I want to do some functional tests on my django app. I'm using selenium, tests works but the problem is with static files. The css/js status is not found.
My tests is running on localhost:8081.
Example bootstrap.css:

```
<h1>Not Found</h1><p>The requested URL /static/frontend/bootstrap/3.3.0/css/bootstrap.css was not found on this server.</p>

```

I can't find any information do I have add some extra config for selenium app?

Trackback:

```
Traceback (most recent call last):
  File "/usr/lib/python2.7/wsgiref/handlers.py", line 85, in run
    self.result = application(self.environ, self.start_response)
  File "/home/t/py/django/bid/src/venv/local/lib/python2.7/site-packages/django/test/testcases.py", line 1028, in __call__
    return super(FSFilesHandler, self).__call__(environ, start_response)
  File "/home/t/py/django/bid/src/venv/local/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 187, in __call__
    response = self.get_response(request)
  File "/home/t/py/django/bid/src/venv/local/lib/python2.7/site-packages/django/test/testcases.py", line 1011, in get_response
    return self.serve(request)
  File "/home/t/py/django/bid/src/venv/local/lib/python2.7/site-packages/django/test/testcases.py", line 1023, in serve
    return serve(request, final_rel_path, document_root=self.get_base_dir())
  File "/home/t/py/django/bid/src/venv/local/lib/python2.7/site-packages/django/views/static.py", line 50, in serve
    fullpath = os.path.join(document_root, newpath)
  File "/home/t/py/django/bid/src/venv/lib/python2.7/posixpath.py", line 77, in join
    elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'

```