language: node_js
node_js:
  - "node"
  - "lts/*"
script: |
  npm install mocha@$MOCHA
  npm run ci
env:
  - MOCHA=5
  - MOCHA=6

language: node_js
node_js:
  - 'node'
  - 'lts/*'
script: |
  npm install mocha@$MOCHA
  npm run ci
env:
  - MOCHA=2
  - MOCHA=3
  - MOCHA=4
  - MOCHA=5
  - MOCHA=6

Add tests for mocha v2, v3, and v4
Add tests for mocha v2, v3, and v4
