@airbnb/config-jest/serializers/mockData.js

Reusable Jest config.

/* eslint-disable no-prototype-builtins, no-underscore-dangle */

exports.test = function test(value) {
  return value && value.hasOwnProperty('__jest_mock_label__');
};

exports.print = function print(value) {
  return `${value.__jest_mock_label__} Mock`;
};