Dartest CL - Please review

client/testing/dartest/dartest.dart

Index: client/testing/dartest/dartest.dart
===================================================================
--- client/testing/dartest/dartest.dart	(revision 0)
+++ client/testing/dartest/dartest.dart	(revision 0)
@@ -0,0 +1,527 @@
+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#library('dartest');
+
+#import('dart:dom');
+#import('../unittest/unittest_dartest.dart');
+
+#source('css.dart');
+
+interface Elements {
+  Element get containerDiv();
+  Element get mainElem();
+  Element get testBody();
+  Element get testsRunElem();
+  Element get testsFailedElem();
+  Element get testsErrorsElem();
+  Element get orange();
+  Element get red();
+  Element get green();
+  Element get coverageBody();
+  Element get covPreElem();
+  HTMLElement get covTableBody();
+}
+
+class AppElements implements Elements {
+  Element containerDiv;
+  Element mainElem;
+  Element testBody;
+  Element testsRunElem;
+  Element testsFailedElem;
+  Element testsErrorsElem;
+  Element orange;
+  Element red;
+  Element green;
+  Element coverageBody;
+  Element covPreElem;
+  HTMLElement covTableBody;
+}
+
+
+/** DARTest provides a library to run tests in the app. */
+class DARTest{
+  AppElements _inAppElements, _fullAppElements, _appElements;
+  DOMWindow _runnerWindow;
+
+  DARTest() { 
+    _runnerWindow = window;
+    dartestLogger = _log;
+    _inAppElements = new AppElements();
+    _appElements = _inAppElements;
+    DARTestCss.inject(document, true);
+  }
+  
+  void run() {
+    _renderMain();
+    _createResultsTable();
+  }
+
+  void _log(String message) {
+    _runnerWindow.console.log(message);
+  }
+  
+  /** Create the results table after loading tests. */
+  void _createResultsTable() {
+    _log('Creating results table');
+    HTMLTableElement table = _runnerWindow.document.createElement('table');
+    table.className = 'dt-results';
+    HTMLTableSectionElement head = _runnerWindow.document.createElement('thead');
+    head.innerHTML = '<tr><th>ID <th>Description <th>Result';
+    table.appendChild(head);
+    
+    HTMLTableSectionElement body = _runnerWindow.document.createElement('tbody');
+    body.id = 'dt-results-body';
+    tests.forEach((final t) {
+      HTMLTableRowElement testDetailRow = 
+        _runnerWindow.document.createElement('tr');
+      testDetailRow.id = 'dt-test-${t.id}';
+      _addTestDetails(t, testDetailRow);
+      body.appendChild(testDetailRow);
+      
+      HTMLTableRowElement testMessageRow = 
+        _runnerWindow.document.createElement('tr');
+      testMessageRow.id = 'dt-detail-${t.id}';
+      testMessageRow.className = 'dt-hide';
+      body.appendChild(testMessageRow);
+    });
+    
+    table.appendChild(body);
+    
+    if(_appElements.testBody != null) {
+      _appElements.testBody.appendChild(table);
+    }
+  }
+
+  /** Update the results table for test. */
+  void _updateResultsTable(TestCase t, DOMWindow domWin) {
+    HTMLTableRowElement row = domWin.document.getElementById('dt-test-${t.id}');
+    row.className = 'dt-result-row';
+    row.innerHTML = ''; // Remove all children as we will re-populate them
+    _addTestDetails(t, row);
+    
+    HTMLTableRowElement details = 
+      domWin.document.getElementById('dt-detail-${t.id}');
+    details.appendChild(_getTestStats(t, domWin));
+    
+    row.addEventListener('click', (Event e) {
+        if(details.className == 'dt-hide') {
+          details.className = '';
+        } else {
+          details.className = 'dt-hide';
+        }
+      }, true);
+  }
+  
+  /** Escape HTML special chars. */
+  String _escape(String str) {
+    str = str.replaceAll('&','&amp;');
+    str = str.replaceAll('<','&lt;');
+    str = str.replaceAll('>','&gt;');
