Auto Renewable Subscription - What happens at the end of the Subscription time

So I am about to integrate ‘Auto Renewable Subscription’ In-App purchases.

Any one know what happens when the subscription period ends?

Like will a store event be fired when the user either opts out or opts in of renewing the subscription? [import]uid: 64174 topic_id: 24665 reply_id: 324665[/import]

And how do we test renewable subscriptions? [import]uid: 64174 topic_id: 24665 reply_id: 99921[/import]