language: node_js
sudo: false
os:
  - linux
node_js:
  - 12
  - 11
  - 10
before_install: dpkg --compare-versions `npm -v` ge 5.8 || npm i -g npm@^5.8
install:
  - npm ci
script:
  - npx nyc --reporter=lcov npm test && npx codecov