public function shouldAppendAction()
{
//given
$controllerGenerator = new ControllerGenerator('users', $this->controllerPath);
$controllerGenerator->saveController();
//when
$appendAction = $controllerGenerator->appendAction(new ActionGenerator('index'));
//then
$this->assertTrue($appendAction);
Assert::thatString($controllerGenerator->getControllerContents())->contains('class UsersController extends Controller')->contains('public function index()');
}