Added tests for src/lib/resolvers/index.ts

[fampiyush]

What kind of change does this PR introduce?

Issue Number:

Fixes #911

Did you add tests for your changes?
Yes

Snapshots/Videos:

If relevant, did you update the documentation?

Summary

Does this PR introduce a breaking change?

Other information

Have you read the contributing guide?
Yes

[codecov-commenter]

Codecov Report

Merging #940 (47cbd3c) into develop (abe3bd9) will increase coverage by 3.07%.
The diff coverage is 100.00%.

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@@             Coverage Diff             @@
##           develop     #940      +/-   ##
===========================================
+ Coverage    84.49%   87.56%   +3.07%     
===========================================
  Files          168      168              
  Lines        10092    10095       +3     
  Branches       927      932       +5     
===========================================
+ Hits          8527     8840     +313     
+ Misses        1565     1255     -310     

Impacted Files	Coverage Δ
src/resolvers/Mutation/createEvent.ts	88.80% <100.00%> (+0.25%)	⬆️
src/resolvers/Mutation/removeOrganizationImage.ts	100.00% <0.00%> (+27.84%)	⬆️
...c/resolvers/Subscription/messageSentToGroupChat.ts	48.38% <0.00%> (+48.38%)	⬆️
.../resolvers/Subscription/messageSentToDirectChat.ts	63.63% <0.00%> (+63.63%)	⬆️
src/resolvers/Subscription/directMessageChat.ts	86.66% <0.00%> (+86.66%)	⬆️
src/resolvers/index.ts	100.00% <0.00%> (+100.00%)	⬆️
src/resolvers/Query/index.ts	100.00% <0.00%> (+100.00%)	⬆️
src/resolvers/Mutation/index.ts	100.00% <0.00%> (+100.00%)	⬆️
src/resolvers/Subscription/index.ts	100.00% <0.00%> (+100.00%)	⬆️

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