@Test(invocationCount = 20, successPercentage = 95)
public void subSetDistribution() {

	final int[] sub = new int[3];
	final int n = 100_000;
	final Random random = new Random();
	final Histogram<Integer> histogram = Histogram.ofInteger(0, n, 13);
	IntStream.range(0, 10_000)
		.flatMap(i -> IntStream.of(Combinatorics.subset(n, sub, random)))
		.forEach(histogram::accept);
	assertUniformDistribution(histogram);
}