diff --git a/neutron/tests/base.py b/neutron/tests/base.py
index 7cce573fdd..72c81beb4e 100644
--- a/neutron/tests/base.py
+++ b/neutron/tests/base.py
@@ -16,12 +16,10 @@
 """Base Test Case for all Unit Tests"""
 
 import contextlib
-import gc
 import logging as std_logging
 import os
 import os.path
 import sys
-import weakref
 
 import eventlet.timeout
 import fixtures
@@ -32,8 +30,6 @@ import testtools
 
 from neutron.common import config
 from neutron.common import rpc as n_rpc
-from neutron.db import agentschedulers_db
-from neutron import manager
 from neutron.tests import fake_notifier
 from neutron.tests import post_mortem_debug
 
@@ -61,42 +57,6 @@ def fake_consume_in_threads(self):
 
 class BaseTestCase(testtools.TestCase):
 
-    def cleanup_core_plugin(self):
-        """Ensure that the core plugin is deallocated."""
-        nm = manager.NeutronManager
-        if not nm.has_instance():
-            return
-
-        #TODO(marun) Fix plugins that do not properly initialize notifiers
-        agentschedulers_db.AgentSchedulerDbMixin.agent_notifiers = {}
-
-        # Perform a check for deallocation only if explicitly
-        # configured to do so since calling gc.collect() after every
-        # test increases test suite execution time by ~50%.
-        check_plugin_deallocation = (
-            os.environ.get('OS_CHECK_PLUGIN_DEALLOCATION') in TRUE_STRING)
-        if check_plugin_deallocation:
-            plugin = weakref.ref(nm._instance.plugin)
-
-        nm.clear_instance()
-
-        if check_plugin_deallocation:
-            gc.collect()
-
-            #TODO(marun) Ensure that mocks are deallocated?
-            if plugin() and not isinstance(plugin(), mock.Base):
-                self.fail('The plugin for this test was not deallocated.')
-
-    def setup_coreplugin(self, core_plugin=None):
-        if core_plugin is not None:
-            cfg.CONF.set_override('core_plugin', core_plugin)
-
-    def setup_notification_driver(self, notification_driver=None):
-        self.addCleanup(fake_notifier.reset)
-        if notification_driver is None:
-            notification_driver = [fake_notifier.__name__]
-        cfg.CONF.set_override("notification_driver", notification_driver)
-
     @staticmethod
     def config_parse(conf=None, args=None):
         """Create the default configurations."""
@@ -110,9 +70,6 @@ class BaseTestCase(testtools.TestCase):
 
     def setUp(self):
         super(BaseTestCase, self).setUp()
-        # Ensure plugin cleanup is triggered last so that
-        # test-specific cleanup has a chance to release references.
-        self.addCleanup(self.cleanup_core_plugin)
 
         # Configure this first to ensure pm debugging support for setUp()
         if os.environ.get('OS_POST_MORTEM_DEBUG') in TRUE_STRING:
diff --git a/neutron/tests/unit/metaplugin/test_metaplugin.py b/neutron/tests/unit/metaplugin/test_metaplugin.py
index 57e0277911..02104bc207 100644
--- a/neutron/tests/unit/metaplugin/test_metaplugin.py
+++ b/neutron/tests/unit/metaplugin/test_metaplugin.py
@@ -26,6 +26,7 @@ from neutron.extensions import flavor as ext_flavor
 from neutron.openstack.common import uuidutils
 from neutron.plugins.metaplugin import meta_neutron_plugin
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 CONF_FILE = ""
 META_PATH = "neutron.plugins.metaplugin"
@@ -67,7 +68,8 @@ def unregister_meta_hooks():
         models_v2.Port, 'metaplugin_port', None, None, None)
 
 
-class MetaNeutronPluginV2Test(testlib_api.SqlTestCase):
+class MetaNeutronPluginV2Test(testlib_api.SqlTestCase,
+                              testlib_plugin.PluginSetupHelper):
     """Class conisting of MetaNeutronPluginV2 unit tests."""
 
     has_l3 = True
diff --git a/neutron/tests/unit/services/metering/test_metering_agent.py b/neutron/tests/unit/services/metering/test_metering_agent.py
index b3e3511fea..356b24b262 100644
--- a/neutron/tests/unit/services/metering/test_metering_agent.py
+++ b/neutron/tests/unit/services/metering/test_metering_agent.py
@@ -22,6 +22,7 @@ from neutron.openstack.common import uuidutils
 from neutron.services.metering.agents import metering_agent
 from neutron.tests import base
 from neutron.tests import fake_notifier
+from neutron.tests.unit import testlib_plugin
 
