I use Learning Tests for such situations. https://blog.thecodewhisperer.com/permalink/when-to-write-learning-tests https://blog.thecodewhisperer.com/permalink/

I use Learning Tests for such situations. https://blog.thecodewhisperer.com/permalink/when-to-write-learning-tests https://blog.thecodewhisperer.com/permalink/when-to-write-le... (not fully read by me but seem to explain this technique very well)