Fakepal is a fake PayPal implementation that can be used for development purposes. It's also used by the unit and feature tests.
To use Fakepal, change the value of paypal_implementation environment variable from real to fake. You can either edit the config.yml file or pass the environment variable while starting the Rails server:
> paypal_implementation=fake rails s
Fakepal uses file based storage to store account information. Change the value of fakepal_store environment variable to control the file location.