$ npm install library-coverage --global

$ library-coverage --help
  Usage
    $ library-coverage <input>
    
  Options
    --library, -l  Library to evaluate
    --parser, -p  Parser to use (babel|babylon|flow) default: babel
    
  Examples
    $ library-coverage src/**/*.js -l ramda -p flow
    $ library-coverage src/**/*.spec.js -l redux-sagas