+    str = str.replaceAll('"','&quot;');
+    str = str.replaceAll("'",'&#x27;');
+    str = str.replaceAll('/','&#x2F;');
+    return str;
+  }
+  
+  /** Get test results as table cells. */
+  void _addTestDetails(TestCase t, HTMLTableRowElement row) {
+    HTMLTableCellElement testId = _runnerWindow.document.createElement('td');
+    testId.textContent = t.id;
+    row.appendChild(testId);
+    
+    HTMLTableCellElement testDesc = _runnerWindow.document.createElement('td');
+    testDesc.textContent = t.description;
+    row.appendChild(testDesc);
+    
+    HTMLTableCellElement testResult = _runnerWindow.document.createElement('td');
+    String result = (t.result == null) ? 'none' : _escape(t.result);
+    testResult.className = 'dt-$result';
+    testResult.title = '${_escape(t.message)}';
+    testResult.textContent = result.toUpperCase();
+    row.appendChild(testResult);
+  }
+  
+  HTMLTableCellElement _getTestStats(TestCase t, DOMWindow domWin) {
+    HTMLTableCellElement tableCell = domWin.document.createElement('td');
+    tableCell.colSpan = 3;
+    
+    if(t.message != '') {
+      HTMLSpanElement messageSpan = domWin.document.createElement('span');
+      messageSpan.textContent = t.message;
+      tableCell.appendChild(messageSpan);
+      tableCell.appendChild(domWin.document.createElement('br'));
+    }
+    if(t.stackTrace != null) {
+      HTMLPreElement stackTacePre = domWin.document.createElement('pre');
+      stackTacePre.textContent = t.stackTrace;
+    }
+    
+    HTMLSpanElement durationSpan = domWin.document.createElement('span');
+    durationSpan.textContent = 'took ${_printDuration(t.runningTime)}';
+    tableCell.appendChild(durationSpan);
+    
+    return tableCell;
+  }
+  
+  /** Update the UI after running test. */
+  void _updateDARTestUI(TestCase test) {
+    _updateResultsTable(test, window);
+    if(_runnerWindow != window) {
+      _updateResultsTable(test, _runnerWindow);
+    }
+    
+    if(test.result != null) {
+      _log('  Result: ${test.result.toUpperCase()} ${test.message}');
+    }
+    if(test.runningTime != null) {
+      _log('  took ${_printDuration(test.runningTime)}');
+    }
+    _updateStatusProgress(_appElements);
+    if(_runnerWindow != window) {
+      _updateStatusProgress(_inAppElements);
+    }
+  }
+  
+  void _updateStatusProgress(AppElements elements) {
+    // Update progressbar
+    var pPass = 
+      ((testsRun - testsFailed - testsErrors) / tests.length) * 100;
+    elements.green.setAttribute('style', 'width:$pPass%');
+    var pFailed = pPass + (testsFailed / tests.length) * 100;
+    elements.red.setAttribute('style', 'width:$pFailed%');
+    var pErrors = pFailed + (testsErrors / tests.length) * 100;
+    elements.orange.setAttribute('style', 'width:$pErrors%');
+
+    // Update status
+    elements.testsRunElem.textContent = testsRun.toString();
+    elements.testsFailedElem.textContent = testsFailed.toString();
+    elements.testsErrorsElem.textContent = testsErrors.toString();
+  }
+  
+  String _printDuration(Duration timeDuration) {
+    StringBuffer out = new StringBuffer();
+    if(timeDuration.inDays > 0) {
+      out.add('${timeDuration.inDays} days ');
+    }
+    if(timeDuration.inHours > 0) {
+      out.add('${timeDuration.inHours} hrs ');
+    }
+    if(timeDuration.inMinutes > 0) {
+      out.add('${timeDuration.inMinutes} mins ');
+    }
+    if(timeDuration.inSeconds > 0) {
+      out.add('${timeDuration.inSeconds} s ');
+    }
+    if(timeDuration.inMilliseconds > 0 || out.length == 0) {
+      out.add('${timeDuration.inMilliseconds} ms');
+    }
+    return out.toString();
+  }
+
+  /** Populates the floating div with controls and toolbar. */
+  HTMLDivElement _renderMain() {
