When learning Test Driven Development eventually you’ll discover there are two different schools of thought on what those tests should look like. At that point you probably already have a favourite style (only now you have a name for it) and will go to war against the other style as clearly inferior. Indeed there are lots of blog posts out there on Chicago vs London and I did my tour of duty on that war too. But I’m calling an armistice as there’s no need to fight. We need to do both as both serve specific needs. So even if you have a favourite you need to learn the other approach and think about where it better applies. You can still have a favourite – I have a favourite screwdriver – but you should be comfortable working with either.
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