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# 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
from oslo_utils import uuidutils
from neutron_lib import constants
from neutron_lib.db import model_query
from neutron_lib import fixture
from neutron_lib.tests import _base
from neutron_lib.utils import helpers
# TODO(boden): find a way to test other model_query functions
class TestHooks(_base.BaseTestCase):
def setUp(self):
super().setUp()
self.useFixture(fixture.DBQueryHooksFixture())
def _mock_hook(self, x):
return x
def check_registered_hooks(self, registered_hooks, expected=None):
expected = expected if expected else {}
for d in registered_hooks:
for k in d.keys():
self.assertEqual(expected[k], d.get(k))
def test_register_hook(self):
mock_model = mock.Mock()
model_query.register_hook(
mock_model, 'hook1', self._mock_hook,
self._mock_hook, result_filters=self._mock_hook)
self.assertEqual(1, len(model_query._model_query_hooks.keys()))
hook_ref = helpers.make_weak_ref(self._mock_hook)
registered_hooks = model_query.get_hooks(mock_model)
self.assertEqual(1, len(registered_hooks))
expected_hooks = {'query': hook_ref,
'filter': hook_ref,
'result_filters': hook_ref,
'rbac_actions': None}
self.check_registered_hooks(registered_hooks, expected_hooks)
def test_register_hook_non_callables(self):
mock_model = mock.Mock()
model_query.register_hook(
mock_model, 'hook1', self._mock_hook, {}, result_filters={})
self.assertEqual(1, len(model_query._model_query_hooks.keys()))
hook_ref = helpers.make_weak_ref(self._mock_hook)
registered_hooks = model_query.get_hooks(mock_model)
self.assertEqual(1, len(registered_hooks))
expected_hooks = {'query': hook_ref,
'filter': {},
'result_filters': {},
'rbac_actions': None}
self.check_registered_hooks(registered_hooks, expected_hooks)
def test_register_hook_with_mutiple_rbacs(self):
mock_model = mock.Mock()
model_query.register_hook(
mock_model, 'hook1', self._mock_hook,
self._mock_hook, result_filters=self._mock_hook,
rbac_actions=[constants.ACCESS_SHARED, constants.ACCESS_EXTERNAL])
self.assertEqual(1, len(model_query._model_query_hooks.keys()))
hook_ref = helpers.make_weak_ref(self._mock_hook)
registered_hooks = model_query.get_hooks(mock_model)
self.assertEqual(1, len(registered_hooks))
expected_hooks = {'query': hook_ref,
'filter': hook_ref,
'result_filters': hook_ref,
'rbac_actions': {constants.ACCESS_SHARED,
constants.ACCESS_EXTERNAL}}
self.check_registered_hooks(registered_hooks, expected_hooks)
def test_register_hook_with_one_rbac(self):
mock_model = mock.Mock()
model_query.register_hook(
mock_model, 'hook1', self._mock_hook,
self._mock_hook, result_filters=self._mock_hook,
rbac_actions=constants.ACCESS_READONLY)
self.assertEqual(1, len(model_query._model_query_hooks.keys()))
hook_ref = helpers.make_weak_ref(self._mock_hook)
registered_hooks = model_query.get_hooks(mock_model)
self.assertEqual(1, len(registered_hooks))
expected_hooks = {'query': hook_ref,
'filter': hook_ref,
'result_filters': hook_ref,
'rbac_actions': {constants.ACCESS_READONLY}}
self.check_registered_hooks(registered_hooks, expected_hooks)
def test_get_values(self):
mock_model = mock.Mock()
mock_context = mock.Mock()
with mock.patch.object(
model_query, 'query_with_hooks') as query_with_hooks:
query_with_hooks.return_value = [['value1'], ['value2']]
values = model_query.get_values(mock_context, mock_model,
'fake_field')
self.assertEqual(['value1', 'value2'], values)
query_with_hooks.assert_called_with(
mock_context, mock_model, field='fake_field')
def test_get_rbac_actions_no_rbacs(self):
model = uuidutils.generate_uuid()
model_query.register_hook(model, 'hook1', mock.ANY, mock.ANY)
rbacs = model_query.get_rbac_actions(model)
self.assertEqual(model_query.DEFAULT_RBAC_ACTIONS, rbacs)
def test_get_rbac_actions_one_rbac(self):
model = uuidutils.generate_uuid()
model_query.register_hook(model, 'hook1', mock.ANY, mock.ANY,
rbac_actions=constants.ACCESS_READONLY)
rbacs = model_query.get_rbac_actions(model)
self.assertEqual({constants.ACCESS_READONLY}, rbacs)
def test_get_rbac_actions_multiple_rbac(self):
model = uuidutils.generate_uuid()
model_query.register_hook(model, 'hook1', mock.ANY, mock.ANY,
rbac_actions=constants.ACCESS_READONLY)
model_query.register_hook(model, 'hook2', mock.ANY, mock.ANY,
rbac_actions=constants.ACCESS_READONLY)
model_query.register_hook(model, 'hook3', mock.ANY, mock.ANY,
rbac_actions=constants.ACCESS_SHARED)
rbacs = model_query.get_rbac_actions(model)
self.assertEqual({constants.ACCESS_READONLY, constants.ACCESS_SHARED},
rbacs)
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