Added tests for additional data types in SegmentPreProcessorTest.java

[aadilkhalifa]

Related to #12501

Added tests for ColumnMinMax calculation in SegmentPreProcessorTest.java for all supported data types.

[aadilkhalifa]

@Jackie-Jiang Can you please have a look at this?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.55%. Comparing base (59551e4) to head (b93ca16).
Report is 211 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #12755      +/-   ##
============================================
- Coverage     61.75%   61.55%   -0.20%     
+ Complexity      207      198       -9     
============================================
  Files          2436     2462      +26     
  Lines        133233   134588    +1355     
  Branches      20636    20838     +202     
============================================
+ Hits          82274    82845     +571     
- Misses        44911    45550     +639     
- Partials       6048     6193     +145     

Flag	Coverage Δ
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integration	<0.01% <ø> (-0.01%)	⬇️
integration1	<0.01% <ø> (-0.01%)	⬇️
integration2	0.00% <ø> (ø)
java-11	61.52% <ø> (-0.19%)	⬇️
java-21	61.42% <ø> (-0.20%)	⬇️
skip-bytebuffers-false	61.54% <ø> (-0.21%)	⬇️
skip-bytebuffers-true	61.40% <ø> (+33.67%)	⬆️
temurin	61.55% <ø> (-0.20%)	⬇️
unittests	61.55% <ø> (-0.20%)	⬇️
unittests1	46.13% <ø> (-0.76%)	⬇️
unittests2	27.95% <ø> (+0.22%)	⬆️

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[Jackie-Jiang]

This is a good start!

Besides default column generation, we also want to cover:

• Derived column generation
• Forward index conversion/generation
• MinMax value generation
• Other index generation

They can be added in separate PRs