oslo.middleware/oslo_middleware/tests/test_healthcheck.py
Sean McGinnis 8b2aaa3f6c
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: I15fc9e39d69f817fb5db8ce7111d0397a25c94b0
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
2020-03-31 14:32:21 -05:00

203 lines
8.4 KiB
Python

# Copyright (c) 2013 NEC Corporation
# All Rights Reserved.
#
# 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 threading
import time
from unittest import mock
from oslo_config import fixture as config
from oslo_serialization import jsonutils
from oslotest import base as test_base
import requests
import webob.dec
import webob.exc
from oslo_middleware import healthcheck
from oslo_middleware.healthcheck import __main__
class HealthcheckMainTests(test_base.BaseTestCase):
def test_startup_response(self):
server = __main__.create_server(0)
th = threading.Thread(target=server.serve_forever)
th.start()
self.addCleanup(server.shutdown)
while True:
try:
# Connecting on 0.0.0.0 is not allowed on windows
# The operating system will return WSAEADDRNOTAVAIL which
# in turn will throw a requests.ConnectionError
r = requests.get("http://127.0.0.1:%s" % (
server.server_address[1]))
except requests.ConnectionError:
# Server hasn't started up yet, try again in a few.
time.sleep(1)
else:
self.assertEqual(200, r.status_code)
break
class HealthcheckTests(test_base.BaseTestCase):
def setUp(self):
super(HealthcheckTests, self).setUp()
self.useFixture(config.Config())
@staticmethod
@webob.dec.wsgify
def application(req):
return 'Hello, World!!!'
def _do_test_request(self, conf={}, path='/healthcheck',
accept='text/plain', method='GET',
server_port=80):
self.app = healthcheck.Healthcheck(self.application, conf)
req = webob.Request.blank(path, accept=accept, method=method)
req.server_port = server_port
res = req.get_response(self.app)
return res
def _do_test(self, conf={}, path='/healthcheck',
expected_code=webob.exc.HTTPOk.code,
expected_body=b'', accept='text/plain',
method='GET', server_port=80):
res = self._do_test_request(conf=conf, path=path,
accept=accept, method=method,
server_port=server_port)
self.assertEqual(expected_code, res.status_int)
self.assertEqual(expected_body, res.body)
def test_default_path_match(self):
self._do_test()
def test_default_path_not_match(self):
self._do_test(path='/toto', expected_body=b'Hello, World!!!')
def test_configured_path_match(self):
conf = {'path': '/hidden_healthcheck'}
self._do_test(conf, path='/hidden_healthcheck')
def test_configured_path_not_match(self):
conf = {'path': '/hidden_healthcheck'}
self._do_test(conf, path='/toto', expected_body=b'Hello, World!!!')
@mock.patch('oslo_middleware.healthcheck.disable_by_file.LOG')
def test_disablefile_unconfigured(self, fake_log):
fake_warn = fake_log.warning
conf = {'backends': 'disable_by_file'}
self._do_test(conf, expected_body=b'OK')
self.assertIn('disable_by_file', self.app._backends.names())
fake_warn.assert_called_once_with(
'DisableByFile healthcheck middleware '
'enabled without disable_by_file_path '
'set'
)
def test_disablefile_enabled(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar'}
self._do_test(conf, expected_body=b'OK')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_enabled_head(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar'}
self._do_test(conf, expected_body=b'', method='HEAD',
expected_code=webob.exc.HTTPNoContent.code)
def test_disablefile_enabled_html_detailed(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar', 'detailed': True}
res = self._do_test_request(conf, accept="text/html")
self.assertIn(b'Result of 1 checks:', res.body)
self.assertIn(b'<TD>OK</TD>', res.body)
self.assertEqual(webob.exc.HTTPOk.code, res.status_int)
def test_disablefile_disabled(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_disabled_head(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'', method='HEAD')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_disabled_html_detailed(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename, 'detailed': True}
res = self._do_test_request(conf, accept="text/html")
self.assertIn(b'<TD>DISABLED BY FILE</TD>', res.body)
self.assertEqual(webob.exc.HTTPServiceUnavailable.code,
res.status_int)
def test_two_backends(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file,disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE\nDISABLED BY FILE')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disable_by_port_file(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "80:%s" % filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_no_disable_by_port_file(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "8000:%s" % filename}
self._do_test(conf,
expected_code=webob.exc.HTTPOk.code,
expected_body=b'OK')
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_disable_by_port_many_files(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
filename2 = self.create_tempfiles([('test2', 'foobar2')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "80:%s,81:%s" % (filename, filename2)}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE',
server_port=81)
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_json_response(self):
expected_body = jsonutils.dumps({'detailed': False, 'reasons': []},
indent=4,
sort_keys=True).encode('utf-8')
self._do_test(expected_body=expected_body,
accept='application/json')