trigger:
- master

pool:
  vmImage: 'Ubuntu-16.04'
  demands: npm

steps:
- task: Npm@1
  displayName: 'npm install'
  inputs:
    workingDir: Tools/Gulp
    verbose: false

- script: 'gulp typescript-all'
  workingDirectory: Tools/Gulp
  displayName: 'Build'

- script: |
   export DISPLAY=:99
   Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
   sleep 3 # give xvfb some time to start
   gulp tests-validation-virtualscreen
  workingDirectory: Tools/Gulp
  displayName: 'Visual Tests'