# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2012 Isaku Yamahata <yamahata at private email ne jp>
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import mock


def patch_fake_ryu_client():
    ryu_mod = mock.Mock()
    ryu_app_mod = ryu_mod.app
    ryu_app_client = ryu_app_mod.client
    rest_nw_id = ryu_app_mod.rest_nw_id
    rest_nw_id.NW_ID_EXTERNAL = '__NW_ID_EXTERNAL__'
    rest_nw_id.NW_ID_UNKNOWN = '__NW_ID_UNKNOWN__'
    return mock.patch.dict('sys.modules',
                           {'ryu': ryu_mod,
                            'ryu.app': ryu_app_mod,
                            'ryu.app.client': ryu_app_client,
                            'ryu.app.rest_nw_id': rest_nw_id})