pdolif opened a new pull request, #23893:
URL: https://github.com/apache/pulsar/pull/23893

   Fixes #23882
   
   ### Motivation
   
   The test class uses a `delayedDeliveryTickTimeMillis` of 1024.
   In the flaky test, a message is produced that should be delivered after 2 
seconds. Then, `consumer.receive()` is called with a timeout of 1 second and it 
is asserted that no message is received. Because of the tick time of 1024ms, 
the message may already be delivered after 2s-1024ms=976ms. In this case, the 
test fails because a message is consumed within 1 second.
   
   ### Modifications
   
   Configure the message to be delivered after 3 seconds (instead of 2).
   This ensures that the message is delivered at the earliest after 
3s-1024ms=1976ms. The `consumer.receive()` with 1 second timeout should not 
receive the message anymore.
   
   After that, there is another `consumer.receive()` whose timeout was 
increased from 3 to 4 seconds.
   
   ### Verifying this change
   
   - [x] Make sure that the change passes the CI checks.
   
   ### Does this pull request potentially affect one of the following parts:
   
   <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
   
   *If the box was checked, please highlight the changes*
   
   - [ ] Dependencies (add or upgrade a dependency)
   - [ ] The public API
   - [ ] The schema
   - [ ] The default values of configurations
   - [ ] The threading model
   - [ ] The binary protocol
   - [ ] The REST endpoints
   - [ ] The admin CLI options
   - [ ] The metrics
   - [ ] Anything that affects deployment
   
   ### Documentation
   
   <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
   
   - [ ] `doc` <!-- Your PR contains doc changes. -->
   - [ ] `doc-required` <!-- Your PR changes impact docs and you will update 
later -->
   - [x] `doc-not-needed` <!-- Your PR changes do not impact docs -->
   - [ ] `doc-complete` <!-- Docs have been already added -->
   
   ### Matching PR in forked repository
   
   PR in forked repository: https://github.com/pdolif/pulsar/pull/7
   


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