mocha-aura timeouts

timersTest.js

let clock;

before(function() {
  clock = sinon.useFakeTimers();
});
 
describe('Create Component', function() {
  it('should create component after timeout of 500 ms', function() {

    // Make helper call which uses setTimeout(..., 500) to call GlobalHelper.showLoadedData()
    helper.createComponent();
    
    // Check that showLoadedData not called yet
    expect(global.GlobalHelper.showLoadedData).not.to.have.been.called;

    // Emulate 501ms has been elapsed and showLoadedData have been called in synchronous manner
    clock.tick(501);
    expect(global.GlobalHelper.showLoadedData).to.have.been.calledWith(component);
  });
});