Fix issue 2933 - if an exception is thrown before we start the first test, but after the testcase i…

pkg/unittest/test_case.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.
 
 /**
  * testcase.dart: this file is sourced by unittest.dart. It defines [TestCase]
  * and assumes unittest defines the type [TestFunction].
  */
 
 /** Summarizes information about a single test case. */
@@ skipping 38 matching lines @@
 
   /** The group (or groups) under which this test is running. */
   final String currentGroup;
 
   Date startTime;
 
   Duration runningTime;
 
   bool enabled = true;
 
+  bool running = false;
+
   bool _doneTeardown = false;
 
   TestCase(this.id, this.description, this.test,
            this.callbackFunctionsOutstanding)
   : currentGroup = _currentGroup,
     _setUp = _testSetup,
     _tearDown = _testTeardown;
 
   bool get isComplete => !enabled || result != null;
 
   void run() {
     if (enabled) {
+      running = true;
       result = stackTrace = null;
       message = '';
       _doneTeardown = false;
       if (_setUp != null) {
         _setUp();
       }
       _config.onTestStart(this);
       startTime = new Date.now();
       runningTime = null;
       test();
     }
   }
 
   void _complete() {
     if (runningTime == null) {
       // TODO(gram): currently the duration measurement code is blocked
       // by issue 4437. When that is fixed replace the line below with:
       //    runningTime = new Date.now().difference(startTime);
       runningTime = new Duration(milliseconds:0);
     }
     if (!_doneTeardown) {
       if (_tearDown != null) {
         _tearDown();
       }
       _doneTeardown = true;
     }
+    running = false;
     _config.onTestResult(this);
   }
 
   void pass() {
     result = _PASS;
     _complete();
   }
 
   void fail(String messageText, String stack) {
     if (result != null) {
@@ skipping 10 matching lines @@
     }
   }
 
   void error(String messageText, String stack) {
     result = _ERROR;
     message = messageText;
     stackTrace = stack;
     _complete();
   }
 }