/usr/lib/python2.7/dist-packages/aodh/tests/unit/evaluator/test_event.py is in python-aodh 2.0.0-0ubuntu1.
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# Copyright 2015 NEC Corporation.
#
# 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 copy
import datetime
import six
import uuid
import mock
from oslo_utils import timeutils
from aodh import evaluator
from aodh.evaluator import event as event_evaluator
from aodh.storage import models
from aodh.tests import constants
from aodh.tests.unit.evaluator import base
class TestEventAlarmEvaluate(base.TestEvaluatorBase):
EVALUATOR = event_evaluator.EventAlarmEvaluator
@staticmethod
def _alarm(**kwargs):
alarm_id = kwargs.get('id') or str(uuid.uuid4())
return models.Alarm(name=kwargs.get('name', alarm_id),
type='event',
enabled=True,
alarm_id=alarm_id,
description='desc',
state=kwargs.get('state', 'insufficient data'),
severity='critical',
state_timestamp=constants.MIN_DATETIME,
timestamp=constants.MIN_DATETIME,
ok_actions=[],
insufficient_data_actions=[],
alarm_actions=[],
repeat_actions=kwargs.get('repeat', False),
user_id='user',
project_id=kwargs.get('project', ''),
time_constraints=[],
rule=dict(event_type=kwargs.get('event_type', '*'),
query=kwargs.get('query', [])))
@staticmethod
def _event(**kwargs):
return {'message_id': kwargs.get('id') or str(uuid.uuid4()),
'event_type': kwargs.get('event_type', 'type0'),
'traits': kwargs.get('traits', [])}
def _setup_alarm_storage(self, alarms):
self._stored_alarms = {a.alarm_id: copy.deepcopy(a) for a in alarms}
self._update_history = []
def get_alarms(**kwargs):
return (a for a in six.itervalues(self._stored_alarms))
def update_alarm(alarm):
self._stored_alarms[alarm.alarm_id] = copy.deepcopy(alarm)
self._update_history.append(dict(alarm_id=alarm.alarm_id,
state=alarm.state))
self.storage_conn.get_alarms.side_effect = get_alarms
self.storage_conn.update_alarm.side_effect = update_alarm
def _setup_alarm_notifier(self):
self._notification_history = []
def notify(alarm, previous, reason, data):
self._notification_history.append(dict(alarm_id=alarm.alarm_id,
state=alarm.state,
previous=previous,
reason=reason,
data=data))
self.notifier.notify.side_effect = notify
def _do_test_event_alarm(self, alarms, events,
expect_db_queries=None,
expect_alarm_states=None,
expect_alarm_updates=None,
expect_notifications=None):
self._setup_alarm_storage(alarms)
self._setup_alarm_notifier()
self.evaluator.evaluate_events(events)
if expect_db_queries is not None:
expected = [mock.call(enabled=True,
alarm_type='event',
project=p) for p in expect_db_queries]
self.assertEqual(expected,
self.storage_conn.get_alarms.call_args_list)
if expect_alarm_states is not None:
for alarm_id, state in six.iteritems(expect_alarm_states):
self.assertEqual(state, self._stored_alarms[alarm_id].state)
if expect_alarm_updates is not None:
self.assertEqual(len(expect_alarm_updates),
len(self._update_history))
for alarm, h in zip(expect_alarm_updates, self._update_history):
expected = dict(alarm_id=alarm.alarm_id,
state=evaluator.ALARM)
self.assertEqual(expected, h)
if expect_notifications is not None:
self.assertEqual(len(expect_notifications),
len(self._notification_history))
for n, h in zip(expect_notifications, self._notification_history):
alarm = n['alarm']
event = n['event']
previous = n.get('previous', evaluator.UNKNOWN)
reason = ('Event (message_id=%(e)s) hit the query of alarm '
'(id=%(a)s)' %
{'e': event['message_id'], 'a': alarm.alarm_id})
data = {'type': 'event', 'event': event}
expected = dict(alarm_id=alarm.alarm_id,
state=evaluator.ALARM,
previous=previous,
reason=reason,
data=data)
self.assertEqual(expected, h)
def test_fire_alarm_in_the_same_project_id(self):
alarm = self._alarm(project='project1')
event = self._event(traits=[['project_id', 1, 'project1']])
self._do_test_event_alarm(
[alarm], [event],
expect_db_queries=['project1'],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_fire_alarm_in_the_same_tenant_id(self):
alarm = self._alarm(project='project1')
event = self._event(traits=[['tenant_id', 1, 'project1']])
self._do_test_event_alarm(
[alarm], [event],
expect_db_queries=['project1'],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_fire_alarm_in_project_none(self):
alarm = self._alarm(project='')
event = self._event()
self._do_test_event_alarm(
[alarm], [event],
expect_db_queries=[''],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_continue_following_evaluation_after_exception(self):
alarms = [
self._alarm(id=1),
self._alarm(id=2),
]
event = self._event()
original = self.evaluator._fire_alarm
with mock.patch.object(event_evaluator.EventAlarmEvaluator,
'_fire_alarm') as _fire_alarm:
def _side_effect(*args, **kwargs):
_fire_alarm.side_effect = original
return Exception('boom')
_fire_alarm.side_effect = _side_effect
self._do_test_event_alarm(
alarms, [event],
expect_alarm_states={alarms[0].alarm_id: evaluator.UNKNOWN,
alarms[1].alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarms[1]],
expect_notifications=[dict(alarm=alarms[1], event=event)])
def test_skip_event_missing_event_type(self):
alarm = self._alarm()
event = {'message_id': str(uuid.uuid4()), 'traits': []}
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_skip_event_missing_message_id(self):
alarm = self._alarm()
event = {'event_type': 'type1', 'traits': []}
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_continue_alarming_when_repeat_actions_enabled(self):
