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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.
Empty database seems like a valid edge case, but is not tested, explicitly not even in Python random tests.
I'd suggest adding tests with that. Description might mention it, but it doesn't even seem necessary.
In Python, mutable default should be avoided.
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JS: Node v12 should be used along with its appropiate assertion tools (Mocha + Chai).
Refer to this and this
No random tests.
needs random test cases.
I passed 4 testcase and no more testcase appear, but system post
Nope! Try again.Why?Are the delimiters guaranteed to be 1 character long?