language: 
  node_js
node_js:
    - "node"
services:
  - mongodb
cache:
  directories:
    - "node_modules"
install:
  - npm ci
  - npm install -g npx
script:
  - npx gulp
  - npx istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec
  - npx codecov