test(core-state): transfer vote balance tests

[rainydio]

Summary

Added transfer vote balance tests.

Checklist

• Tests
• Ready to be merged

[codecov-io]

Codecov Report

Merging #4274 (cac9c41) into develop (f9c704e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           develop   #4274   +/-   ##
=======================================
  Coverage     9.71%   9.71%           
=======================================
  Files          728     728           
  Lines        17963   17963           
  Branches      2202    2202           
=======================================
  Hits          1745    1745           
  Misses       16123   16123           
  Partials        95      95           

Flag	Coverage Δ
integration	9.71% <ø> (ø)

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