Alcotest is a lightweight and colourful test framework, based on OUnit.
Alcotest exposes a much more restricted interface than OUnit, as you can
only pass to
Alcotest.run a tree of callbacks of depth 2, and the
unit -> unit functions that you can build using the
OUnit.assert_* functions or any other means (including
Quickcheck-like test generators).
This limitation enables Alcotest to provide a quiet and colorful output where only faulty runs are fully displayed at the end of the run (with the full logs ready to inspect), with a simple (yet expressive) query language to select the tests to run.