Imagine you've been transported to a parallel universe, where no test frameworks exist at all.
You want to do TDD on a project you're working, and you are able to remember everything about test frameworks.
You need to write your own test framework, but in order to use your test framework, you need to be able to test the framework itself.
This is some code from an attempt at creating a test framework
Event details:
http://nwrug.org/events/february-2016-test-drive-your-own-test-framework
North West Ruby Group meet on the third Thursday of every month: