feat(7652): added stringsAsFactors to test 2365.2

[manmita]

Closes #7652

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.02%. Comparing base (67e7840) to head (e0ac167).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7655   +/-   ##
=======================================
  Coverage   99.02%   99.02%           
=======================================
  Files          87       87           
  Lines       16897    16897           
=======================================
  Hits        16733    16733           
  Misses        164      164           

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[manmita]

@aitap Please let me know if we should add a note to news.md in this case as its not a feature or fix, just a test fix.

[manmita]

I have tested with R 3.5.0, the tests pass now

[aitap]

Thank you!