Easy to read
Well, fixed tests already have '-2*2' and 1--5/2' (do you mean basic tests?)... More than fixed tests, I would say:
aah! what an eye opener!
Thank you , I understand NOW
This comment is hidden because it contains spoiler information about the solution
Learned something New!
what is called this method?
expected [ Array(43) ] to deeply equal [ Array(45) ]
Should that work? It's not adding anything including that "injection check"
I think the algorithm would be more effective (and easier to implement), if it wouldn't prioritize sequences of identical numbers over consecutive ones ;)
please move this task to a higher level of difficulty
6 seems fair to me. There are definitely misranked katas though, so the description itself is always the better indication of difficulty. The rank is just the bounty!
Different ways of representing the problem leads to different ways of having to manipulate that representation.
This problem is representable with pen and paper, so that is a great place to start.
edit: Admittedly my approach to this problem looks nothing like other 6kyu kata.
is this really 6kyu? I really got stuck