From: Benoit Daloze <eregontp@...>
Date: 2010-09-04T22:49:51+09:00
Subject: Re: [ANN] Wrong: an introspecting assert library

On 3 September 2010 22:42, Alex Chaffee <alexch@gmail.com> wrote:
> For WhyDay, I took the time to clean up and document Wrong, a project
> Steve Conover and I have been working on. It's inspired by assert{2.0}
> (http://assert2.rubyforge.org/) but rewritten from scratch. Major
> kudos to Phlip for starting us down this path with assert{2.0}, and
> to Ryan Davis for his RubyParser and Ruby2Ruby libraries which made
> it technically possible.
>
>    require "wrong"
>    include Wrong::Assert
>
>    assert {1==1}
>     ==> nil
>
>    assert {2==1}
>     ==> Expected (2 == 1), but 2 is not equal to 1
>
>    x = 7; y = 10; assert { x == 7 && y == 11 }
>     ==>
>    Expected ((x == 7) and (y == 11)), but
>        (x == 7) is true
>        x is 7
>        (y == 11) is false
>        y is 10
>
>  - Alex

Neat ! I am indeed surprised you made possible to parse 1.9.

The output is still a bit looking like a stack trace of an error, but
the idea is excellent.

Thanks for this cool whyday code, you played well with a limit of the language.

B.D.