Revive `gauche.test.generative` about gauche

Can the generative test library use SRFI-194: Random data generators for the data source? That would make it possible to set the random state for deterministic testing.

I have an implementation that extends SRFI-64 and would be happy to help if you are looking for external contributions.

For contributions, do you prefer patches to the mailing list or Github PRs? I sent a patch to gauche-devel yesterday but it may have gotten spam-filtered because I am not a member.

property-test.sld.txt
property-test-tester.scm.txt

[shirok]

That looks nice (and you're right about Gauche's make-random-real. It is actually reals-between$ in data.random which was broken). What I have in mind is to build on top of gauche.test and data.random, for our srfi-64 and srfi-194 implementations are built on top of them respectively, and having gauche.test.generative built on top of those srfis seems overly complex. However, for the broader Scheme community, a library based on extablished srifs are mroe desirable.

Are you interested in bringing your property-test to srfi? If there will be one, I'm all to adopt its API.

Regarding code contributions, github PRs is better. However, our license is BSD and the contribution needs to be the same or looser license.

Sure, I'll draft an SRFI and a relicensed PR for the Gauche implementation.

[shirok]

Pushed the fix of real-between$. It should fix make-random-real, too.

[shirok]

We drop gauche.test.generative, in favor of srfi.252.