feat: tests and badge

[aiterekhov]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@8651898). Click here to learn what that means.
Patch has no changes to coverable lines.

❗ Current head c3a8c18 differs from pull request most recent head fb7da54. Consider uploading reports for the commit fb7da54 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##             master      #88   +/-   ##
=========================================
  Coverage          ?   70.57%           
=========================================
  Files             ?       35           
  Lines             ?      401           
  Branches          ?       35           
=========================================
  Hits              ?      283           
  Misses            ?      118           
  Partials          ?        0           

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