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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.
Missing lots of edge cases as fixed tests: empty strings, one letter names, capitals within names, and probably more I can't think of right now.
Random tests are very weak.