Making it easier to run individual HTML tests.

pkg/unittest/lib/html_individual_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 unit test library for running groups of tests in a browser, instead of the
  * entire test file. This is especially used for large tests files that have
  * many subtests, so we can mark groups as failing at a finer granularity than
  * the entire test file.
  *
  * To use, import this file, and call [useHtmlIndividualConfiguration] at the
  * start of your set sequence. Important constraint: your group descriptions
  * MUST NOT contain spaces.
  */
 library unittest_html_individual_config;
 
 import 'dart:html';
 import 'unittest.dart' as unittest;
 import 'html_config.dart' as htmlconfig;
 
 class HtmlIndividualConfiguration extends htmlconfig.HtmlConfiguration {
 
   String _noSuchTest = '';
   HtmlIndividualConfiguration(isLayoutTest): super(isLayoutTest);
 
   void onStart() {
-    var testGroupName = window.location.search;
-    if (testGroupName != '') {
+    var search = window.location.search;
+    if (search != '') {

[blois, 2013/03/14 18:02:14]

This is a slightly unrelated change, but basically it was occasionally applying
filters which were not valid regular expressions because tests would munge the
arguments.

       try {
-        for (var parameter in testGroupName.substring(1).split('&')) {
+        for (var parameter in search.substring(1).split('&')) {
           if (parameter.startsWith('group=')) {
-            testGroupName = parameter.split('=')[1];
+            var testGroupName = parameter.split('=')[1];
+            unittest.filterTests('^$testGroupName${unittest.groupSep}');
           }
         }
-        unittest.filterTests('^$testGroupName${unittest.groupSep}');
       } catch (e) {
         print('tried to match "$testGroupName"');
         print('NO_SUCH_TEST');
       }
     }
     super.onStart();
   }
 }
 
 void useHtmlIndividualConfiguration([bool isLayoutTest = false]) {
   if (unittest.config != null) return;
   unittest.configure(new HtmlIndividualConfiguration(isLayoutTest));
 }