Test/backend/coverage database functions

[waveyboym]

Description

Just tests✨🧪

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Tests

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• A numerous amount of tests were written with the aim of increasing codecov📋

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.59%. Comparing base (52f7d13) to head (33f6c2a).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #246      +/-   ##
===========================================
+ Coverage    63.47%   66.59%   +3.12%     
===========================================
  Files           21       21              
  Lines         1963     1955       -8     
===========================================
+ Hits          1246     1302      +56     
+ Misses         672      611      -61     
+ Partials        45       42       -3     

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