That seems awfully close to your surgery.. can atty get it rescheduled - I'd hate to see you injure anything while doing the testing so soon
Are they aware that you just had this other surgery?
I'd make sure that they do know that for sure.

I think I saw one being done while I was @ PT 3 yrs ago.

It involved the guy placing pegs in holes, transferring items, overhead tasks and lifting, etc.
but maybe they are more job specific??
I heard that his job was electrician.