Add all dart:html tests from the sdk to test/codegen.

test/codegen/lib/html/mutationobserver_test.dart

+// Copyright (c) 2011, 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 mutationobserver_test;
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_individual_config.dart';
+import 'dart:html';
+
+// Due to https://code.google.com/p/chromium/issues/detail?id=329103
+// mutationObservers sometimes do not fire if the node being observed is GCed
+// so we keep around references to all nodes we have created mutation
+// observers for.
+var keepAlive = [];
+
+/**
+ * Test suite for Mutation Observers. This is just a small set of sanity
+ * checks, not a complete test suite.
+ */
+main() {
+  useHtmlIndividualConfiguration();
+
+  group('supported', () {
+    test('supported', () {
+      expect(MutationObserver.supported, true);
+    });
+  });
+
+  var expectation = MutationObserver.supported ? returnsNormally : throws;
+
+  group('childList', () {
+    mutationCallback(count, expectation) {
+      var done = false;
+      var nodes = [];
+
+      callback(mutations, observer) {
+        for (MutationRecord mutation in mutations) {
+          for (Node node in mutation.addedNodes) {
+            nodes.add(node);
+          }
+        }
+        if (nodes.length >= count) {
+          done = true;
+          expect(nodes.length, count);
+          expect(nodes, expectation);
+        }
+      }
+
+      // If it's not supported, don't block waiting for it.
+      if (!MutationObserver.supported) {
+        return () => done;
+      }
+
+      return expectAsyncUntil(callback, () => done);
+    }
+
+    test('empty options is syntax error', () {
+      expect(() {
+        var mutationObserver = new MutationObserver(
+            (mutations, observer) { expect(false, isTrue,
+                reason: 'Should not be reached'); });
+        expect(() { mutationObserver.observe(document, {}); },
+               throws);
+      }, expectation);
+    });
+
+    test('direct-parallel options-named', () {
+      expect(() {
+        var container = new DivElement();
+        keepAlive.add(container);
+        var div1 = new DivElement();
+        var div2 = new DivElement();
+        var mutationObserver = new MutationObserver(
+            mutationCallback(2, orderedEquals([div1, div2])));
+        mutationObserver.observe(container, childList: true);
+
+        container.append(div1);
+        container.append(div2);
+      }, expectation);
+    });
+
+    test('direct-nested options-named', () {
+      expect(() {
+        var container = new DivElement();
+        keepAlive.add(container);
+        var div1 = new DivElement();
+        var div2 = new DivElement();
+        var mutationObserver =
+            new MutationObserver(mutationCallback(1, orderedEquals([div1])));
+        mutationObserver.observe(container, childList: true);
+
+        container.append(div1);
+        div1.append(div2);
+      }, expectation);
+    });
+
+    test('subtree options-named', () {
+      expect(() {
+        var container = new DivElement();
+        keepAlive.add(container);
+        var div1 = new DivElement();
+        var div2 = new DivElement();
+        var mutationObserver = new MutationObserver(
+            mutationCallback(2, orderedEquals([div1, div2])));
+        mutationObserver.observe(container, childList: true, subtree: true);
+
+        container.append(div1);
+        div1.append(div2);
+      }, expectation);
+    });
+  });
+}