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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.
1º The test seems to be broken, as you can pass this kata with whatever you return
2º More test cases should be provided.
Duplicate:
https://www.codewars.com/kata/your-order-please
You should also think about showing an example in the description and how it should work. Then add that example as a test in the example test fixture.
Your tests do not work. To compare two values, you need to use
Test.assertEquals(got_value, expected_value, [message]);.