>The author seems to believe people either mock everything or don't mock anything.
The author is saying that people frequently mock things that it would be more economic to just run because you've got the real thing right there. Building a model for it is an expensive waste that probably won't even match reality anyway and will demand constant maintenance to sync up with reality.
If you're overtly concerned with the speed of your test suite or how fast individual tests run then you're probably the kind of person he's talking about. Overmocking tends to creep in with a speed fetish.
The author is saying that people frequently mock things that it would be more economic to just run because you've got the real thing right there. Building a model for it is an expensive waste that probably won't even match reality anyway and will demand constant maintenance to sync up with reality.
If you're overtly concerned with the speed of your test suite or how fast individual tests run then you're probably the kind of person he's talking about. Overmocking tends to creep in with a speed fetish.