'mail_admins/mail_managers doesn\'t connect to the mail server
if there are no recipients (#9383)'

@override_settings(ADMINS=[], MANAGERS=[])
def test_empty_admins(self):

    mail_admins('hi', 'there')
    self.assertEqual(self.get_mailbox_content(), [])
    mail_managers('hi', 'there')
    self.assertEqual(self.get_mailbox_content(), [])
