Korzystam z podstawowego funkcjonalnego testu sieciowego ze sterownikiem Selenium i zauważam ten błąd w dwóch moich funkcjonalnych testach internetowych. Wszystkie przypadki testowe przechodzą na końcu, ale dostaję to w konsoli:

Exception happened during processing of request from ('127.0.0.1', 1169)
    data = self._sock.recv(self._rbufsize)
error: [Errno 10054] An existing connection was forcibly closed by the remote host
Traceback (most recent call last):
  File "C:\dev\django-projects\barbwire\venv\lib\site-packages\django\test\testcases.py", line 981, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Python27\Lib\SocketServer.py", line 310, in process_request
    self.finish_request(request, client_address)
  File "C:\Python27\Lib\SocketServer.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\dev\django-projects\barbwire\venv\lib\site-packages\django\core\servers\basehttp.py", line 139, in __init__
    super(WSGIRequestHandler, self).__init__(*args, **kwargs)
  File "C:\Python27\Lib\SocketServer.py", line 638, in __init__
    self.handle()
  File "C:\Python27\Lib\wsgiref\simple_server.py", line 116, in handle
    self.raw_requestline = self.rfile.readline()
  File "C:\Python27\Lib\socket.py", line 447, in readline
    data = self._sock.recv(self._rbufsize)
error: [Errno 10054] An existing connection was forcibly closed by the remote host
Traceback (most recent call last):
  File "C:\dev\django-projects\barbwire\venv\lib\site-packages\django\test\testcases.py", line 981, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Python27\Lib\SocketServer.py", line 310, in process_request
    self.finish_request(request, client_address)
  File "C:\Python27\Lib\SocketServer.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\dev\django-projects\barbwire\venv\lib\site-packages\django\core\servers\basehttp.py", line 139, in __init__
    super(WSGIRequestHandler, self).__init__(*args, **kwargs)
  File "C:\Python27\Lib\SocketServer.py", line 638, in __init__
    self.handle()
  File "C:\Python27\Lib\wsgiref\simple_server.py", line 116, in handle
    self.raw_requestline = self.rfile.readline()
  File "C:\Python27\Lib\socket.py", line 447, in readline
    data = self._sock.recv(self._rbufsize)
error: [Errno 10054] An existing connection was forcibly closed by the remote host
----------------------------------------
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 1170)
----------------------------------------
Destroying test database for alias 'default'...

Oto przykład jednego z przypadków testowych:

def test_can_join_main_site(self):
    self.browser.get(self.live_server_url)
    self.browser.find_element_by_link_text('Register').click()
    time.sleep(5)
    self.browser.find_element_by_name('submit').click()
    time.sleep(5)

Działa do zakończenia, ale zrzuca powyższy wyjątek. Pomysł polega na przetestowaniu prostej strony rejestracji. Po kliknięciu przycisku przesyłania strona wyświetla się ponownie i monituje użytkownika o wypełnienie dodatkowych pól formularza. Zgodnie z oczekiwaniami i wszystko wydaje się działać poprawnie, ale dlaczego błędy? Czy czegoś mi brakuje?