monasca-api/monasca_api/tests/test_healthchecks.py
Sean McGinnis 3182d90bbf Use unittest.mock instead of third party mock
Now that we no longer support py27, we can use the standard library
unittest.mock module instead of the third party mock lib.

Change-Id: Ib2843c62ff29b269139981f067ae6afcab624799
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
2020-04-23 12:21:44 +02:00

138 lines
6.3 KiB
Python

# Copyright 2017 FUJITSU LIMITED
#
# 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 falcon
from unittest import mock
from monasca_api import config
from monasca_api.healthcheck import base
from monasca_api import healthchecks
from monasca_api.tests import base as test_base
CONF = config.CONF
ENDPOINT = '/healthcheck'
class TestHealthChecks(test_base.BaseApiTestCase):
@classmethod
def tearDownClass(cls):
if hasattr(CONF, 'sql_engine'):
delattr(CONF, 'sql_engine')
def setUp(self):
super(TestHealthChecks, self).setUp()
self.resources = healthchecks.HealthChecks()
self.app.add_route(
ENDPOINT,
self.resources
)
@mock.patch('monasca_api.healthcheck.alarms_db_check.sql_repository.get_engine')
@mock.patch(
'monasca_api.healthcheck.metrics_db_check.MetricsDbCheck')
def test_should_return_200_for_head(self, metrics_db_check, _):
result = self.simulate_request(path=ENDPOINT, method='HEAD')
self.assertEqual(falcon.HTTP_NO_CONTENT, result.status)
@mock.patch('monasca_api.healthcheck.kafka_check.KafkaHealthCheck')
@mock.patch(
'monasca_api.healthcheck.alarms_db_check.AlarmsDbHealthCheck')
@mock.patch(
'monasca_api.healthcheck.metrics_db_check.MetricsDbCheck')
@mock.patch(
'monasca_api.healthcheck.alarms_db_check.sql_repository.SQLRepository')
def test_should_report_healthy_if_all_services_healthy(self, kafka_check,
alarms_db_check,
metrics_db_check,
_):
kafka_check.health_check.return_value = base.CheckResult(True, 'OK')
alarms_db_check.health_check.return_value = base.CheckResult(True,
'OK')
metrics_db_check.health_check.return_value = base.CheckResult(True,
'OK')
self.resources._kafka_check = kafka_check
self.resources._alarm_db_check = alarms_db_check
self.resources._metrics_db_check = metrics_db_check
response = self.simulate_request(path=ENDPOINT,
headers={
'Content-Type': 'application/json'
},
method='GET')
self.assertEqual(falcon.HTTP_OK, response.status)
response = response.json
self.assertIn('kafka', response)
self.assertIn('alarms_database', response)
self.assertIn('metrics_database', response)
self.assertEqual('OK', response.get('kafka'))
self.assertEqual('OK', response.get('alarms_database'))
self.assertEqual('OK', response.get('metrics_database'))
@mock.patch('monasca_api.healthcheck.kafka_check.KafkaHealthCheck')
@mock.patch(
'monasca_api.healthcheck.alarms_db_check.AlarmsDbHealthCheck')
@mock.patch(
'monasca_api.healthcheck.metrics_db_check.MetricsDbCheck')
@mock.patch(
'monasca_api.healthcheck.alarms_db_check.sql_repository.SQLRepository')
def test_should_report_not_healthy_if_one_service_not_healthy(self,
kafka_check,
alarms_db_check,
metrics_db_check,
_):
test_list = [
{'kafka': {'healthy': False, 'message': 'Unavailable'},
'alarms_db': {'healthy': True, 'message': 'OK'},
'netrics_db': {'healthy': True, 'message': 'OK'}
},
{'kafka': {'healthy': True, 'message': 'OK'},
'alarms_db': {'healthy': False, 'message': 'Connection Error'},
'netrics_db': {'healthy': True, 'message': 'OK'}
},
{'kafka': {'healthy': True, 'message': 'OK'},
'alarms_db': {'healthy': True, 'message': 'OK'},
'netrics_db': {'healthy': False, 'message': 'Error'}
},
]
for service in test_list:
kafka_check.health_check.return_value = base.CheckResult(service['kafka']['healthy'],
service['kafka']['message'])
alarms_db_check.health_check.return_value = base.CheckResult(
service['alarms_db']['healthy'], service['alarms_db']['message'])
metrics_db_check.health_check.return_value = base.CheckResult(
service['netrics_db']['healthy'], service['netrics_db']['message'])
self.resources._kafka_check = kafka_check
self.resources._alarm_db_check = alarms_db_check
self.resources._metrics_db_check = metrics_db_check
response = self.simulate_request(path=ENDPOINT,
headers={
'Content-Type': 'application/json'
},
method='GET')
self.assertEqual(falcon.HTTP_SERVICE_UNAVAILABLE,
response.status)
response = response.json
self.assertIn('kafka', response)
self.assertIn('alarms_database', response)
self.assertIn('metrics_database', response)
self.assertEqual(service['kafka']['message'], response.get('kafka'))
self.assertEqual(service['alarms_db']['message'], response.get('alarms_database'))
self.assertEqual(service['netrics_db']['message'], response.get('metrics_database'))