132 lines
6.0 KiB
Python
132 lines
6.0 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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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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"""Tests the AlarmProcessor"""
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import collections
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import json
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import mock
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import multiprocessing
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import Queue
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import time
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import unittest
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from monasca_notification.notification import Notification
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from monasca_notification.processors import alarm_processor
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alarm_tuple = collections.namedtuple('alarm_tuple', ['offset', 'message'])
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message_tuple = collections.namedtuple('message_tuple', ['value'])
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class TestAlarmProcessor(unittest.TestCase):
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def setUp(self):
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self.alarm_queue = multiprocessing.Queue(10)
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self.notification_queue = multiprocessing.Queue(10)
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self.finished_queue = multiprocessing.Queue(10)
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self.log_queue = multiprocessing.Queue(10)
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def _create_raw_alarm(self, partition, offset, message):
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"""Create a raw alarm, with the given message dictionary.
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"""
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json_msg = json.dumps({'alarm-transitioned': message})
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msg_tuple = message_tuple(json_msg)
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return [partition, alarm_tuple(offset, msg_tuple)]
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@mock.patch('MySQLdb.connect')
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@mock.patch('monasca_notification.processors.alarm_processor.log')
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def _run_alarm_processor(self, queue, sql_response, mock_log, mock_mysql):
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"""Runs a mocked alarm processor reading from queue while running, returns (queue_message, log_message)
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"""
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# Since the log runs in another thread I can mock it directly, instead change the methods to put to a queue
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mock_log.warn = self.log_queue.put
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mock_log.error = self.log_queue.put
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# Setup the sql response
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if sql_response is not None:
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mock_mysql.return_value = mock_mysql
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mock_mysql.cursor.return_value = mock_mysql
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mock_mysql.__iter__.return_value = sql_response
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processor = alarm_processor.AlarmProcessor(self.alarm_queue, self.notification_queue,
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self.finished_queue, 600, 'mysql_host', 'mysql_user',
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'mysql_passwd', 'dbname')
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p_thread = multiprocessing.Process(target=processor.run)
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p_thread.start()
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try:
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queue_msg = queue.get(timeout=2)
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except Queue.Empty:
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queue_msg = None
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p_thread.terminate()
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try:
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log_msg = self.log_queue.get(timeout=1)
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except Queue.Empty:
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log_msg = None
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return queue_msg, log_msg
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def test_invalid_alarm(self):
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"""Invalid Alarms, should log and error and push to the finished queue."""
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self.alarm_queue.put(self._create_raw_alarm(0, 1, {'invalid': 'invalid_alarm'}))
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finished, log_msg = self._run_alarm_processor(self.finished_queue, None)
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self.assertTrue(finished == (0, 1))
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self.assertTrue(log_msg.startswith('Invalid Alarm format'))
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def test_old_timestamp(self):
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"""Should cause the alarm_ttl to fire log a warning and push to finished queue."""
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alarm_dict = {"tenantId": "0", "alarmId": "0", "alarmName": "test Alarm", "oldState": "OK", "newState": "ALARM",
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"stateChangeReason": "I am alarming!", "timestamp": 1375346830, "actionsEnabled": 1}
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self.alarm_queue.put(self._create_raw_alarm(0, 2, alarm_dict))
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finished, log_msg = self._run_alarm_processor(self.finished_queue, None)
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self.assertTrue(finished == (0, 2))
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self.assertTrue(log_msg.startswith('Received alarm older than the ttl'))
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def test_no_notifications(self):
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"""Test an alarm with no defined notifications
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"""
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alarm_dict = {"tenantId": "0", "alarmId": "0", "alarmName": "test Alarm", "oldState": "OK", "newState": "ALARM",
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"stateChangeReason": "I am alarming!", "timestamp": time.time(), "actionsEnabled": 1}
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self.alarm_queue.put(self._create_raw_alarm(0, 3, alarm_dict))
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finished, log_msg = self._run_alarm_processor(self.finished_queue, None)
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self.assertTrue(finished == (0, 3))
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def test_valid_notification(self):
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"""Test a valid notification, being put onto the notification_queue
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"""
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alarm_dict = {"tenantId": "0", "alarmId": "0", "alarmName": "test Alarm", "oldState": "OK", "newState": "ALARM",
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"stateChangeReason": "I am alarming!", "timestamp": time.time(), "actionsEnabled": 1}
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self.alarm_queue.put(self._create_raw_alarm(0, 4, alarm_dict))
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sql_response = [['test notification', 'EMAIL', 'me@here.com']]
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finished, log_msg = self._run_alarm_processor(self.notification_queue, sql_response)
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test_notification = Notification('email', 0, 4, 'test notification', 'me@here.com', alarm_dict)
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self.assertTrue(finished == [test_notification])
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def test_two_valid_notifications(self):
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alarm_dict = {"tenantId": "0", "alarmId": "0", "alarmName": "test Alarm", "oldState": "OK", "newState": "ALARM",
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"stateChangeReason": "I am alarming!", "timestamp": time.time(), "actionsEnabled": 1}
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self.alarm_queue.put(self._create_raw_alarm(0, 5, alarm_dict))
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sql_response = [['test notification', 'EMAIL', 'me@here.com'], ['test notification2', 'EMAIL', 'me@here.com']]
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finished, log_msg = self._run_alarm_processor(self.notification_queue, sql_response)
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test_notification = Notification('email', 0, 5, 'test notification', 'me@here.com', alarm_dict)
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test_notification2 = Notification('email', 0, 5, 'test notification2', 'me@here.com', alarm_dict)
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self.assertTrue(finished == [test_notification, test_notification2])
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