these tests look they need to adjustment too:

https://github.com/mozilla/zamboni/blob/master/apps/paypal/tests/test.py#L47
https://github.com/mozilla/zamboni/blob/master/apps/paypal/tests/test.py#L176-L237
https://github.com/mozilla/zamboni/blob/master/apps/paypal/tests/test.py#L419-L437