language: node_js
node_js:
  - 6
  - 7
  - 8
  - 9
cache:
  directories:
    - node_modules
before_install: npm install --global npm
after_install: npm link
after_success: npm run upload-coverage

language: node_js
node_js:
  - 6
  - 7
  - 8
  - 9
cache:
  directories:
    - node_modules
before_install: npm install --global npm
before_script: npm link
after_success: npm run upload-coverage

Fix npm link script for Travis
Fix npm link script for Travis