Chaining of setup/teardown.

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 43 matching lines @@
   Duration _runningTime;
   Duration get runningTime => _runningTime;
 
   bool enabled = true;
 
   bool _doneTeardown = false;
 
   Completer _testComplete;
 
   TestCase._internal(this.id, this.description, this.testFunction)
-  : currentGroup = _currentGroup,
-    setUp = _testSetup,
-    tearDown = _testTeardown;
+  : currentGroup = _currentContext.groupName,
+    setUp = _currentContext.testSetup,
+    tearDown = _currentContext.testTeardown;
 
   bool get isComplete => !enabled || result != null;
 
   void _prepTest() {
     _config.onTestStart(this);
     _startTime = new DateTime.now();
     _runningTime = null;
   }
 
   Future _runTest() {
@@ skipping 132 matching lines @@
   void error(String messageText, [String stack = '']) {
     _complete(ERROR, messageText, stack);
   }
 
   void _markCallbackComplete() {
     if (--_callbackFunctionsOutstanding == 0 && !isComplete) {
       pass();
     }
   }
 }