The solution for exercise three does not test a simple case

[eg180]

This seems so simple that maybe I'm overthinking it and wrong? Either way, I'm not sure why we don't test the case that it works with just the last name as well.

[mattpocock]

I'm confused by what you mean. It shouldn't work with just the last name: it needs the first name.

[eg180]

Ahhh okay - I saw 'optional properties' (plural) and automatically assumed it meant both should be optional. Anyway - thanks for these exercises, Matt. Cheers.