Single dependency to add tests to a ButterProvider

to use simply:

$ npm i butter-test-provider

or if you're from the new kids:

$ yarn add butter-test-provider

this should modify your package.json file to include:

  "scripts": {
    "test": "mocha ./node_modules/butter-provider/tests/*",
    "lint": "eslint tests/** index.js"
  },