  
          search_integer = 10
          request = factory.get('/?integer=%s' % search_integer)
          response = view(request).render()
          self.assertEquals(response.status_code, status.HTTP_400_BAD_REQUEST) 
</s> remove     # TODO Return 400 filter paramater requested that hasn't been configured.
    def test_bad_request(self):
 </s> add     def test_unknown_filter(self): </s> remove         GET requests with filters that aren't configured should return 400.
 </s> add         GET requests with filters that aren't configured should return 200.
  
          search_integer = 10
          request = factory.get('/?integer=%s' % search_integer)
          response = view(request).render()

keep keep keep keep replace
 Check for 200 status when unknown filter requested.

This changes the test from the failing checking for status 400. See
discussion here:

https://github.com/tomchristie/django-rest-framework/pull/169#issuecomment-9240480 
rest_framework/tests/filterset.py