def new_mock_item_session():
args = argparse.Namespace(directory_prefix='/tmp/')
app_session = AppSession(None, args, None)
url_record = new_mock_url_record()
item_session = ItemSession(app_session, url_record)
item_session.request = BaseRequest()
item_session.request.url = 'http://example.com'
return item_session
