'Ensure we can sort on a list_display field that is a Model method
(colunn 3 is \'model_year\' in ArticleAdmin)'

def testChangeListSortingModel(self):

    response = self.client.get((u'/test_admin/%s/admin_views/article/' % self.urlbit), {u'o': u'-3'})
    self.assertContentBefore(response, u'Newest    content', u'Middle    content', u'Results    of    sorting    on    Model    method    are    out    of    order.')
    self.assertContentBefore(response, u'Middle    content', u'Oldest    content', u'Results    of    sorting    on    Model    method    are    out    of    order.')
