owiaxujylentrklctozmymu -> 23 letters

11 + 23 > 23 + 10

The test is really this one: testing(longest_consec(["wlwsasphmxx","owiaxujylentrklctozmymu","wpgozvxxiu"], 2), "wlwsasphmxxowiaxujylentrklctozmymu")
Where did you get that other one?

You can see the answer is right, because:

wlwsasphmxx -> 11 letters

wpgozvxxiu -> 10 letters

No problem with the test.

Thanks omegahm.

I have submitted and republished a fixed version. The old one didn't check, if the characters were outside of A-Z and a-z.

Other versions of this kata haven't that problem, that's why you should mention which one to check, so we don't need to guess or check all. I can confirm the problem exists in Ruby. Other languages use a=1 to z=26, that should be the behaviour of Ruby version too.

When you have a problem with a kata that has several languages, remember to state which one you're having the problem with.