'Ensure that a lookup query containing non-fields raises the proper
exception.'

def test_nonfield_lookups(self):

    with self.assertRaises(FieldError):
        Article.objects.filter(headline__blahblah=99)
    with self.assertRaises(FieldError):
        Article.objects.filter(headline__blahblah__exact=99)
    with self.assertRaises(FieldError):
        Article.objects.filter(blahblah=99)
