Parsed test spec with 3 sessions

starting permutation: w1_redrive w2_redrive check_queue_count check_dlq_status
step w1_redrive: 
    SELECT (ulak.redrive_message(
        (SELECT id FROM ulak.dlq WHERE endpoint_name = 'iso_dlq_ep' LIMIT 1)
    ) IS NOT NULL) AS redrove;

redrove
-------
t      
(1 row)

step w2_redrive: 
    SELECT (ulak.redrive_message(
        (SELECT id FROM ulak.dlq WHERE endpoint_name = 'iso_dlq_ep' LIMIT 1)
    ) IS NOT NULL) AS redrove;

redrove
-------
t      
(1 row)

step check_queue_count: 
    SELECT count(*) AS queue_messages
    FROM ulak.queue q
    JOIN ulak.endpoints e ON q.endpoint_id = e.id
    WHERE e.name = 'iso_dlq_ep';

queue_messages
--------------
             2
(1 row)

step check_dlq_status: 
    SELECT status, payload::text
    FROM ulak.dlq WHERE endpoint_name = 'iso_dlq_ep';

status  |payload        
--------+---------------
redriven|{"dlq": "test"}
(1 row)