redex-check with broken `#:prepare` fails silently.
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- Dominant language
- Racket
- Stars
- 112
- Forks
- 42
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Description
In the program:
#lang racket
(require redex)
(define-language L)
(redex-check L natural (number? (term natural)) #:prepare (lambda _ 'x))
Produces redex-check: no counterexamples in 1000 attempts.
I would have expected either an error or a complaint about generation failures (because x is not a natural).
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Research direction
Start by reproducing the supplied redex-check example and locating the redex-check entry point, especially its #:prepare handling. Trace how the prepared term is validated and how generation failures are counted; done means the broken preparation no longer reports a successful run, but raises an error or clearly reports the generation failure.
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Assessment
- Domain
- testing
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100