMSTestRunner>true</EnableMSTestRunner>
+    <TestingPlatformCaptureOutput>false</TestingPlatformCaptureOutput>
+    <TestingPlatformDotNetTestSupport>true</TestingPlatformDotNetTestSupport>
+
+    <!-- No arm64 agents to run the tests. -->
+    <TestingPlatformDisableCustomTestTarget Condition="'$(Platform)' == 'ARM64'">true</TestingPlatformDisableCustomTestTarget>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(MSBuildProjectExtension)' == '.csproj'">
@@ -45,7 +53,15 @@
     </PackageReference>
   </ItemGroup>
 
-  <!-- Add ability to run tests via "msbuild /t:Test" -->
+  <!-- In CI, we build and test with `/t:Build;Test` -->
+  <!-- So, for non-test projects, we want the target to be there and it's basically doing nothing -->
+  <!-- For C# test projects, Microsoft.Testing.Platform should inject Test target here: -->
+  <!-- https://github.com/microsoft/testfx/blob/5ad21909704db501f58f27d4a7ec241edd761af5/src/Platform/Microsoft.Testing.Platform.MSBuild/buildMultiTargeting/Microsoft.Testing.Platform.MSBuild.targets#L270-L273 -->
+  <!-- For C++ test projects, the RunVSTest SDK will do its job -->
+  <Target Name="Test" />
+
+  <!-- Add ability to run tests via "msbuild /t:Test" using the RunVSTest SDK -->
+  <!-- This is only needed for C++, as we use Microsoft.Testing.Platform for C# -->
   <!--
     Workaround an MSBuild bug where Microsoft.Common.Test.targets is missing from the Arm64 installation.
     See: https://github.com/dotnet/msbuild/pull/9984
@@ -55,11 +71,11 @@
           Once the change referenced above is fixed, the ImportGroup below can be replaced with:
             <Sdk Name="Microsoft.Build.RunVSTest" Version="1.0.319" />
   -->
-  <ImportGroup Condition="'$(PROCESSOR_ARCHITECTURE)' != 'ARM64'">
+  <ImportGroup Condition="'$(PROCESSOR_ARCHITECTURE)' != 'ARM64' AND ('$(Language)' == 'C++' OR '$(MSBuildProjectExtension)' == '.vcxproj')">
     <Import Project="Sdk.props" Sdk="Microsoft.Build.RunVSTest" Version="1.0.319" />
     <Import Project="Sdk.targets" Sdk="Microsoft.Build.RunVSTest" Version="1.0.319" />
   </ImportGroup>
-  <PropertyGroup>
+  <PropertyGroup Condition="'$(Language)' == 'C++' OR '$(MSBuildProjectExtension)' == '.vcxproj'">
     <VSTestLogger>trx</VSTestLogger>
     <!--
       RunVSTest by default uses %VSINSTALLDIR%\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.console.exe,

Directory.Packages.props

@@ -56,7 +56,7 @@
     <PackageVersion Include="ModernWpfUI" Version="0.9.4" />
     <!-- Moq to stay below v4.20 due to behavior change. need to be sure fixed -->
     <PackageVersion Include="Moq" Version="4.18.4" />
-    <PackageVersion Include="MSTest" Version="3.6.3" />
+    <PackageVersion Include="MSTest" Version="3.7.3" />
     <PackageVersion Include="NLog" Version="5.0.4" />
     <PackageVersion Include="NLog.Extensions.Logging" Version="5.3.8" />
     <PackageVersion Include="NLog.Schema" Version="5.2.8" />

src/modules/fancyzones/UITests-FancyZones/UITests-FancyZones.csproj

@@ -7,10 +7,10 @@
     <RootNamespace>Microsoft.FancyZones.UITests</RootNamespace>
     <IsPackable>false</IsPackable>
     <Nullable>enable</Nullable>
-    <OutputType>Library</OutputType>
-    
-    <!-- This is a UI test, so don't run as part of MSBuild -->
-    <RunVSTest>false</RunVSTest>
+    <OutputType>Exe</OutputType>
+
+    <!-- This is a UI test, so don't run as part of the Test target -->
+    <TestingPlatformDisableCustomTestTarget>true</TestingPlatformDisableCustomTestTarget>
   </PropertyGroup>
 
   <PropertyGroup>

src/modules/fancyzones/UITests-FancyZonesEditor/RunFancyZonesEditorTest.cs

@@ -15,13 +15,14 @@ namespace UITests_FancyZonesEditor
     public class RunFancyZonesEditorTest
     {
         private static FancyZonesEditorSession? _session;
-        private static TestContext? _context;
+        private readonly TestContext _context;
+
+        public RunFancyZonesEditorTest(TestContext context)
+            => _context = context;
 
         [ClassInitialize]
         public static void ClassInitialize(TestContext testContext)
         {
-            _context = testContext;
-
             // prepare files to launch Editor without errors
             EditorParameters editorParameters = new EditorParameters();
             EditorParameters.ParamsWrapper parameters = new EditorParameters.ParamsWrapper
@@ -133,19 +134,18 @@ public static void ClassInitialize(TestContext testContext)
         public static void ClassCleanup()
         {
             FancyZonesEditorSession.Files.Restore();
-            _context = null;
         }
 
         [TestInitialize]
         public void TestInitialize()
         {
-            _session = new FancyZonesEditorSession(_context!);
+            _session = new FancyZonesEditorSession(_context);
         }
 
         [TestCleanup]
         public void TestCleanup()
         {
-            _session?.Close(_context!);
+            _session?.Close(_context);
         }
 
         [TestMethod]

src/modules/fancyzones/UITests-FancyZonesEditor/UITests-FancyZonesEditor.csproj

@@ -7,10 +7,10 @@
     <RootNamespace>Microsoft.FancyZonesEditor.UITests</RootNamespace>
     <IsPackable>false</IsPackable>
     <Nullable>enable</Nullable>
-    <OutputType>Library</OutputType>
+    <OutputType>Exe</OutputType>
 
-    <!-- This is a UI test, so don't run as part of MSBuild -->
-    <RunVSTest>false</RunVSTest>
+    <!-- This is a UI test, so don't run as part of the Test target -->
+    <TestingPlatformDisableCustomTestTarget>true</TestingPlatformDisableCustomTestTarget>
   </PropertyGroup>
 
   <PropertyGroup>