+    HTMLDivElement containerDiv = _runnerWindow.document.createElement('div');
+    containerDiv.className = 'dt-container';
+    _appElements.containerDiv = containerDiv;
+    
+    // Add the test controls
+    HTMLDivElement mainElem = _runnerWindow.document.createElement('div');
+    mainElem.className = 'dt-main';
+    _appElements.mainElem = mainElem;
+    
+    _showTestControls();
+    
+    // Create header to hold window controls
+    if(_runnerWindow == window) {
+      HTMLDivElement headDiv = _runnerWindow.document.createElement('div');
+      headDiv.className = 'dt-header';
+      headDiv.innerHTML = 'DARTest: In-App View';
+      HTMLImageElement close = _runnerWindow.document.createElement('img');
+      close.className = 'dt-header-close';
+      close.addEventListener('click', (Event) {
+        containerDiv.className = 'dt-hide';
+      }, true);
+      HTMLImageElement pop = _runnerWindow.document.createElement('img');
+      pop.className = 'dt-header-pop';
+      pop.addEventListener('click', (Event) => _dartestMaximize(), true);
+      HTMLImageElement minMax = _runnerWindow.document.createElement('img');
+      minMax.className = 'dt-header-min';
+      minMax.addEventListener('click', (Event) {
+        if (mainElem.classList.contains('dt-hide')) {
+          mainElem.classList.remove('dt-hide');
+          mainElem.classList.add('dt-show');
+          minMax.className = 'dt-header-min';
+        } else {
+          if (mainElem.classList.contains('dt-show')) {
+            mainElem.classList.remove('dt-show');
+          }
+          mainElem.classList.add('dt-hide');
+          minMax.className = 'dt-header-max';
+        }
+      }, true);
+      headDiv.appendChild(close);
+      headDiv.appendChild(pop);
+      headDiv.appendChild(minMax);
+      
+      containerDiv.appendChild(headDiv);
+    }
+
+    HTMLDivElement tabDiv = _runnerWindow.document.createElement('div');
+    tabDiv.className = 'dt-tab';
+    HTMLUListElement tabList = _runnerWindow.document.createElement('ul');
+    HTMLLIElement testingTab = _runnerWindow.document.createElement('li');
+    HTMLLIElement coverageTab = _runnerWindow.document.createElement('li');
+    testingTab.className = 'dt-tab-selected';
+    testingTab.textContent = 'Testing';
+    testingTab.addEventListener('click', (Event) {
+      _showTestControls();
+      _changeTabs(testingTab, coverageTab);
+    }, true);
+    tabList.appendChild(testingTab);
+    coverageTab.textContent = 'Coverage';
+    coverageTab.addEventListener('click', (Event) {
+      _showCoverageControls();
+      _changeTabs(coverageTab, testingTab);
+    }, true);
+    tabList.appendChild(coverageTab); 
+    tabDiv.appendChild(tabList);
+    containerDiv.appendChild(tabDiv);
+    
+    if(_runnerWindow != window) {
+      HTMLDivElement popIn = _runnerWindow.document.createElement('div');
+      popIn.className = 'dt-minimize';
+      popIn.innerHTML = 'Pop In &#8690;';
+      popIn.addEventListener('click', (Event) => _dartestMinimize(), true);
+      containerDiv.appendChild(popIn);
+    }  
+    
+    containerDiv.appendChild(mainElem);
+    _runnerWindow.document.body.appendChild(containerDiv);
+  }
+  
+  void _changeTabs(HTMLLIElement clickedTab, HTMLLIElement oldTab) {
+    oldTab.className = '';
+    clickedTab.className = 'dt-tab-selected';
+  }
+  
+  void _showTestControls() {
+    HTMLDivElement testBody = _appElements.testBody;
+    if(testBody == null) {
+      testBody = _runnerWindow.document.createElement('div');
+      _appElements.testBody = testBody;
+    
+      // Create a toolbar to hold action buttons
+      HTMLDivElement toolDiv = _runnerWindow.document.createElement('div');
+      toolDiv.className = 'dt-toolbar';
+      HTMLButtonElement runBtn = _runnerWindow.document.createElement('button');
