This is a good idea -- I can certainly say that I've written stuff that would be improved by refactoring. Can I encourage people to write actual unit tests for

This is a good idea -- I can certainly say that I've written stuff that would be improved by refactoring. Can I encourage people to write actual unit tests for any code presented, too? I usually take my code snippets from a small standalone project, with unit tests and a build script (Maven, as I usually work in Java), placed in a git repository that I link to.