[rspec-users] BDD and Interacting With External Resources

David Chelimsky dchelimsky at gmail.com
Wed Dec 29 10:01:52 EST 2010

On Dec 29, 2010, at 12:01 AM, Shea Levy wrote:
> Hi all,
> What's the best way to handle features which rely on an external API in a behaviour-driven way? Suppose I have an app which manages online ordering from several independent stores, with a cut taken from each purchase, and I want to add a feature whereby orders made by phone that were facilitated by the website can be tracked so that the cut can be taken. I discover that I can use Twilio to generate a phone number for each store and set up a controller to generate Twiml that results in callers to that phone number hearing a recording warning them that their call will be recorded then redirecting them to the store's real number, with a URL of the recording being sent back to the controller after hangup. How would I drive out the desired behaviour (which can be seen as either "the app generates the proper twiml and stores the relevant call data" or "the app routes and records calls" depending on your perspective) from the outside-in? I don't know how to write a Cucumber step definition that ensures that a phone rings!

The behavior of the app is to set up the Twimi correctly, so I'd specify that with an automation tool like RSpec or Cucumber. You can do a manual system test to prove the phone rings.

I'm sure there are other opinions.

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