Add unit tests for pkg/workflow package

[mahalrs]

partial #316

[codecov-commenter]

Codecov Report

Merging #334 (3396ccf) into main (49631d9) will increase coverage by 0.98%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #334      +/-   ##
==========================================
+ Coverage   38.10%   39.08%   +0.98%     
==========================================
  Files          14       14              
  Lines         811      811              
==========================================
+ Hits          309      317       +8     
+ Misses        491      483       -8     
  Partials       11       11              

Impacted Files	Coverage Δ
pkg/workflow/graph.go	11.94% <100.00%> (+11.94%)	⬆️

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[nitishm]

@mahalrs can we merge this in even though it is partial? We can continue on a new PR for the same issue

[mahalrs]

@mahalrs can we merge this in even though it is partial? We can continue on a new PR for the same issue

Sure, will write rest of the units tests once I'm done with e2e parallel tests.

[jonathan-innis]

LGTM, definitely need more graph_test test cases