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# Copyright 2016 Cloudbase Solutions Srl
# 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 socket
import mock
from nova import exception
from nova.tests.unit.virt.hyperv import test_base
from nova.virt.hyperv import serialproxy
class SerialProxyTestCase(test_base.HyperVBaseTestCase):
@mock.patch.object(socket, 'socket')
def setUp(self, mock_socket):
super(SerialProxyTestCase, self).setUp()
self._mock_socket = mock_socket
self._mock_input_queue = mock.Mock()
self._mock_output_queue = mock.Mock()
self._mock_client_connected = mock.Mock()
threading_patcher = mock.patch.object(serialproxy, 'threading')
threading_patcher.start()
self.addCleanup(threading_patcher.stop)
self._proxy = serialproxy.SerialProxy(
mock.sentinel.instance_nane,
mock.sentinel.host,
mock.sentinel.port,
self._mock_input_queue,
self._mock_output_queue,
self._mock_client_connected)
@mock.patch.object(socket, 'socket')
def test_setup_socket_exception(self, mock_socket):
fake_socket = mock_socket.return_value
fake_socket.listen.side_effect = socket.error
self.assertRaises(exception.NovaException,
self._proxy._setup_socket)
fake_socket.setsockopt.assert_called_once_with(socket.SOL_SOCKET,
socket.SO_REUSEADDR,
1)
fake_socket.bind.assert_called_once_with((mock.sentinel.host,
mock.sentinel.port))
def test_stop_serial_proxy(self):
self._proxy._conn = mock.Mock()
self._proxy._sock = mock.Mock()
self._proxy.stop()
self._proxy._stopped.set.assert_called_once_with()
self._proxy._client_connected.clear.assert_called_once_with()
self._proxy._conn.shutdown.assert_called_once_with(socket.SHUT_RDWR)
self._proxy._conn.close.assert_called_once_with()
self._proxy._sock.close.assert_called_once_with()
@mock.patch.object(serialproxy.SerialProxy, '_accept_conn')
@mock.patch.object(serialproxy.SerialProxy, '_setup_socket')
def test_run(self, mock_setup_socket, mock_accept_con):
self._proxy._stopped = mock.MagicMock()
self._proxy._stopped.isSet.side_effect = [False, True]
self._proxy.run()
mock_setup_socket.assert_called_once_with()
mock_accept_con.assert_called_once_with()
def test_accept_connection(self):
mock_conn = mock.Mock()
self._proxy._sock = mock.Mock()
self._proxy._sock.accept.return_value = [
mock_conn, (mock.sentinel.client_addr, mock.sentinel.client_port)]
self._proxy._accept_conn()
self._proxy._client_connected.set.assert_called_once_with()
mock_conn.close.assert_called_once_with()
self.assertIsNone(self._proxy._conn)
thread = serialproxy.threading.Thread
for job in [self._proxy._get_data,
self._proxy._send_data]:
thread.assert_any_call(target=job)
def test_get_data(self):
self._mock_client_connected.isSet.return_value = True
self._proxy._conn = mock.Mock()
self._proxy._conn.recv.side_effect = [mock.sentinel.data, None]
self._proxy._get_data()
self._mock_client_connected.clear.assert_called_once_with()
self._mock_input_queue.put.assert_called_once_with(mock.sentinel.data)
def _test_send_data(self, exception=None):
self._mock_client_connected.isSet.side_effect = [True, False]
self._mock_output_queue.get_burst.return_value = mock.sentinel.data
self._proxy._conn = mock.Mock()
self._proxy._conn.sendall.side_effect = exception
self._proxy._send_data()
self._proxy._conn.sendall.assert_called_once_with(
mock.sentinel.data)
if exception:
self._proxy._client_connected.clear.assert_called_once_with()
def test_send_data(self):
self._test_send_data()
def test_send_data_exception(self):
self._test_send_data(exception=socket.error)
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