add unit tests for pinot-jdbc-client

[sullis]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.16%. Comparing base (59551e4) to head (3febe3b).
Report is 439 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #13137      +/-   ##
============================================
+ Coverage     61.75%   62.16%   +0.41%     
+ Complexity      207      198       -9     
============================================
  Files          2436     2515      +79     
  Lines        133233   137859    +4626     
  Branches      20636    21335     +699     
============================================
+ Hits          82274    85702    +3428     
- Misses        44911    45780     +869     
- Partials       6048     6377     +329     

Flag	Coverage Δ
custom-integration1	<0.01% <ø> (-0.01%)	⬇️
integration	<0.01% <ø> (-0.01%)	⬇️
integration1	<0.01% <ø> (-0.01%)	⬇️
integration2	0.00% <ø> (ø)
java-11	62.12% <ø> (+0.41%)	⬆️
java-21	62.04% <ø> (+0.41%)	⬆️
skip-bytebuffers-false	62.15% <ø> (+0.40%)	⬆️
skip-bytebuffers-true	62.01% <ø> (+34.28%)	⬆️
temurin	62.16% <ø> (+0.41%)	⬆️
unittests	62.16% <ø> (+0.41%)	⬆️
unittests1	46.74% <ø> (-0.15%)	⬇️
unittests2	27.79% <ø> (+0.06%)	⬆️

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