>>>>> "D" == Dave Thomas <Dave / thomases.com> writes: D> I'm looking for a couple of unit tests for Ruby's random number D> generator. ruby use the generator of the system (rand48() or rand()), these generators are well known. Like it's well known that it exist better generator :-) Mersenne-Twister http://www.math.keio.ac.jp/~matumoto/emt.html ISAAC http://burtleburtle.net/bob/rand/isaacafa.html etc, look also at http://burtleburtle.net/bob/rand/testsfor.html Guy Decoux