Fix templatetag tests

tests/utils.py

@@ -1,14 +1,7 @@
 from django.template import engines
-from django.contrib.sessions.middleware import SessionMiddleware
 
 
 def render_template(value, **context):
     template = engines['django'].from_string(value)
     request = context.pop('request', None)
     return template.render(context, request)
-
-
-def add_session_to_request(request):
-    middleware = SessionMiddleware()
-    middleware.process_request(request)
-    request.session.save()