Changes to how we handle fancy stacks:

pkg/unittest/lib/src/test_case.dart

 // Copyright (c) 2013, 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.
 
 part of unittest;
 
 /**
  * Represents the state for an individual unit test.
  *
  * Create by calling [test] or [solo_test].
@@ skipping 23 matching lines @@
   String _message = '';
   /** Error or failure message. */
   String get message => _message;
 
   String _result;
   /**
    * One of [PASS], [FAIL], [ERROR], or [null] if the test hasn't run yet.
    */
   String get result => _result;
 
-  Trace _stackTrace;
+  String _stackTrace;
   /** Stack trace associated with this test, or [null] if it succeeded. */
-  Trace get stackTrace => _stackTrace;
+  get stackTrace => _stackTrace;

[nweiz, 2013/08/15 23:03:25]

The getter should also be typed.

Now there's no way to get the parsed stack trace. There should be a getter for
that as well, with documentation that it may be null.

[gram, 2013/08/16 16:56:45]

I'm changing it to StackTrace; I wasn't aware that Trace was a subclass of
StackTrace. I don't think we need two getters in this case.

 
   /** The group (or groups) under which this test is running. */
   final String currentGroup;
 
   DateTime _startTime;
   DateTime get startTime => _startTime;
 
   Duration _runningTime;
   Duration get runningTime => _runningTime;
 
@@ skipping 66 matching lines @@
             }).catchError(_errorHandler('Teardown'));
           } else if (tearDown != null) {
             return tearDown();
           }
         })
         .catchError(_errorHandler('Teardown'));
   }
 
   // Set the results, notify the config, and return true if this
   // is the first time the result is being set.
   void _setResult(String testResult, String messageText, stack) {

[nweiz, 2013/08/15 23:03:25]

[stack] here should be typed as StackTrace.

[gram, 2013/08/16 16:56:45]

Done.

     _message = messageText;
-    _stackTrace = _getTrace(stack);
+    var trace = _getTrace(stack);
+    if (trace == null) trace = stack;
+    _stackTrace = (trace == null) ? null :  trace.toString();
     if (result == null) {
       _result = testResult;
       _config.onTestResult(this);
     } else {
       _result = testResult;
       _config.onTestResultChanged(this);
     }
   }
 
   void _complete(String testResult, [String messageText = '', stack]) {
@@ skipping 33 matching lines @@
   void error(String messageText, [stack]) {
     _complete(ERROR, messageText, stack);
   }
 
   void _markCallbackComplete() {
     if (--_callbackFunctionsOutstanding == 0 && !isComplete) {
       pass();
     }
   }
 }