test: add tests for nested object search

[thundermiracle]

No description provided.

[codecov-commenter]

Codecov Report

Merging #45 (14bde5f) into master (8a58d44) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #45   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines          148       154    +6     
  Branches        17        23    +6     
=========================================
+ Hits           148       154    +6     

Impacted Files	Coverage Δ
src/lib/SearchType.ts	100.00% <ø> (ø)
src/filterData.ts	100.00% <100.00%> (ø)
src/filters/equal.ts	100.00% <100.00%> (ø)
src/filters/filtersMap.ts	100.00% <100.00%> (ø)
src/filters/greater.ts	100.00% <100.00%> (ø)
src/filters/greaterOrEqual.ts	100.00% <100.00%> (ø)
src/filters/less.ts	100.00% <100.00%> (ø)
src/filters/lessOrEqual.ts	100.00% <100.00%> (ø)
src/filters/like.ts	100.00% <100.00%> (ø)
src/filters/notEqual.ts	100.00% <100.00%> (ø)
... and 12 more

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