rspec users - Feb 2011 - mocking an AR: ActiveRecord::AssociationTypeMismatch error

I have a Premise model with lots of validations and somewhat complex
callbacks.  I''ve already written tests for those (and they pass).

I also have a MeteredService model for which premise :has_many
metered_services and (of course) metered_service :belongs_to premise.

Testing MeteredService doesn''t require a real Premise -- all it needs
is
a premise_id -- so for my MeteredService tests I tried a simple mock
like:

    premise = double("premise", :id => 1)

But this fails with:

  Failure/Error: MeteredService.create(:premise => @premise)
  ActiveRecord::AssociationTypeMismatch:
    Premise(#2202729700) expected, got RSpec::Mocks::Mock(#2154067120)

I *really* don''t want to create a real Premise object unless
there''s a
way to inhibit all the validations and callbacks.  (FWIW, I use
FactoryGirl for other test, but it evidently triggers validations and
callbacks just like an ordinary .create())

What are my options?

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On Feb 12, 2011, at 1:10 AM, Fearless Fool wrote:
> I have a Premise model with lots of validations and somewhat complex
> callbacks.  I''ve already written tests for those (and they pass).
> 
> I also have a MeteredService model for which premise :has_many
> metered_services and (of course) metered_service :belongs_to premise.
> 
> Testing MeteredService doesn''t require a real Premise -- all it
needs is
> a premise_id -- so for my MeteredService tests I tried a simple mock
> like:
> 
>    premise = double("premise", :id => 1)
> 
> But this fails with:
> 
>  Failure/Error: MeteredService.create(:premise => @premise)
>  ActiveRecord::AssociationTypeMismatch:
>    Premise(#2202729700) expected, got RSpec::Mocks::Mock(#2154067120)
> 
> I *really* don''t want to create a real Premise object unless
there''s a
> way to inhibit all the validations and callbacks.  (FWIW, I use
> FactoryGirl for other test, but it evidently triggers validations and
> callbacks just like an ordinary .create())
> 
> What are my options?
http://relishapp.com/rspec/rspec-rails/v/2-5/dir/mocks/mock-model

HTH,
David

David Chelimsky wrote in post #981239:
> http://relishapp.com/rspec/rspec-rails/v/2-5/dir/mocks/mock-model
> HTH,
> David
Boy howdy, TH to the max.  (How did I miss that???)  Thanks.

- ff

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