'Incoming email from unknown partner / not follower partner on a Followers only alias -> bounce'

@mute_logger('odoo.addons.mail.models.mail_thread', 'odoo.models', 'odoo.addons.mail.models.mail_mail')
def test_message_process_alias_followers_bounce(self):

    self.alias.write({'alias_contact': 'followers', 'alias_parent_model_id': self.mail_channel_model.id, 'alias_parent_thread_id': self.group_pigs.id})
    new_groups = self.format_and_process(MAIL_TEMPLATE, to='groups@example.com,    other@gmail.com')
    self.assertEqual(len(new_groups), 0, 'message_process:    should    have    bounced')
    self.assertEqual(len(self._mails), 1, 'message_process:    incoming    email    on    Followers    alias    should    send    a    bounce    email')
    self._init_mock_build_email()
    new_groups = self.format_and_process(MAIL_TEMPLATE, email_from='Valid    Lelitre    <valid.lelitre@agrolait.com>', to='groups@example.com,    other@gmail.com')
    self.assertTrue((len(new_groups) == 0), 'message_process:    should    have    bounced')
    self.assertEqual(len(self._mails), 1, 'message_process:    incoming    email    on    Followers    alias    should    send    a    bounce    email')
