[rspec-users] noob question (trying to understand view specs vs webrat and cucumber)...

internetchris chris at silhouettesolutions.net
Thu Jul 16 01:46:02 EDT 2009


I appreciate the reply...

So would I be correct in saying that I should develop all of my spec
tests first, and then finish it up by running some cucumber tests?



On Jul 15, 11:34 pm, Tom Stuart <t... at experthuman.com> wrote:
> Hi Chris,
> On 16 Jul 2009, at 04:14, Chris Sund wrote:
> > Can someone clarify in "simple" terms the relationship between rspec  
> > and cucumber.
> Very short answer:
> RSpec is for specifying the behaviour of individual pieces of your  
> application, ideally in isolation from all of the other pieces. The  
> mocking framework allows you to write specs for each separate piece  
> (e.g. each class) in a way that doesn't depend on any of the other  
> pieces: "Assuming that pieces A and B and C behave in the way they're  
> supposed to, piece D should behave like this...". This gives you a way  
> to drive the actual implementation of your application in detail, at  
> the level of individual methods doing simple jobs.
> Cucumber is for specifying/testing the overall behaviour of your  
> application. Whereas RSpec exercises each individual piece in  
> isolation, Cucumber exercises the interactions between all of the  
> pieces, and allows you to check what happens when several such  
> interactions happen in a particular order (e.g. a user playing a  
> complete game of Codebreaker, or going through the complete checkout/
> payment process in a web application). Whereas RSpec examples are very  
> fine-grained and implementation-focused, Cucumber features are meant  
> to be broad and high-level in a way that makes them meaningful to  
> actual users of the application (or the customers who are asking for  
> it to be built) rather than just programmers.
> One way of thinking about this is that your specs make all sorts of  
> assumptions about how the rest of the system is meant to behave, and  
> Cucumber is a way of actually checking those assumptions by running  
> the system as a whole.
> Cheers,
> -Tom
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