Better integrate old PHPUnit tests in BlackBox

[Baptouuuu]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.38%. Comparing base (ca93840) to head (34f640c).
⚠️ Report is 6 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop      #31   +/-   ##
==========================================
  Coverage      98.38%   98.38%           
  Complexity       220      220           
==========================================
  Files             21       21           
  Lines            806      806           
==========================================
  Hits             793      793           
  Misses            13       13           

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