'Prepare resources.
Set up trunk_dict representing incoming data from Neutron-server when
fetching for trunk details. Another resource trunk_br represents the
trunk bridge which its creation is simulated when creating a port in l2
agent framework.'

def setUp(self):

    super(OVSDBHandlerTestCase, self).setUp()
    trunk_id = uuidutils.generate_uuid()
    self.trunk_dict = {'id': trunk_id, 'mac_address': net.get_random_mac('fa:16:3e:00:00:00'.split(':')), 'sub_ports': []}
    self.trunk_port_name = generate_tap_device_name()
    self.trunk_br = trunk_manager.TrunkBridge(trunk_id)
    self.ovsdb_handler = self._prepare_mocked_ovsdb_handler()
