language: node_js
sudo: false
cache:
  yarn: true
node_js:
  - node
  - 8
  - 6
before_install:
  - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.13.0
  - export PATH="$HOME/.yarn/bin:$PATH"
install:
  - yarn install
script:
  - yarn lint
  - yarn test
  - yarn build
env:
  - NODE_ENV=TEST