Python doctests[1] scratch that idea, but in another angle. They are useful and popular. clitest[2] is more closely related to what I'm aiming for, and it's ve

Python doctests[1] scratch that idea, but in another angle. They are useful and popular. clitest[2] is more closely related to what I'm aiming for, and it's very useful, but hard to translate to non-shell paradigms. I am sure it can be done. [1]: https://docs.python.org/3/library/doctest.html https://docs.python.org/3/library/doctest.html [2]: https://github.com/aureliojargas/clitest https://github.com/aureliojargas/clitest