 
 _uuid = uuidutils.generate_uuid
@@ -38,7 +39,8 @@ ROUTERS = [{'status': 'ACTIVE',
             'id': _uuid()}]
 
 
-class TestMeteringOperations(base.BaseTestCase):
+class TestMeteringOperations(base.BaseTestCase,
+                             testlib_plugin.NotificationSetupHelper):
 
     def setUp(self):
         super(TestMeteringOperations, self).setUp()
diff --git a/neutron/tests/unit/test_api_v2.py b/neutron/tests/unit/test_api_v2.py
index 30901913ee..cd08390d92 100644
--- a/neutron/tests/unit/test_api_v2.py
+++ b/neutron/tests/unit/test_api_v2.py
@@ -39,6 +39,7 @@ from neutron import quota
 from neutron.tests import base
 from neutron.tests import fake_notifier
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 
 ROOTDIR = os.path.dirname(os.path.dirname(__file__))
@@ -87,7 +88,7 @@ class ResourceIndexTestCase(base.BaseTestCase):
         self.assertEqual(link['rel'], 'self')
 
 
-class APIv2TestBase(base.BaseTestCase):
+class APIv2TestBase(base.BaseTestCase, testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(APIv2TestBase, self).setUp()
 
@@ -1118,7 +1119,7 @@ class JSONV2TestCase(APIv2TestBase, testlib_api.WebTestCase):
         self.assertEqual(res.status_int, 400)
 
 
-class SubresourceTest(base.BaseTestCase):
+class SubresourceTest(base.BaseTestCase, testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(SubresourceTest, self).setUp()
 
@@ -1385,7 +1386,7 @@ class QuotaTest(APIv2TestBase):
         self.assertEqual(res.status_int, exc.HTTPCreated.code)
 
 
-class ExtensionTestCase(base.BaseTestCase):
+class ExtensionTestCase(base.BaseTestCase, testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(ExtensionTestCase, self).setUp()
         plugin = 'neutron.neutron_plugin_base_v2.NeutronPluginBaseV2'
diff --git a/neutron/tests/unit/test_api_v2_extension.py b/neutron/tests/unit/test_api_v2_extension.py
index 856f8290c7..b754c2b139 100644
--- a/neutron/tests/unit/test_api_v2_extension.py
+++ b/neutron/tests/unit/test_api_v2_extension.py
@@ -31,9 +31,11 @@ from neutron import quota
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import test_extensions
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 
-class ExtensionTestCase(testlib_api.WebTestCase):
+class ExtensionTestCase(testlib_api.WebTestCase,
+                        testlib_plugin.PluginSetupHelper):
     def _resotre_attr_map(self):
         attributes.RESOURCE_ATTRIBUTE_MAP = self._saved_attr_map
 
diff --git a/neutron/tests/unit/test_db_plugin.py b/neutron/tests/unit/test_db_plugin.py
index 0145a34b86..1eb8f4e744 100644
--- a/neutron/tests/unit/test_db_plugin.py
+++ b/neutron/tests/unit/test_db_plugin.py
@@ -39,6 +39,7 @@ from neutron.openstack.common import importutils
 from neutron.tests import base
 from neutron.tests.unit import test_extensions
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 DB_PLUGIN_KLASS = 'neutron.db.db_base_plugin_v2.NeutronDbPluginV2'
 
@@ -61,7 +62,8 @@ def _fake_get_sorting_helper(self, request):
     return api_common.SortingEmulatedHelper(request, self._attr_info)
 
 
-class NeutronDbPluginV2TestCase(testlib_api.WebTestCase):
+class NeutronDbPluginV2TestCase(testlib_api.WebTestCase,
+                                testlib_plugin.PluginSetupHelper):
     fmt = 'json'
     resource_prefix_map = {}
 
