diff --git a/.bzrignore b/.bzrignore
index 421e2bda..e046ea55 100644
--- a/.bzrignore
+++ b/.bzrignore
@@ -1,3 +1,5 @@
 bin
 .coverage
+.tox
+.testrepository
 tags
diff --git a/.testr.conf b/.testr.conf
new file mode 100644
index 00000000..801646bb
--- /dev/null
+++ b/.testr.conf
@@ -0,0 +1,8 @@
+[DEFAULT]
+test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
+             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
+             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
+             ${PYTHON:-python} -m subunit.run discover -t ./ ./unit_tests $LISTOPT $IDOPTION
+
+test_id_option=--load-list $IDFILE
+test_list_option=--list
diff --git a/hooks/nova_compute_utils.py b/hooks/nova_compute_utils.py
index 032dbc00..e3beb462 100644
--- a/hooks/nova_compute_utils.py
+++ b/hooks/nova_compute_utils.py
@@ -299,8 +299,9 @@ def resource_map():
 
             conf = neutron_plugin_attribute(plugin, 'config', net_manager)
             svcs = neutron_plugin_attribute(plugin, 'services', net_manager)
-            ctxts = (neutron_plugin_attribute(plugin, 'contexts', net_manager)
-                     or [])
+            ctxts = (neutron_plugin_attribute(plugin,
+                                              'contexts', net_manager) or
+                     [])
             resource_map[conf] = {}
             resource_map[conf]['services'] = svcs
             resource_map[conf]['contexts'] = ctxts
@@ -373,8 +374,8 @@ def determine_packages():
     if (net_manager in ['flatmanager', 'flatdhcpmanager'] and
             config('multi-host').lower() == 'yes'):
         packages.extend(['nova-api', 'nova-network'])
-    elif (net_manager in ['quantum', 'neutron']
-            and neutron_plugin_legacy_mode()):
+    elif (net_manager in ['quantum', 'neutron'] and
+            neutron_plugin_legacy_mode()):
         plugin = neutron_plugin()
         pkg_lists = neutron_plugin_attribute(plugin, 'packages', net_manager)
         for pkg_list in pkg_lists:
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..426002dc
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+PyYAML>=3.1.0
+simplejson>=2.2.0
+netifaces>=0.10.4
+netaddr>=0.7.12,!=0.7.16
+Jinja2>=2.6  # BSD License (3 clause)
+six>=1.9.0
+dnspython>=1.12.0
+psutil>=1.1.1,<2.0.0
diff --git a/test-requirements.txt b/test-requirements.txt
new file mode 100644
index 00000000..3af44d73
--- /dev/null
+++ b/test-requirements.txt
@@ -0,0 +1,8 @@
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+coverage>=3.6
+mock>=1.2
+flake8>=2.2.4,<=2.4.1
+os-testr>=0.4.1
+charm-tools
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 00000000..859784f7
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,29 @@
+[tox]
+envlist = lint,py27
+skipsdist = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+install_command =
+  pip install --allow-unverified python-apt {opts} {packages}
+commands = ostestr {posargs}
+
+[testenv:py27]
+basepython = python2.7
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+
+[testenv:lint]
+basepython = python2.7
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+commands = flake8 {posargs} actions hooks unit_tests tests
+           charm proof
+
+[testenv:venv]
+commands = {posargs}
+
+[flake8]
+ignore = E402,E226
+exclude = hooks/charmhelpers
diff --git a/unit_tests/test_actions_openstack_upgrade.py b/unit_tests/test_actions_openstack_upgrade.py
index 5c295b0a..43237e50 100644
--- a/unit_tests/test_actions_openstack_upgrade.py
+++ b/unit_tests/test_actions_openstack_upgrade.py
@@ -49,7 +49,7 @@ class TestNovaComputeUpgradeActions(CharmTestCase):
     @patch('charmhelpers.contrib.openstack.utils.git_install_requested')  # noqa
     @patch('charmhelpers.contrib.openstack.utils.openstack_upgrade_available')  # noqa
     @patch('charmhelpers.contrib.openstack.utils.juju_log')
-    def test_openstack_upgrade_false(self,  log, upgrade_avail, git_requested,
+    def test_openstack_upgrade_false(self, log, upgrade_avail, git_requested,
                                      action_set, config):
 
         git_requested.return_value = False
diff --git a/unit_tests/test_nova_compute_utils.py b/unit_tests/test_nova_compute_utils.py
index e367df28..92dbefe6 100644
--- a/unit_tests/test_nova_compute_utils.py
+++ b/unit_tests/test_nova_compute_utils.py
@@ -326,7 +326,7 @@ class NovaComputeUtilsTests(CharmTestCase):
                 call(authkey_root + '0'),
                 call(authkey_root + '1'),
                 call(authkey_root + '2')
-                ]
+            ]
             self.assertEquals(sorted(self.relation_get.call_args_list),
                               sorted(expected_relations))