ff0fbf5810
unittest2 backports some nice features from newer versions of unittest for python 2.7 (like assertRaises context manager). Moreover tests now are using either oslotest or testtools directly, switching to one test framework is going to simplify tests. Change-Id: Ibce9403b20958f9db2a59db9c6b7479a4fc57857 Implements blueprint: volume-manager-refactoring
215 lines
9.9 KiB
Python
215 lines
9.9 KiB
Python
# Copyright 2011 Justin Santa Barbara
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import socket
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import mock
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from oslo.config import cfg
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import requests
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import stevedore
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import unittest2
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import urllib3
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from fuel_agent import errors
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from fuel_agent.utils import utils
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CONF = cfg.CONF
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class ExecuteTestCase(unittest2.TestCase):
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"""This class is partly based on the same class in openstack/ironic."""
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def setUp(self):
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super(ExecuteTestCase, self).setUp()
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fake_driver = stevedore.extension.Extension('fake_driver', None, None,
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mock.MagicMock)
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self.drv_manager = stevedore.driver.DriverManager.make_test_instance(
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fake_driver)
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def test_parse_unit(self):
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self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=True), 1)
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self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=False), 1)
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self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=True), 2)
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self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=False), 1)
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self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=True), 2)
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self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=False), 1)
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self.assertRaises(ValueError, utils.parse_unit, '1.00m', 'MiB')
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self.assertRaises(ValueError, utils.parse_unit, '', 'MiB')
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def test_B2MiB(self):
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self.assertEqual(utils.B2MiB(1048575, ceil=False), 0)
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self.assertEqual(utils.B2MiB(1048576, ceil=False), 1)
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self.assertEqual(utils.B2MiB(1048575, ceil=True), 1)
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self.assertEqual(utils.B2MiB(1048576, ceil=True), 1)
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self.assertEqual(utils.B2MiB(1048577, ceil=True), 2)
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def test_check_exit_code_boolean(self):
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utils.execute('/usr/bin/env', 'false', check_exit_code=False)
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self.assertRaises(errors.ProcessExecutionError,
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utils.execute,
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'/usr/bin/env', 'false', check_exit_code=True)
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@mock.patch('fuel_agent.utils.utils.time.sleep')
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@mock.patch('fuel_agent.utils.utils.subprocess.Popen')
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def test_execute_ok_on_third_attempts(self, mock_popen, mock_sleep):
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process = mock.Mock()
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mock_popen.side_effect = [OSError, ValueError, process]
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process.communicate.return_value = (None, None)
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process.returncode = 0
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utils.execute('/usr/bin/env', 'false', attempts=3)
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self.assertEqual(2 * [mock.call(CONF.execute_retry_delay)],
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mock_sleep.call_args_list)
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@mock.patch('fuel_agent.utils.utils.time.sleep')
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@mock.patch('fuel_agent.utils.utils.subprocess.Popen')
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def test_execute_failed(self, mock_popen, mock_sleep):
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mock_popen.side_effect = OSError
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self.assertRaises(errors.ProcessExecutionError, utils.execute,
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'/usr/bin/env', 'false', attempts=2)
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self.assertEqual(1 * [mock.call(CONF.execute_retry_delay)],
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mock_sleep.call_args_list)
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@mock.patch('stevedore.driver.DriverManager')
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def test_get_driver(self, mock_drv_manager):
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mock_drv_manager.return_value = self.drv_manager
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self.assertEqual(mock.MagicMock.__name__,
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utils.get_driver('fake_driver').__name__)
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@mock.patch('jinja2.Environment')
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@mock.patch('jinja2.FileSystemLoader')
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@mock.patch('six.moves.builtins.open')
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def test_render_and_save_fail(self, mock_open, mock_j_lo, mock_j_env):
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mock_open.side_effect = Exception('foo')
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self.assertRaises(errors.TemplateWriteError, utils.render_and_save,
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'fake_dir', 'fake_tmpl_name', 'fake_data',
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'fake_file_name')
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@mock.patch('jinja2.Environment')
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@mock.patch('jinja2.FileSystemLoader')
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@mock.patch('six.moves.builtins.open')
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def test_render_and_save_ok(self, mock_open, mock_j_lo, mock_j_env):
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mock_render = mock.Mock()
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mock_render.render.return_value = 'fake_data'
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mock_j_env.get_template.return_value = mock_render
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utils.render_and_save('fake_dir', 'fake_tmpl_name', 'fake_data',
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'fake_file_name')
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mock_open.assert_called_once_with('fake_file_name', 'w')
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def test_calculate_md5_ok(self):
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# calculated by 'printf %10000s | md5sum'
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with mock.patch('six.moves.builtins.open',
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mock.mock_open(read_data=' ' * 10000), create=True):
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self.assertEqual('f38898bb69bb02bccb9594dfe471c5c0',
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utils.calculate_md5('fake', 10000))
