[plt-scheme] handin-server checker

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Wed Sep 2 18:13:51 EDT 2009

I think Ryan is asking for a programmatic way to time-out sandboxes.

As for the universe teachpack, we should probably provide a stub that
is 'graphics' less and instead admits a reply of events, including
message events from the server.

On Sep 2, 2009, at 6:09 PM, Eli Barzilay wrote:

> On Sep  2, Ryan Golbeck wrote:
>> Has anyone started / tried using the handin-server checker framework
>> to deal with assignents that use the new universe teachpack?
>> Namely, how are people dealing with the big-bang expression which
>> may not have a stop-when? clause to end the simulation in
>> combination with the checker?
> A sandboxed evaluator runs in its own thread, and you can kill it
> whenever.  However, it will be difficult to programmatically test that
> the window is up, that the graphics is showing what it should etc.
> And that reminds me of an additional item I forgot to mention in my
> last email: there is no way currently to have `check-expect' raise an
> error for test failures (and it's very difficult to even tell if a
> sandbox had test failures at all).
> --  
>          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli  
> Barzilay:
>                    http://barzilay.org/                   Maze is  
> Life!
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