   testElement.innerHTML = '<div>Hello World</div><div>2</div><div>3</div>';
    var added = testElement.firstChild;
    assert.equal(added.textContent , 'Hello World', 'innerHTML setter incorrect');
    assert.equal(testElement.innerHTML , '<div>Hello World</div><div>2</div><div>3</div>', 'innerHTML getter incorrect');
    assert.equal(testElement.children.length, 3);
  });

});

suite('activeElement', function() {
  var r;
    // light
      var r_l;
    // shadow
      var r_0;
        // light
         