Abort unit tests in the event of async failure while awaiting a future.

pkg/unittest/test/async_exception_with_future_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, 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.
 
 library unittestTest;
 
 import 'dart:async';
 import 'dart:isolate';
 
 import 'package:unittest/unittest.dart';
 
 part 'utils.dart';
 
-var testName = 'async exception test';
+var testName = 'async exception with future test';
 
 var testFunction = (_) {
   test(testName, () {
-    expectAsync(() {});
     _defer(() { throw "error!"; });
+    return new Completer().future;

[kevmoo, 2014/07/29 19:59:02]

Add a note that the goal is to terminate the test as soon as an error occurs,
even when waiting for an async operation.

[Paul Berry, 2014/07/29 21:54:38]

Done.

   });
 };

[kevmoo, 2014/07/29 19:59:01]

Could you also test that teardown is still called?

[Paul Berry, 2014/07/29 21:54:38]

Done.

 
 final expected = buildStatusString(0, 1, 0, testName, message: 'Caught error!');