From: "Shot (Piotr Szotkowski)" <shot@...>
Date: 2008-05-19T05:17:43+09:00
Subject: Re: How to wrap either forkoff or map depending on a config variable?

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Shot (Piotr Szotkowski):

> Shot (Piotr Szotkowski):

>> I=E2=80=99m trying to write an Enumerable#parallel method that, dependin=
g on
>> a config option (retrieved inside it) would end up being an alias for
>> either Enumerable#map or Enumerable#forkoff.

> FWIW, the spec to pass is

> describe Enumerable do
>   it 'should be able to process in parallel, depending on config option' =
do
>     ArtDecomp::Config.processes =3D 1
>     pid1, pid2 =3D [1,2].parallel { Process.pid }
>     pid1.should =3D=3D pid2
>     ArtDecomp::Config.processes =3D 2
>     pid1, pid2 =3D [1,2].parallel { Process.pid }
>     pid1.should_not =3D=3D pid2
>   end
> end

Ok, a patch to make it actually test the implementation:

 describe Enumerable do
   it 'should be able to process in parallel, depending on config option' do
     ArtDecomp::Config.processes =3D 1
     pid1, pid2 =3D [1,2].parallel { Process.pid }
-    pid1.should =3D=3D pid2
+    pid1.should =3D=3D Process.pid
     ArtDecomp::Config.processes =3D 2
     pid1, pid2 =3D [1,2].parallel { Process.pid }
     pid1.should_not =3D=3D pid2
   end
 end

-- Shot (aware that the above spec in not really in true BDD spirit)
--=20
When C++ is your hammer, everything looks like a thumb.   -- Steven M. Hafl=
ich

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