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);
  }