310 lines
13 KiB
Python
310 lines
13 KiB
Python
# Copyright (c) 2014 OpenStack Foundation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from neutron_lib import context
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from neutron_lib import exceptions as lib_exc
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from neutron.common import exceptions
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from neutron.db import db_base_plugin_v2 as base_plugin
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from neutron.db.quota import api as quota_api
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from neutron.db.quota import driver
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from neutron.objects import quota as quota_obj
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from neutron.quota import resource
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from neutron.tests import base
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from neutron.tests.unit import quota as test_quota
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from neutron.tests.unit import testlib_api
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DB_PLUGIN_KLASS = 'neutron.db.db_base_plugin_v2.NeutronDbPluginV2'
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def _count_resource(context, resource, tenant_id):
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"""A fake counting function to determine current used counts"""
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if resource[-1] == 's':
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resource = resource[:-1]
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result = quota_obj.QuotaUsage.get_object_dirty_protected(
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context, resource=resource)
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return 0 if not result else result.in_use
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class FakePlugin(base_plugin.NeutronDbPluginV2, driver.DbQuotaDriver):
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"""A fake plugin class containing all DB methods."""
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class TestResource(object):
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"""Describe a test resource for quota checking."""
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def __init__(self, name, default, fake_count=0):
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self.name = name
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self.quota = default
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self.fake_count = fake_count
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@property
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def default(self):
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return self.quota
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def count(self, *args, **kwargs):
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return self.fake_count
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class TestTrackedResource(resource.TrackedResource):
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"""Describes a test tracked resource for detailed quota checking"""
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def __init__(self, name, model_class, flag=None,
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plural_name=None):
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super(TestTrackedResource, self).__init__(
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name, model_class, flag=flag, plural_name=None)
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@property
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def default(self):
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return self.flag
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class TestCountableResource(resource.CountableResource):
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"""Describes a test countable resource for detailed quota checking"""
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def __init__(self, name, count, flag=-1, plural_name=None):
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super(TestCountableResource, self).__init__(
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name, count, flag=flag, plural_name=None)
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@property
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def default(self):
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return self.flag
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PROJECT = 'prj_test'
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RESOURCE = 'res_test'
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ALT_RESOURCE = 'res_test_meh'
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class TestDbQuotaDriver(testlib_api.SqlTestCase,
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base.BaseTestCase):
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def setUp(self):
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super(TestDbQuotaDriver, self).setUp()
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self.plugin = FakePlugin()
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self.context = context.get_admin_context()
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self.setup_coreplugin(core_plugin=DB_PLUGIN_KLASS)
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def test_create_quota_limit(self):
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defaults = {RESOURCE: TestResource(RESOURCE, 4)}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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quotas = self.plugin.get_tenant_quotas(self.context, defaults, PROJECT)
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self.assertEqual(2, quotas[RESOURCE])
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def test_update_quota_limit(self):
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defaults = {RESOURCE: TestResource(RESOURCE, 4)}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 3)
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quotas = self.plugin.get_tenant_quotas(self.context, defaults, PROJECT)
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self.assertEqual(3, quotas[RESOURCE])
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def test_delete_tenant_quota_restores_default_limit(self):
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defaults = {RESOURCE: TestResource(RESOURCE, 4)}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.plugin.delete_tenant_quota(self.context, PROJECT)
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quotas = self.plugin.get_tenant_quotas(self.context, defaults, PROJECT)
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self.assertEqual(4, quotas[RESOURCE])
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def test_get_default_quotas(self):
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defaults = {RESOURCE: TestResource(RESOURCE, 4)}
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user_ctx = context.Context(user_id=PROJECT, tenant_id=PROJECT)
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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quotas = self.plugin.get_default_quotas(user_ctx, defaults, PROJECT)
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self.assertEqual(4, quotas[RESOURCE])
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def test_get_tenant_quotas(self):
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user_ctx = context.Context(user_id=PROJECT, tenant_id=PROJECT)
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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quotas = self.plugin.get_tenant_quotas(user_ctx, {}, PROJECT)
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self.assertEqual(2, quotas[RESOURCE])
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def test_get_tenant_quotas_different_tenant(self):
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user_ctx = context.Context(user_id=PROJECT,
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tenant_id='another_project')
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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# It is appropriate to use assertFalse here as the expected return
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# value is an empty dict (the defaults passed in the statement below
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# after the request context)
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self.assertFalse(self.plugin.get_tenant_quotas(user_ctx, {}, PROJECT))
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def test_get_all_quotas(self):
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project_1 = 'prj_test_1'
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project_2 = 'prj_test_2'
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resource_1 = 'res_test_1'
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resource_2 = 'res_test_2'
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resources = {resource_1: TestResource(resource_1, 3),
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resource_2: TestResource(resource_2, 5)}
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self.plugin.update_quota_limit(self.context, project_1, resource_1, 7)
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self.plugin.update_quota_limit(self.context, project_2, resource_2, 9)
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quotas = self.plugin.get_all_quotas(self.context, resources)
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# Expect two tenants' quotas
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self.assertEqual(2, len(quotas))
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# But not quotas for the same tenant twice
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self.assertNotEqual(quotas[0]['tenant_id'], quotas[1]['tenant_id'])
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# Check the expected limits. The quotas can be in any order.
