  In this note, we consider a corollary of the ACC conjecture for F-pure
thresholds. Specifically, we show that the F-pure threshold (and more
generally, the test ideals) associated to a polynomial with an isolated
singularity are locally constant in the m-adic topology of the corresponding
local ring. As a by-product of our methods, we also describe a simple algorithm
for computing all of the F-jumping numbers and test ideals associated to an
arbitrary polynomial over an F-finite field.
