Unit testing libraries are very valuable. A unit-testing framework? What does it really do? It has a test-runner. But running software isn't some black magic,

Unit testing libraries are very valuable. A unit-testing framework? What does it really do? It has a test-runner. But running software isn't some black magic, its easy and solved. It has naming conventions. But those are really just something a team can pick and never look back. It has ways to call functions based on those naming conventions. But that is really an extension to the test-runner. Now, all the assert_contains, has_called_x, those are valuable. But easily offered as library.