'Ensure the given filter shows the tweets specified.'

def _test_a_filter(self, filter, should_show_unanswered, should_show_answered, should_show_reply, should_show_hidden):

    content = self._tweet_list(filter)
    assert (('YO_UNANSWERED' in content) == should_show_unanswered)
    assert (('YO_HELP_ME' in content) == should_show_answered)
    assert (('YO_REPLY' in content) == should_show_reply)
    assert (('YO_HIDDEN' in content) == should_show_hidden)
