As current TEST() produces no output, tried modifing it in several ways:
calling ctest, make -C tests test, etc, etc. Mostly got zero test runs, except
once that I got:
> 0% tests passed, 14 tests failed out of 14
but couldn't reproduce :-/
Help on figuring out what's the proper way to execute tests much appreciated.
Smoke tested on beta5 64 bits, both on `python3.10` and with `links` (that requires brotli).