[rspec-users] newbie: need help to write the spec for helper

Matt Wynne matt at mattwynne.net
Sat Jan 3 07:25:24 EST 2009

On 31 Dec 2008, at 16:11, aslak hellesoy wrote:

> On Wed, Dec 31, 2008 at 5:02 PM, David Chelimsky  
> <dchelimsky at gmail.com> wrote:
> > So do you recommend never doing helper specs?
> I never said never :-) Here is my manifesto styled take on this:
> "I favour testing directly accessible APIs over indirectly  
> accessible ones."
> In Rails, I usually try to write a spec against a controller or view  
> before I resort to a helper spec.
> Aslak

Interesting. I've ended up going in the other direction. I started out  
writing tests for UI code at the view level, treating helper methods  
as implementation details, just as you're describing. This seemed to  
result in view specs that were fragile, with lots of mocks to set up,  
and duplicated spec logic where helper code was re-used in different  
views. I now prefer to put all the interesting stuff in the helpers,  
unit test that, use Cucumber to make sure the view doesn't blow up,  
and do very little testing of the view itself.

I guess in the context of your little manifesto, I've started to think  
of the methods you put in helpers as being the API that's used by the  
designer who hacks on the views.

Matt Wynne

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