    assert_equals(media[-1], undefined, "media[-1] should return undefined");
    assert_equals(media[0], "screen", "media[0] should return \"screen\"");
    assert_equals(media[1], "print", "media[1] should return \"print\"");
    assert_equals(media[2], undefined, "media[2] should return undefined");
  }, "MediaList getter");

  test(function() {
    assert_equals(media.item(-1), null, "media.item(-1) should return null");
    assert_equals(media.item(0), "screen", "media.item(0) should return \"screen\""