I like Rust unit tests, simply because you don't need to set anything up to use them. Also they can go in the module you're testing, so writing tests for things that are not public is simple.
I wish the test report output was more comprehensible, and that there was a property test framework that felt more like in Haskell, e.g printing the PRNG seed when a test fails and letting you run with that seed again; it seems like proptest is the best there is, and it’s doing its own thing, kind of like how property tests work in OCaml.