Add functional tests for OVSDB Connection

Add functional tests for the class:
neutron.agent.ovsdb.native.connection.Connection

Change-Id: I92ab574f04efb5e09802fc1d97c2a5715b4ae48d
Related-Bug: 1612403
Co-Authored-By: Terry Wilson <twilson@redhat.com>

neutron/tests/functional/agent/ovsdb/native/test_connection.py

@@ -0,0 +1,30 @@
+# 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.
+
+from neutron.agent.ovsdb.native import connection
+from neutron.tests.functional import base
+from oslo_config import cfg
+
+
+class OVSDBConnectionTestCase(base.BaseSudoTestCase):
+    def setUp(self):
+        super(OVSDBConnectionTestCase, self).setUp()
+        self.connection = connection.Connection(
+            cfg.CONF.OVS.ovsdb_connection,
+            cfg.CONF.ovs_vsctl_timeout, 'Open_vSwitch')
+
+    def test_limit_tables(self):
+        tables = ['Open_vSwitch', 'Bridge', 'Port']
+        self.connection.start(table_name_list=tables)
+        self.assertItemsEqual(tables, self.connection.idl.tables.keys())