Set default connection settings for tests

[Tigrov]

Q	A
Is bugfix?	✔️/❌
New feature?	❌
Breaks BC?	❌
Fixed issues

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.73%. Comparing base (f36679f) to head (8c2f4fa).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #375   +/-   ##
=========================================
  Coverage     98.73%   98.73%           
  Complexity      173      173           
=========================================
  Files            16       16           
  Lines           552      552           
=========================================
  Hits            545      545           
  Misses            7        7           

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