Add tests for ChallengeListCtrl.test.js

[Harshit28j]

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 69.41%. Comparing base (96968d6) to head (e915cda). Report is 1110 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4373      +/-   ##
==========================================
- Coverage   72.93%   69.41%   -3.52%     
==========================================
  Files          83       20      -63     
  Lines        5368     3574    -1794     
==========================================
- Hits         3915     2481    -1434     
+ Misses       1453     1093     -360     

see 65 files with indirect coverage changes

see 65 files with indirect coverage changes

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