public function testMandatory2()
{
$db = new Persistence_SQL($this->db->connection);
$a = ['user' => [1 => ['id' => 1, 'name' => 'John', 'surname' => 'Smith']]];
$this->setDB($a);
$m = new Model($db, 'user');
$m->addField('name', ['mandatory' => true]);
$m->addField('surname');
$m->insert(['surname' => 'qq']);
}