MTGOX & COINBASE Merchant Buttons - Testing?

[BittBurger]

Is there a way to run a full test order using the MTGOX "add to cart" buttons that I place on my online store?  

I would like to see what the customer see's, what confirmation emails are sent out - what the full experience is when buying on my site using the bitcoin buttons.

But I really dont want to pay transaction fees to buy my own products with my own bitcoins.

Merchant tools usually have a testing method that is free for webmasters to use.

In this case like a fake key you can use for testing.  

Do these systems have that?

Thank you.