alarm = self._alarm(repeat=True, state=evaluator.ALARM)
event = self._event()
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event,
previous=evaluator.ALARM)])
def test_do_not_continue_alarming_when_repeat_actions_disabled(self):
alarm = self._alarm(repeat=False, state=evaluator.ALARM)
event = self._event()
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[],
expect_notifications=[])
def test_skip_uninterested_event_type(self):
alarm = self._alarm(event_type='compute.instance.exists')
event = self._event(event_type='compute.instance.update')
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_fire_alarm_event_type_pattern_matched(self):
alarm = self._alarm(event_type='compute.instance.*')
event = self._event(event_type='compute.instance.update')
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_skip_event_type_pattern_unmatched(self):
alarm = self._alarm(event_type='compute.instance.*')
event = self._event(event_type='dummy.compute.instance')
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_fire_alarm_query_matched_string(self):
alarm = self._alarm(query=[dict(field="traits.state",
value="stopped",
op="eq")])
event = self._event(traits=[['state', 1, 'stopped']])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_skip_query_unmatched_string(self):
alarm = self._alarm(query=[dict(field="traits.state",
value="stopped",
op="eq")])
event = self._event(traits=[['state', 1, 'active']])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_fire_alarm_query_matched_integer(self):
alarm = self._alarm(query=[dict(field="traits.instance_type_id",
type="integer",
value="5",
op="eq")])
event = self._event(traits=[['instance_type_id', 2, 5]])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_skip_query_unmatched_integer(self):
alarm = self._alarm(query=[dict(field="traits.instance_type_id",
type="integer",
value="5",
op="eq")])
event = self._event(traits=[['instance_type_id', 2, 6]])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_fire_alarm_query_matched_float(self):
alarm = self._alarm(query=[dict(field="traits.io_read_kbs",
type="float",
value="123.456",
op="eq")])
event = self._event(traits=[['io_read_kbs', 3, 123.456]])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_skip_query_unmatched_float(self):
alarm = self._alarm(query=[dict(field="traits.io_read_kbs",
type="float",
value="123.456",
op="eq")])
event = self._event(traits=[['io_read_kbs', 3, 456.123]])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_fire_alarm_query_matched_datetime(self):
alarm = self._alarm(query=[dict(field="traits.created_at",
type="datetime",
value="2015-09-01T18:52:27.214309",
op="eq")])
event = self._event(traits=[['created_at', 4,
'2015-09-01T18:52:27.214309']])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=event)])
def test_skip_query_unmatched_datetime(self):
alarm = self._alarm(query=[dict(field="traits.created_at",
type="datetime",
value="2015-09-01T18:52:27.214309",
op="eq")])
event = self._event(traits=[['created_at', 4,
'2015-09-02T18:52:27.214309']])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_skip_alarm_due_to_uncompareable_trait(self):
alarm = self._alarm(query=[dict(field="traits.created_at",
type="datetime",
value="2015-09-01T18:52:27.214309",
op="eq")])
event = self._event(traits=[['created_at', 3, 123.456]])
self._do_test_event_alarm(
[alarm], [event],
expect_alarm_states={alarm.alarm_id: evaluator.UNKNOWN},
expect_alarm_updates=[],
expect_notifications=[])
def test_event_alarm_cache_hit(self):
alarm = self._alarm(project='project2', event_type='none')
events = [
self._event(traits=[['project_id', 1, 'project2']]),
self._event(traits=[['project_id', 1, 'project2']]),
]
self._do_test_event_alarm([alarm], events,
expect_db_queries=['project2'])
def test_event_alarm_cache_updated_after_fired(self):
alarm = self._alarm(project='project2', event_type='type1',
repeat=False)
events = [
self._event(event_type='type1',
traits=[['project_id', 1, 'project2']]),
self._event(event_type='type1',
traits=[['project_id', 1, 'project2']]),
]
self._do_test_event_alarm(
[alarm], events,
expect_db_queries=['project2'],
expect_alarm_states={alarm.alarm_id: evaluator.ALARM},
expect_alarm_updates=[alarm],
expect_notifications=[dict(alarm=alarm, event=events[0])])
def test_event_alarm_caching_disabled(self):
alarm = self._alarm(project='project2', event_type='none')
events = [
self._event(traits=[['project_id', 1, 'project2']]),
self._event(traits=[['project_id', 1, 'project2']]),
]
self.evaluator.conf.event_alarm_cache_ttl = 0
self._do_test_event_alarm([alarm], events,
expect_db_queries=['project2', 'project2'])
@mock.patch.object(timeutils, 'utcnow')
def test_event_alarm_cache_expired(self, mock_utcnow):
alarm = self._alarm(project='project2', event_type='none')
events = [
self._event(traits=[['project_id', 1, 'project2']]),
self._event(traits=[['project_id', 1, 'project2']]),
]
mock_utcnow.side_effect = [
datetime.datetime(2015, 1, 1, 0, 0, 0),
datetime.datetime(2015, 1, 1, 1, 0, 0),
datetime.datetime(2015, 1, 1, 1, 1, 0),
]
self._do_test_event_alarm([alarm], events,
expect_db_queries=['project2', 'project2'])
def test_event_alarm_cache_miss(self):
events = [
self._event(traits=[['project_id', 1, 'project2']]),
self._event(traits=[['project_id', 1, 'project3']]),
]
self._do_test_event_alarm([], events,
expect_db_queries=['project2', 'project3'])
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