+      runBtn.innerHTML = '&#9658;';
+      runBtn.title = 'Run Tests';
+      runBtn.className = 'dt-button dt-run';
+      runBtn.addEventListener('click', (Event) {
+        _log('Running tests');
+        updateUI = _updateDARTestUI;
+        runDartests();
+      }, true);
+      toolDiv.appendChild(runBtn);
+      HTMLButtonElement exportBtn = 
+        _runnerWindow.document.createElement('button');
+      exportBtn.innerHTML = '&#8631;';
+      exportBtn.title = 'Export Results';
+      exportBtn.className = 'dt-button dt-run';
+      exportBtn.addEventListener('click', (Event e) {
+        _log('Exporting results');
+        _exportTestResults();
+      }, true);
+      toolDiv.appendChild(exportBtn);
+      testBody.appendChild(toolDiv);
+      
+      // Create a datalist element for showing test status
+      HTMLDListElement statList = _runnerWindow.document.createElement('dl');
+      statList.className = 'dt-status';
+      HTMLElement runsDt = _runnerWindow.document.createElement('dt');
+      runsDt.textContent = 'Runs:';
+      statList.appendChild(runsDt);
+      HTMLElement testsRunElem = _runnerWindow.document.createElement('dd');
+      _appElements.testsRunElem = testsRunElem;
+      testsRunElem.textContent = testsRun.toString();
+      statList.appendChild(testsRunElem);
+  
+      HTMLElement failDt = _runnerWindow.document.createElement('dt');
+      failDt.textContent = 'Failed:';
+      statList.appendChild(failDt);
+      HTMLElement testsFailedElem = _runnerWindow.document.createElement('dd');
+      _appElements.testsFailedElem = testsFailedElem;
+      testsFailedElem.textContent = testsFailed.toString();
+      statList.appendChild(testsFailedElem);
+  
+      HTMLElement errDt = _runnerWindow.document.createElement('dt');
+      errDt.textContent = 'Errors:';
+      statList.appendChild(errDt);
+      HTMLElement testsErrorsElem = _runnerWindow.document.createElement('dd');
+      _appElements.testsErrorsElem = testsErrorsElem;
+      testsErrorsElem.textContent = testsErrors.toString();
+      statList.appendChild(testsErrorsElem);  
+      testBody.appendChild(statList);
+      
+      // Create progressbar and add red, green, orange bars
+      HTMLDivElement progressDiv = _runnerWindow.document.createElement('div');
+      progressDiv.className = 'dt-progressbar';
+      progressDiv.innerHTML = "<span style='width:100%'></span>";
+      
+      HTMLSpanElement orange = _runnerWindow.document.createElement('span');
+      _appElements.orange = orange;
+      orange.className = 'orange';
+      progressDiv.appendChild(orange);
+  
+      HTMLSpanElement red = _runnerWindow.document.createElement('span');
+      _appElements.red = red;
+      red.className = 'red';
+      progressDiv.appendChild(red);
+      
+      HTMLSpanElement green = _runnerWindow.document.createElement('span');
+      _appElements.green = green;
+      green.className = 'green';
+  
+      progressDiv.appendChild(green);
+      testBody.appendChild(progressDiv);
+      
+      HTMLDivElement hiddenElem = _runnerWindow.document.createElement('div');
+      hiddenElem.className = 'dt-hide';
+      hiddenElem.innerHTML = 
+        "<a id='dt-export' download='test_results.csv' href='#' />";
+      testBody.appendChild(hiddenElem);
+      
+      if(_appElements.mainElem != null) {
+        _appElements.mainElem.appendChild(testBody);
+      }
+    }
+    
+    // Show hide divs
+    _show(_appElements.testBody);
+    _hide(_appElements.coverageBody);
+  } 
+  
+  void _showCoverageControls() {
+    HTMLDivElement coverageBody = _appElements.coverageBody;
+    if(coverageBody == null) {
+      coverageBody = _runnerWindow.document.createElement('div');
