refactor: enhance code coverage

[Tochemey]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 60.27397% with 29 lines in your changes missing coverage. Please review.

Project coverage is 65.10%. Comparing base (ef7f578) to head (7b0925b).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
test/data/testpb/test.pb.go	54.09%	26 Missing and 2 partials ⚠️
cluster/delegate.go	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #28      +/-   ##
==========================================
+ Coverage   62.83%   65.10%   +2.27%     
==========================================
  Files          31       32       +1     
  Lines        1340     1390      +50     
==========================================
+ Hits          842      905      +63     
+ Misses        450      438      -12     
+ Partials       48       47       -1     

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