nova/nova/tests/unit/api/openstack/compute/test_used_limits.py

241 lines
8.4 KiB
Python

# Copyright 2012 OpenStack Foundation
# All Rights Reserved.
#
# 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.
import mock
from nova.api.openstack import api_version_request
from nova.api.openstack.compute import used_limits \
as used_limits_v21
from nova.api.openstack import wsgi
import nova.context
from nova import exception
from nova.policies import used_limits as ul_policies
from nova import quota
from nova import test
class FakeRequest(object):
def __init__(self, context, reserved=False):
self.environ = {'nova.context': context}
self.reserved = reserved
self.api_version_request = api_version_request.min_api_version()
self.GET = {'reserved': 1} if reserved else {}
class UsedLimitsTestCaseV21(test.NoDBTestCase):
used_limit_extension = "os_compute_api:os-used-limits"
include_server_group_quotas = True
def setUp(self):
"""Run before each test."""
super(UsedLimitsTestCaseV21, self).setUp()
self._set_up_controller()
self.fake_context = nova.context.RequestContext('fake', 'fake')
def _set_up_controller(self):
self.controller = used_limits_v21.UsedLimitsController()
patcher = self.mock_can = mock.patch('nova.context.RequestContext.can')
self.mock_can = patcher.start()
self.addCleanup(patcher.stop)
def _do_test_used_limits(self, reserved):
fake_req = FakeRequest(self.fake_context, reserved=reserved)
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
res = wsgi.ResponseObject(obj)
quota_map = {
'totalRAMUsed': 'ram',
'totalCoresUsed': 'cores',
'totalInstancesUsed': 'instances',
'totalFloatingIpsUsed': 'floating_ips',
'totalSecurityGroupsUsed': 'security_groups',
'totalServerGroupsUsed': 'server_groups',
}
limits = {}
expected_abs_limits = []
for display_name, q in quota_map.items():
limits[q] = {'limit': len(display_name),
'in_use': len(display_name) / 2,
'reserved': 0}
if (self.include_server_group_quotas or
display_name != 'totalServerGroupsUsed'):
expected_abs_limits.append(display_name)
def stub_get_project_quotas(context, project_id, usages=True):
return limits
self.stub_out('nova.quota.QUOTAS.get_project_quotas',
stub_get_project_quotas)
self.controller.index(fake_req, res)
abs_limits = res.obj['limits']['absolute']
for limit in expected_abs_limits:
value = abs_limits[limit]
r = limits[quota_map[limit]]['reserved'] if reserved else 0
self.assertEqual(limits[quota_map[limit]]['in_use'] + r, value)
def test_used_limits_basic(self):
self._do_test_used_limits(False)
def test_used_limits_with_reserved(self):
self._do_test_used_limits(True)
def test_admin_can_fetch_limits_for_a_given_tenant_id(self):
project_id = "123456"
user_id = "A1234"
tenant_id = 'abcd'
self.fake_context.project_id = project_id
self.fake_context.user_id = user_id
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
target = {
"project_id": tenant_id,
"user_id": user_id
}
fake_req = FakeRequest(self.fake_context)
fake_req.GET = {'tenant_id': tenant_id}
with mock.patch.object(quota.QUOTAS, 'get_project_quotas',
return_value={}) as mock_get_quotas:
res = wsgi.ResponseObject(obj)
self.controller.index(fake_req, res)
self.mock_can.assert_called_once_with(ul_policies.BASE_POLICY_NAME,
target)
mock_get_quotas.assert_called_once_with(self.fake_context,
tenant_id, usages=True)
def test_admin_can_fetch_used_limits_for_own_project(self):
project_id = "123456"
user_id = "A1234"
self.fake_context.project_id = project_id
self.fake_context.user_id = user_id
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
fake_req = FakeRequest(self.fake_context)
fake_req.GET = {}
with mock.patch.object(quota.QUOTAS, 'get_project_quotas',
return_value={}) as mock_get_quotas:
res = wsgi.ResponseObject(obj)
self.controller.index(fake_req, res)
mock_get_quotas.assert_called_once_with(self.fake_context,
project_id, usages=True)
def test_non_admin_cannot_fetch_used_limits_for_any_other_project(self):
project_id = "123456"
user_id = "A1234"
tenant_id = "abcd"
self.fake_context.project_id = project_id
self.fake_context.user_id = user_id
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
target = {
"project_id": tenant_id,
"user_id": user_id
}
fake_req = FakeRequest(self.fake_context)
fake_req.GET = {'tenant_id': tenant_id}
self.mock_can.side_effect = exception.PolicyNotAuthorized(
action=self.used_limit_extension)
res = wsgi.ResponseObject(obj)
self.assertRaises(exception.PolicyNotAuthorized,
self.controller.index,
fake_req, res)
self.mock_can.assert_called_once_with(ul_policies.BASE_POLICY_NAME,
target)
def test_used_limits_fetched_for_context_project_id(self):
project_id = "123456"
self.fake_context.project_id = project_id
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
fake_req = FakeRequest(self.fake_context)
with mock.patch.object(quota.QUOTAS, 'get_project_quotas',
return_value={}) as mock_get_quotas:
res = wsgi.ResponseObject(obj)
self.controller.index(fake_req, res)
mock_get_quotas.assert_called_once_with(self.fake_context,
project_id, usages=True)
def test_used_ram_added(self):
fake_req = FakeRequest(self.fake_context)
obj = {
"limits": {
"rate": [],
"absolute": {
"maxTotalRAMSize": 512,
},
},
}
res = wsgi.ResponseObject(obj)
def stub_get_project_quotas(context, project_id, usages=True):
return {'ram': {'limit': 512, 'in_use': 256}}
with mock.patch.object(quota.QUOTAS, 'get_project_quotas',
side_effect=stub_get_project_quotas
) as mock_get_quotas:
self.controller.index(fake_req, res)
abs_limits = res.obj['limits']['absolute']
self.assertIn('totalRAMUsed', abs_limits)
self.assertEqual(256, abs_limits['totalRAMUsed'])
self.assertEqual(1, mock_get_quotas.call_count)
def test_no_ram_quota(self):
fake_req = FakeRequest(self.fake_context)
obj = {
"limits": {
"rate": [],
"absolute": {},
},
}
res = wsgi.ResponseObject(obj)
with mock.patch.object(quota.QUOTAS, 'get_project_quotas',
return_value={}) as mock_get_quotas:
self.controller.index(fake_req, res)
abs_limits = res.obj['limits']['absolute']
self.assertNotIn('totalRAMUsed', abs_limits)
self.assertEqual(1, mock_get_quotas.call_count)