@engine.configure(name="Empty", namespace="rally")
class EmptyEngine(engine.Engine):
    """A fake deployment that do nothing"""

    CONFIG_SCHEMA = {}

    def deploy(self):
        # we need no store fake data to cheat while engine processing.
        return {"rally": [{"admin": {"auth_url": "https://example.com",
                                     "username": "root",
                                     "password": "toor"},
                           "users": [{}]}]}

    def cleanup(self):
        pass


@context.configure("users", namespace="rally", order=1)
class UserEmptyContext(context.Context):
    def setup(self):
        super(UserEmptyContext, self).setup()
        self.context["users"] = []

    def cleanup(self):
        pass