LoginListener.php snippet - the method to be tested

LoginListener.php

    public function onSecurityInteractiveLogin(InteractiveLoginEvent $event)
    {
        $session = $event->getRequest()->getSession();
        $username = $event->getAuthenticationToken()->getUser()->getUsername();
        $session->setFlash('notice', "Welcome {$username}, you have successfully logged in.");
    }

LoginListenerTest.php

    public function testOnSecurityInteractiveLogin()
    {
        $loginEvent = new LoginListener();
        
        // Get a mock $event of type InteractiveLoginEvent
        
        $loginEvent->onSecurityInteractiveLogin($event);
    }