Add unit tests for /pass command

[ryukinix]

Closes #1

[ryukinix]

Codecov Report

Merging #8 into master will increase coverage by 17.15%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master       #8       +/-   ##
===========================================
+ Coverage   76.92%   94.08%   +17.15%     
===========================================
  Files           1        1               
  Lines         169      169               
===========================================
+ Hits          130      159       +29     
+ Misses         39       10       -29     

Flag	Coverage Δ
#unittests	94.08% <ø> (+17.15%)	⬆️

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Impacted Files	Coverage Δ
troll_shield.go	94.08% <0.00%> (+17.15%)	⬆️

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