assertEquals(Range.atLeast(Integer.MIN_VALUE), Range.<Integer>all().canonical(integers()));
  }

  public void testCanonical_unboundedDomain() {
    assertEquals(Range.lessThan(0), Range.lessThan(0).canonical(UNBOUNDED_DOMAIN));
    assertEquals(Range.lessThan(1), Range.atMost(0).canonical(UNBOUNDED_DOMAIN));
    assertEquals(Range.atLeast(0), Range.atLeast(0).canonical(UNBOUNDED_DOMAIN));

    assertEquals(Range.atLeast(Integer.MIN_VALUE), Range.<Integer>all().canonical(integers()));
  }

  public void testCanonical_unboundedDomain() {
    assertEquals(Range.lessThan(0), Range.lessThan(0).canonical(UNBOUNDED_DOMAIN));
    assertEquals(Range.lessThan(1), Range.atMost(0).canonical(UNBOUNDED_DOMAIN));
    assertEquals(Range.atLeast(0), Range.atLeast(0).canonical(UNBOUNDED_DOMAIN));

    assertFalse(rangeSet.intersects(Range.closedOpen(4, 5)));
    assertTrue(rangeSet.intersects(Range.lessThan(1)));
    assertTrue(rangeSet.intersects(Range.greaterThan(1)));
    assertFalse(rangeSet.intersects(Range.greaterThan(3)));

    assertTrue(rangeSet.encloses(Range.closed(2, 3)));
    assertTrue(rangeSet.encloses(Range.lessThan(1)));
    assertFalse(rangeSet.encloses(Range.closedOpen(1, 5)));

        @Override
        public long distance(Integer start, Integer end) {
          throw new AssertionError();
        }
      };

  public void testCreate_noMin() {
    Range<Integer> range = Range.lessThan(0);
    assertThrows(
        IllegalArgumentException.class,
        () -> ContiguousSet.create(range, UNBOUNDED_THROWING_DOMAIN));
  }

  public void testCreate_noMax() {

        @Override
        public long distance(Integer start, Integer end) {
          throw new AssertionError();
        }
      };

  public void testCreate_noMin() {
    Range<Integer> range = Range.lessThan(0);
    assertThrows(
        IllegalArgumentException.class,
        () -> ContiguousSet.create(range, UNBOUNDED_THROWING_DOMAIN));
  }

  public void testCreate_noMax() {

    assertEquals(empty, Sets.subSet(set, Range.lessThan(0)));
    assertEquals(ImmutableSortedSet.of(2), Sets.subSet(set, Range.lessThan(4)));
    assertEquals(ImmutableSortedSet.of(2, 4, 6), Sets.subSet(set, Range.lessThan(7)));
    assertEquals(set, Sets.subSet(set, Range.lessThan(20)));

    assertEquals(empty, Sets.subSet(set, Range.atMost(0)));

//       metadata:
//         - key: content-type
//           value: image/* # match objects with 'content-type', all values starting with 'image/'
//       size:
//         lessThan: "10MiB" # match objects with size less than this value (e.g. 10MiB)
//         greaterThan: 1MiB # match objects with size greater than this value (e.g. 1MiB)
//       purge: