add mage tests instead of make tests

[kannon92]

Add mage tests instead of make tests.

Verify codecov works correctly in new path.

And also fix any tests that this added.

┆Issue is synchronized with this Jira Task by Unito

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +30.79% 🎉

Comparison is base (ad5bcc7) 16.21% compared to head (dc27631) 47.01%.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2861       +/-   ##
===========================================
+ Coverage   16.21%   47.01%   +30.79%     
===========================================
  Files         160      391      +231     
  Lines       12559    43055    +30496     
  Branches      487      487               
===========================================
+ Hits         2037    20244    +18207     
- Misses      10353    21291    +10938     
- Partials      169     1520     +1351     

Flag	Coverage Δ
unittests	47.01% <ø> (+30.79%)	⬆️

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see 231 files with indirect coverage changes

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[Sharpz7]

LGTM