update to polymer js 0.5.1

pkg/polymer/test/import_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 polymer.test.nested_binding_test;
-
 import 'dart:async';
 import 'dart:html';
-import 'package:polymer/polymer.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
-
-@CustomTag('my-test')
-class MyTest extends PolymerElement {
-  final List fruits = toObservable(['apples', 'oranges', 'pears']);
-
-  final _testDone = new Completer();
-
-  MyTest.created() : super.created();
-
-  ready() {
-    expect($['fruit'].text.trim(), 'Short name: [pears]');
-    _testDone.complete();
-  }
-}
+import 'package:polymer/polymer.dart';
 
 main() => initPolymer().run(() {
   useHtmlConfiguration();
 
   setUp(() => Polymer.onReady);
 
-  test('ready called',
-      () => (querySelector('my-test') as MyTest)._testDone.future);
+  test('Polymer.import', () {

[Siggi Cherem (dart-lang), 2014/11/25 17:53:42]

Maybe we should at least add a comment here to indicate that this test is
currently skipped everywhere - it wont work until we add support for deferred
imports in polymer.

I'm debating whether we should add the test now or later when we finally
implement it. 

[jakemac, 2014/12/01 18:42:51]

I think its good to have the test ready, but I added a note.

+    return Polymer.import(['element_import/import_a.html']).then((_) {
+      expect((querySelector('x-foo') as dynamic).isCustom, true);
+      var dom = document.importNode(
+          (querySelector('#myTemplate') as TemplateElement).content, true);
+      return Polymer.importElements(dom).then((_) {
+        expect((querySelector('x-bar') as dynamic).isCustom, true);
+      });
+    });
+  });
 });
+