diff --git a/tests/compute/test_libvirt.py b/tests/compute/test_libvirt.py
index e1b64d629d..1205c0f9f6 100644
--- a/tests/compute/test_libvirt.py
+++ b/tests/compute/test_libvirt.py
@@ -132,7 +132,7 @@ class TestNetPollster(test_base.TestCase):
         domain.XMLDesc(0).AndReturn(dom_xml)
         self.mox.ReplayAll()
         interfaces = self.pollster._get_vnics(conn, self.instance)
-        self.assertTrue('vnet1' in  [x['name'] for x in interfaces])
+        self.assertTrue('vnet1' in [x['name'] for x in interfaces])
         self.assertTrue('fa:16:3e:71:ec:6d', [x['mac'] for x in interfaces])
         self.assertTrue([x['dhcpserver'] for x in interfaces])
 
diff --git a/tests/compute/test_nova_notifier.py b/tests/compute/test_nova_notifier.py
index b8e3392590..4686fed368 100644
--- a/tests/compute/test_nova_notifier.py
+++ b/tests/compute/test_nova_notifier.py
@@ -99,7 +99,8 @@ class TestNovaNotifier(base.TestCase):
                          "ephemeral_gb": "0",
                          "vcpus": 1,
                          "host": "fakehost",
-                         "availability_zone": "1e3ce043029547f1a61c1996d1a531a4",
+                         "availability_zone":
+                             "1e3ce043029547f1a61c1996d1a531a4",
                          "created_at": '2012-05-08 20:23:41',
                          "os_type": "linux",
                          "kernel_id": "kernelid",
@@ -113,11 +114,13 @@ class TestNovaNotifier(base.TestCase):
         self.stubs.Set(db, 'instance_get', self.fake_db_instance_get)
         self.stubs.Set(db, 'instance_info_cache_delete', self.do_nothing)
         self.stubs.Set(db, 'instance_destroy', self.do_nothing)
-        self.stubs.Set(db, 'instance_system_metadata_get', self.fake_db_instance_system_metadata_get)
+        self.stubs.Set(db, 'instance_system_metadata_get',
+                       self.fake_db_instance_system_metadata_get)
         self.stubs.Set(db, 'block_device_mapping_get_all_by_instance',
                        lambda context, instance: {})
         self.stubs.Set(db, 'instance_update_and_get_original',
-                       lambda context, uuid, kwargs: (self.instance, self.instance))
+                       lambda context, uuid, kwargs: (self.instance,
+                                                      self.instance))
 
         self.stubs.Set(publish, 'publish_counter', self.do_nothing)
         nova_notifier.notify.manager.pollsters = [('test', self.Pollster())]
@@ -128,6 +131,8 @@ class TestNovaNotifier(base.TestCase):
 
     def test_notifications(self):
         self.compute.terminate_instance(self.context, instance=self.instance)
-        self.assertEqual(self.Pollster.counters[0][0], nova_notifier.notify.manager)
-        self.assertEqual(self.Pollster.counters[0][1].id, self.instance['uuid'])
+        self.assertEqual(self.Pollster.counters[0][0],
+                         nova_notifier.notify.manager)
+        self.assertEqual(self.Pollster.counters[0][1].id,
+                         self.instance['uuid'])
         self.assertEqual(len(self.Pollster.counters), 1)
diff --git a/tests/image/test_glance.py b/tests/image/test_glance.py
index a977dc6c21..005c3bf30d 100644
--- a/tests/image/test_glance.py
+++ b/tests/image/test_glance.py
@@ -90,7 +90,8 @@ class TestImagePollster(base.TestCase):
         super(TestImagePollster, self).setUp()
         self.context = context.RequestContext('admin', 'admin', is_admin=True)
         self.manager = manager.AgentManager()
-        self.stubs.Set(glance._Base, 'iter_images', self.fake_glance_iter_images)
+        self.stubs.Set(glance._Base, 'iter_images',
+                       self.fake_glance_iter_images)
 
     def test_glance_image_counter(self):
         counters = list(glance.ImagePollster().get_counters(self.manager,
@@ -104,5 +105,6 @@ class TestImagePollster(base.TestCase):
                                                                 self.context))
         self.assertEqual(len(counters), 3)
         for image in IMAGE_LIST:
-            self.assert_(any(map(lambda counter: counter.volume == image['size'],
+            self.assert_(
+                any(map(lambda counter: counter.volume == image['size'],
                                  counters)))
diff --git a/tests/storage/test_impl_mongodb.py b/tests/storage/test_impl_mongodb.py
index 7ce4d133d8..64c6987b28 100644
--- a/tests/storage/test_impl_mongodb.py
+++ b/tests/storage/test_impl_mongodb.py
@@ -459,11 +459,9 @@ class TestGetEventInterval(MongoDBEngineTestBase):
         self.early1 = self.start - datetime.timedelta(minutes=20)
         self.early2 = self.start - datetime.timedelta(minutes=10)
 
-
         self.middle1 = self.start + datetime.timedelta(minutes=10)
         self.middle2 = self.end - datetime.timedelta(minutes=10)
 
-
         self.late1 = self.end + datetime.timedelta(minutes=10)
         self.late2 = self.end + datetime.timedelta(minutes=20)
 
diff --git a/tests/volume/test_notifications.py b/tests/volume/test_notifications.py
index 7d4d0ac4cc..5c93478c40 100644
--- a/tests/volume/test_notifications.py
+++ b/tests/volume/test_notifications.py
@@ -74,7 +74,8 @@ class TestNotifications(unittest.TestCase):
         counters = v.process_notification(NOTIFICATION_VOLUME_EXISTS)
         self.assertEqual(len(counters), 1)
         c = counters[0]
-        self.assertEqual(c.volume, NOTIFICATION_VOLUME_EXISTS['payload']['size'])
+        self.assertEqual(c.volume,
+                         NOTIFICATION_VOLUME_EXISTS['payload']['size'])
 
     def test_volume_delete(self):
         v = notifications.Volume()
@@ -88,4 +89,5 @@ class TestNotifications(unittest.TestCase):
         counters = v.process_notification(NOTIFICATION_VOLUME_EXISTS)
         self.assertEqual(len(counters), 1)
         c = counters[0]
-        self.assertEqual(c.volume, NOTIFICATION_VOLUME_EXISTS['payload']['size'])
+        self.assertEqual(c.volume,
+                         NOTIFICATION_VOLUME_EXISTS['payload']['size'])
diff --git a/tox.ini b/tox.ini
index 8999960bf9..260218305d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,7 +18,7 @@ commands = {toxinidir}/run_tests.sh --no-path-adjustment --with-coverage --cover
 
 [testenv:pep8]
 deps = pep8==1.1
-commands = pep8 --repeat --show-source ceilometer setup.py bin/ceilometer-agent-central bin/ceilometer-agent-compute bin/ceilometer-collector bin/ceilometer-api
+commands = pep8 --repeat --show-source ceilometer setup.py bin/ceilometer-agent-central bin/ceilometer-agent-compute bin/ceilometer-collector bin/ceilometer-api tests
 
 [testenv:py26-essex]
 deps = -r{toxinidir}/tools/pip-requires_essex