[HDDS-8553] Improve scanner integration tests

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0
• Component/s: Ozone Datanode
• Labels: pull-request-available
• Assignee: Ethan Rose
• Reporter: Ethan Rose
• Created: 05/May/23 17:57
• Updated: 26/Jun/23 15:30
• Resolved: 26/Jun/23 15:30

Description

The current integration tests for the scanner are not very robust. They can be improved in a few ways:
* Separate tests for each scanner type (on demand data scanner, background data scanner, background metadata scanner)

• Test the scanner against every type of container corruption they are designed to detect, instead of just deleting pieces of the container.
• Let the scanners run on their own instead of manually triggering them.

Issue Links

• fixes: HDDS-8894 Unhealthy replica not detected on tampering with container file
• Testing discovered: HDDS-8902 Close open container immediately on ICR of unhealthy replica
• links to: GitHub Pull Request #4936