Migrate to MTP (#37651)

Duplicating https://github.com/microsoft/PowerToys/pull/37001, but
opening from upstream instead of fork as CI doesn't play nicely with PRs
from forks (https://github.com/microsoft/PowerToys/pull/37617 is
improving that)

---------

Co-authored-by: Clint Rutkas <clint@rutkas.com>
Co-authored-by: vanzue <vanzue@outlook.com>

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

@@ -108,9 +108,6 @@ jobs:
       sdk: true
       version: '9.0'
 
-  - task: VisualStudioTestPlatformInstaller@1
-    displayName: Ensure VSTest Platform
-
   - pwsh: |-
       & '$(build.sourcesdirectory)\.pipelines\InstallWinAppDriver.ps1'
     displayName: Download and install WinAppDriver
@@ -152,46 +149,7 @@ jobs:
       inputs:
         displaySettings: 'optimal'
 
-  - ${{ if eq(length(parameters.uiTestModules), 0) }}:
-    - task: VSTest@3
-      displayName: Run UI Tests
-      inputs:
-        platform: '$(BuildPlatform)'
-        configuration: '$(BuildConfiguration)'
-        testSelector: 'testAssemblies'
-        searchFolder: '$(Pipeline.Workspace)\$(TestArtifactsName)'
-        vsTestVersion: 'toolsInstaller'
-        uiTests: true
-        rerunFailedTests: true
-        testRunTitle: 'UITests_${{ parameters.platform }}_${{ parameters.installMode }}'
-        # Since UITests-FancyZonesEditor.dll is generated in both UITests-FancyZonesEditor and UITests-FancyZones, removed one to avoid duplicate test runs
-        testAssemblyVer2: |
-          **\*UITest*.dll
-          !**\obj\**
-          !**\ref\**
-          !**\UITests-FancyZones\**\UITests-FancyZonesEditor.dll
-      env:
-        platform: '$(TestPlatform)'
-        useInstallerForTest: ${{ ne(parameters.buildSource, 'buildNow') }}
-
-  - ${{ if ne(length(parameters.uiTestModules), 0) }}:
-    - ${{ each module in parameters.uiTestModules }}:
-      - task: VSTest@3
-        displayName: Run UI Test - ${{ module }}
-        inputs:
-          platform: '$(BuildPlatform)'
-          configuration: '$(BuildConfiguration)'
-          testSelector: 'testAssemblies'
-          searchFolder: '$(Pipeline.Workspace)\$(TestArtifactsName)'
-          vsTestVersion: 'toolsInstaller'
-          uiTests: true
-          rerunFailedTests: true
-          testRunTitle: 'UITests_${{ parameters.platform }}_${{ parameters.installMode }}'
-          testAssemblyVer2: |
-            **\*${{ module }}*.dll
-            !**\obj\**
-            !**\ref\**
-            !**\UITests-FancyZones\**\UITests-FancyZonesEditor.dll
-        env:
-          platform: '$(TestPlatform)'
-          useInstallerForTest: ${{ ne(parameters.buildSource, 'buildNow') }}
+  - script: |
+      dotnet test $(Build.SourcesDirectory)\src\modules\fancyzones\FancyZones.UITests\FancyZones.UITests.csproj --no-build -c $(BuildConfiguration) -p:Platform=$(BuildPlatform)
+      dotnet test $(Build.SourcesDirectory)\src\modules\fancyzones\FancyZonesEditor.UITests\FancyZonesEditor.UITests.csproj --no-build -c $(BuildConfiguration) -p:Platform=$(BuildPlatform)
+    displayName: "Run UI Tests"