add pool controller specs

[cfaur09]

Proposed Changes

• Add new tests for pool.controller.ts

How to test

• npm run test -> all tests should pass

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.96%. Comparing base (0ad8e13) to head (2d7cd45).

❗ Current head 2d7cd45 differs from pull request most recent head 6d6d294. Consider uploading reports for the commit 6d6d294 to get more accurate results

Additional details and impacted files

@@               Coverage Diff               @@
##           development    #1213      +/-   ##
===============================================
+ Coverage        45.92%   45.96%   +0.03%     
===============================================
  Files              591      591              
  Lines            15568    15568              
  Branches          1641     1641              
===============================================
+ Hits              7150     7156       +6     
+ Misses            6837     6831       -6     
  Partials          1581     1581              

Flag	Coverage Δ
unittests	45.96% <ø> (+0.03%)	⬆️

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