How to test Push Notification is working in my application

I tried all 3 of the above suggestions with no success. In case someone else is ends up here looking for a solution to this, I found this and it works great:

Pusher https://github.com/noodlewerk/NWPusher

Very cool guide is posted here: Programming Apple Push Notification Services

And an application named PushMeBaby Mac Os App which you can download and use for sending push-notifications to your devices from a Mac.

APNS will send the push notification to your device as soon as your device will become available. If I've not mistaken your device pings APNS every minute.