use golang style test spec organization

[markburns-tembo]

Also bumps to 0.6.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.69%. Comparing base (23c3b17) to head (eaf4b9d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #42   +/-   ##
=======================================
  Coverage   98.68%   98.69%           
=======================================
  Files          33       33           
  Lines         839      840    +1     
=======================================
+ Hits          828      829    +1     
  Misses         11       11           

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