Add more check-keys tests, covering more DBs

[oliver006]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.11%. Comparing base (7c63842) to head (d2fbdc9).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #986   +/-   ##
=======================================
  Coverage   82.11%   82.11%           
=======================================
  Files          18       18           
  Lines        2756     2756           
=======================================
  Hits         2263     2263           
  Misses        401      401           
  Partials       92       92           

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[coveralls]

Pull Request Test Coverage Report for Build 13758060298

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 85.497%

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Totals
Change from base Build 13745567977:	0.0%
Covered Lines:	2364
Relevant Lines:	2765

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💛 - Coveralls