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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Because I authored the kata and explicitly chose not to add sample tests, which to me means that this is not an issue, but a suggestion.
imo, if such changes are required, it would make sense to depricate any kata that have already gone through the beta process of being reviewed and approved, and have been live for several years. That way if original authors or the community would like to make such changes, they can release new kata or new kata versions.
In any case, while I disagree that this kata should have sample test cases, I'm in no position to prevent someone else from adding them.
Yeah, they don't have sample tests. When I authored the kata almost 10 years ago, I didn't feel they should have sample tests at this level. Feel free to write them yourself or remove the kata if you find that to be a genuine issue.
All languages except Python lack sample tests.
Interesting observation!
Which language is this for?
The test isn't working. If you test the correct answer it returns false, if you submit it, it is accepted.