language: node_js
node_js:
  - "4"
  - "6"
  - "node"
after_success:
  - "nyc report --reporter=text-lcov | coveralls"

language: node_js
cache:
  yarn: true
  directories:
    - node_modules
node_js:
  - "4"
  - "6"
  - "node"
after_success:
  - "nyc report --reporter=text-lcov | coveralls"

Enable caching for yarn and node_modules in Travis CI config
Enable caching for yarn and node_modules in Travis CI config
