neutron/neutron/tests/functional/agent/ovsdb/test_impl_idl.py

76 lines
3.0 KiB
Python

# Copyright (c) 2016 Red Hat, Inc.
# 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 mock
from neutron.agent.common import ovs_lib
from neutron.agent.ovsdb import api
from neutron.agent.ovsdb import impl_idl
from neutron.common import utils
from neutron.tests.common import net_helpers
from neutron.tests.functional import base
# NOTE(twilson) functools.partial does not work for this
def trpatch(*args, **kwargs):
def wrapped(fn):
return mock.patch.object(impl_idl.NeutronOVSDBTransaction,
*args, **kwargs)(fn)
return wrapped
class ImplIdlTestCase(base.BaseSudoTestCase):
def setUp(self):
super(ImplIdlTestCase, self).setUp()
self.config(group='OVS', ovsdb_interface='native')
self.ovs = ovs_lib.BaseOVS()
self.brname = utils.get_rand_device_name(net_helpers.BR_PREFIX)
# Make sure exceptions pass through by calling do_post_commit directly
mock.patch.object(
impl_idl.NeutronOVSDBTransaction, "post_commit",
side_effect=impl_idl.NeutronOVSDBTransaction.do_post_commit,
autospec=True).start()
def _add_br(self):
# NOTE(twilson) we will be raising exceptions with add_br, so schedule
# cleanup before that.
self.addCleanup(self.ovs.delete_bridge, self.brname)
ovsdb = self.ovs.ovsdb
with ovsdb.transaction(check_error=True) as tr:
tr.add(ovsdb.add_br(self.brname))
return tr
def _add_br_and_test(self):
self._add_br()
ofport = self.ovs.db_get_val("Interface", self.brname, "ofport")
self.assertTrue(int(ofport))
self.assertTrue(ofport > -1)
def test_post_commit_vswitchd_completed_no_failures(self):
self._add_br_and_test()
@trpatch("vswitchd_has_completed", return_value=True)
@trpatch("post_commit_failed_interfaces", return_value=["failed_if1"])
@trpatch("timeout_exceeded", return_value=False)
def test_post_commit_vswitchd_completed_failures(self, *args):
self.assertRaises(impl_idl.VswitchdInterfaceAddException, self._add_br)
@trpatch("vswitchd_has_completed", return_value=False)
def test_post_commit_vswitchd_incomplete_timeout(self, *args):
# Due to timing issues we may rarely hit the global timeout, which
# raises RuntimeError to match the vsctl implementation
self.ovs.vsctl_timeout = 3
self.assertRaises((api.TimeoutException, RuntimeError), self._add_br)