diff --git a/neutron/tests/unit/test_db_plugin_level.py b/neutron/tests/unit/test_db_plugin_level.py
index a0ebbb5e66..c96cefa0b3 100644
--- a/neutron/tests/unit/test_db_plugin_level.py
+++ b/neutron/tests/unit/test_db_plugin_level.py
@@ -20,9 +20,11 @@ from neutron import context
 from neutron import manager
 from neutron.tests.unit import test_db_plugin
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 
-class TestNetworks(testlib_api.SqlTestCase):
+class TestNetworks(testlib_api.SqlTestCase,
+                   testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(TestNetworks, self).setUp()
         self._tenant_id = 'test-tenant'
diff --git a/neutron/tests/unit/test_extension_ext_gw_mode.py b/neutron/tests/unit/test_extension_ext_gw_mode.py
index 9079753936..c119470d39 100644
--- a/neutron/tests/unit/test_extension_ext_gw_mode.py
+++ b/neutron/tests/unit/test_extension_ext_gw_mode.py
@@ -30,6 +30,7 @@ from neutron.openstack.common import uuidutils
 from neutron.tests.unit import test_db_plugin
 from neutron.tests.unit import test_l3_plugin
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 _uuid = uuidutils.generate_uuid
 FAKE_GW_PORT_ID = _uuid()
@@ -74,7 +75,8 @@ class TestDbSepPlugin(test_l3_plugin.TestL3NatServicePlugin,
     supported_extension_aliases = ["router", "ext-gw-mode"]
 
 
-class TestL3GwModeMixin(testlib_api.SqlTestCase):
+class TestL3GwModeMixin(testlib_api.SqlTestCase,
+                        testlib_plugin.PluginSetupHelper):
 
     def setUp(self):
         super(TestL3GwModeMixin, self).setUp()
diff --git a/neutron/tests/unit/test_extension_extended_attribute.py b/neutron/tests/unit/test_extension_extended_attribute.py
index d57c3869b8..49f7dc32de 100644
--- a/neutron/tests/unit/test_extension_extended_attribute.py
+++ b/neutron/tests/unit/test_extension_extended_attribute.py
@@ -32,6 +32,7 @@ from neutron.tests import base
 from neutron.tests.unit.extensions import extendedattribute as extattr
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 from neutron import wsgi
 
 _uuid = test_api_v2._uuid
@@ -66,7 +67,8 @@ class ExtensionExtendedAttributeTestPlugin(
         return self.objh[id]
 
 
-class ExtensionExtendedAttributeTestCase(base.BaseTestCase):
+class ExtensionExtendedAttributeTestCase(base.BaseTestCase,
+                                         testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(ExtensionExtendedAttributeTestCase, self).setUp()
         plugin = (
diff --git a/neutron/tests/unit/test_extension_pnet.py b/neutron/tests/unit/test_extension_pnet.py
index 211fe7151c..64bc48a9a3 100644
--- a/neutron/tests/unit/test_extension_pnet.py
+++ b/neutron/tests/unit/test_extension_pnet.py
@@ -32,6 +32,7 @@ from neutron import quota
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import test_extensions
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 
 class ProviderExtensionManager(object):
@@ -49,7 +50,8 @@ class ProviderExtensionManager(object):
         return pnet.get_extended_resources(version)
 
 
-class ProvidernetExtensionTestCase(testlib_api.WebTestCase):
+class ProvidernetExtensionTestCase(testlib_api.WebTestCase,
+                                   testlib_plugin.PluginSetupHelper):
     fmt = 'json'
 
     def setUp(self):
diff --git a/neutron/tests/unit/test_l3_plugin.py b/neutron/tests/unit/test_l3_plugin.py
index 209e68bc09..4fa4265ad9 100644
--- a/neutron/tests/unit/test_l3_plugin.py
+++ b/neutron/tests/unit/test_l3_plugin.py
@@ -48,7 +48,7 @@ from neutron.tests.unit import test_agent_ext_plugin
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import test_api_v2_extension
 from neutron.tests.unit import test_db_plugin
-
+from neutron.tests.unit import testlib_plugin
 
 LOG = logging.getLogger(__name__)
 
@@ -1920,7 +1920,8 @@ class L3AgentDbTestCaseBase(L3NatTestCaseMixin):
         self._test_notify_op_agent(self._test_floatingips_op_agent)
 
 
-class L3BaseForIntTests(test_db_plugin.NeutronDbPluginV2TestCase):
+class L3BaseForIntTests(test_db_plugin.NeutronDbPluginV2TestCase,
+                        testlib_plugin.NotificationSetupHelper):
 
     mock_rescheduling = True
 
@@ -1941,7 +1942,8 @@ class L3BaseForIntTests(test_db_plugin.NeutronDbPluginV2TestCase):
         self.setup_notification_driver()
 
