Cake\Controller\Controller::startupProcess PHP Method

    public function startupProcess()
    {
        $event = $this->dispatchEvent('Controller.initialize');
        if ($event->result instanceof Response) {
            return $event->result;
        }
        $event = $this->dispatchEvent('Controller.startup');
        if ($event->result instanceof Response) {
            return $event->result;
        }
    }

 /**
  * @return void
  */
 public function setUp()
 {
     parent::setUp();
     Configure::write('App.namespace', 'TestApp');
     $this->Controller = new CacheComponentTestController();
     $this->Controller->startupProcess();
     $this->Controller->request->session()->delete('CacheMessage');
     $this->Controller->Cache->config('debug', true);
 }