1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
# ============LICENSE_START===================================================
# Copyright (C) 2019-2020 Nordix Foundation.
# ============================================================================
# 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.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=====================================================
import json
import unittest
from os import environ
from os import path
from unittest.mock import patch
import requests
import responses
from tenacity import wait_none
from pmsh_service.mod.config_handler import ConfigHandler
class ConfigHandlerTest(unittest.TestCase):
def setUp(self):
self.env_vars = {'CONFIG_BINDING_SERVICE_SERVICE_HOST': 'cbs_hostname',
'CONFIG_BINDING_SERVICE_SERVICE_PORT': '10000',
'HOSTNAME': 'hostname'}
for key, value in self.env_vars.items():
environ[key] = value
self.cbs_url = 'http://cbs_hostname:10000/service_component_all/hostname'
self.expected_config = self._get_expected_config()
def test_missing_environment_variable(self):
for key, value in self.env_vars.items():
with self.assertRaises(KeyError):
environ.pop(key)
test_value = globals()[value]
test_value()
environ[key] = value
@responses.activate
def test_get_config_success(self):
responses.add(responses.GET, self.cbs_url, json=json.dumps(self.expected_config),
status=200)
config_handler = ConfigHandler()
config_handler.get_config.retry.wait = wait_none()
self.assertEqual(self.expected_config, config_handler.get_config())
def test_get_config_already_exists(self):
config_handler = ConfigHandler()
expected_config = self._get_expected_config()
config_handler._config = expected_config
with patch.object(requests, 'get') as mock_get_request:
actual_config = config_handler.get_config()
self.assertEqual(0, mock_get_request.call_count)
self.assertEqual(expected_config, actual_config)
@responses.activate
def test_get_config_error(self):
responses.add(responses.GET, self.cbs_url, status=404)
config_handler = ConfigHandler()
config_handler.get_config.retry.wait = wait_none()
with self.assertRaises(Exception):
config_handler.get_config()
@responses.activate
def test_get_config_max_retries_error(self):
retry_limit = 5
config_handler = ConfigHandler()
config_handler.get_config.retry.wait = wait_none()
for __ in range(retry_limit):
responses.add(responses.GET, self.cbs_url, status=500)
with self.assertRaises(Exception):
config_handler.get_config()
self.assertEqual(retry_limit, len(responses.calls))
@responses.activate
def test_get_config_less_than_5_retries_success(self):
retry_attempts = 4
responses.add(responses.GET, self.cbs_url, status=500)
responses.add(responses.GET, self.cbs_url, status=400)
responses.add(responses.GET, self.cbs_url, status=300)
responses.add(responses.GET, self.cbs_url, json=json.dumps(self.expected_config),
status=200)
config_handler = ConfigHandler()
config_handler.get_config.retry.wait = wait_none()
config_handler.get_config()
self.assertEqual(retry_attempts, len(responses.calls))
@staticmethod
def _get_expected_config():
with open(path.join(path.dirname(__file__), 'expected_config.json'))as json_file:
return json.load(json_file)
|
