it here.
  var b = document.importNode(a.firstElementChild, false);
  document.body.appendChild(b);
  assert.equal(b.childNodes.length, 0, 'shallow import has incorrect children');
  if (checkUnpatchedDom) {
    assert.equal(b.children.length, 2, 'shallow import has incorrect composed children');
  }
});

test('importNode deep', function() {
  var a = document.createElement('div');
  a.innerHTML = '<x-clonate><span>1</span><span>2</span></x-clonate>';
  var b = document.importNode(a, true);
  document.body.