docs: function (parentNode, testSuite) {
  
                  //add the test suite
                  var node = parentNode.appendChild(testSuite);
  
                  //iterate over the items in the master suite
                  for (var i=0; i < testSuite.items.length; i++){
                      if (testSuite.items[i] instanceof YUITest.TestSuite) {
                          this._addTestSuiteToTestTree(node, testSuite.items[i]);
                      } else if (testSuite.items[i] instanceof YUITest.TestCase) {
                          this._addTestCaseToTestTree(node, testSuite.items[i]);
                      }
                  }
              }