OpenStack Networking (Neutron)
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# Copyright 2018 Cloudbase Solutions.
# 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 io
import ddt
import eventlet
from eventlet import tpool
import mock
import six
from neutron.agent.windows import utils
from neutron.common import exceptions
from neutron.tests import base
class x_wmi(Exception):
def __init__(self, info='', com_error=None):
super(x_wmi, self).__init__(info)
self.info = info
self.com_error = com_error
@ddt.ddt
class WindowsUtilsTestCase(base.BaseTestCase):
@mock.patch('os.environ', {mock.sentinel.key0: mock.sentinel.val0})
@mock.patch.object(utils.subprocess, 'Popen')
@mock.patch.object(tpool, 'Proxy')
@mock.patch.object(eventlet, 'getcurrent')
def test_create_process(self, mock_get_current_gt,
mock_tpool_proxy, mock_popen):
cmd = ['fake_cmd']
popen_obj, ret_cmd = utils.create_process(
cmd,
run_as_root=mock.sentinel.run_as_root,
addl_env={mock.sentinel.key1: mock.sentinel.val1},
tpool_proxy=True)
exp_env = {mock.sentinel.key0: mock.sentinel.val0,
mock.sentinel.key1: mock.sentinel.val1}
mock_popen.assert_called_once_with(
cmd,
shell=False,
stdin=utils.subprocess.PIPE,
stdout=utils.subprocess.PIPE,
stderr=utils.subprocess.PIPE,
env=exp_env,
preexec_fn=None,
close_fds=False)
file_type = getattr(six.moves.builtins, 'file', io.IOBase)
mock_tpool_proxy.assert_called_once_with(
mock_popen.return_value, autowrap=(file_type, ))
self.assertEqual(mock_tpool_proxy.return_value, popen_obj)
self.assertEqual(ret_cmd, cmd)
@ddt.data({},
{'pid': None},
{'process_exists': True})
@ddt.unpack
@mock.patch.object(utils, 'wmi', create=True)
def test_get_wmi_process(self, mock_wmi,
pid=mock.sentinel.pid,
process_exists=False):
mock_conn = mock_wmi.WMI.return_value
if not pid:
exp_process = None
elif process_exists:
exp_process = mock.sentinel.wmi_obj
mock_conn.Win32_Process.return_value = [exp_process]
else:
exp_process = None
mock_conn.Win32_Process.return_value = []
wmi_obj = utils._get_wmi_process(pid)
self.assertEqual(exp_process, wmi_obj)
if pid:
mock_conn.Win32_Process.assert_called_once_with(ProcessId=pid)
@ddt.data({},
{"hresult": 0xff,
"expect_exc": True})
@ddt.unpack
@mock.patch.object(utils, 'wmi', create=True)
def test_get_wmi_process_exc(self, mock_wmi, expect_exc=False,
hresult=0x800703FA):
mock_conn = mock_wmi.WMI.return_value
mock_wmi.x_wmi = x_wmi
com_error = mock.Mock(hresult=hresult)
exc = x_wmi(com_error=com_error)
mock_conn.Win32_Process.side_effect = exc
if expect_exc:
self.assertRaises(
x_wmi, utils._get_wmi_process, mock.sentinel.pid)
else:
self.assertIsNone(utils._get_wmi_process(mock.sentinel.pid))
@ddt.data(True, False)
@mock.patch.object(utils, '_get_wmi_process')
def test_kill_process(self, process_exists, mock_get_process):
if not process_exists:
mock_get_process.return_value = None
utils.kill_process(mock.sentinel.pid, mock.sentinel.signal,
run_as_root=False)
mock_get_process.assert_called_once_with(mock.sentinel.pid)
if process_exists:
mock_get_process.return_value.Terminate.assert_called_once_with()
@ddt.data(True, False)
@mock.patch.object(utils, '_get_wmi_process')
def test_kill_process_exception(self, process_still_running,
mock_get_process):
mock_process = mock.Mock()
mock_process.Terminate.side_effect = OSError
mock_get_process.side_effect = [
mock_process,
mock_process if process_still_running else None]
if process_still_running:
self.assertRaises(OSError,
utils.kill_process,
mock.sentinel.pid,
mock.sentinel.signal)
else:
utils.kill_process(mock.sentinel.pid,
mock.sentinel.signal)
@ddt.data({'return_stder': True},
{'returncode': 1,
'check_exit_code': False,
'log_fail_as_error': True},
{'returncode': 1,
'log_fail_as_error': True,
'extra_ok_codes': [1]},
{'returncode': 1,
'log_fail_as_error': True,
'exp_fail': True})
@ddt.unpack
@mock.patch.object(utils, 'create_process')
@mock.patch.object(utils, 'avoid_blocking_call')
def test_execute(self, mock_avoid_blocking_call, mock_create_process,
returncode=0, check_exit_code=True, return_stder=True,
log_fail_as_error=True, extra_ok_codes=None,
exp_fail=False):
fake_stdin = 'fake_stdin'
fake_stdout = 'fake_stdout'
fake_stderr = 'fake_stderr'
mock_popen = mock.Mock()
mock_popen.communicate.return_value = fake_stdout, fake_stderr
mock_popen.returncode = returncode
mock_create_process.return_value = mock_popen, mock.sentinel.cmd
mock_avoid_blocking_call.side_effect = (
lambda func, *args, **kwargs: func(*args, **kwargs))
args = (mock.sentinel.cmd, fake_stdin, mock.sentinel.env,
check_exit_code, return_stder, log_fail_as_error,
extra_ok_codes)
if exp_fail:
self.assertRaises(exceptions.ProcessExecutionError,
utils.execute,
*args)
else:
ret_val = utils.execute(*args)
if return_stder:
exp_ret_val = (fake_stdout, fake_stderr)
else:
exp_ret_val = fake_stdout
self.assertEqual(exp_ret_val, ret_val)
mock_create_process.assert_called_once_with(
mock.sentinel.cmd, addl_env=mock.sentinel.env,
tpool_proxy=False)
mock_avoid_blocking_call.assert_called_once_with(
mock_popen.communicate, six.b(fake_stdin))
mock_popen.communicate.assert_called_once_with(six.b(fake_stdin))
mock_popen.stdin.close.assert_called_once_with()
def test_get_root_helper_child_pid(self):
pid = utils.get_root_helper_child_pid(
mock.sentinel.pid,
mock.sentinel.exp_cmd,
run_as_root=False)
self.assertEqual(str(mock.sentinel.pid), pid)
@ddt.data(True, False)
@mock.patch.object(utils, '_get_wmi_process')
def test_process_is_running(self, process_running, mock_get_process):
mock_get_process.return_value = (
mock.sentinel.wmi_obj if process_running else None)
self.assertEqual(process_running,
utils.process_is_running(mock.sentinel.pid))
mock_get_process.assert_called_once_with(mock.sentinel.pid)
@ddt.data({},
{'process_running': False},
{'command_matches': False})
@ddt.unpack
@mock.patch.object(utils, '_get_wmi_process')
def test_pid_invoked_with_cmdline(self, mock_get_process,
process_running=True,
command_matches=False):
exp_cmd = 'exp_cmd'
mock_process = mock.Mock()
mock_get_process.return_value = (
mock_process if process_running else None)
mock_process.CommandLine = (
exp_cmd if command_matches else 'unexpected_cmd')
exp_result = process_running and command_matches
result = utils.pid_invoked_with_cmdline(mock.sentinel.pid,
[exp_cmd])
self.assertEqual(exp_result, result)
mock_get_process.assert_called_once_with(mock.sentinel.pid)