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# Copyright 2011 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
from nova.api.openstack.compute import extensions as computeextensions
from nova.api.openstack import extensions
from nova.openstack.common.plugin import plugin
from nova import test
class StubController(object):
def i_am_the_stub(self):
pass
class StubControllerExtension(extensions.ExtensionDescriptor):
"""This is a docstring. We need it."""
name = 'stubextension'
alias = 'stubby'
def get_resources(self):
resources = []
res = extensions.ResourceExtension('testme',
StubController())
resources.append(res)
return resources
service_list = []
class TestPluginClass(plugin.Plugin):
def __init__(self, service_name):
super(TestPluginClass, self).__init__(service_name)
self._add_api_extension_descriptor(StubControllerExtension)
service_list.append(service_name)
class MockEntrypoint(pkg_resources.EntryPoint):
def load(self):
return TestPluginClass
class APITestCase(test.TestCase):
"""Test case for the plugin api extension interface."""
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)
global service_list
service_list = []
# Marking out the default extension paths makes this test MUCH faster.
self.flags(osapi_compute_extension=[])
found = False
mgr = computeextensions.ExtensionManager()
for res in mgr.get_resources():
# We have to use this weird 'dir' check because
# the plugin framework muddies up the classname
# such that 'isinstance' doesn't work right.
if 'i_am_the_stub' in dir(res.controller):
found = True
self.assertTrue(found)
self.assertEqual(len(service_list), 1)
self.assertEqual(service_list[0], 'compute-extensions')
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