language: node_js
node_js:
  - "6.2"
  - "6.1"
  - "6"
os:
  - linux
  - macosx
dist: trusty
before_install:
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start
cache:
  directories:
    - node_modules
notifications:
  webhooks:
    urls:
      - $GITTER_IM_URL
    on_success: change  # options: [always|never|change] default: always
    on_failure: always  # options: [always|never|change] default: always
    on_start: never     # options: [always|never|change] default: always