Use placement context in placement functional tests

A few placement functional tests were importing and using
nova.context for a RequestContext. Placement has its own
in nova.api.openstack.placement.context so use that instead.

In the process, stop using an 'admin' context. It is not
necessary in placement as we do not do any policy checking
at the database level.

Change-Id: I1f6e6db6aca7dd160d3e94bb0b6ebf9b4f8dfd7d

nova/tests/functional/api/openstack/placement/db/test_base.py

@@ -14,13 +14,13 @@
 
 from oslo_utils import uuidutils
 
+from nova.api.openstack.placement import context
 from nova.api.openstack.placement import deploy
 from nova.api.openstack.placement import exception
 from nova.api.openstack.placement.objects import consumer as consumer_obj
 from nova.api.openstack.placement.objects import project as project_obj
 from nova.api.openstack.placement.objects import resource_provider as rp_obj
 from nova.api.openstack.placement.objects import user as user_obj
-from nova import context
 from nova import test
 from nova.tests import fixtures
 from nova.tests import uuidsentinel as uuids

nova/tests/functional/api/openstack/placement/db/test_consumer.py

@@ -13,13 +13,13 @@
 from oslo_config import cfg
 import sqlalchemy as sa
 
+from nova.api.openstack.placement import context
 from nova.api.openstack.placement import db_api
 from nova.api.openstack.placement import exception
 from nova.api.openstack.placement.objects import consumer as consumer_obj
 from nova.api.openstack.placement.objects import project as project_obj
 from nova.api.openstack.placement.objects import resource_provider as rp_obj
 from nova.api.openstack.placement.objects import user as user_obj
-from nova import context
 from nova import rc_fields as fields
 from nova import test
 from nova.tests import fixtures

nova/tests/functional/api/openstack/placement/fixtures/gabbits.py

@@ -16,6 +16,7 @@ from gabbi import fixture
 from oslo_middleware import cors
 from oslo_utils import uuidutils
 
+from nova.api.openstack.placement import context
 from nova.api.openstack.placement import deploy
 from nova.api.openstack.placement import exception
 from nova.api.openstack.placement.objects import consumer as consumer_obj
@@ -25,7 +26,6 @@ from nova.api.openstack.placement.objects import user as user_obj
 from nova.api.openstack.placement import policies
 from nova import conf
 from nova import config
-from nova import context
 from nova import rc_fields as fields
 from nova.tests import fixtures
 from nova.tests.functional.api.openstack.placement.db import test_base as tb
@@ -69,6 +69,8 @@ class APIFixture(fixture.GabbiFixture):
         self.conf.set_override('connection', "sqlite://",
                                group='placement_database')
 
+        self.context = context.RequestContext()
+
         # Register CORS opts, but do not set config. This has the
         # effect of exercising the "don't use cors" path in
         # deploy.py. Without setting some config the group will not
@@ -136,7 +138,6 @@ class AllocationFixture(APIFixture):
     # TODO(jaypipes): Simplify and restructure this fixture
     def start_fixture(self):
         super(AllocationFixture, self).start_fixture()
-        self.context = context.get_admin_context()
 
         # For use creating and querying allocations/usages
         os.environ['ALT_USER_ID'] = uuidutils.generate_uuid()
@@ -279,7 +280,6 @@ class SharedStorageFixture(APIFixture):
 
     def start_fixture(self):
         super(SharedStorageFixture, self).start_fixture()
-        self.context = context.get_admin_context()
 
         agg_uuid = uuidutils.generate_uuid()
 
@@ -339,7 +339,6 @@ class NonSharedStorageFixture(APIFixture):
     """
     def start_fixture(self):
         super(NonSharedStorageFixture, self).start_fixture()
-        self.context = context.get_admin_context()
 
         cn1_uuid = uuidutils.generate_uuid()
         cn2_uuid = uuidutils.generate_uuid()
@@ -472,7 +471,7 @@ class GranularFixture(APIFixture):
     def _create_provider(self, name, *aggs, **kwargs):
         # TODO(efried): Common with test_allocation_candidates.ProviderDBBase
         parent = kwargs.get('parent')
-        rp = rp_obj.ResourceProvider(self.ctx, name=name,
+        rp = rp_obj.ResourceProvider(self.context, name=name,
                                      uuid=getattr(uuids, name))
         if parent:
             rp.parent_provider_uuid = parent
@@ -483,9 +482,9 @@ class GranularFixture(APIFixture):
 
     def start_fixture(self):
         super(GranularFixture, self).start_fixture()
-        self.ctx = context.get_admin_context()
 
-        rp_obj.ResourceClass(context=self.ctx, name='CUSTOM_NET_MBPS').create()
+        rp_obj.ResourceClass(
+            context=self.context, name='CUSTOM_NET_MBPS').create()
 
         os.environ['AGGA'] = uuids.aggA
         os.environ['AGGB'] = uuids.aggB

nova/tests/functional/api/openstack/placement/test_direct.py

@@ -12,9 +12,9 @@
 
 from oslo_config import cfg
 
+from nova.api.openstack.placement import context
 from nova.api.openstack.placement import direct
 from nova.api.openstack.placement.objects import resource_provider
-from nova import context
 from nova import test
 from nova.tests import fixtures
 from nova.tests import uuidsentinel
@@ -31,7 +31,7 @@ class TestDirect(test.NoDBTestCase):
         super(TestDirect, self).setUp()
         self.api_db = self.useFixture(fixtures.Database(database='placement'))
         self._reset_traits_synced()
-        self.context = context.get_admin_context()
+        self.context = context.RequestContext()
         self.addCleanup(self._reset_traits_synced)
 
     @staticmethod