[plt-scheme] faster testing for world programs

Essentially that solution is in the works; sorry to say that I didn't
get done in time for the upcoming release tho.

Robby

On Mon, Sep 21, 2009 at 4:50 PM, Gregor Kiczales <gregor at cs.ubc.ca> wrote:
> In 4.2.1, unit testing with image functions is quite slow. I'm guessing that
> this comes from pixel by pixel comparison of images.
>
> It seems like an easy optimization would be for the images returned by the
> image functions to also carry a symbolic description, and for the equality
> testing to operate on the symbolic descriptions. Since the images are
> immutable it seems like that would work.
>
> Or is there perhaps a better solution in the works? As it is, my students
> are commenting out test cases which isn't what we want.
>
> Gregor
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