def METHOD_NAME(self):
    group_name = data_setup.unique_name(u'group%s')
    display_name = u'My Group'
    out = run_client(['bkr', 'group-create',
                      '--display-name', display_name,
                      group_name])
    self.assert_('Group created' in out, out)
    try:
        _ = run_client(['bkr', 'group-create', group_name])
        self.fail('Must fail or die')
    except ClientError as e:
        self.assert_('Group already exists' in e.stderr_output,
                     e.stderr_output)