chore: increase unit test coverage to 80%

[LordNoteworthy]

No description provided.

[codecov]

Codecov Report

Patch coverage: 63.63% and project coverage change: +1.47 🎉

Comparison is base (50a78f3) 76.85% compared to head (faa06aa) 78.32%.

❗ Current head faa06aa differs from pull request most recent head e6bc854. Consider uploading reports for the commit e6bc854 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #74      +/-   ##
==========================================
+ Coverage   76.85%   78.32%   +1.47%     
==========================================
  Files          25       25              
  Lines        5629     5605      -24     
==========================================
+ Hits         4326     4390      +64     
+ Misses       1003      920      -83     
+ Partials      300      295       -5     

Impacted Files	Coverage Δ
symbol.go	72.14% <0.00%> (ø)
reloc.go	65.59% <33.33%> (+4.59%)	⬆️
dotnet.go	67.52% <57.14%> (+6.41%)	⬆️
ntheader.go	70.52% <91.66%> (+15.23%)	⬆️
exception.go	89.17% <100.00%> (+10.82%)	⬆️
helper.go	68.13% <100.00%> (ø)

... and 2 files with indirect coverage changes

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