Snopes doesn't actually say the test is a hoax, just that kids these days don't learn that specific stuff (probably spend their time on gobal warming and black history instead)
Well, having been lightly flamed over this, I researched this myself, despite the fact that the Snopes site says “false” in large red letters. Lots of back and forth.
I found this article in the Salina Journal from this year, claiming the test to be authentic. Live and learn.
http://www.barefootsworld.net/salina1895testarticle.pdf