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On Tuesday 03 June 2014 15:10:06, Roelof Wobben <r.wobben / home.nl> wrote:
> Yes, it is still related.
> if that problem is solved I miss the answer somehow.

In a nutshell: For that particular testcase/exercise, you can use e.g. 
.instance_methods to check for your required methods.

The rest of the thread evolved around the discussion whether checking for an 
interface in Ruby is actually good design. 

HTH.

			--- Eric

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