[rspec-users] DelegateClass fails

[aslak hellesoy]

Please submit a failing spec

On 6/11/07, John Prince <jtprince at gmail.com> wrote:
> This is not a big deal, but DelegateClass fails with rspec when methods
> are defined in the the delegating class.  Here's code that demonstrates:
>
> require 'delegate'
> gem 'rspec'
> # Version 1.0.5
>
> ############################################################
> # CONTROL EXAMPLE: Works FINE.
> ############################################################
> class InheritedClass < Array
>   def large?
>     self.size >= 5
>   end
> end
>
> describe InheritedClass, "normal inheriting class is OK" do
>   it 'works just fine' do
>     myclass = InheritedClass.new([1,2,3,4,5,6])
>     myclass.should be_large
>   end
> end
>
>
> ############################################################
> # rspec should work on DelegateClasses.  Not sure how...
> ############################################################
>
> class DelegateKlass < DelegateClass(Array)
>
>   def initialize(array)
>     @internal_array = array
>     super(@internal_array)
>   end
>
>   def large?
>     @internal_array.size >= 5
>   end
>
> end
>
> =begin
> # will work if this code is available.
> class Array
>   def large?
>     self.size >= 5
>   end
> end
> =end
>
>
> describe DelegateKlass, "delegate class fails" do
>   it 'does not work on methods defined within the delegating class' do
>     myclass = DelegateKlass.new([1,2,3,4,5,6])
>     myclass.should be_large
>   end
> end
>
>
> --JTP
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