"@first hi there @marcink here's my email marcin@email.com "

            "@lukaszb check @one_more22 it pls @ ttwelve @D[] @one@two@three "

            "@MARCIN    @maRCiN @2one_more22 @john please see this http://org.pl "

            "@marian.user just do it @marco-polo and next extract @marco_polo "

            "user.dot  hej ! not-needed maril@domain.org"

        )

        s = sorted([

        'first', 'marcink', 'lukaszb', 'one_more22', 'MARCIN', 'maRCiN', 'john',

        'marian.user', 'marco-polo', 'marco_polo'

        ], key=lambda k: k.lower())

        self.assertEqual(s, extract_mentioned_users(sample))

    def test_age(self):

        import calendar

        from rhodecode.lib.utils2 import age

        n = datetime.datetime.now()

        delt = lambda *args, **kwargs: datetime.timedelta(*args, **kwargs)

        self.assertEqual(age(n), u'just now')

        self.assertEqual(age(n - delt(seconds=1)), u'1 second ago')

        self.assertEqual(age(n - delt(seconds=60 * 2)), u'2 minutes ago')

        self.assertEqual(age(n - delt(hours=1)), u'1 hour ago')

        self.assertEqual(age(n - delt(hours=24)), u'1 day ago')

        self.assertEqual(age(n - delt(hours=24 * 5)), u'5 days ago')

        self.assertEqual(age(n - delt(hours=24 * (calendar.mdays[n.month - 1] + 2))),

                         u'1 month and 2 days ago')

        self.assertEqual(age(n - delt(hours=24 * 400)), u'1 year and 1 month ago')

    def test_age_in_future(self):

        import calendar

        from rhodecode.lib.utils2 import age

        n = datetime.datetime.now()

        delt = lambda *args, **kwargs: datetime.timedelta(*args, **kwargs)

        self.assertEqual(age(n), u'just now')

        self.assertEqual(age(n + delt(seconds=1)), u'in 1 second')

        self.assertEqual(age(n + delt(seconds=60 * 2)), u'in 2 minutes')

        self.assertEqual(age(n + delt(hours=1)), u'in 1 hour')

        self.assertEqual(age(n + delt(hours=24)), u'in 1 day')

        self.assertEqual(age(n + delt(hours=24 * 5)), u'in 5 days')

                         u'in 1 month and 1 day')

        self.assertEqual(age(n + delt(hours=24 * 400)), u'in 1 year and 1 month')

    def test_tag_exctrator(self):

        sample = (

            "hello pta[tag] gog [[]] [[] sda ero[or]d [me =>>< sa]"

            "[requires] [stale] [see<>=>] [see => http://url.com]"

            "[requires => url] [lang => python] [just a tag]"

            "[,d] [ => ULR ] [obsolete] [desc]]"

        )

        from rhodecode.lib.helpers import desc_stylize

        res = desc_stylize(sample)

        self.assertTrue('<div class="metatag" tag="tag">tag</div>' in res)

        self.assertTrue('<div class="metatag" tag="obsolete">obsolete</div>' in res)

        self.assertTrue('<div class="metatag" tag="stale">stale</div>' in res)

        self.assertTrue('<div class="metatag" tag="lang">python</div>' in res)

        self.assertTrue('<div class="metatag" tag="requires">requires =&gt; <a href="/url">url</a></div>' in res)

        self.assertTrue('<div class="metatag" tag="tag">tag</div>' in res)

    def test_alternative_gravatar(self):

        from rhodecode.lib.helpers import gravatar_url

        _md5 = lambda s: hashlib.md5(s).hexdigest()

        def fake_conf(**kwargs):