GADRequest Test Mode (isTesting)

To set the GADRequest into test mode you are told to set 'isTesting.' This can be done by loading your GADBannerView like so:

GADRequest *r = [[GADRequest alloc] init];
r.testing = YES;
[bannerView_ loadRequest:r];

Apparently you don't need to care about this when you submit you app, since AdMob will never be in test mode when deployed on a real device.