commit c818b8047c9c2e9bede89db487b8b6f90617e242
author Cosmos Nicolaou <cnicolaou@google.com> Fri Jun 05 15:52:45 2015 -0700
committer Cosmos Nicolaou <cnicolaou@google.com> Fri Jun 05 15:52:46 2015 -0700
tree 36ec5c67a22d9bb626c1e21d50558bc1cc7348da
parent ae30020841d519c7222315b9f34b6d593bfa322e

ref/test/testutil: make use of the rand generator explicit.

Before this change, testutil would implicitly initialize a
random number generator and print out the seed used. This
was mildly annoying because every test binary would print
out this seed as the first thing, but otherwise fine. However,
we'd like to move away from using a global singleton for
logging at which point logging out the seed in an init
function before other intialization has occurred becomes
problematic. This change makes it so that the random number
generator must be initialized explicitly and that this
initialization returns a function to be deferred that prints
out the seed if the test failed.

Change-Id: I0b57ea47d8eaaf45be2a5eeecba2fa1732ae85fd