Add tests

[Andriy Knysh (aknysh)]

what

• Add tests

why

• Increase coverage

[mergify]

Warning

This PR exceeds the recommended limit of 1,000 lines.

Large PRs are difficult to review and may be rejected due to their size.

Please verify that this PR does not address multiple issues.
Consider refactoring it into smaller, more focused PRs to facilitate a smoother review process.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.98%. Comparing base (7a726b2) to head (e9e5c00).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1582      +/-   ##
==========================================
+ Coverage   59.69%   59.98%   +0.29%     
==========================================
  Files         289      289              
  Lines       32781    32781              
==========================================
+ Hits        19568    19665      +97     
+ Misses      11291    11195      -96     
+ Partials     1922     1921       -1     

Flag	Coverage Δ
unittests	59.98% <ø> (+0.29%)	⬆️

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see 11 files with indirect coverage changes

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[Erik Osterman (Cloud Posse) (osterman)]

Duplicated by #1586 which is more extensive