Unit testing the app.config file with NUnit

Question

When you guys are unit testing an application that relies on values from an app.config file? How do you test that those values are read in correctly and how your program re

Answer 1

Actually, thinking on it further, I suppose what I should do is create a ConfigFileReader class for use in my project and then fake it out in the unit test harness?

Is that the usual thing to do?