172 lines
5.4 KiB
Python
172 lines
5.4 KiB
Python
# Copyright 2013 OpenStack Foundation
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# Copyright 2013 Rackspace Hosting
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# Copyright 2013 Hewlett-Packard Development Company, L.P.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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from datetime import datetime
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from nose.tools import assert_equal
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from nose.tools import assert_true
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from oslo_utils import timeutils
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from proboscis import before_class
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from proboscis import test
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from troveclient.compat import exceptions
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from trove.common import cfg
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from trove.tests.fakes import limits as fake_limits
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from trove.tests.util import create_dbaas_client
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from trove.tests.util.users import Users
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CONF = cfg.CONF
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GROUP = "dbaas.api.limits"
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DEFAULT_RATE = CONF.http_get_rate
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DEFAULT_MAX_VOLUMES = CONF.max_volumes_per_tenant
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DEFAULT_MAX_INSTANCES = CONF.max_instances_per_tenant
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DEFAULT_MAX_BACKUPS = CONF.max_backups_per_tenant
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def ensure_limits_are_not_faked(func):
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def _cd(*args, **kwargs):
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fake_limits.ENABLED = True
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try:
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return func(*args, **kwargs)
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finally:
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fake_limits.ENABLED = False
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@test(groups=[GROUP])
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class Limits(object):
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@before_class
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def setUp(self):
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users = [
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{
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"auth_user": "rate_limit",
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"auth_key": "password",
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"tenant": "4000",
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"requirements": {
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"is_admin": False,
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"services": ["trove"]
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}
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},
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{
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"auth_user": "rate_limit_exceeded",
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"auth_key": "password",
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"tenant": "4050",
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"requirements": {
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"is_admin": False,
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"services": ["trove"]
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}
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}]
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self._users = Users(users)
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rate_user = self._get_user('rate_limit')
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self.rd_client = create_dbaas_client(rate_user)
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def _get_user(self, name):
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return self._users.find_user_by_name(name)
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def __is_available(self, next_available):
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dt_next = timeutils.parse_isotime(next_available)
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dt_now = datetime.now()
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return dt_next.time() < dt_now.time()
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def _get_limits_as_dict(self, limits):
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d = {}
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for limit in limits:
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d[l.verb] = limit
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return d
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@test
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@ensure_limits_are_not_faked
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def test_limits_index(self):
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"""Test_limits_index."""
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limits = self.rd_client.limits.list()
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d = self._get_limits_as_dict(limits)
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# remove the abs_limits from the rate limits
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abs_limits = d.pop("ABSOLUTE", None)
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assert_equal(abs_limits.verb, "ABSOLUTE")
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assert_equal(int(abs_limits.max_instances), DEFAULT_MAX_INSTANCES)
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assert_equal(int(abs_limits.max_backups), DEFAULT_MAX_BACKUPS)
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assert_equal(int(abs_limits.max_volumes), DEFAULT_MAX_VOLUMES)
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for k in d:
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assert_equal(d[k].verb, k)
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assert_equal(d[k].unit, "MINUTE")
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assert_true(int(d[k].remaining) <= DEFAULT_RATE)
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assert_true(d[k].nextAvailable is not None)
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@test
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@ensure_limits_are_not_faked
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def test_limits_get_remaining(self):
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"""Test_limits_get_remaining."""
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limits = ()
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for i in range(5):
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limits = self.rd_client.limits.list()
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d = self._get_limits_as_dict(limits)
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abs_limits = d["ABSOLUTE"]
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get = d["GET"]
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assert_equal(int(abs_limits.max_instances), DEFAULT_MAX_INSTANCES)
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assert_equal(int(abs_limits.max_backups), DEFAULT_MAX_BACKUPS)
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assert_equal(int(abs_limits.max_volumes), DEFAULT_MAX_VOLUMES)
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assert_equal(get.verb, "GET")
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assert_equal(get.unit, "MINUTE")
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assert_true(int(get.remaining) <= DEFAULT_RATE - 5)
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assert_true(get.nextAvailable is not None)
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@test
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@ensure_limits_are_not_faked
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def test_limits_exception(self):
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"""Test_limits_exception."""
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# use a different user to avoid throttling tests run out of order
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rate_user_exceeded = self._get_user('rate_limit_exceeded')
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rd_client = create_dbaas_client(rate_user_exceeded)
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get = None
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encountered = False
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for i in range(DEFAULT_RATE + 50):
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try:
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limits = rd_client.limits.list()
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d = self._get_limits_as_dict(limits)
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get = d["GET"]
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abs_limits = d["ABSOLUTE"]
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assert_equal(get.verb, "GET")
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assert_equal(get.unit, "MINUTE")
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assert_equal(int(abs_limits.max_instances),
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DEFAULT_MAX_INSTANCES)
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assert_equal(int(abs_limits.max_backups),
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DEFAULT_MAX_BACKUPS)
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assert_equal(int(abs_limits.max_volumes),
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DEFAULT_MAX_VOLUMES)
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except exceptions.OverLimit:
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encountered = True
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assert_true(encountered)
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assert_true(int(get.remaining) <= 50)
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