Increase Tests Coverage

[asimonok]

Resolves #187

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +17.10 🎉

Comparison is base (77ecaea) 81.06% compared to head (179e45e) 98.17%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #194       +/-   ##
===========================================
+ Coverage   81.06%   98.17%   +17.10%     
===========================================
  Files          27       23        -4     
  Lines         243      219       -24     
  Branches       32       29        -3     
===========================================
+ Hits          197      215       +18     
+ Misses         43        3       -40     
+ Partials        3        1        -2     

Impacted Files	Coverage Δ
src/components/TextPanel/TextPanel.tsx	100.00% <ø> (+13.33%)	⬆️
src/constants/default.ts	100.00% <ø> (ø)
src/constants/tests.ts	100.00% <ø> (ø)
src/components/CustomEditor/CustomEditor.tsx	100.00% <100.00%> (ø)
src/components/CustomEditor/index.ts	100.00% <100.00%> (ø)
src/components/index.ts	100.00% <100.00%> (ø)
src/constants/editor.ts	100.00% <100.00%> (ø)
src/helpers/variable.ts	100.00% <100.00%> (+88.00%)	⬆️

... and 4 files with indirect coverage changes

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[mikhail-vl]

Looks great!