+      _appElements.coverageBody = coverageBody;
+      
+      HTMLPreElement covPreElem = _runnerWindow.document.createElement('pre');
+      _appElements.covPreElem = covPreElem;
+      coverageBody.appendChild(covPreElem);
+      
+      HTMLTableElement covTable = _runnerWindow.document.createElement('table');
+      covTable.className = 'dt-results';
+      HTMLTableSectionElement head = 
+        _runnerWindow.document.createElement('thead');
+      head.innerHTML = '<tr><th>Unit <th>Function <th>Statement <th>Branch';
+      covTable.appendChild(head);
+      HTMLTableSectionElement covTableBody = 
+        _runnerWindow.document.createElement('tbody');
+      _appElements.covTableBody = covTableBody;
+      covTableBody.id = 'dt-results-body';
+      covTable.appendChild(covTableBody);
+      coverageBody.appendChild(covTable);
+      
+      if(_appElements.mainElem != null) {
+        _appElements.mainElem.appendChild(coverageBody);
+      }
+    }
+    _show(_appElements.coverageBody);
+    _hide(_appElements.testBody);
+
+    _appElements.covPreElem.textContent = getCoverageSummary();
+    
+    // Coverage table has unit names and integers and won't have special chars
+    _appElements.covTableBody.innerHTML = getCoverageDetails();
+  }
+  
+  void _show(HTMLElement show) {
+    if(show != null) {
+      if(show.classList.contains('dt-hide')) {
+        show.classList.remove('dt-hide');
+      }
+      show.classList.add('dt-show');
+    }
+  }
+  
+  void _hide(HTMLElement hide) {
+    if(hide != null) {
+      if(hide.classList.contains('dt-show')) {
+        hide.classList.remove('dt-show');
+      }
+      hide.classList.add('dt-hide');
+    }
+  }
+
+  void _dartestMaximize() {
+    _hide(_appElements.containerDiv);
+    _runnerWindow = window.open('', 'dartest-window', 
+      DARTestCss._fullAppWindowFeatures);
+    _runnerWindow.document.title = 'Dartest';
+    _fullAppElements = new AppElements();
+    _appElements = _fullAppElements;
+    DARTestCss.inject(_runnerWindow.document, false);
+    run();
+    if(testsRun > 0) {
+      tests.forEach((final t) => _updateDARTestUI(t));
+    }
+  }
+  
+  void _dartestMinimize() {
+    _runnerWindow.close();
+    _runnerWindow = window;
+    _appElements = _inAppElements;
+    _show(_appElements.containerDiv);
+  }
+
+  void _exportTestResults() {
+    String csvData = getTestResultsCsv();
+    _log(csvData);
+    HTMLAnchorElement exportLink = 
+      _runnerWindow.document.getElementById('dt-export');
+    
+    /** Bug: Can't instantiate WebKitBlobBuilder
+     *  If this bug is fixed, we can remove the urlencode and lpad function.
+     *
+     *  WebKitBlobBuilder bb = new WebKitBlobBuilder();
+     *  bb.append(csvData);
+     *  Blob blob = bb.getBlob('text/plain;charset=${document.characterSet}');
+     *  exportLink.href = window.webkitURL.createObjectURL(blob);
+     **/
+    
+    exportLink.href = 'data:text/csv,' + _urlencode(csvData);
+    
+    MouseEvent ev = document.createEvent("MouseEvents");
+    ev.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0
+        , false, false, false, false, 0, null);
+    exportLink.dispatchEvent(ev);
+    
+  }
+
+  static String _urlencode(String s) {
+    StringBuffer out = new StringBuffer();
+    for(int i = 0; i < s.length; i++) {
+      int cc = s.charCodeAt(i);
+      if((cc >= 48 && cc <= 57) || (cc >= 65 && cc <= 90) || 
+          (cc >= 97 && cc <= 122)) {
+        out.add(s[i]);
+      } else {
+        out.add('%${_lpad(cc.toRadixString(16),2).toUpperCase()}');
+      }
+    }
+    return out.toString();
+  }
+
+  static String _lpad(String s, int n) {
+    if(s.length < n) {
+      for(int i = 0; i < n - s.length; i++) {
+        s = '0'+s;
+      }
+    }
+    return s;
+  }
+}