Test serialization

[Tigrov]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues	#267

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.30%. Comparing base (d01f2d5) to head (4822aac).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #376   +/-   ##
=========================================
  Coverage     87.30%   87.30%           
  Complexity      597      597           
=========================================
  Files            17       17           
  Lines          1410     1410           
=========================================
  Hits           1231     1231           
  Misses          179      179           

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