fuel-agent/fuel_agent/tests/test_artifact_utils.py
Maciej Kwiek ff0fbf5810 All tests in fuel_agent use unittest2 now
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
2015-07-16 12:42:52 +02:00

120 lines
4.3 KiB
Python

# Copyright 2014 Mirantis, 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.
import mock
from oslo.config import cfg
import unittest2
import zlib
from fuel_agent import errors
from fuel_agent.utils import artifact as au
from fuel_agent.utils import utils
CONF = cfg.CONF
class TestTarget(unittest2.TestCase):
def setUp(self):
super(TestTarget, self).setUp()
self.tgt = au.Target()
def test_target_next(self):
self.assertRaises(StopIteration, self.tgt.next)
@mock.patch('os.fsync')
@mock.patch.object(au.Target, '__iter__')
def test_target_target(self, mock_iter, mock_os_sync):
mock_iter.return_value = iter(['chunk1', 'chunk2', 'chunk3'])
m = mock.mock_open()
with mock.patch('six.moves.builtins.open', m):
self.tgt.target()
mock_write_expected_calls = [mock.call('chunk1'), mock.call('chunk2'),
mock.call('chunk3')]
file_handle = m()
self.assertEqual(mock_write_expected_calls,
file_handle.write.call_args_list)
file_handle.flush.assert_called_once_with()
class TestLocalFile(unittest2.TestCase):
def setUp(self):
super(TestLocalFile, self).setUp()
self.lf = au.LocalFile('/dev/null')
def test_localfile_next(self):
self.lf.fileobj = mock.Mock()
self.lf.fileobj.read.side_effect = ['some_data', 'another_data']
self.assertEqual('some_data', self.lf.next())
self.assertEqual('another_data', self.lf.next())
self.assertRaises(StopIteration, self.lf.next)
class TestHttpUrl(unittest2.TestCase):
@mock.patch.object(utils, 'init_http_request')
def test_httpurl_init_ok(self, mock_req):
mock_req.return_value = mock.Mock(headers={'content-length': 123})
httpurl = au.HttpUrl('fake_url')
self.assertEqual(123, httpurl.length)
mock_req.assert_called_once_with('fake_url')
@mock.patch.object(utils, 'init_http_request')
def test_httpurl_init_invalid_content_length(self, mock_req):
mock_req.return_value = mock.Mock(headers={'content-length':
'invalid'})
self.assertRaises(errors.HttpUrlInvalidContentLength, au.HttpUrl,
'fake_url')
@mock.patch.object(utils, 'init_http_request')
def test_httpurl_next_ok(self, mock_req):
content = ['fake content #1', 'fake content #2']
req_mock = mock.Mock(headers={'content-length': 30})
req_mock.raw.read.side_effect = content
mock_req.return_value = req_mock
httpurl = au.HttpUrl('fake_url')
for data in enumerate(httpurl):
self.assertEqual(content[data[0]], data[1])
class TestGunzipStream(unittest2.TestCase):
def test_gunzip_stream_next(self):
content = ['fake content #1']
compressed_stream = [zlib.compress(data) for data in content]
gunzip_stream = au.GunzipStream(compressed_stream)
for data in enumerate(gunzip_stream):
self.assertEqual(content[data[0]], data[1])
class TestChain(unittest2.TestCase):
def setUp(self):
super(TestChain, self).setUp()
self.chain = au.Chain()
def test_append(self):
self.assertEqual(0, len(self.chain.processors))
self.chain.append('fake_processor')
self.assertIn('fake_processor', self.chain.processors)
self.assertEqual(1, len(self.chain.processors))
def test_process(self):
self.chain.processors.append('fake_uri')
fake_processor = mock.Mock(spec=au.Target)
self.chain.processors.append(fake_processor)
self.chain.processors.append('fake_target')
self.chain.process()
expected_calls = [mock.call('fake_uri')]
self.assertEqual(expected_calls, fake_processor.call_args_list)