This test that fieldset.elements attribute returns an HTMLCollection and not an HTMLFormControlsCollection. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS elementsList instanceof HTMLCollection is true PASS elementsList instanceof HTMLFormControlsCollection is false PASS elementsList.length is 23 PASS inputcommonElement instanceof RadioNodeList is false PASS inputcommonElement instanceof HTMLInputElement is true PASS successfullyParsed is true TEST COMPLETE