Aura Events

In this example mocha-aura provides simple factory for events. Then actual controller code has been called against mock event instance. For this particular example calculateWaitlistCount helper method was mocked by sinon.stub(helper, 'calculateWaitlistCount');

Specs code

it('should call helper calculateWaitlistCount for numberOfGuests', function() {
  const value = 'test value';
  const event = eventFactory({fieldId : 'numberOfGuests', value});
  ctl.handleFieldUpdateEvent(component, event, helper);
  expect(helper.calculateWaitlistCount).to.have.been.called;
});

Tested code

handleFieldUpdateEvent: function(component, event, helper) {
  var params = event.getParams();
  if (params.fieldId === 'rsvpStatus') {
    helper.updateRSVPPane(component, params.value);
    helper.checkSelection(component);
  }
  if (params.fieldId === 'numberOfGuests') {
    helper.calculateWaitlistCount(component);
  }
},