Making it easier to run individual HTML tests.

pkg/unittest/lib/html_config.dart

 // 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.
 
 /**
  * A simple unit test library for running tests in a browser.
  */
 library unittest_html_config;
 
 import 'dart:async';
@@ skipping 33 matching lines @@
       newBody.write("""
           <tr><td colspan='3'>Total
             <span class='unittest-pass'>${passed} passed</span>,
             <span class='unittest-fail'>${failed} failed</span>
             <span class='unittest-error'>
             ${errors + (uncaughtError == null ? 0 : 1)} errors</span>
           </td></tr>""");
     }
     newBody.write("</tbody></table>");
     document.body.innerHtml = newBody.toString();
+
+    window.onHashChange.listen((_) {
+      window.location.reload();
+    });
   }
 }
 
 String _toHtml(TestCase test_) {
   if (!test_.isComplete) {
     return '''
         <tr>
           <td>${test_.id}</td>
           <td class="unittest-error">NO STATUS</td>
           <td>Test did not complete</td>
         </tr>''';
   }
 
   var html = '''
       <tr>
         <td>${test_.id}</td>
         <td class="unittest-${test_.result}">${test_.result.toUpperCase()}</td>
-        <td>Expectation: ${test_.description}. ${_htmlEscape(test_.message)}</td>
+        <td>Expectation: <a href="#testFilter=${test_.description}">${test_.description}</a>. ${_htmlEscape(test_.message)}</td>
       </tr>''';
 
   if (test_.stackTrace != null) {
     html = '$html<tr><td></td><td colspan="2"><pre>${_htmlEscape(test_.stackTrace)}</pre></td></tr>';
   }
 
   return html;
 }
 
 //TODO(pquitslund): Move to a common lib
@@ skipping 37 matching lines @@
     if ('unittest-suite-external-error' == e.data) {
       handleExternalError('<unknown>', '(external error detected)');
     }
   }
 
   void onInit() {
     _installHandlers();
     window.postMessage('unittest-suite-wait-for-done', '*');
   }
 
+  void onStart() {
+    // If the URL has a #testFilter=testName then filter tests to that.
+    // This is used to make it easy to run a single test- but is only intended
+    // for interactive debugging scenarios.
+    var hash = window.location.hash;
+    if (hash != null && hash.length > 1) {
+      var params = hash.substring(1).split('&');
+      for (var param in params) {
+        var parts = param.split('=');
+        if (parts.length == 2 && parts[0] == 'testFilter') {
+          filterTests('^${parts[1]}');
+        }
+      }
+    }
+    super.onStart();
+  }
+
   void onSummary(int passed, int failed, int errors, List<TestCase> results,
       String uncaughtError) {
     _showResultsInPage(passed, failed, errors, results, _isLayoutTest,
         uncaughtError);
   }
 
   void onDone(bool success) {
     _uninstallHandlers();
     window.postMessage('unittest-suite-done', '*');
   }
 }
 
 void useHtmlConfiguration([bool isLayoutTest = false]) {
   if (config != null) return;
   configure(new HtmlConfiguration(isLayoutTest));
 }