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stubs.py
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stubs.py
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 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.
"""Stubouts, mocks and fixtures for the test suite"""
import os
import shutil
try:
import sendfile
SENDFILE_SUPPORTED = True
except ImportError:
SENDFILE_SUPPORTED = False
import webob
from glance.api.middleware import version_negotiation
from glance.api.v1 import router
import glance.common.client
from glance.common import context
from glance.common import exception
from glance.registry.api import v1 as rserver
from glance.tests import utils
VERBOSE = False
DEBUG = False
def stub_out_registry_and_store_server(stubs, base_dir):
"""
Mocks calls to 127.0.0.1 on 9191 and 9292 for testing so
that a real Glance server does not need to be up and
running
"""
class FakeRegistryConnection(object):
def __init__(self, *args, **kwargs):
pass
def connect(self):
return True
def close(self):
return True
def request(self, method, url, body=None, headers=None):
self.req = webob.Request.blank("/" + url.lstrip("/"))
self.req.method = method
if headers:
self.req.headers = headers
if body:
self.req.body = body
def getresponse(self):
sql_connection = os.environ.get('GLANCE_SQL_CONNECTION',
"sqlite://")
context_class = 'glance.registry.context.RequestContext'
conf = utils.TestConfigOpts({
'sql_connection': sql_connection,
'verbose': VERBOSE,
'debug': DEBUG
})
api = context.ContextMiddleware(rserver.API(conf),
conf, context_class=context_class)
res = self.req.get_response(api)
# httplib.Response has a read() method...fake it out
def fake_reader():
return res.body
setattr(res, 'read', fake_reader)
return res
class FakeSocket(object):
def __init__(self, *args, **kwargs):
pass
def fileno(self):
return 42
class FakeSendFile(object):
def __init__(self, req):
self.req = req
def sendfile(self, o, i, offset, nbytes):
os.lseek(i, offset, os.SEEK_SET)
prev_len = len(self.req.body)
self.req.body += os.read(i, nbytes)
return len(self.req.body) - prev_len
class FakeGlanceConnection(object):
def __init__(self, *args, **kwargs):
self.sock = FakeSocket()
self.stub_force_sendfile = kwargs.get('stub_force_sendfile',
SENDFILE_SUPPORTED)
def connect(self):
return True
def close(self):
return True
def putrequest(self, method, url):
self.req = webob.Request.blank("/" + url.lstrip("/"))
if self.stub_force_sendfile:
fake_sendfile = FakeSendFile(self.req)
stubs.Set(sendfile, 'sendfile', fake_sendfile.sendfile)
self.req.method = method
def putheader(self, key, value):
self.req.headers[key] = value
def endheaders(self):
hl = [i.lower() for i in self.req.headers.keys()]
assert not ('content-length' in hl and
'transfer-encoding' in hl), \
'Content-Length and Transfer-Encoding are mutually exclusive'
def send(self, data):
# send() is called during chunked-transfer encoding, and
# data is of the form %x\r\n%s\r\n. Strip off the %x and
# only write the actual data in tests.
self.req.body += data.split("\r\n")[1]
def request(self, method, url, body=None, headers=None):
self.req = webob.Request.blank("/" + url.lstrip("/"))
self.req.method = method
if headers:
self.req.headers = headers
if body:
self.req.body = body
def getresponse(self):
conf = utils.TestConfigOpts({
'verbose': VERBOSE,
'debug': DEBUG,
'bind_host': '0.0.0.0',
'bind_port': '9999999',
'registry_host': '0.0.0.0',
'registry_port': '9191',
'default_store': 'file',
'filesystem_store_datadir': base_dir,
'policy_file': os.path.join(base_dir, 'policy.json'),
})
api = version_negotiation.VersionNegotiationFilter(
context.ContextMiddleware(router.API(conf), conf),
conf)
res = self.req.get_response(api)
# httplib.Response has a read() method...fake it out
def fake_reader():
return res.body
setattr(res, 'read', fake_reader)
return res
def fake_get_connection_type(client):
"""
Returns the proper connection type
"""
DEFAULT_REGISTRY_PORT = 9191
DEFAULT_API_PORT = 9292
if (client.port == DEFAULT_API_PORT and
client.host == '0.0.0.0'):
return FakeGlanceConnection
elif (client.port == DEFAULT_REGISTRY_PORT and
client.host == '0.0.0.0'):
return FakeRegistryConnection
def fake_image_iter(self):
for i in self.source.app_iter:
yield i
def fake_sendable(self, body):
force = getattr(self, 'stub_force_sendfile', None)
if force is None:
return self._stub_orig_sendable(body)
else:
if force:
assert glance.common.client.SENDFILE_SUPPORTED
return force
stubs.Set(glance.common.client.BaseClient, 'get_connection_type',
fake_get_connection_type)
setattr(glance.common.client.BaseClient, '_stub_orig_sendable',
glance.common.client.BaseClient._sendable)
stubs.Set(glance.common.client.BaseClient, '_sendable',
fake_sendable)
stubs.Set(glance.common.client.ImageBodyIterator, '__iter__',
fake_image_iter)
def stub_out_registry_server(stubs, **kwargs):
"""
Mocks calls to 127.0.0.1 on 9191 for testing so
that a real Glance Registry server does not need to be up and
running
"""
class FakeRegistryConnection(object):
def __init__(self, *args, **kwargs):
pass
def connect(self):
return True
def close(self):
return True
def request(self, method, url, body=None, headers=None):
self.req = webob.Request.blank("/" + url.lstrip("/"))
self.req.method = method
if headers:
self.req.headers = headers
if body:
self.req.body = body
def getresponse(self):
sql_connection = kwargs.get('sql_connection', "sqlite:///")
context_class = 'glance.registry.context.RequestContext'
conf = utils.TestConfigOpts({
'sql_connection': sql_connection,
'verbose': VERBOSE,
'debug': DEBUG
})
api = context.ContextMiddleware(rserver.API(conf),
conf, context_class=context_class)
res = self.req.get_response(api)
# httplib.Response has a read() method...fake it out
def fake_reader():
return res.body
setattr(res, 'read', fake_reader)
return res
def fake_get_connection_type(client):
"""
Returns the proper connection type
"""
DEFAULT_REGISTRY_PORT = 9191
if (client.port == DEFAULT_REGISTRY_PORT and
client.host == '0.0.0.0'):
return FakeRegistryConnection
def fake_image_iter(self):
for i in self.response.app_iter:
yield i
stubs.Set(glance.common.client.BaseClient, 'get_connection_type',
fake_get_connection_type)
stubs.Set(glance.common.client.ImageBodyIterator, '__iter__',
fake_image_iter)