some refacto, comments, and added tests

[bytemare]

No description provided.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (1e4cb80) 32.73% compared to head (75478ad) 87.50%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
internal/xof.go	69.23%	2 Missing and 2 partials ⚠️
h2f.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #14       +/-   ##
===========================================
+ Coverage   32.73%   87.50%   +54.76%     
===========================================
  Files           8        8               
  Lines         223      224        +1     
===========================================
+ Hits           73      196      +123     
+ Misses        146       24      -122     
  Partials        4        4               

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[sonarcloud]

Quality Gate passed

The SonarCloud Quality Gate passed, but some issues were introduced.

11 New issues
0 Security Hotspots
95.9% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud