bareon/fuel_agent/tests/test_utils.py
Alexander Gordeev d74e6dc103 [IBP] Compare image checksums
If checksum and size provided in image meta data, fuel-agent will do
checksum comparing to ensure that data written on disk and downloaded
image are identical.

Partially implements blueprint: ibp-image-checksums
Depends on: Ia9c8325a2f71af2a1af2ad54a1ae414edf49a7c6
Change-Id: Id120848537cfc4ed908b9e524624855fb7308603
2015-03-12 14:38:26 +03:00

139 lines
6.1 KiB
Python

# Copyright 2011 Justin Santa Barbara
# Copyright 2012 Hewlett-Packard Development Company, L.P.
#
# 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 testtools
import mock
from oslo.config import cfg
import requests
import stevedore
import urllib3
from fuel_agent import errors
from fuel_agent.utils import utils
CONF = cfg.CONF
class ExecuteTestCase(testtools.TestCase):
"""This class is partly based on the same class in openstack/ironic."""
def setUp(self):
super(ExecuteTestCase, self).setUp()
fake_driver = stevedore.extension.Extension('fake_driver', None, None,
'fake_obj')
self.drv_manager = stevedore.driver.DriverManager.make_test_instance(
fake_driver)
def test_parse_unit(self):
self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=True), 1)
self.assertEqual(utils.parse_unit('1.00m', 'm', ceil=False), 1)
self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=True), 2)
self.assertEqual(utils.parse_unit('1.49m', 'm', ceil=False), 1)
self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=True), 2)
self.assertEqual(utils.parse_unit('1.51m', 'm', ceil=False), 1)
self.assertRaises(ValueError, utils.parse_unit, '1.00m', 'MiB')
self.assertRaises(ValueError, utils.parse_unit, '', 'MiB')
def test_B2MiB(self):
self.assertEqual(utils.B2MiB(1048575, ceil=False), 0)
self.assertEqual(utils.B2MiB(1048576, ceil=False), 1)
self.assertEqual(utils.B2MiB(1048575, ceil=True), 1)
self.assertEqual(utils.B2MiB(1048576, ceil=True), 1)
self.assertEqual(utils.B2MiB(1048577, ceil=True), 2)
def test_check_exit_code_boolean(self):
utils.execute('/usr/bin/env', 'false', check_exit_code=False)
self.assertRaises(errors.ProcessExecutionError,
utils.execute,
'/usr/bin/env', 'false', check_exit_code=True)
@mock.patch('stevedore.driver.DriverManager')
def test_get_driver(self, mock_drv_manager):
mock_drv_manager.return_value = self.drv_manager
self.assertEqual('fake_obj', utils.get_driver('fake_driver'))
@mock.patch('jinja2.Environment')
@mock.patch('jinja2.FileSystemLoader')
@mock.patch('six.moves.builtins.open')
def test_render_and_save_fail(self, mock_open, mock_j_lo, mock_j_env):
mock_open.side_effect = Exception('foo')
self.assertRaises(errors.TemplateWriteError, utils.render_and_save,
'fake_dir', 'fake_tmpl_name', 'fake_data',
'fake_file_name')
@mock.patch('jinja2.Environment')
@mock.patch('jinja2.FileSystemLoader')
@mock.patch('six.moves.builtins.open')
def test_render_and_save_ok(self, mock_open, mock_j_lo, mock_j_env):
mock_render = mock.Mock()
mock_render.render.return_value = 'fake_data'
mock_j_env.get_template.return_value = mock_render
utils.render_and_save('fake_dir', 'fake_tmpl_name', 'fake_data',
'fake_file_name')
mock_open.assert_called_once_with('fake_file_name', 'w')
def test_calculate_md5_ok(self):
# calculated by 'printf %10000s | md5sum'
with mock.patch('six.moves.builtins.open',
mock.mock_open(read_data=' ' * 10000), create=True):
self.assertEqual('f38898bb69bb02bccb9594dfe471c5c0',
utils.calculate_md5('fake', 10000))
self.assertEqual('6934d9d33cd2d0c005994e7d96d2e0d9',
utils.calculate_md5('fake', 1000))
self.assertEqual('1e68934346ee57858834a205017af8b7',
utils.calculate_md5('fake', 100))
self.assertEqual('41b394758330c83757856aa482c79977',
utils.calculate_md5('fake', 10))
self.assertEqual('7215ee9c7d9dc229d2921a40e899ec5f',
utils.calculate_md5('fake', 1))
self.assertEqual('d41d8cd98f00b204e9800998ecf8427e',
utils.calculate_md5('fake', 0))
@mock.patch.object(requests, 'get')
def test_init_http_request_ok(self, mock_req):
utils.init_http_request('fake_url')
mock_req.assert_called_once_with(
'fake_url', stream=True, timeout=CONF.http_request_timeout,
headers={'Range': 'bytes=0-'})
@mock.patch('time.sleep')
@mock.patch.object(requests, 'get')
def test_init_http_request_non_critical_errors(self, mock_req, mock_s):
mock_ok = mock.Mock()
mock_req.side_effect = [urllib3.exceptions.DecodeError(),
urllib3.exceptions.ProxyError(),
requests.exceptions.ConnectionError(),
requests.exceptions.Timeout(),
requests.exceptions.TooManyRedirects(),
mock_ok]
req_obj = utils.init_http_request('fake_url')
self.assertEqual(mock_ok, req_obj)
@mock.patch.object(requests, 'get')
def test_init_http_request_wrong_http_status(self, mock_req):
mock_fail = mock.Mock()
mock_fail.raise_for_status.side_effect = KeyError()
mock_req.return_value = mock_fail
self.assertRaises(KeyError, utils.init_http_request, 'fake_url')
@mock.patch('time.sleep')
@mock.patch.object(requests, 'get')
def test_init_http_request_max_retries_exceeded(self, mock_req, mock_s):
mock_req.side_effect = requests.exceptions.ConnectionError()
self.assertRaises(errors.HttpUrlConnectionError,
utils.init_http_request, 'fake_url')