[Ecls-list] Random tester

Juan Jose Garcia Ripoll jlr at mpq.mpg.de
Fri Jan 7 06:15:19 UTC 2005

Hi Paul,

could you briefly explain me how to run the random tester. I am 
currently using "make random-test" and "make rt_1000_8", but I am not 
sure whether this is the right way. Is there also a recommended size for 
the tests, number of variables, etc. Finally, is there a way to print 
not only the offending form, but also the type of error it produces: 
whether it fails to compile, to run, produces a wrong result, etc... I 
would like to see this during the realization of the test, not after 
waiting for the 1000 or 10000 tests to finish.

Besides that, I have verified that the errors that one sees with ECL and 
the random tester are not, as you suggested, due to memory leaks, but 
due to things like wrong inline forms and type propagation failures. It 
seems just that your random tester tends to cluster the tests: for 
instance now you see a lot of failures due to (AREF ...) forms where the 
array is inferred to have the wrong type, and short after comes a large 
period without errors.

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