* A test form used for the prepareCallback() tests.
*/
class PrepareCallbackTestForm implements FormInterface {
+
public function getFormId() {
return 'test_form';
}
public function buildForm(array $form, FormStateInterface $form_state) {}
+
public function validateForm(array &$form, FormStateInterface $form_state) {}
+
public function submitForm(array &$form, FormStateInterface $form_state) {}
}