[mkross]

You could test that the logging and parsing are in step, which then reduces the developer time to "Doh, red test" and a simple fix.

[kelnos]

Why increase your burden even to that? Computers are there to do stupid repetitive stuff for us so we don't have to. Why design a logging format that requires even minimal manual intervention to keep automated parsing working?

[LeafStorm]

So...integrate quick scripts to get a count of IP addresses into your app's test suite?