Files
vmware-nsx/neutron/tests/unit/nec/test_ofc_client.py
Akihiro Motoki 5c6808763d Handle racing condition in OFC port deletion
Multiple delete_port operations can run in parallel.
For such case later operation(s) will receive 404 (NotFound)
error from OFC or NotResultFound sqlalchemy exception.
These are valid exceptions and they should be ignored
in delete_port operations.

Closes-Bug: #1281574

OFCConsistencyBroken is renamed to OFCMappingNotFound
because when multiple delete_port operations run in parallel
OFCConsistencyBroken can occur and it is a valid case
so the excepion name looks inappropriate.

Change-Id: I1511d55994c88b8828f0ff62610c18ddc6dfac8f
2014-02-21 08:37:53 +00:00

123 lines
4.7 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2013 NEC Corporation. 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.
#
# @author: Akihiro Motoki
import json
import socket
import mock
from neutron.plugins.nec.common import exceptions as nexc
from neutron.plugins.nec.common import ofc_client
from neutron.tests import base
class OFCClientTest(base.BaseTestCase):
def _test_do_request(self, status, resbody, data, exctype=None,
exc_checks=None):
res = mock.Mock()
res.status = status
res.read.return_value = resbody
conn = mock.Mock()
conn.getresponse.return_value = res
with mock.patch.object(ofc_client.OFCClient, 'get_connection',
return_value=conn):
client = ofc_client.OFCClient()
if exctype:
e = self.assertRaises(exctype, client.do_request,
'GET', '/somewhere', body={})
self.assertEqual(data, str(e))
if exc_checks:
for k, v in exc_checks.items():
self.assertEqual(v, getattr(e, k))
else:
response = client.do_request('GET', '/somewhere', body={})
self.assertEqual(response, data)
headers = {"Content-Type": "application/json"}
expected = [
mock.call.request('GET', '/somewhere', '{}', headers),
mock.call.getresponse(),
]
conn.assert_has_calls(expected)
def test_do_request_200_json_value(self):
self._test_do_request(200, json.dumps([1, 2, 3]), [1, 2, 3])
def test_do_request_200_string(self):
self._test_do_request(200, 'abcdef', 'abcdef')
def test_do_request_200_no_body(self):
self._test_do_request(200, None, None)
def test_do_request_other_success_codes(self):
for status in [201, 202, 204]:
self._test_do_request(status, None, None)
def test_do_request_returns_404(self):
resbody = ''
errmsg = _("The specified OFC resource (/somewhere) is not found.")
self._test_do_request(404, resbody, errmsg, nexc.OFCResourceNotFound)
def test_do_request_error_no_body(self):
errmsg = _("An OFC exception has occurred: Operation on OFC failed")
exc_checks = {'status': 400, 'err_code': None, 'err_msg': None}
self._test_do_request(400, None, errmsg, nexc.OFCException, exc_checks)
def test_do_request_error_string_body(self):
resbody = 'This is an error.'
errmsg = _("An OFC exception has occurred: Operation on OFC failed")
exc_checks = {'status': 400, 'err_code': None,
'err_msg': 'This is an error.'}
self._test_do_request(400, resbody, errmsg, nexc.OFCException,
exc_checks)
def test_do_request_error_json_body(self):
resbody = json.dumps({'err_code': 40022,
'err_msg': 'This is an error.'})
errmsg = _("An OFC exception has occurred: Operation on OFC failed")
exc_checks = {'status': 400, 'err_code': 40022,
'err_msg': 'This is an error.'}
self._test_do_request(400, resbody, errmsg, nexc.OFCException,
exc_checks)
def test_do_request_socket_error(self):
conn = mock.Mock()
conn.request.side_effect = socket.error
data = _("An OFC exception has occurred: Failed to connect OFC : ")
with mock.patch.object(ofc_client.OFCClient, 'get_connection',
return_value=conn):
client = ofc_client.OFCClient()
e = self.assertRaises(nexc.OFCException, client.do_request,
'GET', '/somewhere', body={})
self.assertEqual(data, str(e))
for k in ['status', 'err_code', 'err_msg']:
self.assertIsNone(getattr(e, k))
headers = {"Content-Type": "application/json"}
expected = [
mock.call.request('GET', '/somewhere', '{}', headers),
]
conn.assert_has_calls(expected)