fix functional gate

new keystone libs are breaking the functional tests. it seems
keystonemiddleware is implicitly being loaded when calling
prepare_service. we don't really need to call this so let's see
if it changes anything if we stop calling it.

Closes-Bug: #1522166
Change-Id: If01bcb6543fe164d79f785e20668106308244f75

ceilometer/tests/functional/gabbi/fixtures.py

@@ -29,7 +29,6 @@ from six.moves.urllib import parse as urlparse
 from ceilometer.event.storage import models
 from ceilometer.publisher import utils
 from ceilometer import sample
-from ceilometer import service
 from ceilometer import storage
 
 # TODO(chdent): For now only MongoDB is supported, because of easy
@@ -55,9 +54,9 @@ class ConfigFixture(fixture.GabbiFixture):
         if engine not in ENGINES:
             raise case.SkipTest('Database engine not supported')
 
-        service.prepare_service(argv=[], config_files=[])
         conf = fixture_config.Config().conf
         self.conf = conf
+        self.conf([], project='ceilometer', validate_default_values=True)
         opts.set_defaults(self.conf)
         conf.import_group('api', 'ceilometer.api.controllers.v2.root')
         conf.import_opt('store_events', 'ceilometer.notification',

ceilometer/tests/functional/test_notification.py

@@ -32,7 +32,6 @@ from ceilometer.compute.notifications import instance
 from ceilometer import messaging
 from ceilometer import notification
 from ceilometer.publisher import test as test_publisher
-from ceilometer import service
 from ceilometer.tests import base as tests_base
 
 TEST_NOTICE_CTXT = {
@@ -218,7 +217,7 @@ class BaseRealNotification(tests_base.BaseTestCase):
         super(BaseRealNotification, self).setUp()
         self.CONF = self.useFixture(fixture_config.Config()).conf
         # Dummy config file to avoid looking for system config
-        service.prepare_service(argv=[], config_files=[])
+        self.CONF([], project='ceilometer', validate_default_values=True)
         self.setup_messaging(self.CONF, 'nova')
 
         pipeline_cfg_file = self.setup_pipeline(['instance', 'memory'])
@@ -466,7 +465,7 @@ class TestRealNotificationMultipleAgents(tests_base.BaseTestCase):
     def setUp(self):
         super(TestRealNotificationMultipleAgents, self).setUp()
         self.CONF = self.useFixture(fixture_config.Config()).conf
-        service.prepare_service(argv=[], config_files=[])
+        self.CONF([], project='ceilometer', validate_default_values=True)
         self.setup_messaging(self.CONF, 'nova')
 
         pipeline_cfg_file = self.setup_pipeline(['instance', 'memory'])