oslo.limit/oslo_limit/fixture.py

76 lines
3.1 KiB
Python

# Copyright 2021 Red Hat, Inc
# 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.
from unittest import mock
import fixtures as fixtures
from openstack.identity.v3 import endpoint
from openstack.identity.v3 import limit as keystone_limit
class LimitFixture(fixtures.Fixture):
def __init__(self, reglimits, projlimits):
"""A fixture for testing code that relies on Keystone Unified Limits.
:param reglimits: A dictionary of {resource_name: limit} values to
simulate registered limits in keystone.
:type reglimits: dict
:param projlimits: A dictionary of dictionaries defining per-project
limits like {project_id: {resource_name: limit}}.
As in reality, only per-project overrides need be
provided here; any unmentioned projects or
resources will take the registered limit defaults.
:type projlimits: dict
"""
self.reglimits = reglimits
self.projlimits = projlimits
def setUp(self):
super(LimitFixture, self).setUp()
# We mock our own cached connection to Keystone
self.mock_conn = mock.MagicMock()
self.useFixture(fixtures.MockPatch('oslo_limit.limit._SDK_CONNECTION',
new=self.mock_conn))
# Use a flat enforcement model
mock_gem = self.useFixture(
fixtures.MockPatch('oslo_limit.limit.Enforcer.'
'_get_enforcement_model')).mock
mock_gem.return_value = 'flat'
# Fake keystone endpoint; no per-service limit distinction
fake_endpoint = endpoint.Endpoint()
fake_endpoint.service_id = "service_id"
fake_endpoint.region_id = "region_id"
self.mock_conn.get_endpoint.return_value = fake_endpoint
def fake_limits(service_id, region_id, resource_name, project_id=None):
this_limit = keystone_limit.Limit()
this_limit.resource_name = resource_name
if project_id is None:
this_limit.default_limit = self.reglimits.get(resource_name)
if this_limit.default_limit is None:
return iter([None])
else:
this_limit.resource_limit = \
self.projlimits.get(project_id, {}).get(resource_name)
if this_limit.resource_limit is None:
return iter([None])
return iter([this_limit])
self.mock_conn.limits.side_effect = fake_limits
self.mock_conn.registered_limits.side_effect = fake_limits