svoid test_timSortIntArrayWithComparator(int n default 1000000) {
  print("Testing timSortIntArrayWithComparator with size " + n);
  int[] a = listToIntArray(shuffled(iotaZeroList(n)));
  print("Sorting");
  timSortIntArrayWithComparator(a, (x, y) -> cmp(y,x));
  print(takeFirst(10, wrapIntArrayAsList(a)));
  assertEquals(reversed(iotaZeroList(n)), wrapIntArrayAsList(a));
}