 
-class L3BaseForSepTests(test_db_plugin.NeutronDbPluginV2TestCase):
+class L3BaseForSepTests(test_db_plugin.NeutronDbPluginV2TestCase,
+                        testlib_plugin.NotificationSetupHelper):
 
     def setUp(self, plugin=None, ext_mgr=None):
         # the plugin without L3 support
diff --git a/neutron/tests/unit/test_l3_schedulers.py b/neutron/tests/unit/test_l3_schedulers.py
index d329defa1a..a90d89e60a 100644
--- a/neutron/tests/unit/test_l3_schedulers.py
+++ b/neutron/tests/unit/test_l3_schedulers.py
@@ -38,6 +38,7 @@ from neutron.scheduler import l3_agent_scheduler
 from neutron.tests.unit import test_db_plugin
 from neutron.tests.unit import test_l3_plugin
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 HOST = 'my_l3_host'
 FIRST_L3_AGENT = {
@@ -351,7 +352,8 @@ class L3DvrScheduler(l3_db.L3_NAT_db_mixin,
     pass
 
 
-class L3DvrSchedulerTestCase(testlib_api.SqlTestCase):
+class L3DvrSchedulerTestCase(testlib_api.SqlTestCase,
+                             testlib_plugin.PluginSetupHelper):
 
     def setUp(self):
         plugin = 'neutron.plugins.ml2.plugin.Ml2Plugin'
diff --git a/neutron/tests/unit/test_neutron_manager.py b/neutron/tests/unit/test_neutron_manager.py
index 3c8dc712a4..46944512b1 100644
--- a/neutron/tests/unit/test_neutron_manager.py
+++ b/neutron/tests/unit/test_neutron_manager.py
@@ -24,6 +24,7 @@ from neutron.openstack.common import log as logging
 from neutron.plugins.common import constants
 from neutron.tests import base
 from neutron.tests.unit import dummy_plugin
+from neutron.tests.unit import testlib_plugin
 
 
 LOG = logging.getLogger(__name__)
@@ -39,7 +40,8 @@ class CorePluginWithAgentNotifiers(object):
                        'dhcp': 'dhcp_agent_notifier'}
 
 
-class NeutronManagerTestCase(base.BaseTestCase):
+class NeutronManagerTestCase(base.BaseTestCase,
+                             testlib_plugin.PluginSetupHelper):
 
     def setUp(self):
         super(NeutronManagerTestCase, self).setUp()
diff --git a/neutron/tests/unit/test_quota_ext.py b/neutron/tests/unit/test_quota_ext.py
index e612b0fc9b..262fb04411 100644
--- a/neutron/tests/unit/test_quota_ext.py
+++ b/neutron/tests/unit/test_quota_ext.py
@@ -30,6 +30,7 @@ from neutron import quota
 from neutron.tests import base
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 TARGET_PLUGIN = ('neutron.plugins.linuxbridge.lb_neutron_plugin'
                  '.LinuxBridgePluginV2')
@@ -37,7 +38,8 @@ TARGET_PLUGIN = ('neutron.plugins.linuxbridge.lb_neutron_plugin'
 _get_path = test_api_v2._get_path
 
 
-class QuotaExtensionTestCase(testlib_api.WebTestCase):
+class QuotaExtensionTestCase(testlib_api.WebTestCase,
+                             testlib_plugin.PluginSetupHelper):
 
     def setUp(self):
         super(QuotaExtensionTestCase, self).setUp()
diff --git a/neutron/tests/unit/test_routerserviceinsertion.py b/neutron/tests/unit/test_routerserviceinsertion.py
index 4167217744..61d76b76e3 100644
--- a/neutron/tests/unit/test_routerserviceinsertion.py
+++ b/neutron/tests/unit/test_routerserviceinsertion.py
@@ -32,6 +32,7 @@ from neutron.extensions import routerservicetype as rst
 from neutron.plugins.common import constants
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 from neutron import wsgi
 
 _uuid = test_api_v2._uuid
@@ -150,7 +151,8 @@ class RouterServiceInsertionTestPlugin(
         pass
 
 
-class RouterServiceInsertionTestCase(testlib_api.SqlTestCase):
+class RouterServiceInsertionTestCase(testlib_api.SqlTestCase,
+                                     testlib_plugin.PluginSetupHelper):
     def setUp(self):
         super(RouterServiceInsertionTestCase, self).setUp()
         plugin = (
diff --git a/neutron/tests/unit/test_servicetype.py b/neutron/tests/unit/test_servicetype.py
index 3fe02f69b2..843983d03d 100644
--- a/neutron/tests/unit/test_servicetype.py
+++ b/neutron/tests/unit/test_servicetype.py
@@ -33,6 +33,7 @@ from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import test_db_plugin
 from neutron.tests.unit import test_extensions
 from neutron.tests.unit import testlib_api
+from neutron.tests.unit import testlib_plugin
 
