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# Copyright 2015 IBM Corp.
# 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 uuid
import mock
from oslo_config import cfg
from oslo_config import fixture as config_fixture
from oslo_utils import importutils
from oslotest import mockpatch
import stevedore
from stevedore import extension
from keystone.auth import controllers
from keystone.tests import unit
class TestLoadAuthMethod(unit.BaseTestCase):
def test_entrypoint_works(self):
method = uuid.uuid4().hex
plugin_name = self.getUniqueString()
# Register the method using the given plugin
cf = self.useFixture(config_fixture.Config())
cf.register_opt(cfg.StrOpt(method), group='auth')
cf.config(group='auth', **{method: plugin_name})
# Setup stevedore.DriverManager to return a driver for the plugin
extension_ = extension.Extension(
plugin_name, entry_point=mock.sentinel.entry_point,
plugin=mock.sentinel.plugin,
obj=mock.sentinel.driver)
auth_plugin_namespace = 'keystone.auth.%s' % method
fake_driver_manager = stevedore.DriverManager.make_test_instance(
extension_, namespace=auth_plugin_namespace)
driver_manager_mock = self.useFixture(mockpatch.PatchObject(
stevedore, 'DriverManager', return_value=fake_driver_manager)).mock
driver = controllers.load_auth_method(method)
self.assertEqual(auth_plugin_namespace, fake_driver_manager.namespace)
driver_manager_mock.assert_called_once_with(
auth_plugin_namespace, plugin_name, invoke_on_load=True)
self.assertIs(driver, mock.sentinel.driver)
def test_entrypoint_fails_import_works(self):
method = uuid.uuid4().hex
plugin_name = self.getUniqueString()
# Register the method using the given plugin
cf = self.useFixture(config_fixture.Config())
cf.register_opt(cfg.StrOpt(method), group='auth')
cf.config(group='auth', **{method: plugin_name})
# stevedore.DriverManager raises RuntimeError if it can't load the
# driver.
self.useFixture(mockpatch.PatchObject(
stevedore, 'DriverManager', side_effect=RuntimeError))
self.useFixture(mockpatch.PatchObject(
importutils, 'import_object', return_value=mock.sentinel.driver))
driver = controllers.load_auth_method(method)
self.assertIs(driver, mock.sentinel.driver)
def test_entrypoint_fails_import_fails(self):
method = uuid.uuid4().hex
plugin_name = self.getUniqueString()
# Register the method using the given plugin
cf = self.useFixture(config_fixture.Config())
cf.register_opt(cfg.StrOpt(method), group='auth')
cf.config(group='auth', **{method: plugin_name})
# stevedore.DriverManager raises RuntimeError if it can't load the
# driver.
self.useFixture(mockpatch.PatchObject(
stevedore, 'DriverManager', side_effect=RuntimeError))
class TestException(Exception):
pass
self.useFixture(mockpatch.PatchObject(
importutils, 'import_object', side_effect=TestException))
self.assertRaises(TestException, controllers.load_auth_method, method)
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