Testing Island Loop Vent

[Makemenuconfig]

Hi,
I am remodeling my kitchen which involves adding an island with a sink. The building department requires a loop vent. I believe I have a good grasp of how to do that, my question is on testing it for inspection. The plumbing must come up into the bottom of the cabinet (no room behind cabinet).

My preference would be to leave two stubs coming out of the floor with test plugs, after drywall and cabinet install I would glue up all of the above-floor fittings (cleanout, san-tee, and loop at top). This would allow me to drop the cabinet overtop of the pipes with clean tidy holes. If I glue it all up now, it will require me to hog out a big hole in the bottom of the cabinet.

However of course the fittings inside of the cabinet would never be tested doing it this way. I can't really tell if what I want to do is against standard practice, do you think an inspector would fail this?

 

[Breplum]

Your plan to stub up and drop the cabinet onto the stubs is a very normal practice. In 50 years I've never had an inspector request testing when adding the inside-cabinet piping. But, of course, being a pro, I have high reliability/skill set and not as likely to have a leak.