 
 DEFAULT_SERVICE_DEFS = [{'service_class': constants.DUMMY,
@@ -162,7 +163,8 @@ class TestServiceTypeExtensionManager(object):
         return []
 
 
-class ServiceTypeExtensionTestCaseBase(testlib_api.WebTestCase):
+class ServiceTypeExtensionTestCaseBase(testlib_api.WebTestCase,
+                                       testlib_plugin.PluginSetupHelper):
     fmt = 'json'
 
     def setUp(self):
diff --git a/neutron/tests/unit/testlib_plugin.py b/neutron/tests/unit/testlib_plugin.py
new file mode 100644
index 0000000000..2ace0e4203
--- /dev/null
+++ b/neutron/tests/unit/testlib_plugin.py
@@ -0,0 +1,73 @@
+# Copyright 2014 OpenStack Foundation.
+# 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 gc
+import os
+import weakref
+
+import mock
+from oslo.config import cfg
+
+from neutron.db import agentschedulers_db
+from neutron import manager
+from neutron.tests import base
+from neutron.tests import fake_notifier
+
+
+class PluginSetupHelper(object):
+    """Mixin for use with testtools.TestCase."""
+
+    def cleanup_core_plugin(self):
+        """Ensure that the core plugin is deallocated."""
+        nm = manager.NeutronManager
+        if not nm.has_instance():
+            return
+
+        # TODO(marun) Fix plugins that do not properly initialize notifiers
+        agentschedulers_db.AgentSchedulerDbMixin.agent_notifiers = {}
+
+        # Perform a check for deallocation only if explicitly
+        # configured to do so since calling gc.collect() after every
+        # test increases test suite execution time by ~50%.
+        check_plugin_deallocation = (
+            os.environ.get('OS_CHECK_PLUGIN_DEALLOCATION') in base.TRUE_STRING)
+        if check_plugin_deallocation:
+            plugin = weakref.ref(nm._instance.plugin)
+
+        nm.clear_instance()
+
+        if check_plugin_deallocation:
+            gc.collect()
+
+            # TODO(marun) Ensure that mocks are deallocated?
+            if plugin() and not isinstance(plugin(), mock.Base):
+                self.fail('The plugin for this test was not deallocated.')
+
+    def setup_coreplugin(self, core_plugin=None):
+        # Plugin cleanup should be triggered last so that
+        # test-specific cleanup has a chance to release references.
+        self.addCleanup(self.cleanup_core_plugin)
+        if core_plugin is not None:
+            cfg.CONF.set_override('core_plugin', core_plugin)
+
+
+class NotificationSetupHelper(object):
+    """Mixin for use with testtools.TestCase."""
+
+    def setup_notification_driver(self, notification_driver=None):
+        self.addCleanup(fake_notifier.reset)
+        if notification_driver is None:
+            notification_driver = [fake_notifier.__name__]
+        cfg.CONF.set_override("notification_driver", notification_driver)
diff --git a/neutron/tests/unit/vmware/extensions/test_networkgw.py b/neutron/tests/unit/vmware/extensions/test_networkgw.py
index dd15dccb3d..3d223e9584 100644
--- a/neutron/tests/unit/vmware/extensions/test_networkgw.py
+++ b/neutron/tests/unit/vmware/extensions/test_networkgw.py
@@ -36,6 +36,7 @@ from neutron.tests import base
 from neutron.tests.unit import test_api_v2
 from neutron.tests.unit import test_db_plugin
 from neutron.tests.unit import test_extensions
+from neutron.tests.unit import testlib_plugin
 from neutron.tests.unit import vmware
 from neutron.tests.unit.vmware import test_nsx_plugin
 
@@ -61,7 +62,8 @@ class TestExtensionManager(object):
         return []
 
 
-class NetworkGatewayExtensionTestCase(base.BaseTestCase):
+class NetworkGatewayExtensionTestCase(base.BaseTestCase,
+                                      testlib_plugin.PluginSetupHelper):
 
     def setUp(self):
         super(NetworkGatewayExtensionTestCase, self).setUp()