rspec users - Jun 2009 - mock object in array is getting size called on it

On Fri, Jun 26, 2009 at 7:13 AM, doug livesey<biot023 at gmail.com>
wrote:
> Hi, I have this code:
>
> ? def self.bulk_create_from_holly( params )
> ??? params.map do |param|
> ????? new( param )
> ??? end
> ? end
>
> That is testeb by this expectation:
>
> ??? it "should generate a new property with each set of params"
do
> ????? [ @params, @properties ].transpose.each do |(param, property)|
> ??????? Property.should_receive( :new ).with( param ).and_return( property
)
> ????? end
>
> ????? do_call
> ??? end
>
> In it, @params and @properties are of the same size (they are generated
> together). The objects in the @properties array are not mocked active
record
> objects, but just plain old mocks (ie. mock( property1 ) ). This has to be
> so, as I am using a third party ar adapter that does not support the rails
> spec stubs & mocks.
> In the spec, I am simply trying to assert that a new property should be
> generated for each item in @params.
> However, I am getting this message when I run the expectation:
>
> NoMethodError in ''Property.bulk_create_from_holly( params ) should
generate
> a new property with each set of params''
> undefined method `size'' for
> #<Proc:0xb72721b4 at ./spec/models/property_spec.rb:49>
> /home/doug/work/rails/neville/app/models/property.rb:20:in
> `bulk_create_from_holly''
> /home/doug/work/rails/neville/app/models/property.rb:19:in `map''
> /home/doug/work/rails/neville/app/models/property.rb:19:in
> `bulk_create_from_holly''
> ./spec/models/property_spec.rb:38:in `do_call''
> ./spec/models/property_spec.rb:52:
> ./script/spec:10:
>
> As you can see, nowhere do I call size(), and so can only think that this
is
> some bizarre internal thing.
Why don''t you debug it and find out where the call is coming from? If
you''ve updated to rspec-1.2.7  you can do this:

prop1 = mock(property1)
prop1.stub(:size) { puts caller(0)[1]; 37 }

Then at least we''ll know what we''re dealing with :)
> Or I''m being really dumb & missing something obvious.
> Can anyone spot where I''m going wrong, or maybe suggest a way
around this?
> Cheers,
> ?? Doug.
>
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>

On Fri, Jun 26, 2009 at 8:15 AM, doug livesey<biot023 at gmail.com>
wrote:
>> Why don''t you debug it and find out where the call is coming
from?
>
> I get:
>
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:171:in
> `call''
>
> That block''s a very useful feature I was unaware of! ;)
Yeah - it''s in the release notes, but I should really blog about it.
Maybe next year :)

Anyhow - that''s the code that''s calling the block I asked you
to put
in there :) Doesn''t help much - try going back a few frames in the
stack:

prop1 = mock(property1)
prop1.stub(:size) { puts caller(0)[1..5]; 37 }



> ?? Doug.
>
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>

On Fri, Jun 26, 2009 at 8:30 AM, doug livesey<biot023 at gmail.com>
wrote:
> Copying that (a-la monkey see, monkey do), I get:
>
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:171:in
> `call''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:171:in
> `invoke_return_block''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:122:in
> `invoke''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:99:in
> `message_received''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:142:in
> `size''
Ah - so close!!!!!! Try [1..10] - I''m pretty sure that the next line
will reveal our culprit, as that will show the code that is actually
calling the size method.

On Fri, Jun 26, 2009 at 9:36 AM, doug livesey<biot023 at gmail.com>
wrote:
> That''ll be:
>
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:171:in
> `call''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:171:in
> `invoke_return_block''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:122:in
> `invoke''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:99:in
> `message_received''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:142:in
> `size''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:162:in
> `invoke_consecutive_return_block''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/message_expectation.rb:120:in
> `invoke''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:101:in
> `message_received''
>
/home/doug/work/rails/neville/vendor/gems/rspec-1.2.7/lib/spec/mocks/proxy.rb:142:in
> `new''
> /home/doug/work/rails/neville/app/models/property.rb:20:in
> `bulk_create_from_holly''
This last line is where you should look, if you haven''t already.
> Sorry for the delays -- keep getting called away into other things!
> & thanks,
> ?? Doug.