Thanks for the suggestion! I'll look into it and see if I can give it a shot.

Hi both,
I have fixed the issue that you discovered Voile. Thank you for pointing it out! Also thank you Donald for offering your help :)

Hey guys, just working on this and came across using Test.callCount(methodName) → Integer , would this be helpful in my test cases and if so, how can i implement it correctly?

Hey! Is there a way that I can use this to check that the .reduce() method has been used in my Kata? I'm kind of new to this so am feeling a bit lost! Any help much appreciated.

Thanks for the feedback, the kata welcomes contributions and I didn't know how to check for use of .reduce but would love to know! Please feel free to add any changes.

Thanks for pointing out this issue! Have edited this.