Files
python-glanceclient/tests/utils.py
mouad benchchaoui 1d7da740b2 Show a pretty progressbar when uploading and downloading an image.
Add a new module that contain generic wrapper for file and iterator, which
are used to wrap image to upload and the request body iterator in upload and
download cases repectively, to show and advance a pretty progress bar when this
laters are consumed, The progress bar is triggered by adding a --progress command
line argument to commands: image-create, image-download or image-update.

Change-Id: I2ba42fd0c58f4fa087adb568ec3f08246cae3759
bug fix: LP#1112309
blueprint: progressbar-when-uploading
2013-08-08 15:40:15 +02:00

113 lines
3.3 KiB
Python

# Copyright 2012 OpenStack LLC.
# 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 copy
import requests
import StringIO
import testtools
from glanceclient.common import http
class FakeAPI(object):
def __init__(self, fixtures):
self.fixtures = fixtures
self.calls = []
def _request(self, method, url, headers=None, body=None):
call = (method, url, headers or {}, body)
self.calls.append(call)
return self.fixtures[url][method]
def raw_request(self, *args, **kwargs):
fixture = self._request(*args, **kwargs)
resp = FakeResponse(fixture[0], StringIO.StringIO(fixture[1]))
body_iter = http.ResponseBodyIterator(resp)
return resp, body_iter
def json_request(self, *args, **kwargs):
fixture = self._request(*args, **kwargs)
return FakeResponse(fixture[0]), fixture[1]
class FakeResponse(object):
def __init__(self, headers, body=None,
version=1.0, status=200, reason="Ok"):
"""
:param headers: dict representing HTTP response headers
:param body: file-like object
:param version: HTTP Version
:param status: Response status code
:param reason: Status code related message.
"""
self.body = body
self.status = status
self.reason = reason
self.version = version
self.headers = headers
def getheaders(self):
return copy.deepcopy(self.headers).items()
def getheader(self, key, default):
return self.headers.get(key, default)
def read(self, amt):
return self.body.read(amt)
class TestCase(testtools.TestCase):
TEST_REQUEST_BASE = {
'config': {'danger_mode': False},
'verify': True}
class TestResponse(requests.Response):
"""
Class used to wrap requests.Response and provide some
convenience to initialize with a dict
"""
def __init__(self, data):
self._text = None
super(TestResponse, self)
if isinstance(data, dict):
self.status_code = data.get('status_code', None)
self.headers = data.get('headers', None)
# Fake the text attribute to streamline Response creation
self._text = data.get('text', None)
else:
self.status_code = data
def __eq__(self, other):
return self.__dict__ == other.__dict__
@property
def text(self):
return self._text
class FakeTTYStdout(StringIO.StringIO):
"""A Fake stdout that try to emulate a TTY device as much as possible."""
def isatty(self):
return True
def write(self, data):
# When a CR (carriage return) is found reset file.
if data.startswith('\r'):
self.seek(0)
data = data[1:]
return StringIO.StringIO.write(self, data)