chore: add cmd tests

[freak12techno]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.

Project coverage is 50.14%. Comparing base (6267918) to head (6461b79).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/app.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #77      +/-   ##
==========================================
+ Coverage   49.05%   50.14%   +1.09%     
==========================================
  Files          78       79       +1     
  Lines        4016     4014       -2     
==========================================
+ Hits         1970     2013      +43     
+ Misses       2040     1994      -46     
- Partials        6        7       +1     

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