def test_post_comment(self):
        httpretty.register_uri(
            httpretty.GET, _MESSAGE_URL,
            status=200, body=_MESSAGE_BODY)
        httpretty.register_uri(
            httpretty.POST, _MESSAGE_URL + '/comments',
            status=200, body='OK')

        m = Message(_MESSAGE_URL, {'_managebac_session': 'TOKEN'})
        m.post_comment('Hello World!', {'_managebac_session': 'TOKEN'})

        body = httpretty.last_request().parsed_body
        self.assertEqual(body['post[body]'], ['Hello World!'])
        self.assertIn('_managebac_session=TOKEN',
                      httpretty.last_request().headers['Cookie'],
                      'Sent the token as a cookie')