Move unit test runs to hosted pools (#671)

We can now run our unit tests in the Hosted VS2019 pool since bugs have been fixed in the version of Visual Studio deployed on those agents.

build/pipelines/azure-pipelines.ci.yaml

@@ -41,15 +41,9 @@ jobs:
 - template: ./templates/run-unit-tests.yaml
   parameters:
     platform: x64
-    reimageServiceConnection: essential-experiences-interactive-reimage
-    reimageSubscriptionId: a8f5eb47-e59c-44b4-8e42-e70811a047b5
-    reimageResourceGroup: EETestPublic
 
 - template: ./templates/run-unit-tests.yaml
   parameters:
     platform: x86
-    reimageServiceConnection: essential-experiences-interactive-reimage
-    reimageSubscriptionId: a8f5eb47-e59c-44b4-8e42-e70811a047b5
-    reimageResourceGroup: EETestPublic
 
 - template: ./templates/package-appxbundle.yaml

build/pipelines/azure-pipelines.release.yaml

@@ -48,16 +48,10 @@ jobs:
 - template: ./templates/run-unit-tests.yaml
   parameters:
     platform: x64
-    reimageServiceConnection: macool-sandbox-interactiveDesktopRS5
-    reimageSubscriptionId: 012a8008-c00f-45b3-9828-41ebba30141d
-    reimageResourceGroup: interactiveDesktopRS5
 
 - template: ./templates/run-unit-tests.yaml
   parameters:
     platform: x86
-    reimageServiceConnection: macool-sandbox-interactiveDesktopRS5
-    reimageSubscriptionId: 012a8008-c00f-45b3-9828-41ebba30141d
-    reimageResourceGroup: interactiveDesktopRS5
 
 - template: ./templates/package-appxbundle.yaml
 

build/pipelines/templates/run-unit-tests.yaml

@@ -1,29 +1,20 @@
-# This template contains jobs to run unit tests on the interactive test agents.
+# This template contains jobs to run unit tests.
 
 parameters:
   platform: ''
-  reimageServiceConnection: ''
-  reimageSubscriptionId: ''
-  reimageResourceGroup: ''
+  runsettingsFileName: ''
 
 jobs:
 - job: UnitTests${{ parameters.platform }}
   displayName: UnitTests ${{ parameters.platform }}
   dependsOn: Build${{ parameters.platform }}
+  condition: succeeded()
   pool:
-    name: Essential Experiences Interactive
-  workspace:
-    clean: outputs
+    vmImage: windows-2019
   variables:
     skipComponentGovernanceDetection: true
   steps:
   - checkout: none
-
-  - powershell: Write-Host "##vso[task.setvariable variable=agentInstanceId;isOutput=true]$($env:AgentName -replace '\D+' -as [int])"
-    name: LogAgentStep
-    displayName: Log this agent's instance for later cleanup
-    env:
-      AgentName: $(Agent.Name)
   
   - task: DownloadBuildArtifacts@0
     displayName: Download CalculatorUnitTests
@@ -41,19 +32,4 @@ jobs:
     displayName: Run CalculatorUnitTests
     inputs:
       testAssemblyVer2: $(Build.ArtifactStagingDirectory)\drop\Release\${{ parameters.platform }}\CalculatorUnitTests\AppPackages\CalculatorUnitTests_Test\CalculatorUnitTests.appx
-      otherConsoleOptions: /Platform:${{ parameters.platform }}
-
-- job: CleanUpUnitTests${{ parameters.platform }}
-  dependsOn: UnitTests${{ parameters.platform }}
-  condition: and(always(), ne(dependencies.UnitTests${{ parameters.platform }}.Outputs['LogAgentStep.agentInstanceId'], ''))
-  pool: server
-  variables:
-    agentInstanceId: $[ dependencies.UnitTests${{ parameters.platform }}.outputs['LogAgentStep.agentInstanceId'] ]
-  steps:
-  - task: InvokeRESTAPI@1
-    displayName: Reimage test machine
-    inputs:
-      connectionType: connectedServiceNameARM
-      azureServiceConnection: ${{ parameters.reimageServiceConnection }}
-      urlSuffix: subscriptions/${{ parameters.reimageSubscriptionId }}/resourceGroups/${{ parameters.reimageResourceGroup }}/providers/Microsoft.Compute/virtualMachineScaleSets/essential/reimage?api-version=2018-10-01
-      body: '{ "instanceIds": ["$(agentInstanceId)"] }'
+      otherConsoleOptions: /Platform:${{ parameters.platform }}