vmware-nsx/quantum/tests/unit/cisco/test_nexus_plugin.py
Paul Michali 8ec8987c31 Remove cfg option default value and check if missing
Currently, several plugins already check config options at __init__()
for validity and will exit, if the settings are incorrect. However,
most (all?) config option definitions have default values, so if the
option is missing, a valid, but maybe unexpected value will be used.
This is what occurred in the bug.

The proposed fix is to take a config option, sql_connection, which is
used by many plugins, and remove the default value. Then, at init
time, when the config option is used in configure_db(), a check is
made for the value. If the value is not set, a warning is logged and
the value is set to the default, for db/api.py. It is expected that
this will be the only module to consume this config option.

Added UT to check that log warning is issued. Also, changed the timing
so that the test takes 0.25 secs vs 12 secs. Removed UTs in two plugin
tests that checked the default value for sql_connection.

Other alternatives explored in previous patches, were to either
raise an exception, or mark this config option as "required". This
resulted in a large number of changes to tests, and required config
overrides in plugins that imported quantum.db.api, but did not use
sql_connection.

In order to keep this solution (of this log-hanging fruit) fix, the
proposed, simpler change is being made.

Some cleanup to the Cisco plugin test case was also made, so that
the mock was more in line with what production code does.

bug 1059923

Change-Id: I8c2a4e05231ac4e172d0dccece067e6fdb354341
2013-02-12 09:24:22 -05:00

142 lines
5.1 KiB
Python

# Copyright (c) 2012 OpenStack, LLC.
#
# 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
import unittest
from quantum.db import api as db
from quantum.openstack.common import importutils
from quantum.plugins.cisco.common import cisco_constants as const
from quantum.plugins.cisco.db import network_models_v2
from quantum.plugins.cisco.nexus import cisco_nexus_plugin_v2
NEXUS_IP_ADDRESS = '1.1.1.1'
NEXUS_USERNAME = 'username'
NEXUS_PASSWORD = 'password'
HOSTNAME = 'testhost'
INSTANCE = 'testvm'
NEXUS_PORTS = '1/10'
NEXUS_SSH_PORT = '22'
NEXUS_DRIVER = ('quantum.plugins.cisco.tests.unit.v2.nexus.'
'fake_nexus_driver.CiscoNEXUSFakeDriver')
class TestCiscoNexusPlugin(unittest.TestCase):
def setUp(self):
"""
Set up function
"""
self.tenant_id = "test_tenant_cisco1"
self.net_name = "test_network_cisco1"
self.net_id = 000007
self.vlan_name = "q-" + str(self.net_id) + "vlan"
self.vlan_id = 267
self.second_net_name = "test_network_cisco2"
self.second_net_id = 000005
self.second_vlan_name = "q-" + str(self.second_net_id) + "vlan"
self.second_vlan_id = 265
self._nexus_switches = {
NEXUS_IP_ADDRESS: {
HOSTNAME: {
'ports': NEXUS_PORTS,
},
'ssh_port': {
'ssh_port': NEXUS_SSH_PORT
}
}
}
self._hostname = HOSTNAME
def new_nexus_init(self):
self._client = importutils.import_object(NEXUS_DRIVER)
self._nexus_ip = NEXUS_IP_ADDRESS
self._nexus_username = NEXUS_USERNAME
self._nexus_password = NEXUS_PASSWORD
self._nexus_ports = NEXUS_PORTS
self._nexus_ssh_port = NEXUS_SSH_PORT
self.credentials = {
self._nexus_ip: {
'username': self._nexus_username,
'password': self._nexus_password
}
}
db.configure_db()
with mock.patch.object(cisco_nexus_plugin_v2.NexusPlugin,
'__init__', new=new_nexus_init):
self._cisco_nexus_plugin = cisco_nexus_plugin_v2.NexusPlugin()
self._cisco_nexus_plugin._nexus_switches = self._nexus_switches
def test_a_create_network(self):
"""
Tests creation of two new Virtual Network.
Tests deletion of one Virtual Network.
This would result the following -
The Nexus device should have only one network
vlan configured on it's plugin configured
interfaces.
If running this test individually, run
test_nexus_clear_vlan after this test to clean
up the second vlan created by this test.
"""
tenant_id = self.tenant_id
net_name = self.net_name
net_id = self.net_id
vlan_name = self.vlan_name
vlan_id = self.vlan_id
second_net_name = self.second_net_name
second_net_id = self.second_net_id
second_vlan_name = self.second_vlan_name
second_vlan_id = self.second_vlan_id
new_net_dict = self._cisco_nexus_plugin.create_network(
tenant_id, net_name, net_id,
vlan_name, vlan_id, self._hostname, INSTANCE)
self.assertEqual(new_net_dict[const.NET_ID], net_id)
self.assertEqual(new_net_dict[const.NET_NAME], self.net_name)
self.assertEqual(new_net_dict[const.NET_VLAN_NAME], self.vlan_name)
self.assertEqual(new_net_dict[const.NET_VLAN_ID], self.vlan_id)
new_net_dict = self._cisco_nexus_plugin.create_network(
tenant_id, second_net_name, second_net_id,
second_vlan_name, second_vlan_id, self._hostname,
INSTANCE)
self.assertEqual(new_net_dict[const.NET_ID], second_net_id)
self.assertEqual(new_net_dict[const.NET_NAME], self.second_net_name)
self.assertEqual(new_net_dict[const.NET_VLAN_NAME],
self.second_vlan_name)
self.assertEqual(new_net_dict[const.NET_VLAN_ID], self.second_vlan_id)
def test_b_nexus_delete_port(self):
"""
Test to clean up second vlan of nexus device
created by test_create_delete_network. This
test will fail if it is run individually.
"""
expected_instance_id = self._cisco_nexus_plugin.delete_port(
INSTANCE, self.second_vlan_id
)
self.assertEqual(expected_instance_id, INSTANCE)
def tearDown(self):
"""Clear the test environment"""
pass
# Remove database contents
#db.clear_db(network_models_v2.model_base.BASEV2)