improve peer test

[xlc]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 5 lines in your changes missing coverage. Please review.

Project coverage is 85.72%. Comparing base (ca4c981) to head (a79dd2d).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
Networking/Sources/Networking/Connection.swift	77.77%	4 Missing ⚠️
Networking/Sources/Networking/Peer.swift	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #288      +/-   ##
==========================================
+ Coverage   85.69%   85.72%   +0.03%     
==========================================
  Files         306      306              
  Lines       24864    24887      +23     
==========================================
+ Hits        21306    21335      +29     
+ Misses       3558     3552       -6     

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