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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_config import cfg
from stevedore import extension
import os_vif
from os_vif import exception
from os_vif import objects
from os_vif import opts
from os_vif import plugin
from os_vif.tests.unit import base
class DemoPlugin(plugin.PluginBase):
CONFIG_OPTS = (
cfg.BoolOpt("make_it_work",
default=False,
help="Make everything work correctly by setting this"),
cfg.IntOpt("sleep_time",
default=0,
help="How long to artifically sleep")
)
def describe(self):
pass
def plug(self, vif, instance_info, config):
pass
def unplug(self, vif, instance_info, config):
pass
class DemoPluginNoConfig(plugin.PluginBase):
def describe(self):
pass
def plug(self, vif, instance_info, config):
pass
def unplug(self, vif, instance_info, config):
pass
class TestOSVIF(base.TestCase):
def setUp(self):
super(TestOSVIF, self).setUp()
os_vif._EXT_MANAGER = None
@mock.patch('stevedore.extension.ExtensionManager')
def test_initialize(self, mock_EM):
self.assertIsNone(os_vif._EXT_MANAGER)
# Note: the duplicate call for initialize is to validate
# that the extension manager is only initialized once
os_vif.initialize()
os_vif.initialize()
mock_EM.assert_called_once_with(
invoke_on_load=False, namespace='os_vif')
self.assertIsNotNone(os_vif._EXT_MANAGER)
def test_load_plugin(self):
obj = DemoPlugin.load("demo")
self.assertTrue(hasattr(cfg.CONF, "os_vif_demo"))
self.assertTrue(hasattr(cfg.CONF.os_vif_demo, "make_it_work"))
self.assertTrue(hasattr(cfg.CONF.os_vif_demo, "sleep_time"))
self.assertEqual(cfg.CONF.os_vif_demo.make_it_work, False)
self.assertEqual(cfg.CONF.os_vif_demo.sleep_time, 0)
self.assertEqual(obj.config, cfg.CONF.os_vif_demo)
def test_load_plugin_no_config(self):
obj = DemoPluginNoConfig.load("demonocfg")
self.assertFalse(hasattr(cfg.CONF, "os_vif_demonocfg"))
self.assertIsNone(obj.config)
def test_plug_not_initialized(self):
self.assertRaises(
exception.LibraryNotInitialized,
os_vif.plug, None, None)
def test_unplug_not_initialized(self):
self.assertRaises(
exception.LibraryNotInitialized,
os_vif.plug, None, None)
@mock.patch.object(DemoPlugin, "plug")
def test_plug(self, mock_plug):
plg = extension.Extension(name="demo",
entry_point="os-vif",
plugin=DemoPlugin,
obj=None)
with mock.patch(
'stevedore.extension.ExtensionManager.names',
return_value=['foobar'],
), mock.patch(
'stevedore.extension.ExtensionManager.__getitem__',
return_value=plg,
):
os_vif.initialize()
info = objects.instance_info.InstanceInfo()
vif = objects.vif.VIFBridge(
id='9a12694f-f95e-49fa-9edb-70239aee5a2c',
plugin='foobar')
os_vif.plug(vif, info)
mock_plug.assert_called_once_with(vif, info)
@mock.patch.object(DemoPlugin, "unplug")
def test_unplug(self, mock_unplug):
plg = extension.Extension(name="demo",
entry_point="os-vif",
plugin=DemoPlugin,
obj=None)
with mock.patch(
'stevedore.extension.ExtensionManager.names',
return_value=['foobar']
), mock.patch(
'stevedore.extension.ExtensionManager.__getitem__',
return_value=plg,
):
os_vif.initialize()
info = objects.instance_info.InstanceInfo()
vif = objects.vif.VIFBridge(
id='9a12694f-f95e-49fa-9edb-70239aee5a2c',
plugin='foobar')
os_vif.unplug(vif, info)
mock_unplug.assert_called_once_with(vif, info)
def test_host_info_all(self):
os_vif.initialize()
info = os_vif.host_info()
# NOTE(sean-k-mooney): as out of tree plugins could be
# visable in path assert only at at least all the in
# intree plugins are loaded instead of an exact match.
self.assertTrue(len(info.plugin_info) >= 3)
plugins = {p.plugin_name: p for p in info.plugin_info}
in_tree_plugin_names = ("linux_bridge", "ovs", "noop")
self.assertTrue(all(name in plugins for name in in_tree_plugin_names))
lb = plugins["linux_bridge"]
self.assertTrue(any("VIFBridge" == vif.vif_object_name
for vif in lb.vif_info))
ovs = plugins["ovs"]
self.assertTrue(len(ovs.vif_info) >= 4)
vif_names = (vif.vif_object_name for vif in ovs.vif_info)
ovs_vifs = ("VIFBridge", "VIFOpenVSwitch",
"VIFVHostUser", "VIFHostDevice")
self.assertTrue(all(name in ovs_vifs for name in vif_names))
noop = plugins["noop"]
self.assertTrue(any("VIFVHostUser" == vif.vif_object_name
for vif in noop.vif_info))
def test_host_info_filtered(self):
os_vif.initialize()
info = os_vif.host_info(permitted_vif_type_names=["VIFOpenVSwitch"])
self.assertEqual(len(info.plugin_info), 1)
self.assertEqual(info.plugin_info[0].plugin_name, "ovs")
vif_info = info.plugin_info[0].vif_info
self.assertEqual(len(vif_info), 1)
self.assertEqual(vif_info[0].vif_object_name, "VIFOpenVSwitch")
def test_list_opts_entrypoints(self):
list_opts = opts.list_plugins_opts()
for group in list_opts:
for opt in group[1]:
self.assertTrue("oslo_config.cfg" == opt.__module__)
self.assertGreaterEqual(len(list_opts), 3)
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