Update unit tests with testing-library/react

[asimonok]

Update unit tests with testing-library/react.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.15 🎉

Comparison is base (b335bc9) 89.47% compared to head (994bae1) 89.62%.

❗ Current head 994bae1 differs from pull request most recent head c1d57ec. Consider uploading reports for the commit c1d57ec to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
+ Coverage   89.47%   89.62%   +0.15%     
==========================================
  Files          10       12       +2     
  Lines         133      135       +2     
  Branches        3        3              
==========================================
+ Hits          119      121       +2     
  Misses         13       13              
  Partials        1        1              

Impacted Files	Coverage Δ
src/constants/datasource.ts	100.00% <ø> (ø)
src/components/ConfigEditor/ConfigEditor.tsx	100.00% <100.00%> (ø)
src/components/QueryEditor/QueryEditor.tsx	100.00% <100.00%> (ø)
src/constants/index.ts	100.00% <100.00%> (ø)
src/constants/tests.ts	100.00% <100.00%> (ø)

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[mikhail-vl]

Looks good!