Roll Observatory packages and add a roll script

packages/polymer/test/inject_bound_html_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.
+
+import 'dart:async';
+import 'dart:html';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:polymer/polymer.dart';
+
+@CustomTag('x-foo')
+class XFoo extends PolymerElement {
+  @observable String bar = "baz";
+
+  XFoo.created() : super.created();
+
+  @ComputedProperty('bar')
+  String get ignore => readValue(#bar);
+}
+
+class NullTreeSanitizer implements NodeTreeSanitizer {
+  const NullTreeSanitizer();
+  void sanitizeTree(Node node) {}
+}
+final nullSanitizer = const NullTreeSanitizer();
+
+class NullNodeValidator implements NodeValidator {
+  const NullNodeValidator();
+  bool allowsAttribute(Element e, String a, String v) => true;
+  bool allowsElement(Element element) => true;
+}
+final nullValidator = const NullNodeValidator();
+
+main() => initPolymer().then((zone) => zone.run(() {
+  useHtmlConfiguration();
+
+  XFoo xFoo;
+  DivElement injectDiv;
+
+  setUp(() => Polymer.onReady.then((_) {
+    xFoo = querySelector('x-foo');
+    injectDiv = xFoo.$['inject'];
+  }));
+
+  tearDown(() {
+    injectDiv.innerHtml = '';
+  });
+
+  test('can inject bound html fragments', () {
+    xFoo.injectBoundHtml('<span>{{bar}}</span>', element: injectDiv);
+    expect(injectDiv.innerHtml, '<span>baz</span>');
+
+    xFoo.bar = 'bat';
+    return new Future(() {}).then((_) {
+      expect(injectDiv.innerHtml, '<span>bat</span>');
+    });
+  });
+
+  test('custom sanitizer and validator', () {
+    var html = '<span style="color: black;"></span>';
+    var sanitizedHtml = '<span></span>';
+
+    // Expect it to sanitize by default.
+    xFoo.injectBoundHtml(html, element: injectDiv);
+    expect(injectDiv.innerHtml, sanitizedHtml);
+
+    // Don't sanitize if we give it a dummy validator
+    xFoo.injectBoundHtml(html, element: injectDiv, validator: nullValidator);
+    expect(injectDiv.innerHtml, html);
+
+    // Don't sanitize if we give it a dummy sanitizer
+    xFoo.injectBoundHtml(html,
+        element: injectDiv, treeSanitizer: nullSanitizer);
+    expect(injectDiv.innerHtml, html);
+  });
+}));