Fixing CI issues and adding tests for the list of tools

[tishun]

Follow up to #43 and #44

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #46   +/-   ##
=======================================
  Coverage        ?   87.23%           
=======================================
  Files           ?       16           
  Lines           ?      611           
  Branches        ?        0           
=======================================
  Hits            ?      533           
  Misses          ?       78           
  Partials        ?        0           

Flag	Coverage Δ
unittests	87.23% <100.00%> (?)

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