using unittest via package import

tests/html/selectelement_test.dart

 // Copyright (c) 2012, 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 selectelement_test;
-import '../../pkg/unittest/lib/unittest.dart';
-import '../../pkg/unittest/lib/html_config.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
 import 'dart:html';
 
 main() {
   useHtmlConfiguration();
 
   test('selectedOptions', () {
     var element = new SelectElement();
     element.multiple = false;
     var options = [
       new OptionElement(),
@@ skipping 50 matching lines @@
 
     expect(element.options.length, 2);
     element.selectedIndex = 1;
 
     var optGroup = element.children[1];
     expect(optGroup is OptGroupElement, isTrue);
     expect(optGroup.children.single.selected, isTrue);
     expect(element.selectedOptions, optGroup.children);
   });
 }