Work is based on Mark Schaake's UnitTester component UnitTester for 4D v11 and v12.
Main difference is, tha all added test suites and test cases are stored in JSON format instead of the previous binary format, so they can be added to a version control system like Git.
An old and a bit outdated Documentation can be found here (PDF). It is based on the original component.
But it is good for a start.