'Call ``GET & HEAD /roles/{role_id}``.'

def test_get_head_role(self):

    resource_url = ('/roles/%(role_id)s' % {'role_id': self.role_id})
    r = self.get(resource_url)
    self.assertValidRoleResponse(r, self.role)
    self.head(resource_url, expected_status=http_client.OK)
