move db creation into fixtures and clean db for each test

nova/tests/objectstore_unittest.py

@@ -311,4 +311,5 @@ class S3APITestCase(test.TestCase):
         self.auth_manager.delete_user('admin')
         self.auth_manager.delete_project('admin')
         stop_listening = defer.maybeDeferred(self.listening_port.stopListening)
+        super(S3APITestCase, self).tearDown()
         return defer.DeferredList([stop_listening])

nova/tests/test_direct.py

@@ -52,6 +52,7 @@ class DirectTestCase(test.TestCase):
 
     def tearDown(self):
         direct.ROUTES = {}
+        super(DirectTestCase, self).tearDown()
 
     def test_delegated_auth(self):
         req = webob.Request.blank('/fake/context')

nova/tests/test_scheduler.py

@@ -150,6 +150,7 @@ class SimpleDriverTestCase(test.TestCase):
     def tearDown(self):
         self.manager.delete_user(self.user)
         self.manager.delete_project(self.project)
+        super(SimpleDriverTestCase, self).tearDown()
 
     def _create_instance(self, **kwargs):
         """Create a test instance"""

nova/tests/test_virt.py

@@ -206,9 +206,9 @@ class LibvirtConnTestCase(test.TestCase):
             self.assertEquals(uri, testuri)
 
     def tearDown(self):
-        super(LibvirtConnTestCase, self).tearDown()
         self.manager.delete_project(self.project)
         self.manager.delete_user(self.user)
+        super(LibvirtConnTestCase, self).tearDown()
 
 
 class IptablesFirewallTestCase(test.TestCase):
@@ -388,6 +388,7 @@ class NWFilterTestCase(test.TestCase):
     def tearDown(self):
         self.manager.delete_project(self.project)
         self.manager.delete_user(self.user)
+        super(NWFilterTestCase, self).tearDown()
 
     def test_cidr_rule_nwfilter_xml(self):
         cloud_controller = cloud.CloudController()