It's third party code I worry about, where it hasn't been written to expect a root directory. I can chroot on *NIX, I suppose. Perhaps I should go and have a l

It's third party code I worry about, where it hasn't been written to expect a root directory. I can chroot on *NIX, I suppose. Perhaps I should go and have a look at how code using boost normally deals with dependency injection for testing. Maybe I'm missing something.