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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.
The random tests generate strings of random length. There's probably no bug (I can't tell for sure, Java is not my forte and I didn't solve the kata in this language). Maybe you misread the log, it just tells you: You should have returned "FSYQR" but your code returned "BMNVBTE".
basicTests - OK
randomTests
expected:<[FSYQR]> but was:<[BMNVBTE]>
moreTests - OK
I solved this on Java.
Why in the randomTests Strings have different lengths ?
Maybe a bug in the testcases;