ADD: pytests to missing funcs

[syedhamidali]

• Closes #xxxx
• Tests added
• Changes are documented in history.md

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.79%. Comparing base (fbbdd5d) to head (70ae29d).
Report is 13 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #228      +/-   ##
==========================================
+ Coverage   92.61%   92.79%   +0.18%     
==========================================
  Files          26       26              
  Lines        4957     4957              
==========================================
+ Hits         4591     4600       +9     
+ Misses        366      357       -9     

Flag	Coverage Δ
notebooktests	78.93% <ø> (ø)
unittests	91.22% <ø> (+0.18%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[kmuehlbauer]

You can add an entry in the history.md before merge. This looks good now!

[syedhamidali]

Related issues #156

[kmuehlbauer]

Thanks for tackling this @syedhamidali. Your efforts are much appreciated!