Awesome

<div align="center"> <a href="https://facebook.github.io/jest/"> <img width="150" height="150" vspace="" hspace="25" src="http://dp.hanlon.io/16694b99c896/jest.png"> </a> <h1>jest-watch-master</h1> <p>Jest watch plugin for checking changes since master</p> <p><strong>Requires Jest >= 23.6.0</strong></p> <img src="http://dp.hanlon.io/fadbfc9115f0/Image%2525202018-09-10%252520at%25252011.06.40%252520AM.png"> </div>

Install

Install jest and jest-watch-master

yarn add --dev jest jest-watch-master

# or with NPM

npm install --save-dev jest jest-watch-master

Add it to your Jest config

In your package.json:

{
  "jest": {
    "watchPlugins": ["jest-watch-master"]
  }
}

Or in jest.config.js

module.exports = {
  // ...
  watchPlugins: ['jest-watch-master'],
};

Options

`branch: string`

To specify a branch other than master, use the branch setting:

{
  "jest": {
    "watchPlugins": [["jest-watch-master", { "branch": "feature" }]]
  }
}