JavaScript Standard Style does not recognize jest

I was able to find a solution.

In package.json

"standard": {
  "env": [ "jest" ]
}

Or in the test case:

/* eslint-env mocha */

In your .eslintrc.js file, include the following setting and you'll be good to go.

"env": {
  "node": true,
  "jest": true
}

If you are using a .eslintrc or a .eslintrc.json file, please use appropriate syntax.