sFocus=${delegatesFocus}, ` +
      `serializable=${serializable}, clonable=${clonable},` : ''}` +
      ` with${emptyShadowTree ? `out` : ``} shadow tree contents.`);
}

function runAllTests() {
  const allElements = [...HTML5_ELEMENTS, 'htmlunknown'];
  const safelisted = HTML5_SHADOW_ALLOWED_ELEMENTS.filter(el => el != 'body');
  for (const elementName of allElements) {
    const allowsShadowDom = safelisted.includes(elementName);
    for (const runGetHTMLOnShadowRoot of [false, true]) {
      for (const