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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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There should now be tests for these :)
Your right, I've changed the description and added a number of Random Tests.
I'm not 100% sure what edge cases I'd have to deal with this though, apart from testing the upper bounds of the maximum value for an Integer I'm not sure what else I should be testing :/
Well spotted, Number.isSafeInteger() should now work for this.
Thanks for this! I've added another Test case for this.