Working implementation of an azure pipeline that runs acceptance tests in sauce labs

azurePipelines.yml

pool:
  name: Hosted VS2017
  demands:
  - msbuild
  - visualstudio
  - vstest

steps:
- script: set
  displayName: print all variables
- task: NuGetToolInstaller@0
  displayName: 'Use NuGet 4.4.1'
  inputs:
    versionSpec: 4.4.1

- task: NuGetCommand@2
  displayName: 'NuGet restore'
  inputs:
    restoreSolution: '**\*.sln'

- task: VSBuild@1
  displayName: 'Build solution'
  inputs:
    solution: '**\*.sln'
    msbuildArgs: '/p:DeployOnBuild=true /p:WebPublishMethod=Package /p:PackageAsSingleFile=true /p:SkipInvalidConfigurations=true /p:DesktopBuildPackageLocation="$(build.artifactstagingdirectory)\WebApp.zip" /p:DeployIisAppPath="Default Web Site"'
    logProjectEvents: true

- task: PowerShell@2
  displayName: 'Set Sauce Environment Variables'
  inputs:
    targetType: filePath
    filePath: ./setEnvironmentVariables.ps1
    arguments: '$env:SAUCE_USER $env:SAUCE_KEY'

# Using powershell ##vso command to set an environment variable in the system
- powershell: |
   Write-Host "Sauce Username stored in ADO variables is=>$($env:SAUCE_USER)";
   Write-Host "Sauce Access Key stored in ADO variables is=>$($env:SAUCE_KEY)";
   Write-Host "Sauce Username stored in Env variables is=>$($env:SAUCE_USERNAME)";
   Write-Host "Sauce Access Key stored in Env variables is=>$($env:SAUCE_ACCESS_KEY)";
   Write-Host "Sauce Build Repository URI stored in Env variables is=>$($env:BUILD_REPOSITORY_URI)";

#checking to make sure that env variables were set between yml tasks
- powershell: |
   Write-Host "Sauce Username stored in Env Variables variables is=>$($env:SAUCE_USERNAME)";
   Write-Host "Sauce Access Key stored in ADO variables is=>$($env:SAUCE_ACCESS_KEY)";
  displayName: display env variables bw posh tasks

- task: VSTest@2
  displayName: 'Run Best Practices Framework'
  inputs:
    searchFolder: '$(System.DefaultWorkingDirectory)'
    testSelector: 'testAssemblies'
    testAssemblyVer2: |
     **\*Selenium*.dll
     !**\SauceExamples\packages\*.dll
     !**\packages\*.dll
    testFiltercriteria: 'TestCategory=BestPractices'
    runInParallel: true
    codeCoverageEnabled: true
    testRunTitle: 'NUnit Automation Framework'
    rerunFailedTests: true
    rerunFailedThreshold: 10
    rerunMaxAttempts: 2
    failOnMinTestsNotRun: true