How to test Reflux actions with Jest

Question

I\'m having difficulty testing that Reflux actions are triggering correctly in my application, and in fact they do not seem to be working at all with Jest. I have this examp

Answer 1

I figured it out! I just needed to use Jest's own methods for fast-forwarding any timers. i.e. just add the line

jest.runAllTimers();

So the working version of my first example would be

jest.autoMockOff();

describe('Test', function () {
  it('Tests actions', function () {
    var Reflux = require('../node_modules/reflux/index');

    var action = Reflux.createAction('action');
    var mockFn = jest.genMockFn();

    var store = Reflux.createStore({
      init: function () {
        this.listenTo(action, this.onAction);
      },
      onAction: function () {
        mockFn();
      }
    });

    action('Hello World');

    jest.runAllTimers();

    expect(mockFn).toBeCalled();
  });
});