lightweight and colourful test framework for OCaml

 Alcotest exposes simple interface to perform unit tests. It exposes a
 simple TESTABLE module type, a check function to assert test
 predicates and a run function to perform a list of unit -> unit test
 callbacks.
 .
 Alcotest provides 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.