docs: function () {
  
                  this._root = new TestNode(this.masterSuite);
                  //this._cur = this._root;
  
                  //iterate over the items in the master suite
                  for (var i=0; i < this.masterSuite.items.length; i++){
                      if (this.masterSuite.items[i] instanceof YUITest.TestSuite) {
                          this._addTestSuiteToTestTree(this._root, this.masterSuite.items[i]);
                      } else if (this.masterSuite.items[i] instanceof YUITest.TestCase) {
                          this._addTestCaseToTestTree(this._root, this.masterSuite.items[i]);
                      }
                  }
  
              }