Install libounit-ocaml-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libounit-ocaml-dev
Unit testing framework for OCaml
OUnit is a unit testing framework for OCaml, imspired by the JUnit tool for Java and the HUnit tool for Haskell. . OUnit is designed to provide a convenient way for you to write tests for your OCaml code. Tests can be aggregated into test suites, making it easy to both write tests close to the code being examined and execute a comprehensive aggregate set of tests -- or any subset of it.