language: node_js
dist: xenial
cache: false
node_js:
  - "9.3"
  - "10"
  - "11"
addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test
    packages:
      - xvfb
      - qtbase5-dev
      - build-essential
      - qt5-default
      - g++-6
      - x11-apps
      - imagemagick
before_install:
  - export CXX="g++-6"
install:
  - npm install