test(crypto-validation): increase unit tests coverage

[sebastijankuzner]

Summary

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.52%. Comparing base (ac246fe) to head (1a9aa4d).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1254      +/-   ##
===========================================
+ Coverage    53.22%   53.52%   +0.29%     
===========================================
  Files         1125     1128       +3     
  Lines        62737    63125     +388     
  Branches      1726     1796      +70     
===========================================
+ Hits         33393    33785     +392     
+ Misses       29213    29209       -4     
  Partials       131      131              

Flag	Coverage Δ
contracts	98.60% <ø> (?)
packages	53.21% <100.00%> (-0.02%)	⬇️

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