Implementing polyfills for insertAdjacent* to get them working on FF.

tests/html/element_add_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('ElementAddTest');
+#import('../../pkg/unittest/unittest.dart');
+#import('../../pkg/unittest/html_config.dart');
+#import('dart:html');
+#source('util.dart');
+
+main() {
+  useHtmlConfiguration();
+
+  void expectNoSuchMethod(void fn()) =>
+    Expect.throws(fn, (e) => e is NoSuchMethodException);
+
+  group('addHTML', () {
+    test('htmlelement', () {
+      // Adding a <tr/> to a table should auto-wrap it into a tbody element.
+      var el = new TableElement();
+      el.addHTML('<tr>test</tr>');
+      expect(el.elements.length, equals(1));
+      var section = el.elements[0];
+      expect(section is TableSectionElement);
+      expect(section.elements.length, equals(1));
+      expect(section.elements[0] is TableRowElement);
+
+      el.addHTML('<tr>test</tr>');
+      expect(el.elements.length, equals(2));
+      // Validate that the first item is still first.
+      expect(el.elements[0] == section);
+      expect(el.elements[1] is TableSectionElement);
+    });
+
+    test('documentFragment', () {
+      var fragment = new DocumentFragment();
+      fragment.addHTML('<span>something</span>');
+      expect(fragment.elements.length, equals(1));
+      expect(fragment.elements[0] is SpanElement);
+    });
+  });
+
+  group('addText', () {
+    test('htmlelement', () {
+      var el = new DivElement();
+      el.addText('foo');
+      // No elements were created.
+      expect(el.elements.length, equals(0));
+      // One text node was added.
+      expect(el.nodes.length, equals(1));
+    });
+
+    test('documentFragment', () {
+      var fragment = new DocumentFragment();
+      fragment.addText('foo');
+      // No elements were created.
+      expect(fragment.elements.length, equals(0));
+      // One text node was added.
+      expect(fragment.nodes.length, equals(1));
+    });
+  });
+
+  group('insertAdjacentElement', () {
+    test('beforebegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      var newChild = new SpanElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentElement('beforebegin', newChild);
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[0] is SpanElement);
+    });
+
+    test('afterend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      var newChild = new SpanElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentElement('afterend', newChild);
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[1] is SpanElement);
+    });
+
+    test('afterbegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      var newChild = new SpanElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentElement('afterbegin', newChild);
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[0] is SpanElement);
+    });
+
+    test('beforeend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      var newChild = new SpanElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentElement('beforeend', newChild);
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[1] is SpanElement);
+    });
+  });
+
+  group('insertAdjacentHTML', () {
+    test('beforebegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentHTML('beforebegin', '<span></span>');
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[0] is SpanElement);
+    });
+
+    test('afterend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentHTML('afterend', '<span></span>');
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[1] is SpanElement);
+    });
+
+    test('afterbegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentHTML('afterbegin', '<span></span>');
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[0] is SpanElement);
+    });
+
+    test('beforeend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentHTML('beforeend', '<span></span>');
+
+      expect(parent.elements.length, 2);
+      expect(parent.elements[1] is SpanElement);
+    });
+  });
+
+  group('insertAdjacentText', () {
+    test('beforebegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentText('beforebegin', 'test');
+
+      expect(parent.nodes.length, 2);
+      expect(parent.nodes[0] is Text);
+    });
+
+    test('afterend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      child.insertAdjacentText('afterend', 'test');
+
+      expect(parent.nodes.length, 2);
+      expect(parent.nodes[1] is Text);
+    });
+
+    test('afterbegin', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentText('afterbegin', 'test');
+
+      expect(parent.nodes.length, 2);
+      expect(parent.nodes[0] is Text);
+    });
+
+    test('beforeend', () {
+      var parent = new DivElement();
+      var child = new DivElement();
+      parent.elements.add(child);
+
+      parent.insertAdjacentText('beforeend', 'test');
+
+      expect(parent.nodes.length, 2);
+      expect(parent.nodes[1] is Text);
+    });
+  });
+}