python-glanceclient/glanceclient/tests/unit/test_utils.py
Van Hung Pham 7791110b2f Replace assertTrue(isinstance()) with assertIsInstance()
Some of tests use different method of assertTrue(isinstance(A, B))
or assertEqual(type(A), B). The correct way is to use
assertIsInstance(A, B) provided by test tools.

Change-Id: Ibb5e5f848c5632f7c1895c47b8c1a938f2c746c3
2017-06-14 11:03:10 +07:00

231 lines
8.2 KiB
Python

# Copyright 2012 OpenStack Foundation
# 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 sys
import mock
from oslo_utils import encodeutils
from requests import Response
import six
# NOTE(jokke): simplified transition to py3, behaves like py2 xrange
from six.moves import range
import testtools
from glanceclient.common import utils
REQUEST_ID = 'req-1234'
def create_response_obj_with_req_id(req_id):
resp = Response()
resp.headers['x-openstack-request-id'] = req_id
return resp
class TestUtils(testtools.TestCase):
def test_make_size_human_readable(self):
self.assertEqual("106B", utils.make_size_human_readable(106))
self.assertEqual("1000kB", utils.make_size_human_readable(1024000))
self.assertEqual("1MB", utils.make_size_human_readable(1048576))
self.assertEqual("1.4GB", utils.make_size_human_readable(1476395008))
self.assertEqual("9.3MB", utils.make_size_human_readable(9761280))
self.assertEqual("0B", utils.make_size_human_readable(None))
def test_get_new_file_size(self):
size = 98304
file_obj = six.StringIO('X' * size)
try:
self.assertEqual(size, utils.get_file_size(file_obj))
# Check that get_file_size didn't change original file position.
self.assertEqual(0, file_obj.tell())
finally:
file_obj.close()
def test_get_consumed_file_size(self):
size, consumed = 98304, 304
file_obj = six.StringIO('X' * size)
file_obj.seek(consumed)
try:
self.assertEqual(size, utils.get_file_size(file_obj))
# Check that get_file_size didn't change original file position.
self.assertEqual(consumed, file_obj.tell())
finally:
file_obj.close()
def test_prettytable(self):
class Struct(object):
def __init__(self, **entries):
self.__dict__.update(entries)
# test that the prettytable output is wellformatted (left-aligned)
columns = ['ID', 'Name']
val = ['Name1', 'another', 'veeeery long']
images = [Struct(**{'id': i ** 16, 'name': val[i]})
for i in range(len(val))]
saved_stdout = sys.stdout
try:
sys.stdout = output_list = six.StringIO()
utils.print_list(images, columns)
sys.stdout = output_dict = six.StringIO()
utils.print_dict({'K': 'k', 'Key': 'veeeeeeeeeeeeeeeeeeeeeeee'
'eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee'
'eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee'
'eeeeeeeeeeeery long value'},
max_column_width=60)
finally:
sys.stdout = saved_stdout
self.assertEqual('''\
+-------+--------------+
| ID | Name |
+-------+--------------+
| | Name1 |
| 1 | another |
| 65536 | veeeery long |
+-------+--------------+
''',
output_list.getvalue())
self.assertEqual('''\
+----------+--------------------------------------------------------------+
| Property | Value |
+----------+--------------------------------------------------------------+
| K | k |
| Key | veeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee |
| | eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee |
| | ery long value |
+----------+--------------------------------------------------------------+
''',
output_dict.getvalue())
def test_schema_args_with_list_types(self):
# NOTE(flaper87): Regression for bug
# https://bugs.launchpad.net/python-glanceclient/+bug/1401032
def schema_getter(_type='string', enum=False):
prop = {
'type': ['null', _type],
'readOnly': True,
'description': 'Test schema',
}
if enum:
prop['enum'] = [None, 'opt-1', 'opt-2']
def actual_getter():
return {
'additionalProperties': False,
'required': ['name'],
'name': 'test_schema',
'properties': {
'test': prop,
}
}
return actual_getter
def dummy_func():
pass
decorated = utils.schema_args(schema_getter())(dummy_func)
arg, opts = decorated.__dict__['arguments'][0]
self.assertIn('--test', arg)
self.assertEqual(encodeutils.safe_decode, opts['type'])
decorated = utils.schema_args(schema_getter('integer'))(dummy_func)
arg, opts = decorated.__dict__['arguments'][0]
self.assertIn('--test', arg)
self.assertEqual(int, opts['type'])
decorated = utils.schema_args(schema_getter(enum=True))(dummy_func)
arg, opts = decorated.__dict__['arguments'][0]
self.assertIn('--test', arg)
self.assertEqual(encodeutils.safe_decode, opts['type'])
self.assertIn('None, opt-1, opt-2', opts['help'])
def test_iterable_closes(self):
# Regression test for bug 1461678.
def _iterate(i):
for chunk in i:
raise(IOError)
data = six.moves.StringIO('somestring')
data.close = mock.Mock()
i = utils.IterableWithLength(data, 10)
self.assertRaises(IOError, _iterate, i)
data.close.assert_called_with()
def test_safe_header(self):
self.assertEqual(('somekey', 'somevalue'),
utils.safe_header('somekey', 'somevalue'))
self.assertEqual(('somekey', None),
utils.safe_header('somekey', None))
for sensitive_header in utils.SENSITIVE_HEADERS:
(name, value) = utils.safe_header(
sensitive_header,
encodeutils.safe_encode('somestring'))
self.assertEqual(sensitive_header, name)
self.assertTrue(value.startswith("{SHA1}"))
(name, value) = utils.safe_header(sensitive_header, None)
self.assertEqual(sensitive_header, name)
self.assertIsNone(value)
def test_generator_proxy(self):
def _test_decorator():
i = 1
resp = create_response_obj_with_req_id(REQUEST_ID)
while True:
yield i, resp
i += 1
gen_obj = _test_decorator()
proxy = utils.GeneratorProxy(gen_obj)
# Proxy object should succeed in behaving as the
# wrapped object
self.assertIsInstance(proxy, type(gen_obj))
# Initially request_ids should be empty
self.assertEqual([], proxy.request_ids)
# Only after we have started iterating we should
# see non-empty `request_ids` property
proxy.next()
self.assertEqual([REQUEST_ID], proxy.request_ids)
# Even after multiple iterations `request_ids` property
# should only contain one request id
proxy.next()
proxy.next()
self.assertEqual(1, len(proxy.request_ids))
def test_request_id_proxy(self):
def test_data(val):
resp = create_response_obj_with_req_id(REQUEST_ID)
return val, resp
# Object of any type except decorator can be passed to test_data
proxy = utils.RequestIdProxy(test_data(11))
# Verify that proxy object has a property `request_ids` and it is
# a list of one request id
self.assertEqual([REQUEST_ID], proxy.request_ids)