language: node_js
node_js:
  - "6"
  - "7"
  - "8"

install:
  - npm install

after_success: npm run coverage

language: node_js
node_js:
  - "6"
  - "7"
  - "8"
  - "9"

install:
  - npm install

after_success: npm run coverage

Add node 9.x to test environments
Add node 9.x to test environments
