@SuppressWarnings("UseCollectionConstructor") // test of factory method
    HashSet<Integer> set = newHashSet(SOME_COLLECTION);
    verifySetContents(set, SOME_COLLECTION);
  }

  public void testNewHashSetFromIterable() {
    HashSet<Integer> set = newHashSet(SOME_ITERABLE);
    verifySetContents(set, SOME_ITERABLE);
  }

  public void testNewHashSetWithExpectedSizeSmall() {