 });

  test('node accessors (unmanaged logical tree)', function() {
    var element = document.createElement('div');
    var child1 = document.createElement('div');
    var child2 = document.createElement('div');
    element.appendChild(child1);
    element.appendChild(child2);
    assert.equal(element.parentNode, null, 'parentNode incorrect');
    assert.equal(element.firstChild, child1, 'firstChild incorrect');
    assert.equal(element.lastChild, child2, 'lastChild incorrect');
    assert.equal(element.n