The UnitTest module (or is it a package?) provides for example-based testing. Is anyone working on a module for property-based testing. (cf. QuickCheck in Haskell, Hypothesis in Python, Kotest in Kotlin, RapidCheck in C++, etc.)
@russel - I am not aware of any such effort from within the Chapel core dev team or out in the community.
I am not sure I want to take on doing something about this on my own, not because it is a lot of work, but because it is the sort of thing that is best done by a (small) team of people who can chivvy each other into ensuring progress. If there is anyone interested in working on this, I am very happy to join in.