The test you take to find out how much BawMahNow you've been getting. *i.e.*, what your PurityScore is.

Or see (and help write) an completely different purity test, the EastDormPurityTest.

JohnPhilpot?'s Test is amazing.

A good archive of purity tests (the [500-question omnisex test] is considered standard around EastDorm):

http://www.armory.com/tests/purity.html

There are also a more general class of PurityTests, alluded to above and on the AngbandAndPuritySuite node, which test the amount of corruption in your life from a variety of sources. Typical examples include the Hacker Test and the Nerdity Test, available at the armory.com page above.