Right. I found the header I was looking for. The issue is that the documentation doesn't make a lot of things clear. For example, even after finding a mention of the header and it's purpose, I struggled for a bit before discovering that I had to define BOOST_AUTO_TEST_MAIN before #including header. In fact, I found this out through a resource other than Boost's documentation for Boost.Test. While the library certainly appears to live up to the standard of quality I've come to expect from Boost, the documentation does not.