Testing iPhone in-app purchases in ad hoc distribution mode

My iphone application has in-app purchases and those have been tested using the iTunes Connect test user account. I'm now distributing it via ad-hoc distribution to beta testers. Is there any way to make the purchases "live" so that they can test them with their real iTunes accounts and not have to use the test account? I'd clearly like to test this before formally submitting it to the iTunes store

Can I test in app purchase in TestFlight?

you can test in-app purchase with test account. then create an account for testing your in app purchase. when test in app purchase try to logout from app store which uses your real account. then it will ask for itunes account while in testing in app purchase then enter your test account credentials.

How do I distribute an Iphone Ad Hoc app?

In the sidebar, click Profiles. Then, next to the heading Profiles, click the + button to create a new provisioning profile. Under Distribution, select Ad Hoc. Click Continue.

I think they only run in sandbox mode via ad-hoc. You can't test it, but it should all work if it works through the test account.