[core] Code cleanup on test files

[siad007]

No description provided.

[codecov]

Codecov Report

Merging #1570 (85a18c3) into main (edb315f) will decrease coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 85a18c3 differs from pull request most recent head 4c0d917. Consider uploading reports for the commit 4c0d917 to get more accurate results

@@             Coverage Diff              @@
##               main    #1570      +/-   ##
============================================
- Coverage     55.98%   55.95%   -0.03%     
  Complexity     6909     6909              
============================================
  Files           354      354              
  Lines         16723    16723              
============================================
- Hits           9362     9357       -5     
- Misses         7361     7366       +5     

Impacted Files	Coverage Δ	Complexity Δ
src/Phing/Io/SourceFileScanner.php	67.64% <0.00%> (-7.36%)	21.00% <0.00%> (ø%)

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