[TASK] add unit-tests for parser functions

[yeldiRium]

This adds some tests for parser functions. I will update this pull request as I add more tests. Feel free to review; If you do I will merge whatever is accepted and open a new PR for the next tests.

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This change is 

[codecov[bot]]

Codecov Report

Merging #100 into develop will increase coverage by 6.96%. The diff coverage is 94.54%.

@@            Coverage Diff             @@
##           develop    #100      +/-   ##
==========================================
+ Coverage     0.21%   7.18%   +6.96%     
==========================================
  Files           56      56              
  Lines         1364    1309      -55     
  Branches       111     136      +25     
==========================================
+ Hits             3      94      +91     
+ Misses        1250    1104     -146     
  Partials       111     111

Impacted Files	Coverage Δ
frontend/src/api/Errors/index.js	20% <ø> (+20%)	:arrow_up:
frontend/src/api/Util/Parse.js	61.38% <94.54%> (+61.38%)	:arrow_up:
frontend/src/model/OwnedResource.js	0% <0%> (ø)	:arrow_up:
frontend/src/utility/functional.js	0% <0%> (ø)	:arrow_up:
...d/src/model/SurveyBase/Challenge/EMailBlacklist.js	0% <0%> (ø)	:arrow_up:
...ontend/src/model/Submission/SubmissionDimension.js	0% <0%> (ø)	:arrow_up:
...d/src/model/SurveyBase/Challenge/EMailWhitelist.js	0% <0%> (ø)	:arrow_up:
frontend/src/model/TrackerEntry.js	0% <0%> (ø)	:arrow_up:
frontend/src/model/SurveyBase/Config/Range.js	0% <0%> (ø)	:arrow_up:
frontend/src/model/SurveyBase/Dimension.js	0% <0%> (ø)	:arrow_up:
... and 16 more

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