feat: add unit tests

[l1b0k]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.91%. Comparing base (cf47931) to head (03605f7).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #960      +/-   ##
==========================================
+ Coverage   61.41%   63.91%   +2.49%     
==========================================
  Files         133      133              
  Lines       16635    16628       -7     
==========================================
+ Hits        10217    10627     +410     
+ Misses       5209     4772     -437     
- Partials     1209     1229      +20     

Flag	Coverage Δ
unittests	63.91% <ø> (+2.49%)	⬆️

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