It was the exact opposite for me. Tests worked fine, but I failed the attempt. Then I realized I missed the part about CompanyA.

I'm not sure if that was it, but there was some example tests in the kata, because i did't provide any. And there was not connected with the kata - Generic tests for items.
Can you confirm that? I've added example tests for this kata. Should be fine now

Have edited to exclude the id column. It's a beginner kata, it's designed for people that don't yet know things by heart.