def test_extdom_plugin(self):
        """Extdom plugin should not return error (32)/'No such object'
            Regression test for https://pagure.io/freeipa/issue/8044
            If there is a timeout during a request to SSSD the extdom plugin
            should not return error 'No such object' and the existing user should
            not be added to negative cache on the client.
            """
        extdom_dn = DN(
            ('cn', 'ipa_extdom_extop'), ('cn', 'plugins'),
            ('cn', 'config')
        )
        client = self.clients[0]
        tasks.backup_file(self.master, paths.SSSD_CONF)
        log_file = '{0}/sssd_{1}.log'.format(paths.VAR_LOG_SSSD_DIR,
                                             client.domain.name)
        logsize = len(client.get_file_contents(log_file))
        res = self.master.run_command(['pidof', 'sssd_be'])
        pid = res.stdout_text.strip()
        test_id = 'id testuser@%s' % self.ad_domain
        client.run_command(test_id)
        conn = self.master.ldap_connect()
        entry = conn.get_entry(extdom_dn)  # pylint: disable=no-member
        orig_extdom_timeout = entry.single_value.get('ipaextdommaxnsstimeout')
        # set the extdom plugin timeout to 1s (1000)
        entry.single_value['ipaextdommaxnsstimeout'] = 1000
        conn.update_entry(entry)  # pylint: disable=no-member
        self.master.run_command(['ipactl', 'restart'])
        with tasks.remote_sssd_config(self.master) as sssd_conf:
            sssd_conf.edit_domain(self.master.domain, 'timeout', '999999')
        remove_cache = 'sss_cache -E'
        self.master.run_command(remove_cache)
        client.run_command(remove_cache)
        try:
            # stop sssd_be, needed to simulate a timeout in the extdom plugin.
            stop_sssdbe = self.master.run_command('kill -STOP %s' % pid)
            client.run_command(test_id)
            error = 'ldap_extended_operation result: No such object(32)'
            sssd_log2 = client.get_file_contents(log_file)[logsize:]
>           assert error.encode() not in sssd_log2
E           assert b'ldap_extended_operation result: No such object(32)' not in b"(Mon Sep  6 14:52:43 2021) [sssd[be[ipa.test]]] [dp_attach_req] (0x0400): DP Request [Subdomains #4]: New request. F...moved.\n(Mon Sep  6 14:53:33 2021) [sssd[be[ipa.test]]] [dp_req_destructor] (0x0400): Number of active DP request: 0\n"
E            +  where b'ldap_extended_operation result: No such object(32)' = <built-in method encode of str object at 0x7f7664cc2780>()
E            +    where <built-in method encode of str object at 0x7f7664cc2780> = 'ldap_extended_operation result: No such object(32)'.encode
test_integration/test_trust.py:301: AssertionError