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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.
Same for the JS tests, ran it multiple times without issues.
what prompts you to say? the Ruby tests look ok. what seems to be the problem?
seems like the example and tests are totally wrong