'``UserenaSignup.activation_key_expired()`` is ``True`` when the
``activation_key_created`` is more days ago than defined in
``USERENA_ACTIVATION_DAYS``.'

def test_activation_expired_account(self):

    user = UserenaSignup.objects.create_user(**self.user_info)
    user.date_joined -= datetime.timedelta(days=(userena_settings.USERENA_ACTIVATION_DAYS + 1))
    user.save()
    user = User.objects.get(username='alice')
    self.assertTrue(user.userena_signup.activation_key_expired())
