h serializableShadowRoots false should return the same as .innerHTML');
    // ...and that the default for serializableShadowRoots is false.
    assert_equals(wrapper.getHTML(),wrapper.innerHTML,
        'The default for serializableShadowRoots should be false');

  }, `${runGetHTMLOnShadowRoot ? 'ShadowRoot' : 'Element'}.getHTML() on ` +
      `<${elementType}>${lightDOMContent}${allowsShadowDom ?
      `, with ${declarativeShadowDom ? 'declarative' : 'imperative'} shadow, ` +
      `mode=${mode}, delegate