public function setUp()
{
$addressFieldSet = new FieldSet('address');
$address = $addressFieldSet->setEntity('Address');
$addressFieldSet->add((new Element\Text('street'))->setLabel('Street')->setAttribute('placeholder', 'Enter street')->setFilters('required|trim'));
$addressFieldSet->add((new Element\Text('city'))->setLabel('City')->setAttribute('placeholder', 'Enter city')->setFilters('required|trim'));
$userFieldSet = new FieldSet('user');
$user = $userFieldSet->setEntity('User');
$user->setAddress($address);
$userFieldSet->add((new Element\Text('firstName'))->setLabel('First name')->setAttribute('placeholder', 'Enter first name')->setFilters('required|trim'));
$userFieldSet->add((new Element\Text('lastName'))->setLabel('Last name')->setAttribute('placeholder', 'Enter last name')->setFilters('required|trim'));
$userFieldSet->add($addressFieldSet);
$form = new Form();
$form->add($userFieldSet);
$this->form = $form;
}
