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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.
It's not very clear how the refactor should be done.
These tests are not appropriate for this task.
I understand it's difficult to write valid, appropriate tests for this task. But if you want to write the kata, you'll have to write the tests.
What is it, a "submit button test";-)? Again there's nothing to do...?!