Loading collection data...
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.
why the filter?
Then try to write tests which also fail. That is part of the kata!
When I click on "Run Tests", it pass
When I click on "Submit", it fail
This comment is hidden because it contains spoiler information about the solution