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# Copyright 2018 Rackspace, US Inc.
#
# 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 socket
from unittest import mock
from octavia_lib.api.drivers import driver_lib
from octavia_lib.api.drivers import exceptions as driver_exceptions
from octavia_lib.common import constants
from octavia_lib.tests.unit import base
class TestDriverLib(base.TestCase):
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary.'
'_check_for_socket_ready')
def setUp(self, mock_check_ready):
self.driver_lib = driver_lib.DriverLibrary()
super().setUp()
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary.'
'_check_for_socket_ready.retry.sleep')
@mock.patch('os.path.exists')
def test_check_for_socket_ready(self, mock_path_exists, mock_sleep):
mock_path_exists.return_value = True
# should not raise an exception
self.driver_lib._check_for_socket_ready('bogus')
mock_path_exists.return_value = False
self.assertRaises(driver_exceptions.DriverAgentNotFound,
self.driver_lib._check_for_socket_ready,
'bogus')
@mock.patch('builtins.memoryview')
def test_recv(self, mock_memoryview):
mock_socket = mock.MagicMock()
mock_socket.recv.side_effect = [b'1', b'\n', b'2', b'3', b'\n']
mock_socket.recv_into.return_value = 1
mv_mock = mock.MagicMock()
mock_memoryview.return_value = mv_mock
mv_mock.tobytes.return_value = b'"test data"'
response = self.driver_lib._recv(mock_socket)
calls = [mock.call(1), mock.call(1)]
mock_socket.recv.assert_has_calls(calls)
mock_socket.recv_into.assert_called_once_with(
mv_mock.__getitem__(), 1)
self.assertEqual('test data', response)
# Test size recv timeout
with mock.patch('octavia_lib.api.drivers.driver_lib.'
'time') as mock_time:
mock_time.time.side_effect = [0, 1000, 0, 0, 0, 0, 1000]
self.assertRaises(driver_exceptions.DriverAgentTimeout,
self.driver_lib._recv, mock_socket)
# Test payload recv timeout
self.assertRaises(driver_exceptions.DriverAgentTimeout,
self.driver_lib._recv, mock_socket)
@mock.patch('builtins.memoryview')
def test_recv_with_timeout(self, mock_memoryview):
mock_socket = mock.MagicMock()
mock_socket.recv.side_effect = [socket.timeout, b'1', b'\n', b'2',
b'3', b'\n']
mock_socket.recv_into.return_value = 1
mv_mock = mock.MagicMock()
mock_memoryview.return_value = mv_mock
mv_mock.tobytes.return_value = b'"test data"'
response = self.driver_lib._recv(mock_socket)
calls = [mock.call(1), mock.call(1)]
mock_socket.recv.assert_has_calls(calls)
mock_socket.recv_into.assert_called_once_with(
mv_mock.__getitem__(), 1)
self.assertEqual('test data', response)
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary._recv')
def test_send(self, mock_recv):
mock_socket = mock.MagicMock()
mock_recv.return_value = 'fake_response'
with mock.patch('socket.socket') as socket_mock:
socket_mock.return_value = mock_socket
response = self.driver_lib._send('fake_path', 'test data')
mock_socket.connect.assert_called_once_with('fake_path')
mock_socket.send.assert_called_once_with(b'11\n')
mock_socket.sendall.assert_called_once_with(b'"test data"')
mock_socket.close.assert_called_once()
self.assertEqual(mock_recv.return_value, response)
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary._send')
def test_update_loadbalancer_status(self, mock_send):
error_dict = {'status_code': 500, 'fault_string': 'boom',
'status_object': 'balloon', 'status_object_id': '1',
'status_record': 'tunes'}
mock_send.side_effect = [{'status_code': 200}, Exception('boom'),
error_dict]
# Happy path
self.driver_lib.update_loadbalancer_status('fake_status')
mock_send.assert_called_once_with('/var/run/octavia/status.sock',
'fake_status')
# Test general exception
self.assertRaises(driver_exceptions.UpdateStatusError,
self.driver_lib.update_loadbalancer_status,
'fake_status')
# Test bad status code returned
self.assertRaises(driver_exceptions.UpdateStatusError,
self.driver_lib.update_loadbalancer_status,
'fake_status')
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary._send')
def test_update_listener_statistics(self, mock_send):
error_dict = {'status_code': 500, 'fault_string': 'boom',
'status_object': 'balloon', 'status_object_id': '1',
'status_record': 'tunes'}
mock_send.side_effect = [{'status_code': 200}, Exception('boom'),
error_dict]
# Happy path
self.driver_lib.update_listener_statistics('fake_stats')
mock_send.assert_called_once_with('/var/run/octavia/stats.sock',
'fake_stats')
# Test general exception
self.assertRaises(driver_exceptions.UpdateStatisticsError,
self.driver_lib.update_listener_statistics,
'fake_stats')
# Test bad status code returned
self.assertRaises(driver_exceptions.UpdateStatisticsError,
self.driver_lib.update_listener_statistics,
'fake_stats')
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary._send')
def test_get_resource(self, mock_send):
fake_resource = 'fake resource'
fake_id = 'fake id'
mock_send.side_effect = ['some result',
driver_exceptions.DriverAgentTimeout,
Exception('boom')]
result = self.driver_lib._get_resource(fake_resource, fake_id)
data = {constants.OBJECT: fake_resource, constants.ID: fake_id}
mock_send.assert_called_once_with('/var/run/octavia/get.sock', data)
self.assertEqual('some result', result)
# Test with driver_exceptions.DriverAgentTimeout
self.assertRaises(driver_exceptions.DriverAgentTimeout,
self.driver_lib._get_resource,
fake_resource, fake_id)
# Test with random exception
self.assertRaises(driver_exceptions.DriverError,
self.driver_lib._get_resource,
fake_resource, fake_id)
@mock.patch('octavia_lib.api.drivers.driver_lib.DriverLibrary.'
'_get_resource')
def _test_get_object(self, get_method, name, mock_from_dict,
mock_get_resource):
mock_get_resource.side_effect = ['some data', None]
mock_from_dict.return_value = 'object'
result = get_method('fake id')
mock_get_resource.assert_called_once_with(name, 'fake id')
mock_from_dict.assert_called_once_with('some data')
self.assertEqual('object', result)
# Test not found
result = get_method('fake id')
self.assertIsNone(result)
@mock.patch('octavia_lib.api.drivers.data_models.LoadBalancer.from_dict')
def test_get_loadbalancer(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_loadbalancer,
constants.LOADBALANCERS, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.Listener.from_dict')
def test_get_listener(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_listener,
constants.LISTENERS, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.Pool.from_dict')
def test_get_pool(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_pool,
constants.POOLS, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.HealthMonitor.from_dict')
def test_get_healthmonitor(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_healthmonitor,
constants.HEALTHMONITORS, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.Member.from_dict')
def test_get_member(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_member,
constants.MEMBERS, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.L7Policy.from_dict')
def test_get_l7policy(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_l7policy,
constants.L7POLICIES, mock_from_dict)
@mock.patch('octavia_lib.api.drivers.data_models.L7Rule.from_dict')
def test_get_l7rule(self, mock_from_dict):
self._test_get_object(self.driver_lib.get_l7rule,
constants.L7RULES, mock_from_dict)
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