redux-state-sync/__mocks__/envMock.js

A middleware for redux to sync state in different tabs

/* global window Event*/
let store = {};
const localStorageMock = {
  getItem(key) {
    return store[key];
  },
  setItem(key, value) {
    store[key] = value.toString();
    Event.prototype.newValue = value;
    window.dispatchEvent(new Event('storage'));
  },
  clear() {
    store = {};
  },
};

global.localStorage = localStorageMock;