Proof of concept for writing more idiomatic TAP tests

[jeltz]

This tries to not clean anything up outside of making the test more idiomatic TAP to test how this works out.

Things I want to check:

• Do we need some helpers for assertions when running SQL queries?
• Does anyone have any suggestion for how to improve readability?
• Is this better than what we have?

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.61%. Comparing base (868fe72) to head (03514cb).
⚠️ Report is 2 commits behind head on main.

❌ Your project status has failed because the head coverage (76.26%) is below the target coverage (90.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #588      +/-   ##
==========================================
+ Coverage   57.59%   57.61%   +0.01%     
==========================================
  Files          68       68              
  Lines       10781    10781              
  Branches     2659     2659              
==========================================
+ Hits         6209     6211       +2     
+ Misses       3292     3291       -1     
+ Partials     1280     1279       -1     

Components	Coverage Δ
access	81.35% <ø> (ø)
bin	63.76% <ø> (ø)
catalog	78.34% <ø> (ø)
common	88.23% <ø> (ø)
encryption	57.02% <ø> (ø)
keyring	65.55% <ø> (ø)
src	87.33% <ø> (ø)
smgr	89.54% <ø> (+0.90%)	⬆️

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