def METHOD_NAME(self):
    """The picking is confirm and the shipping is recorded to CTT Express"""
    self.picking.button_validate()
    self.assertTrue(self.picking.carrier_tracking_ref)
    self.picking.tracking_state_update()
    self.assertTrue(self.picking.tracking_state)
    self.picking.cancel_shipment()
    self.assertFalse(self.picking.carrier_tracking_ref)