return new TreeMultiset<>(
        rootReference,
        range.intersect(GeneralRange.upTo(comparator(), upperBound, boundType)),
        header);
  }

  @Override
  public SortedMultiset<E> tailMultiset(@ParametricNullness E lowerBound, BoundType boundType) {
    return new TreeMultiset<>(
        rootReference,
        range.intersect(GeneralRange.downTo(comparator(), lowerBound, boundType)),
        header);
  }

    return new TreeMultiset<>(
        rootReference,
        range.intersect(GeneralRange.upTo(comparator(), upperBound, boundType)),
        header);
  }

  @Override
  public SortedMultiset<E> tailMultiset(@ParametricNullness E lowerBound, BoundType boundType) {
    return new TreeMultiset<>(
        rootReference,
        range.intersect(GeneralRange.downTo(comparator(), lowerBound, boundType)),
        header);
  }

          expectIntersect = true;
          break;
        }
      }
      assertEquals(
          rangeSet + " was incorrect on intersects(" + query + ")",
          expectIntersect,
          rangeSet.intersects(query));
    }
  }

  public void testEnclosing(RangeSet<Integer> rangeSet) {
    assertTrue(rangeSet.enclosesAll(ImmutableList.<Range<Integer>>of()));