vmware-nsx/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
Kevin Benton d72f6a0611 Add option to ignore backend HTTP error in BigSwitch plugin
This patch fixes the way the BigSwitch plugin ignores 404
errors from the backend controller by allowing HTTP codes
to be selectively ignored on REST calls. This prevents
unnecessary exception handling and failover logic in calls
where 404 codes are acceptable.

Change-Id: Ia1118c039af3b45d96fb3f8a5fb5d3febdf50f4f
Fixes: bug #1200023
2013-07-11 15:45:59 -07:00

194 lines
6.1 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Big Switch Networks, 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 os
from mock import patch
from oslo.config import cfg
import webob.exc
import neutron.common.test_lib as test_lib
from neutron.extensions import portbindings
from neutron.manager import NeutronManager
from neutron.tests.unit import _test_extension_portbindings as test_bindings
import neutron.tests.unit.test_db_plugin as test_plugin
RESTPROXY_PKG_PATH = 'neutron.plugins.bigswitch.plugin'
class HTTPResponseMock():
status = 200
reason = 'OK'
def __init__(self, sock, debuglevel=0, strict=0, method=None,
buffering=False):
pass
def read(self):
return "{'status': '200 OK'}"
class HTTPResponseMock404():
status = 404
reason = 'Not Found'
def __init__(self, sock, debuglevel=0, strict=0, method=None,
buffering=False):
pass
def read(self):
return "{'status': '404 Not Found'}"
class HTTPConnectionMock():
def __init__(self, server, port, timeout):
self.response = None
pass
def request(self, action, uri, body, headers):
if uri.endswith('attachment') and action == 'DELETE':
self.response = HTTPResponseMock404(None)
else:
self.response = HTTPResponseMock(None)
return
def getresponse(self):
return self.response
def close(self):
pass
class BigSwitchProxyPluginV2TestCase(test_plugin.NeutronDbPluginV2TestCase):
_plugin_name = ('%s.NeutronRestProxyV2' % RESTPROXY_PKG_PATH)
def setUp(self):
etc_path = os.path.join(os.path.dirname(__file__), 'etc')
test_lib.test_config['config_files'] = [os.path.join(etc_path,
'restproxy.ini.test')]
self.httpPatch = patch('httplib.HTTPConnection', create=True,
new=HTTPConnectionMock)
self.addCleanup(self.httpPatch.stop)
self.httpPatch.start()
super(BigSwitchProxyPluginV2TestCase,
self).setUp(self._plugin_name)
class TestBigSwitchProxyBasicGet(test_plugin.TestBasicGet,
BigSwitchProxyPluginV2TestCase):
pass
class TestBigSwitchProxyV2HTTPResponse(test_plugin.TestV2HTTPResponse,
BigSwitchProxyPluginV2TestCase):
pass
class TestBigSwitchProxyPortsV2(test_plugin.TestPortsV2,
BigSwitchProxyPluginV2TestCase,
test_bindings.PortBindingsTestCase):
VIF_TYPE = portbindings.VIF_TYPE_OVS
HAS_PORT_FILTER = False
class TestBigSwitchProxyPortsV2IVS(test_plugin.TestPortsV2,
BigSwitchProxyPluginV2TestCase,
test_bindings.PortBindingsTestCase):
VIF_TYPE = portbindings.VIF_TYPE_IVS
HAS_PORT_FILTER = False
def setUp(self):
super(TestBigSwitchProxyPortsV2IVS,
self).setUp()
cfg.CONF.set_override('vif_type', 'ivs', 'NOVA')
class TestNoHostIDVIFOverride(test_plugin.TestPortsV2,
BigSwitchProxyPluginV2TestCase,
test_bindings.PortBindingsTestCase):
VIF_TYPE = portbindings.VIF_TYPE_OVS
HAS_PORT_FILTER = False
def setUp(self):
super(TestNoHostIDVIFOverride, self).setUp()
cfg.CONF.set_override('vif_type', 'ovs', 'NOVA')
def test_port_vif_details(self):
kwargs = {'name': 'name', 'device_id': 'override_dev'}
with self.port(**kwargs) as port:
self.assertEqual(port['port']['binding:vif_type'],
portbindings.VIF_TYPE_OVS)
class TestBigSwitchVIFOverride(test_plugin.TestPortsV2,
BigSwitchProxyPluginV2TestCase,
test_bindings.PortBindingsTestCase):
VIF_TYPE = portbindings.VIF_TYPE_OVS
HAS_PORT_FILTER = False
def setUp(self):
super(TestBigSwitchVIFOverride,
self).setUp()
cfg.CONF.set_override('vif_type', 'ovs', 'NOVA')
def test_port_vif_details(self):
kwargs = {'name': 'name', 'binding:host_id': 'ivshost',
'device_id': 'override_dev'}
with self.port(**kwargs) as port:
self.assertEqual(port['port']['binding:vif_type'],
portbindings.VIF_TYPE_IVS)
kwargs = {'name': 'name2', 'binding:host_id': 'someotherhost',
'device_id': 'other_dev'}
with self.port(**kwargs) as port:
self.assertEqual(port['port']['binding:vif_type'], self.VIF_TYPE)
def _make_port(self, fmt, net_id, expected_res_status=None, **kwargs):
res = self._create_port(fmt, net_id, expected_res_status,
('binding:host_id', ), **kwargs)
# Things can go wrong - raise HTTP exc with res code only
# so it can be caught by unit tests
if res.status_int >= 400:
raise webob.exc.HTTPClientError(code=res.status_int)
return self.deserialize(fmt, res)
class TestBigSwitchProxyNetworksV2(test_plugin.TestNetworksV2,
BigSwitchProxyPluginV2TestCase):
pass
class TestBigSwitchProxySubnetsV2(test_plugin.TestSubnetsV2,
BigSwitchProxyPluginV2TestCase):
pass
class TestBigSwitchProxySync(BigSwitchProxyPluginV2TestCase):
def test_send_data(self):
plugin_obj = NeutronManager.get_plugin()
result = plugin_obj._send_all_data()
self.assertEqual(result[0], 200)