def test_necessario(self):
        self.assertTrue(self.seg_p)

        seg_p2 = itau.registros.SegmentoP()
        self.assertFalse(seg_p2.necessario())

        seg_p2.controle_banco = 33
        self.assertFalse(seg_p2.necessario())

        seg_p2.vencimento_titulo = 10102012
        self.assertTrue(seg_p2.necessario())
def activate(self):
        """
        Syntax sugar that helps at django shell with fast tenant changing

        Usage:
            Tenant.objects.get(schema_name='test').activate()
        """
        connection = connections[get_tenant_database_alias()]
        connection.set_tenant(self)