9d3a07ed04
The version of psutil that was being required is not hosted on PyPi which caused some issues. This patch removes the psutil dependency in favor of using the method that was proposed for the havana backport of polling minimization. Closes-bug: #1268711 Change-Id: I5a1672cfd195099d92578321153c42b8bfd09b7d
132 lines
5.1 KiB
Python
132 lines
5.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012, Nicira, 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.
|
|
# @author: Dan Wendlandt, Nicira, Inc.
|
|
|
|
import fixtures
|
|
import mock
|
|
import testtools
|
|
|
|
from neutron.agent.linux import utils
|
|
from neutron.tests import base
|
|
|
|
|
|
class AgentUtilsExecuteTest(base.BaseTestCase):
|
|
def setUp(self):
|
|
super(AgentUtilsExecuteTest, self).setUp()
|
|
self.root_helper = "echo"
|
|
self.test_file = self.useFixture(
|
|
fixtures.TempDir()).join("test_execute.tmp")
|
|
open(self.test_file, 'w').close()
|
|
self.mock_popen_p = mock.patch("subprocess.Popen.communicate")
|
|
self.mock_popen = self.mock_popen_p.start()
|
|
self.addCleanup(self.mock_popen_p.stop)
|
|
|
|
def test_without_helper(self):
|
|
expected = "%s\n" % self.test_file
|
|
self.mock_popen.return_value = [expected, ""]
|
|
result = utils.execute(["ls", self.test_file])
|
|
self.assertEqual(result, expected)
|
|
|
|
def test_with_helper(self):
|
|
expected = "ls %s\n" % self.test_file
|
|
self.mock_popen.return_value = [expected, ""]
|
|
result = utils.execute(["ls", self.test_file],
|
|
self.root_helper)
|
|
self.assertEqual(result, expected)
|
|
|
|
def test_stderr_true(self):
|
|
expected = "%s\n" % self.test_file
|
|
self.mock_popen.return_value = [expected, ""]
|
|
out = utils.execute(["ls", self.test_file], return_stderr=True)
|
|
self.assertIsInstance(out, tuple)
|
|
self.assertEqual(out, (expected, ""))
|
|
|
|
def test_check_exit_code(self):
|
|
self.mock_popen.return_value = ["", ""]
|
|
stdout = utils.execute(["ls", self.test_file[:-1]],
|
|
check_exit_code=False)
|
|
self.assertEqual(stdout, "")
|
|
|
|
def test_execute_raises(self):
|
|
self.mock_popen.side_effect = RuntimeError
|
|
self.assertRaises(RuntimeError, utils.execute,
|
|
["ls", self.test_file[:-1]])
|
|
|
|
def test_process_input(self):
|
|
expected = "%s\n" % self.test_file[:-1]
|
|
self.mock_popen.return_value = [expected, ""]
|
|
result = utils.execute(["cat"], process_input="%s\n" %
|
|
self.test_file[:-1])
|
|
self.assertEqual(result, expected)
|
|
|
|
def test_with_addl_env(self):
|
|
expected = "%s\n" % self.test_file
|
|
self.mock_popen.return_value = [expected, ""]
|
|
result = utils.execute(["ls", self.test_file],
|
|
addl_env={'foo': 'bar'})
|
|
self.assertEqual(result, expected)
|
|
|
|
|
|
class AgentUtilsGetInterfaceMAC(base.BaseTestCase):
|
|
def test_get_interface_mac(self):
|
|
expect_val = '01:02:03:04:05:06'
|
|
with mock.patch('fcntl.ioctl') as ioctl:
|
|
ioctl.return_value = ''.join(['\x00' * 18,
|
|
'\x01\x02\x03\x04\x05\x06',
|
|
'\x00' * 232])
|
|
actual_val = utils.get_interface_mac('eth0')
|
|
self.assertEqual(actual_val, expect_val)
|
|
|
|
|
|
class AgentUtilsReplaceFile(base.BaseTestCase):
|
|
def test_replace_file(self):
|
|
# make file to replace
|
|
with mock.patch('tempfile.NamedTemporaryFile') as ntf:
|
|
ntf.return_value.name = '/baz'
|
|
with mock.patch('os.chmod') as chmod:
|
|
with mock.patch('os.rename') as rename:
|
|
utils.replace_file('/foo', 'bar')
|
|
|
|
expected = [mock.call('w+', dir='/', delete=False),
|
|
mock.call().write('bar'),
|
|
mock.call().close()]
|
|
|
|
ntf.assert_has_calls(expected)
|
|
chmod.assert_called_once_with('/baz', 0o644)
|
|
rename.assert_called_once_with('/baz', '/foo')
|
|
|
|
|
|
class TestFindChildPids(base.BaseTestCase):
|
|
|
|
def test_returns_empty_list_for_exit_code_1(self):
|
|
with mock.patch.object(utils, 'execute',
|
|
side_effect=RuntimeError('Exit code: 1')):
|
|
self.assertEqual(utils.find_child_pids(-1), [])
|
|
|
|
def test_returns_empty_list_for_no_output(self):
|
|
with mock.patch.object(utils, 'execute', return_value=''):
|
|
self.assertEqual(utils.find_child_pids(-1), [])
|
|
|
|
def test_returns_list_of_child_process_ids_for_good_ouput(self):
|
|
with mock.patch.object(utils, 'execute', return_value=' 123 \n 185\n'):
|
|
self.assertEqual(utils.find_child_pids(-1), ['123', '185'])
|
|
|
|
def test_raises_unknown_exception(self):
|
|
with testtools.ExpectedException(RuntimeError):
|
|
with mock.patch.object(utils, 'execute',
|
|
side_effect=RuntimeError()):
|
|
utils.find_child_pids(-1)
|