'Error case: Compute target port does not exist(MSGID0650-E).'

@mock.patch.object(vsp_utils, 'execute', side_effect=_execute)
def test_do_setup_compute_target_ports_not_found(self, execute):

    drv = vsp_iscsi.VSPISCSIDriver(configuration=self.configuration, db=db)
    self._setup_config()
    self.configuration.vsp_target_ports = None
    self.configuration.vsp_compute_target_ports = ['CL4-A']
    self.assertRaises(exception.VSPError, drv.do_setup, None)
