filter(createUnfiltered(contents), EVEN).tailSet(i));
        }
      }
    }

    @SuppressWarnings("unchecked")
    public void testSubSet() {
      for (List<Integer> contents : SAMPLE_INPUTS) {
        for (int i = 0; i < 10; i++) {
          for (int j = i; j < 10; j++) {
            assertEquals(