rspec users - Feb 2008 - How to mock an association

I''ve got a "group" model that has a user_id attribute and a 
validates_existence_of :user and validates_presence_of :user_id 
validations. What method(s) do I need to stub on the User mock to 
intercept those validation calls? My goal is to isolate the Group model 
from the User model.

Thanks

Wes

On Feb 11, 2008 1:43 PM, Wes Shaddix <wshaddix at gmail.com>
wrote:
> I''ve got a "group" model that has a user_id attribute
and a
> validates_existence_of :user and validates_presence_of :user_id
> validations. What method(s) do I need to stub on the User mock to
> intercept those validation calls? My goal is to isolate the Group model
> from the User model.
See http://www.ruby-forum.com/topic/138342

and http://tersesystems.com/post/9700067.jhtml

Obvious ''rails mocking associations'' seemed to work for me,
unless I
misunderstood the question.

Of course, you could just stub ''valid?'' for any AR object as
well.
-- 
"One day, when he was naughty, Mr Bunnsy looked over the hedge into
Farmer Fred''s field and it was full of fresh green lettuces. Mr
Bunnsy, however, was not full of lettuces. This did not seem fair."
  -- Terry Pratchett, Mr. Bunnsy Has An Adventure

> Obvious ''rails mocking associations'' seemed to work for
me, unless I
...make that ''...Googling for ...''. Duh.

-- 
"One day, when he was naughty, Mr Bunnsy looked over the hedge into
Farmer Fred''s field and it was full of fresh green lettuces. Mr
Bunnsy, however, was not full of lettuces. This did not seem fair."
  -- Terry Pratchett, Mr. Bunnsy Has An Adventure

I don''t know exactly how you''re using the code, but
validates_presence_of
:user_id seems redundant. If you''ve setup a relationship from Group to
User
then Active Record will be enforcing that validation for you. Just a thought
...

Other than that you would probably do (without seeing any of your code):

group = mock_model(Group, :to_param => 1)
user = mock_model(User, :to_param => 1)

group.stub!(:user).and_return(user)



On Mon, Feb 11, 2008 at 8:21 AM, Edvard Majakari <edvard at majakari.net>
wrote:
> On Feb 11, 2008 1:43 PM, Wes Shaddix <wshaddix at gmail.com> wrote:
> > I''ve got a "group" model that has a user_id
attribute and a
> > validates_existence_of :user and validates_presence_of :user_id
> > validations. What method(s) do I need to stub on the User mock to
> > intercept those validation calls? My goal is to isolate the Group
model
> > from the User model.
>
> See http://www.ruby-forum.com/topic/138342
>
> and http://tersesystems.com/post/9700067.jhtml
>
> Obvious ''rails mocking associations'' seemed to work for
me, unless I
> misunderstood the question.
>
> Of course, you could just stub ''valid?'' for any AR object
as well.
> --
> "One day, when he was naughty, Mr Bunnsy looked over the hedge into
> Farmer Fred''s field and it was full of fresh green lettuces. Mr
> Bunnsy, however, was not full of lettuces. This did not seem fair."
>  -- Terry Pratchett, Mr. Bunnsy Has An Adventure
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>


-- 
Bryan Ray
http://www.bryanray.net

"Programming today is a race between software engineers striving to build
bigger and better idiot-proof programs, and the Universe trying to produce
bigger and better idiots. So far, the Universe is winning."
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