[racket] Can `raco test ...' return non 0 values?

I just pushed this and made rackunit, eli-tester, and raco test use it.

On Thu, Mar 21, 2013 at 1:41 AM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
>
> I like the idea of an optional N/M passed message that could also be used in
> raco test to signal a status. If someone could take on this task, that would
> be wonderful.
>
>
>
>
> On Mar 21, 2013, at 1:22 AM, Robby Findler wrote:
>
> I didn't mean to suggest obligatory output.
>
>
> On Wed, Mar 20, 2013 at 7:07 PM, Diogo F. S. Ramos <diogofsr at gmail.com>
> wrote:
>>
>> Jay McCarthy <jay.mccarthy at gmail.com> writes:
>>
>> > I think that would be a great solution. We could also put that call
>> > into 'taco test' with an optional switch or as the default if it were
>> > popular and/or not rackunit-specific
>> >
>> > Jay
>> >
>> > On Wednesday, March 20, 2013, Robby Findler wrote:
>> >
>> >     Rackunit could probably provide some kind of summary information
>> >     for these top-level tests that could then be queried (via an extra
>> >     call that a rackunit programmer puts at the end of the last test
>> >     file) to determine how to exit.
>> >
>> >
>> >     I know that I wish there were some kind of summary "you passed N
>> >     tests" instead of silence when nothing fails.
>>
>> I don't know if I'm understanding you correctly, but it's a normal
>> behavior for tools to be silent if everything went OK.
>>
>> Adding some obligatory output seems to make the life harder for those
>> who want to use `raco test' as a tool.
>
>
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-- 
Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University
http://faculty.cs.byu.edu/~jay

"The glory of God is Intelligence" - D&C 93