How to simulate scenario where messages will get expired in AQ?

Since MAX_RETRIES = 0 for the Queue, any failed dequeue should result in status = 3(Expired). But, how can we simulate this so that messages gets expired ?

I tried with a ROLLBACK in the De-Queue block, but no joy.

Documents  referrred:

1. Advanced Queueing MSG_STATE Values And Their Interpretation (Doc ID 102330.1)

2. Exception handling with expiration, max_retries and retry_delay (Doc ID 233102.1)

Codes below:

BEGIN
  SYS.DBMS_AQADM.CREATE_QUEUE_TABLE
  (
    QUEUE_TABLE           =>  'TESTQ_TAB'
   ,QUEUE_PAYLOAD_TYPE    =>  'SYS.AQ$_JMS_TEXT_MESSAGE'
   ,COMPATIBLE            =>  '10.0.0'
   ,SORT_LIST             =>  'ENQ_TIME'
   ,MULTIPLE_CONSUMERS    =>  FALSE
   ,MESSAGE_GROUPING      =>  0
   ,SECURE                =>  FALSE
  );
End;
/

-- Create Q with MAX_RETRIES = 0