pkg/unittest: test cleanup

pkg/unittest/test/async_setup_teardown_test.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.
 
 library unittestTest;
+
+import 'dart:async';
 import 'dart:isolate';
-import 'dart:async';
+
 import 'package:unittest/unittest.dart';
 
-part 'unittest_test_utils.dart';
+part 'utils.dart';
 
 var testName = 'async setup teardown test';
 
 var testFunction = (_) {
   group('good setup/good teardown', () {
     setUp(() {
       return new Future.value(0);
     });
     tearDown(() {
       return new Future.value(0);
@@ skipping 25 matching lines @@
     tearDown(() {
       return new Future.error("Failed to complete tearDown");
     });
     test('foo4', () {});
   });
   // The next test is just to make sure we make steady progress
   // through the tests.
   test('post groups', () {});
 };
 
-var expected = buildStatusString(2, 0, 3,
+final expected = buildStatusString(2, 0, 3,
     'good setup/good teardown foo1::'
     'good setup/bad teardown foo2:'
     'Teardown failed: Caught Failed to complete tearDown:'
     'bad setup/good teardown foo3:'
     'Setup failed: Caught Failed to complete setUp:'
     'bad setup/bad teardown foo4:'
     'Setup failed: Caught Failed to complete setUp:'
     'post groups');