rabbitmq - chore: test cleanup

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing and Code of Conduct guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
rabbitmq - chore: test cleanup

[gemini-code-assist]

Code Review

This pull request introduces a guard to prevent multiple task handlers from acknowledging or rejecting the same AMQP message if it has already been handled. By checking the amqpHandled state within the ack and reject methods, the implementation avoids duplicate side effects such as multiple tasks being sent to the Dead Letter Queue. Additionally, the edge case tests were refactored to use the public dequeue method and now include assertions to verify that messages are only sent to the queue once. I have no feedback to provide.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve attempt-count cleanup after AMQP is handled

processTask increments _attemptCounts before handler execution, but with this new isAmqpHandled() early return in ctx.ack, any later handler on the same message will skip cleanup once an earlier handler has already acked/nacked. In multi-handler queues, that leaves a new _attemptCounts entry behind for an already-completed task, causing unbounded map growth over time (and stale retry metadata for that task id). The guard should avoid duplicate AMQP side effects without bypassing local bookkeeping cleanup.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (ccf9629) to head (15c86b9).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

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  Coverage   100.00%   100.00%           
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  Files           10        10           
  Lines         1264      1265    +1     
  Branches       230       230           
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+ Hits          1264      1265    +1     

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