This is a testharness.js-based test.
[FAIL] Focus navigation starting point should be used when it's a descendant of the focused element.
  assert_equals: Forwards sequential focus navigation should go to BUTTON#button2 expected Element node <button data-next="" id="button2" tabindex="0">button 2</... but got Element node <button data-prev="" id="button1" tabindex="0">button 1</...
Harness: the test ran to completion.