def METHOD_NAME(
        self,
        context,
        mock_iscsilib_ensure_daemon_running_ok):
    context.setup_error_codes()
    mock_iscsilib_ensure_daemon_running_ok.side_effect = RandomError(
        'Raise RandomError'
    )
    with self.assertRaises(SR.SROSError) as cm:
        self.lvhd_o_iscsi_sr.load(self.fake_uuid)
    self.assertEqual(cm.exception.errno, 202)
    self.assertEqual(
        str(cm.exception),
        'General backend error [opterr=Raise RandomError]'
    )