Do not mark test as successful in callbackDone if test is

client/testing/unittest/unittestsuite.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.
 
 // TODO(rnystrom): This code is gradually moving from a Java/JUnit style to
 // something closer to JS/Jasmine. Eventually, the UnitTestSuite class can go
 // away completely (or become private to this library) and the only exposed API
 // will be group()/test()/expect(). Until then, both ways are supported, which
 // is why things look a bit weird in here.
 
@@ skipping 142 matching lines @@
     if (testCase.callbacks == 0) {
       testCase.recordError(
           "Can't call callbackDone() on a synchronous test", '');
       _uncaughtError = true;
     } else if (_callbacksCalled > testCase.callbacks) {
       final expected = testCase.callbacks;
       testCase.recordError(
           'More calls to callbackDone() than expected. '
           + 'Actual: ${_callbacksCalled}, expected: ${expected}', '');
       _uncaughtError = true;
-    } else if (_callbacksCalled == testCase.callbacks) {
+    } else if (_callbacksCalled == testCase.callbacks && !_testIsRunning) {
       testCase.recordSuccess();
-      if (!_testIsRunning) {
-        _currentTest++;
-        _nextBatch();
-      }
+      _currentTest++;
+      _nextBatch();
     }
   }
 
   /**
    * Runs a batch of tests, yielding whenever an asynchronous test starts
    * running. Tests will resume executing when such asynchronous test calls
    * [done] or if it fails with an exception.
    */
   void _nextBatch() {
     while (_currentTest < _tests.length) {
@@ skipping 347 matching lines @@
         </tr>""";
     if (stackTrace != null) {
       message +=
           "<tr><td></td><td colspan='2'><pre>${stackTrace}</pre></td></tr>";
     }
     fail = true;
   }
 }
 
 typedef void TestFunction();