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.
Maybe you should read the error message and the TDD box...
These tests are built in the system for users who want to make/customise their own testcases. You only have to pass the tests in the "Run Suite" section and not the "Run Examples" section (where the TDD is). If you want to make your own tests, you can put them in this box and click the "Run Examples" button, if you want to pass actual tests given by the author (allowing you to submit) then click the "Run Suite" button.