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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.
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add
groupfunction to group fixed and random tests separatelyput the reference solution inside the group function and not in global scope
No random tests
rather there: https://gitter.im/Codewars/codewars.com/kata-authoring-help