});

test('insertBefore (light)', function() {
  var rere = testElement.root.querySelector('x-rereproject');
  var ref = testElement.root.querySelector('#added');
  var s = document.createElement('span');
  s.id = 'added2';
  s.textContent = 'Added2';
  rere.insertBefore(s, ref);
  assert.equal(testElement.root.querySelector('#added2'), s);
});

test('removeChild (light)', function() {
  var added = testElement.root.querySelector('#added');
  var added2 = testElement.root.querySelector('#added2');
  var rer