From: "Mauricio Fernández" <batsman.geo@...>
Date: 2004-08-28T06:05:57+09:00
Subject: Re: Literate testing?

On Sat, Aug 28, 2004 at 05:40:33AM +0900, Massimiliano Mirra - bard wrote:
> 
> I was documenting a class and found myself often copying unit tests
> and pasting them as examples.  I think I also read something about
> tests embedded in doc strings in Python.  So in the interest of DRY I
> figured something like this could be desirable:
> 
>   class Calculator
>     extend Literate
> 
>     example
>       # Addition
>       add(2, 8) == 10
>     end
>   
>     def add(a, b)
>       return a + b
>     end
>   end
>   
> I then came up with a stupid but working proof of concept:
>   
>   class Calculator
>     extend Literate
>     
>     example(__FILE__, __LINE__) do |calc|
>       # Addition
>       calc.add(2, 8) == 10
>     end

I believe you can make it look a bit better by using Kernel#caller
and Module#method_added; it would also be nice to generate test
cases for Test::Unit (for instance by defining the test_* methods in
MyClass::LiterateTests so that they can be included in a test suite
later).

Reminds me of Florian Gro�' 'test extractor' [109712]. 
It works "the other way around" though, by extracting the tests from the 
comments (similar to what you describe for Python).

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