Claudiu Popa fbce2bad36 Add testutils.ConfPatcher and use it in tests
The tests were modifying a global ConfigOpts object, without
resetting the old value, which could affect other tests as well.
The new ConfPatcher class can be used both as a context manager
and as a decorator, making sure that the old value of configuration
option is set back after exiting from the decorated function or from
the context manager.

Change-Id: If23bf225207977e0e313dc806d53bca8a40215d6
2015-02-12 19:43:16 +02:00

115 lines
4.1 KiB
Python

# Copyright 2014 Cloudbase Solutions Srl
#
# 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 importlib
import unittest
try:
import unittest.mock as mock
except ImportError:
import mock
from oslo.config import cfg
import six
CONF = cfg.CONF
class SerialPortHandlerTests(unittest.TestCase):
def setUp(self):
self._serial = mock.MagicMock()
self._stream = mock.MagicMock()
self._module_patcher = mock.patch.dict(
'sys.modules',
{'serial': self._serial})
self._module_patcher.start()
self.log = importlib.import_module("cloudbaseinit.utils.log")
self._old_value = CONF.get('logging_serial_port_settings')
CONF.set_override('logging_serial_port_settings', "COM1,115200,N,8")
self._serial_port_handler = self.log.SerialPortHandler()
self._unicode_stream = self._serial_port_handler._UnicodeToBytesStream(
self._stream)
self._serial_port_handler._port = mock.MagicMock()
def tearDown(self):
self._module_patcher.stop()
CONF.set_override('logging_serial_port_settings', self._old_value)
def test_init(self):
mock_Serial = self._serial.Serial
mock_Serial.return_value.isOpen.return_value = False
self.log.SerialPortHandler()
mock_Serial.assert_called_with(bytesize=8, baudrate=115200,
port='COM1', parity='N')
mock_Serial.return_value.isOpen.assert_called_with()
mock_Serial.return_value.open.assert_called_once_with()
def test_close(self):
self._serial_port_handler._port.isOpen.return_value = True
self._serial_port_handler.close()
self._serial_port_handler._port.isOpen.assert_called_once_with()
self._serial_port_handler._port.close.assert_called_once_with()
@mock.patch('cloudbaseinit.openstack.common.log.setup')
@mock.patch('cloudbaseinit.openstack.common.log.getLogger')
@mock.patch('cloudbaseinit.utils.log.SerialPortHandler')
@mock.patch('cloudbaseinit.openstack.common.log.ContextFormatter')
def test_setup(self, mock_ContextFormatter, mock_SerialPortHandler,
mock_getLogger, mock_setup):
self.log.setup(product_name='fake name')
mock_setup.assert_called_once_with('fake name')
mock_getLogger.assert_called_once_with('fake name')
mock_getLogger().logger.addHandler.assert_called_once_with(
mock_SerialPortHandler())
mock_ContextFormatter.assert_called_once_with(
project='fake name', datefmt=CONF.log_date_format)
mock_SerialPortHandler().setFormatter.assert_called_once_with(
mock_ContextFormatter())
def _test_unicode_write(self, is_six_instance=False):
self._stream.isOpen.return_value = False
if is_six_instance:
fake_data = mock.MagicMock(spec=six.text_type)
fake_data.encode = mock.MagicMock()
else:
fake_data = mock.MagicMock()
self._unicode_stream.write(fake_data)
self._stream.isOpen.assert_called_once_with()
self._stream.open.assert_called_once_with()
if is_six_instance:
self._stream.write.assert_called_once_with(
fake_data.encode.return_value)
fake_data.encode.assert_called_once_with('utf-8')
else:
self._stream.write.assert_called_once_with(fake_data)
def test_unicode_write(self):
self._test_unicode_write()
def test_unicode_write_with_encode(self):
self._test_unicode_write(is_six_instance=True)