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for quota in quotas:
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project = quota['tenant_id']
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self.assertIn(project, (project_1, project_2))
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if project == project_1:
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expected_limit_r1 = 7
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expected_limit_r2 = 5
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if project == project_2:
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expected_limit_r1 = 3
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expected_limit_r2 = 9
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self.assertEqual(expected_limit_r1, quota[resource_1])
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self.assertEqual(expected_limit_r2, quota[resource_2])
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def test_limit_check(self):
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resources = {RESOURCE: TestResource(RESOURCE, 2)}
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values = {RESOURCE: 1}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.plugin.limit_check(self.context, PROJECT, resources, values)
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def test_limit_check_over_quota(self):
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resources = {RESOURCE: TestResource(RESOURCE, 2)}
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values = {RESOURCE: 3}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.assertRaises(lib_exc.OverQuota, self.plugin.limit_check,
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context.get_admin_context(), PROJECT, resources,
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values)
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def test_limit_check_equals_to_quota(self):
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resources = {RESOURCE: TestResource(RESOURCE, 2)}
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values = {RESOURCE: 2}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.plugin.limit_check(self.context, PROJECT, resources, values)
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def test_limit_check_value_lower_than_zero(self):
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resources = {RESOURCE: TestResource(RESOURCE, 2)}
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values = {RESOURCE: -1}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.assertRaises(exceptions.InvalidQuotaValue,
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self.plugin.limit_check, context.get_admin_context(),
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PROJECT, resources, values)
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def _test_make_reservation_success(self, quota_driver,
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resource_name, deltas):
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resources = {resource_name: TestResource(resource_name, 2)}
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self.plugin.update_quota_limit(self.context, PROJECT, resource_name, 2)
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reservation = quota_driver.make_reservation(
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self.context,
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self.context.tenant_id,
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resources,
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deltas,
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self.plugin)
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self.assertIn(resource_name, reservation.deltas)
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self.assertEqual(deltas[resource_name],
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reservation.deltas[resource_name])
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self.assertEqual(self.context.tenant_id,
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reservation.tenant_id)
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def test_make_reservation_single_resource(self):
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quota_driver = driver.DbQuotaDriver()
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self._test_make_reservation_success(
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quota_driver, RESOURCE, {RESOURCE: 1})
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def test_make_reservation_fill_quota(self):
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quota_driver = driver.DbQuotaDriver()
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self._test_make_reservation_success(
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quota_driver, RESOURCE, {RESOURCE: 2})
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def test_make_reservation_multiple_resources(self):
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quota_driver = driver.DbQuotaDriver()
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resources = {RESOURCE: TestResource(RESOURCE, 2),
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ALT_RESOURCE: TestResource(ALT_RESOURCE, 2)}
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deltas = {RESOURCE: 1, ALT_RESOURCE: 2}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.plugin.update_quota_limit(self.context, PROJECT, ALT_RESOURCE, 2)
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reservation = quota_driver.make_reservation(
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self.context,
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self.context.tenant_id,
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resources,
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deltas,
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self.plugin)
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self.assertIn(RESOURCE, reservation.deltas)
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self.assertIn(ALT_RESOURCE, reservation.deltas)
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self.assertEqual(1, reservation.deltas[RESOURCE])
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self.assertEqual(2, reservation.deltas[ALT_RESOURCE])
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self.assertEqual(self.context.tenant_id,
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reservation.tenant_id)
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def test_make_reservation_over_quota_fails(self):
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quota_driver = driver.DbQuotaDriver()
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resources = {RESOURCE: TestResource(RESOURCE, 2,
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fake_count=2)}
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deltas = {RESOURCE: 1}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 2)
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self.assertRaises(lib_exc.OverQuota,
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quota_driver.make_reservation,
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self.context,
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self.context.tenant_id,
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resources,
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deltas,
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self.plugin)
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def test_get_detailed_tenant_quotas_resource(self):
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res = {RESOURCE: TestTrackedResource(RESOURCE, test_quota.MehModel)}
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self.plugin.update_quota_limit(self.context, PROJECT, RESOURCE, 6)
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quota_driver = driver.DbQuotaDriver()
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quota_driver.make_reservation(self.context, PROJECT, res,
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{RESOURCE: 1}, self.plugin)
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quota_api.set_quota_usage(self.context, RESOURCE, PROJECT, 2)
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detailed_quota = self.plugin.get_detailed_tenant_quotas(self.context,
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res, PROJECT)
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self.assertEqual(6, detailed_quota[RESOURCE]['limit'])
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self.assertEqual(2, detailed_quota[RESOURCE]['used'])
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self.assertEqual(1, detailed_quota[RESOURCE]['reserved'])
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def test_get_detailed_tenant_quotas_multiple_resource(self):
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project_1 = 'prj_test_1'
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resource_1 = 'res_test_1'
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resource_2 = 'res_test_2'
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resources = {resource_1:
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TestTrackedResource(resource_1, test_quota.MehModel),
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resource_2:
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TestCountableResource(resource_2, _count_resource)}
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self.plugin.update_quota_limit(self.context, project_1, resource_1, 6)
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self.plugin.update_quota_limit(self.context, project_1, resource_2, 9)
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quota_driver = driver.DbQuotaDriver()
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quota_driver.make_reservation(self.context, project_1,
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resources,
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{resource_1: 1, resource_2: 7},
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self.plugin)
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quota_api.set_quota_usage(self.context, resource_1, project_1, 2)
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quota_api.set_quota_usage(self.context, resource_2, project_1, 3)
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detailed_quota = self.plugin.get_detailed_tenant_quotas(self.context,
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resources,
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project_1)
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self.assertEqual(6, detailed_quota[resource_1]['limit'])
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self.assertEqual(1, detailed_quota[resource_1]['reserved'])
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self.assertEqual(2, detailed_quota[resource_1]['used'])
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self.assertEqual(9, detailed_quota[resource_2]['limit'])
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self.assertEqual(7, detailed_quota[resource_2]['reserved'])
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self.assertEqual(3, detailed_quota[resource_2]['used'])
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