Fix RJITest RSS encoding and decoding

[MaxDesiatov]

Resolves #15

[codecov]

Codecov Report

Merging #171 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #171   +/-   ##
=======================================
  Coverage   72.87%   72.87%           
=======================================
  Files          43       43           
  Lines        2289     2289           
=======================================
  Hits         1668     1668           
  Misses        621      621           

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