MiniAvatarCluster.shutDownZooKeeper();
}
@Test
public void testMeanDevAccumulator() {
MeanDevAccumulator acc0 = new MeanDevAccumulator();
for (int i : new int[]{2, 4, 4, 4, 5, 5, 5, 7, 9}) {
acc0.add(i);
}
assertEquals(5, acc0.getMean(), 1e-6);
assertEquals(4, acc0.getVariance(), 1e-6);
assertEquals(2, acc0.getStdDev(), 1e-6);
}