public void testEncloseAll() {
    assertEquals(Range.closed(0, 0), Range.encloseAll(asList(0)));
    assertEquals(Range.closed(-3, 5), Range.encloseAll(asList(5, -3)));
    assertEquals(Range.closed(-3, 5), Range.encloseAll(asList(1, 2, 2, 2, 5, -3, 0, -1)));
  }

  public void testEncloseAll_empty() {
    assertThrows(NoSuchElementException.class, () -> Range.encloseAll(ImmutableSet.<Integer>of()));
  }

  public void testEncloseAll() {
    assertEquals(Range.closed(0, 0), Range.encloseAll(asList(0)));
    assertEquals(Range.closed(-3, 5), Range.encloseAll(asList(5, -3)));
    assertEquals(Range.closed(-3, 5), Range.encloseAll(asList(1, 2, 2, 2, 5, -3, 0, -1)));
  }

  public void testEncloseAll_empty() {
    assertThrows(NoSuchElementException.class, () -> Range.encloseAll(ImmutableSet.<Integer>of()));
  }

      for (int i = 0; i < elements.size() - 1; i++) {
        assertEquals(elements.get(i) + 1, (int) elements.get(i + 1));
      }
      Range<Integer> range =
          elements.isEmpty() ? Range.closedOpen(0, 0) : Range.encloseAll(elements);
      return ContiguousSet.create(range, DiscreteDomain.integers());
    }
  }

  /**
   * Useless constructor for a class of static utility methods.
   *

      for (int i = 0; i < elements.size() - 1; i++) {
        assertEquals(elements.get(i) + 1, (int) elements.get(i + 1));
      }
      Range<Integer> range =
          elements.isEmpty() ? Range.closedOpen(0, 0) : Range.encloseAll(elements);
      return ContiguousSet.create(range, DiscreteDomain.integers());
    }
  }

  /**
   * Useless constructor for a class of static utility methods.
   *

    assertFalse(rangeSet.contains(0));
    assertFalse(rangeSet.intersects(Range.singleton(0)));
    assertFalse(rangeSet.encloses(Range.singleton(0)));
    assertTrue(rangeSet.enclosesAll(rangeSet));
    assertTrue(rangeSet.isEmpty());
  }

  public void testAll() {
    ImmutableRangeSet<Integer> rangeSet = ImmutableRangeSet.all();