installation script

.pipelines/InstallWinAppDriver.ps1

@@ -0,0 +1,15 @@
+$ProgressPreference = 'SilentlyContinue'
+
+$WinAppDriverDownloadUrl = "https://github.com/microsoft/WinAppDriver/releases/download/v1.2.1/WindowsApplicationDriver_1.2.1.msi"
+
+# Download WiX binaries and verify their hash sums
+Invoke-WebRequest -Uri $WinAppDriverDownloadUrl -OutFile "$($ENV:Temp)\WindowsApplicationDriver_1.2.1.msi"
+$Hash = (Get-FileHash -Algorithm SHA256 "$($ENV:Temp)\WindowsApplicationDriver_1.2.1.msi").Hash
+if ($Hash -ne 'a76a8f4e44b29bad331acf6b6c248fcc65324f502f28826ad2acd5f3c80857fe')
+{
+    Write-Error "$WinAppDriverHash"
+    throw "WindowsApplicationDriver_1.2.1.msi has unexpected SHA256 hash: $Hash"
+}
+
+# Install WinAppDriver
+Start-Process -Wait -FilePath "$($ENV:Temp)\WindowsApplicationDriver_1.2.1.msi" -ArgumentList "/install /quiet"

.pipelines/ci/templates/run-ui-tests-ci.yml

@@ -42,6 +42,12 @@ jobs:
   - task: VisualStudioTestPlatformInstaller@1
     displayName: Ensure VSTest Platform
 
+  - task: PowerShell@2
+    displayName: Download and install WinAppDriver
+    inputs:
+      targetType: filePath
+      filePath: '$(build.sourcesdirectory)\.pipelines\installWinAppDriver.ps1'
+      
   - task: ScreenResolutionUtility@1
     inputs:
       displaySettings: 'optimal'