A small subclass for IAPManager that makes it easy to use with automated testing. Anywhere you would use IAPManager, use IAPAdapter instead.
1.) Get an instance
[IAPAdapter instance]2.) Add purchases for unit testing
[[IAPAdapter instance] addPurchase:@"productId"]
[[IAPAdapter instance] hasPurchased:@"productId"] // true3.) Running in the simulator
Whenever you try to purchase in the simulator, IAPAdapter will immediately succeed and call your success callback.