language: node_js
node_js:
  - "7.2"
  - "6.9"
  - "5.12"
  - "4.7"
before_install:
  - if [[ `npm -v` != 3* ]]; then npm i -g npm@3; fi
install:
  - npm install
  - npm run build
script:
  - npm test
after_success:
  - npm run coverage