On Nov 20, 2011, at 2:46 AM, Patrick J. Collins wrote:
>> I haven't used ActiveRecord in quite awhile (been using MongoDB), but it
>> looks like you cannot instantiate a record with attributes that don't exist.
>> I think you have two options here:
>>
>> 1.) Only use valid attributes in your params.
>> 2.) Add `with` to your stub to exactly match the arguments to `.new`:
>> Post.stubs(:new).with({last_post_params: {foo:
>> 'bar'}}).returns(fake_post)
>
> Yeah.. I originally had tried your 2nd option... Putting an expectation on
> the arguments sent to new made no difference. I just tried it again to
> verify,
> and I still get the same error. Seems so weird to me.
Then use the first! The potential problem is that the params change and you
need to change them here, but you can alleviate that with a method like
valid_attributes:
describe PostsController do
def valid_attributes
{ :title => "Isolating change" }
end
describe "#store_params" do
it "saves the post params for later" do
session[:post_params].should be_blank
post :create, { :post => valid_attributes }
session[:post_params].should eq(valid_attributes)
end
end
end
You could also use FactoryGirl.attributes_for(:post) if you're using that tool.
Either way, this removes the need to figure out where to stub what on the
model. If you're concerned about the DB call, you could still stub save! but
using valid_attributes would get you past the validations that happen before
save!.
HTH,
David
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