Add tests with Aqua, ExplicitImports and JET

[devmotion]

The PR adds tests with Aqua, ExplicitImports, and JET, and applies fixes to make them pass.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.02%. Comparing base (1743a8b) to head (f870397).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #507      +/-   ##
==========================================
- Coverage   94.03%   94.02%   -0.02%     
==========================================
  Files          14       14              
  Lines        2902     2897       -5     
==========================================
- Hits         2729     2724       -5     
  Misses        173      173              

Flag	Coverage Δ
unittests	94.02% <100.00%> (-0.02%)	⬇️

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