assertEquals(asList(5, 3), fromList);
    toList.remove("5");
    assertEquals(asList(3), fromList);
    toList.clear();
    assertEquals(emptyList(), fromList);
  }

  public void testTransformRandomAccess() {
    List<String> list = transform(SOME_LIST, SOME_FUNCTION);
    assertTrue(list instanceof RandomAccess);
  }

  public void testTransformSequential() {