Many thanks for this. What a good idea!
I can let you know when fun3 <https://github.com/william-vw/fun3> has reached a level of maturity needed for compliance testing (it wouldn't score very high now, since most built-ins aren't implemented...)
William
> On Jan 20, 2026, at 9:07 AM, Patrick Hochstenbach <Patrick.Hochstenbach@ugent.be> wrote:
>
> I would like to announce a small project ‘notation3tests’ (https://codeberg.org/phochste/notation3tests) as a collection of test for the Notation3 specifications. As I hope to see more Notation3 implementations there is a need to have a test suite that strictly follows the most recent Notation3 specifications. At of this date I created 916 tests. Most of them are checking the built-in functions that are provided by the language.
>
> I’ve also ran the tests against various known implementations of Notation3. The reports of the compliance can be found in the ‘reports’ section.
>
> Patrick