'Call ``PATCH /groups/{group_id}``.'

def test_update_group(self):

    group = unit.new_group_ref(domain_id=self.domain_id)
    del group['id']
    r = self.patch(('/groups/%(group_id)s' % {'group_id': self.group_id}), body={'group': group})
    self.assertValidGroupResponse(r, group)
