On Apr 28, 2011, at 4:37 PM, David Kahn wrote:
> I am a bit new to mocking. I am trying to stub the
> ActiveMerchant::Billing::PaypalGateway#authorize method but not clear how to
> do it. This is my code and spec.
>
> This is the pertinent code:
>
> module Payment
> def gateway
> ActiveMerchant::Billing::PaypalGateway.new(
> ...
> )
> end
>
> def authorize_payment(payment_info, associated_record_type,
> associated_record_id)
> gateway.authorize(payment_info.amount ......
> end
>
> I tried this:
> ActiveMerchant::Billing::PaypalGateway.should_receive(:authorize).and_return(authorize_payment_success_response)
This is setting an expectation on the PaypalGateway object (which is a class!).
But when you call PaypalGateway.new, you get back an instance - which is where
you want to set the expectation. So what you really need to stub is something
that looks more like an instance...you'd start off with:
gateway = stub('gateway')
gateway.should_receive(:authorize)
and next you can either stub PaypalGateway.new:
ActiveMerchant::Billing::PaypalGateway.stub(:new).and_return gateway
or what I'd more likely do:
Payment.stub(:gateway).and_return gateway
either one will get you there.
Pat
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