Update azure-pipelines.yml for Azure Pipelines

Author: licanhua

azure-pipelines.yml

@@ -76,12 +76,25 @@ steps:
       $file = ( Get-ChildItem -Path TestApp\Calculator_$(PackageManifest)_Test\Calculator_$(PackageManifest)_x64.cer )
       $file | Import-Certificate -CertStoreLocation cert:\LocalMachine\Root
 
+
 - task: PowerShell@1
   displayName: 'Install Calculator Packages'
   inputs:
     scriptName: 'TestApp\Calculator_$(PackageManifest)_Test\Add-AppDevPackage.ps1'
     arguments: '-NonInteractive -Force:$true  -Verb RunAs'
+
+- task: Windows Application Driver@0
+  inputs:
+    OperationType: 'Start'
+    WADArguments: 127.0.0.1 4723/wd/hub
+    AgentResolution: 1080p
+    
 - task: CmdLine@2
   inputs:
     script: 'yarn run jest'
-    workingDirectory: 'example'
+    workingDirectory: 'example'
+
+- task: Windows Application Driver@0
+  inputs:
+    OperationType: 'Stop'
+  condition: succeededOrFailed()