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self.assertEqual('6934d9d33cd2d0c005994e7d96d2e0d9',
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utils.calculate_md5('fake', 1000))
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self.assertEqual('1e68934346ee57858834a205017af8b7',
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utils.calculate_md5('fake', 100))
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self.assertEqual('41b394758330c83757856aa482c79977',
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utils.calculate_md5('fake', 10))
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self.assertEqual('7215ee9c7d9dc229d2921a40e899ec5f',
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utils.calculate_md5('fake', 1))
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self.assertEqual('d41d8cd98f00b204e9800998ecf8427e',
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utils.calculate_md5('fake', 0))
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@mock.patch.object(requests, 'get')
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def test_init_http_request_ok(self, mock_req):
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utils.init_http_request('fake_url')
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mock_req.assert_called_once_with(
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'fake_url', stream=True, timeout=CONF.http_request_timeout,
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headers={'Range': 'bytes=0-'})
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@mock.patch('time.sleep')
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@mock.patch.object(requests, 'get')
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def test_init_http_request_non_critical_errors(self, mock_req, mock_s):
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mock_ok = mock.Mock()
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mock_req.side_effect = [urllib3.exceptions.DecodeError(),
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urllib3.exceptions.ProxyError(),
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requests.exceptions.ConnectionError(),
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requests.exceptions.Timeout(),
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requests.exceptions.TooManyRedirects(),
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socket.timeout(),
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mock_ok]
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req_obj = utils.init_http_request('fake_url')
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self.assertEqual(mock_ok, req_obj)
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@mock.patch.object(requests, 'get')
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def test_init_http_request_wrong_http_status(self, mock_req):
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mock_fail = mock.Mock()
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mock_fail.raise_for_status.side_effect = KeyError()
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mock_req.return_value = mock_fail
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self.assertRaises(KeyError, utils.init_http_request, 'fake_url')
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@mock.patch('time.sleep')
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@mock.patch.object(requests, 'get')
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def test_init_http_request_max_retries_exceeded(self, mock_req, mock_s):
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mock_req.side_effect = requests.exceptions.ConnectionError()
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self.assertRaises(errors.HttpUrlConnectionError,
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utils.init_http_request, 'fake_url')
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@mock.patch('fuel_agent.utils.utils.os.makedirs')
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@mock.patch('fuel_agent.utils.utils.os.path.isdir', return_value=False)
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def test_makedirs_if_not_exists(self, mock_isdir, mock_makedirs):
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utils.makedirs_if_not_exists('/fake/path')
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mock_isdir.assert_called_once_with('/fake/path')
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mock_makedirs.assert_called_once_with('/fake/path', mode=0o755)
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@mock.patch('fuel_agent.utils.utils.os.makedirs')
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@mock.patch('fuel_agent.utils.utils.os.path.isdir', return_value=False)
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def test_makedirs_if_not_exists_mode_given(
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self, mock_isdir, mock_makedirs):
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utils.makedirs_if_not_exists('/fake/path', mode=0o000)
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mock_isdir.assert_called_once_with('/fake/path')
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mock_makedirs.assert_called_once_with('/fake/path', mode=0o000)
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@mock.patch('fuel_agent.utils.utils.os.makedirs')
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@mock.patch('fuel_agent.utils.utils.os.path.isdir', return_value=True)
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def test_makedirs_if_not_exists_already_exists(
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self, mock_isdir, mock_makedirs):
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utils.makedirs_if_not_exists('/fake/path')
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mock_isdir.assert_called_once_with('/fake/path')
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self.assertEqual(mock_makedirs.mock_calls, [])
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@mock.patch('fuel_agent.utils.utils.os.listdir')
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def test_guess_filename(self, mock_oslistdir):
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mock_oslistdir.return_value = ['file1', 'file2', 'file3']
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filename = utils.guess_filename('/some/path', '^file2.*')
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self.assertEqual(filename, 'file2')
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mock_oslistdir.assert_called_once_with('/some/path')
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@mock.patch('fuel_agent.utils.utils.os.listdir')
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def test_guess_filename_not_found(self, mock_oslistdir):
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mock_oslistdir.return_value = ['file1', 'file2', 'file3']
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filename = utils.guess_filename('/some/path', '^file4.*')
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self.assertIsNone(filename)
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mock_oslistdir.assert_called_once_with('/some/path')
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@mock.patch('fuel_agent.utils.utils.os.listdir')
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def test_guess_filename_not_exact_match(self, mock_oslistdir):
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mock_oslistdir.return_value = ['file1', 'file2', 'file3']
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filename = utils.guess_filename('/some/path', '^file.*')
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# by default files are sorted in backward direction
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self.assertEqual(filename, 'file3')
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mock_oslistdir.assert_called_once_with('/some/path')
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@mock.patch('fuel_agent.utils.utils.os.listdir')
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def test_guess_filename_not_exact_match_forward_sort(self, mock_oslistdir):
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mock_oslistdir.return_value = ['file1', 'file2', 'file3']
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filename = utils.guess_filename('/some/path', '^file.*', reverse=False)
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# by default files are sorted in backward direction
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self.assertEqual(filename, 'file1')
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mock_oslistdir.assert_called_once_with('/some/path')
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