I think a coding test is the wrong approach. Typically a coding test is too simple to be meaningful, or too difficult to be practical. Instead I would have a M

I think a coding test is the wrong approach. Typically a coding test is too simple to be meaningful, or too difficult to be practical. Instead I would have a Mock PR in a github style discussion forum. Have it be a contrived example of some things that could be improved or some things that could spark really good discussion. Give the mock PR link to the candidate and ask them to Peer review the code. Make the discussion and comments of the the candidate the basis for which you determine their aptitude. If they have a lot of depth in their critique then you can be relatively confident how they would interact with the team in a real work scenario.