Add more UT for error cases simulated with sisl::flip

[koujl]

Enhance existing class-level UT:

• Add test for handling corrupted message
• Add verification for chunk release of sealed shards

Introduce sisl::flip and simulate error cases in dynamic test

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 27.27273% with 32 lines in your changes missing coverage. Please review.

Project coverage is 64.60%. Comparing base (55efbde) to head (3d84fb9).
Report is 3 commits behind head on baseline_resync.

Files with missing lines	Patch %	Lines
...lib/homestore_backend/snapshot_receive_handler.cpp	0.00%	14 Missing and 3 partials ⚠️
src/lib/homestore_backend/heap_chunk_selector.cpp	57.14%	4 Missing and 2 partials ⚠️
src/lib/homestore_backend/pg_blob_iterator.cpp	28.57%	2 Missing and 3 partials ⚠️
...ib/homestore_backend/replication_state_machine.cpp	33.33%	3 Missing and 1 partial ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           baseline_resync     #243      +/-   ##
===================================================
- Coverage            65.52%   64.60%   -0.92%     
===================================================
  Files                   33       33              
  Lines                 2271     2407     +136     
  Branches               254      275      +21     
===================================================
+ Hits                  1488     1555      +67     
- Misses                 659      709      +50     
- Partials               124      143      +19     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[yuwmao]

Why don't test on last batch?

[koujl]

Thanks, for simplicity I'm not simulating resending the corrupted batch here. Instead, I'm just dropping and ignoring it - and dropping the last batch will cause issues to the following process.

I've added more comments here to explain the reason in the latest force-push.

[JacksonYao287]

LGTM

[yuwmao]

LGTM