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# Copyright 2012 OpenStack LLC.
# 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 pkg_resources
import unittest
from openstack.common import cfg
from openstack.common import notifier
from openstack.common.notifier import api as notifier_api
from openstack.common.notifier import no_op_notifier
from openstack.common.plugin import plugin
from openstack.common.plugin import pluginmanager
from tests import utils as test_utils
class SimpleNotifier(object):
def __init__(self):
self.message_list = []
def notify(self, context, message):
self.context = context
self.message_list.append(message)
class SimplerNotifier(object):
def notify(self, context, message):
global simpler_notify_called
simpler_notify_called = True
class ManagerTestCase(test_utils.BaseTestCase):
def tearDown(self):
super(ManagerTestCase, self).tearDown()
def test_constructs(self):
manager1 = pluginmanager.PluginManager("testproject", "testservice")
self.assertNotEqual(manager1, False)
class NotifyTestCase(test_utils.BaseTestCase):
"""Test case for the plugin notification interface"""
def setUp(self):
super(NotifyTestCase, self).setUp()
# Set up a 'normal' notifier to make sure the plugin logic
# doesn't mess anything up.
self.stubs.Set(cfg.CONF, 'notification_driver',
SimplerNotifier())
global simpler_notify_called
simpler_notify_called = False
def tearDown(self):
super(NotifyTestCase, self).tearDown()
def test_add_notifier(self):
notifier1 = SimpleNotifier()
notifier2 = SimpleNotifier()
notifier3 = SimpleNotifier()
testplugin = plugin.Plugin('service')
testplugin._add_notifier(notifier1)
testplugin._add_notifier(notifier2)
self.assertEqual(len(testplugin.notifiers), 2)
testplugin._add_notifier(notifier3)
self.assertEqual(len(testplugin.notifiers), 3)
def test_notifier_action(self):
def mock_iter_entry_points(_t):
return [MockEntrypoint("fake", "fake", ["fake"])]
self.stubs.Set(pkg_resources, 'iter_entry_points',
mock_iter_entry_points)
plugmgr = pluginmanager.PluginManager("testproject", "testservice")
plugmgr.load_plugins()
self.assertEqual(len(plugmgr.plugins), 1)
self.assertEqual(len(plugmgr.plugins[0].notifiers), 1)
notifier = plugmgr.plugins[0].notifiers[0]
notifier_api.notify('contextarg', 'publisher_id', 'event_type',
notifier_api.WARN, dict(a=3))
self.assertEqual(len(notifier.message_list), 1)
# Verify that the original baseline notifier is still
# installed and working.
global simpler_notify_called
self.assertTrue(simpler_notify_called)
class StubControllerExtension(object):
name = 'stubextension'
alias = 'stubby'
class TestPluginClass(plugin.Plugin):
def __init__(self, service_name):
super(TestPluginClass, self).__init__(service_name)
self._add_api_extension_descriptor(StubControllerExtension)
notifier1 = SimpleNotifier()
self._add_notifier(notifier1)
class MockEntrypoint(pkg_resources.EntryPoint):
def load(self):
return TestPluginClass
class MockExtManager():
def __init__(self):
self.descriptors = []
def load_extension(self, descriptor):
self.descriptors.append(descriptor)
class APITestCase(test_utils.BaseTestCase):
"""Test case for the plugin api extension interface"""
def tearDown(self):
super(APITestCase, self).tearDown()
def test_add_extension(self):
def mock_load(_s):
return TestPluginClass()
def mock_iter_entry_points(_t):
return [MockEntrypoint("fake", "fake", ["fake"])]
self.stubs.Set(pkg_resources, 'iter_entry_points',
mock_iter_entry_points)
stubLoaded = False
mgr = MockExtManager()
plugmgr = pluginmanager.PluginManager("testproject", "testservice")
plugmgr.load_plugins()
plugmgr.plugin_extension_factory(mgr)
self.assertTrue(StubControllerExtension in mgr.descriptors)
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