fef94d0d73
Save space in the db by allowing templates (especially nested templates) to reference the same template files dictionary objects, now stored in the table raw_template_files. Also, cache template files per heat-engine process as a RAM/performance optimization. Also, begin to allow for future rolling upgrades with oslo.versionedobjects. Change-Id: I1842ea6ba6773a135b1007b793a5f0884417747d Closes-Bug: 1570983
43 lines
1.7 KiB
Python
43 lines
1.7 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
from heat.engine import template_files
|
|
from heat.tests import common
|
|
|
|
template_files_1 = {'template file 1': 'Contents of template 1',
|
|
'template file 2': 'More template contents'}
|
|
|
|
|
|
class TestTemplateFiles(common.HeatTestCase):
|
|
|
|
def test_cache_miss(self):
|
|
tf1 = template_files.TemplateFiles(template_files_1)
|
|
tf1.store()
|
|
# As this is the only reference to the value in _d, deleting
|
|
# t1.files will cause the value to get removed from _d (due to
|
|
# it being a WeakValueDictionary.
|
|
del tf1.files
|
|
self.assertNotIn(tf1.files_id, template_files._d)
|
|
# this will cause the cache refresh
|
|
self.assertEqual(template_files_1['template file 1'],
|
|
tf1['template file 1'])
|
|
self.assertEqual(template_files_1, template_files._d[tf1.files_id])
|
|
|
|
def test_d_weakref_behaviour(self):
|
|
tf1 = template_files.TemplateFiles(template_files_1)
|
|
tf1.store()
|
|
tf2 = template_files.TemplateFiles(tf1)
|
|
del tf1.files
|
|
self.assertIn(tf2.files_id, template_files._d)
|
|
del tf2.files
|
|
self.assertNotIn(tf2.files_id, template_files._d)
|