test(e2e): add helper functions to handle promotion errors and configs

[hairyhum]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.97%. Comparing base (260e519) to head (c8a301c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7217   +/-   ##
=======================================
  Coverage   64.97%   64.97%           
=======================================
  Files         511      511           
  Lines       38419    38419           
=======================================
  Hits        24964    24964           
  Misses      13455    13455           

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