Add test for large iteration count

[coditva]

Add a test that check if run creation is successful for large iteration count. Not checking if iterations are run because it'll take a looong time.

[codecov]

Codecov Report

Merging #956 into develop will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #956      +/-   ##
===========================================
+ Coverage    90.83%   90.83%   +<.01%     
===========================================
  Files           42       42              
  Lines         2378     2379       +1     
  Branches       670      671       +1     
===========================================
+ Hits          2160     2161       +1     
  Misses         218      218

Flag	Coverage Δ
#integration	79.94% <100%> (-0.04%)	⬇️
#legacy	58.3% <100%> (+0.01%)	⬆️
#unit	47.7% <100%> (+0.02%)	⬆️

Impacted Files	Coverage Δ
lib/requester/core.js	91.57% <100%> (+0.04%)	⬆️

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[codenirvana]

This is should be a unit test.
Assert on:

• run.state.data
• run.options.iterationCount

[coditva]

Force pushed to restart Travis build.