assertThat(expected).isNotNull();
        } catch (NoSuchElementException e) {
          assertThat(expected).isNull();
        }
      }
    }
  }

  public void testAllRangesAlone() {
    for (Range<Integer> range : RANGES) {
      Map<Integer, Integer> model = new HashMap<>();
      putModel(model, range, 1);
      RangeMap<Integer, Integer> test = TreeRangeMap.create();