assertThrows(IllegalArgumentException.class, () -> ArrayListMultimap.create(15, -2));

    assertThrows(IllegalArgumentException.class, () -> ArrayListMultimap.create(-15, 2));
  }

  public void testCreateFromHashMultimap() {
    Multimap<String, Integer> original = HashMultimap.create();
    ArrayListMultimap<String, Integer> multimap = ArrayListMultimap.create(original);
    assertEquals(3, multimap.expectedValuesPerKey);
  }

    assertSame(Ordering.natural(), copyFromTree.get(1.0).comparator());
  }

  /** Test that creating one TreeMultimap from a non-TreeMultimap results in natural ordering. */
  public void testCreateFromHashMultimap() {
    Multimap<Double, Double> hash = HashMultimap.create();
    hash.put(1.0, 2.0);
    hash.put(2.0, 3.0);
    hash.put(3.0, 4.0);
    hash.put(4.0, 5.0);