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# Copyright 2021 Red Hat, Inc
# 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 oslotest import base
from oslo_config import cfg
from oslo_config import fixture as config_fixture
from oslo_limit import exception
from oslo_limit import fixture
from oslo_limit import limit
from oslo_limit import opts
CONF = cfg.CONF
class TestFixture(base.BaseTestCase):
def setUp(self):
super().setUp()
self.config_fixture = self.useFixture(config_fixture.Config(CONF))
self.config_fixture.config(
group='oslo_limit',
endpoint_id='ENDPOINT_ID'
)
opts.register_opts(CONF)
# Set up some default projects, registered limits,
# and project limits
reglimits = {'widgets': 100,
'sprockets': 50}
projlimits = {
'project2': {'widgets': 10},
}
self.useFixture(fixture.LimitFixture(reglimits, projlimits))
# Some fake usage for projects
self.usage = {
'project1': {'sprockets': 10,
'widgets': 10},
'project2': {'sprockets': 3,
'widgets': 3},
}
def proj_usage(project_id, resource_names):
return self.usage[project_id]
# An enforcer to play with
self.enforcer = limit.Enforcer(proj_usage)
def test_project_under_registered_limit_only(self):
# Project1 has quota of 50 and 100 each, so no problem with
# 10+1 usage.
self.enforcer.enforce('project1', {'sprockets': 1,
'widgets': 1})
def test_project_over_registered_limit_only(self):
# Project1 has quota of 100 widgets, usage of 112 is over
# quota.
self.assertRaises(exception.ProjectOverLimit,
self.enforcer.enforce,
'project1', {'sprockets': 1,
'widgets': 102})
def test_project_over_registered_limit(self):
# delta=1 should be under the registered limit of 50
self.enforcer.enforce('project2', {'sprockets': 1})
# delta=50 should be over the registered limit of 50
self.assertRaises(exception.ProjectOverLimit,
self.enforcer.enforce,
'project2', {'sprockets': 50})
def test_project_over_project_limits(self):
# delta=7 is usage=10, right at our project limit of 10
self.enforcer.enforce('project2', {'widgets': 7})
# delta=10 is usage 13, over our project limit of 10
self.assertRaises(exception.ProjectOverLimit,
self.enforcer.enforce,
'project2', {'widgets': 10})
def test_calculate_usage(self):
# Make sure the usage calculator works with the fixture too
u = self.enforcer.calculate_usage('project2', ['widgets'])['widgets']
self.assertEqual(3, u.usage)
self.assertEqual(10, u.limit)
u = self.enforcer.calculate_usage('project1', ['widgets', 'sprockets'])
self.assertEqual(10, u['sprockets'].usage)
self.assertEqual(10, u['widgets'].usage)
# Since project1 has no project limits, make sure we get the
# registered limit values
self.assertEqual(50, u['sprockets'].limit)
self.assertEqual(100, u['widgets'].limit)
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