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

test/codegen/lib/html/localstorage_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 LocalStorageTest;
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'dart:html';
+
+main() {
+  useHtmlConfiguration();
+
+  void testWithLocalStorage(String name, fn()) {
+    test(name, () {
+      window.localStorage['key1'] = 'val1';
+      window.localStorage['key2'] = 'val2';
+      window.localStorage['key3'] = 'val3';
+
+      try {
+        fn();
+      } finally {
+      window.localStorage.clear();
+      }
+    });
+  }
+
+  testWithLocalStorage('containsValue', () {
+    expect(window.localStorage.containsValue('does not exist'), isFalse);
+    expect(window.localStorage.containsValue('key1'), isFalse);
+    expect(window.localStorage.containsValue('val1'), isTrue);
+    expect(window.localStorage.containsValue('val3'), isTrue);
+  });
+
+  testWithLocalStorage('containsKey', () {
+    expect(window.localStorage.containsKey('does not exist'), isFalse);
+    expect(window.localStorage.containsKey('val1'), isFalse);
+    expect(window.localStorage.containsKey('key1'), isTrue);
+    expect(window.localStorage.containsKey('key3'), isTrue);
+  });
+
+  testWithLocalStorage('[]', () {
+    expect(window.localStorage['does not exist'], isNull);
+    expect(window.localStorage['key1'], 'val1');
+    expect(window.localStorage['key3'], 'val3');
+  });
+
+  testWithLocalStorage('[]=', () {
+    expect(window.localStorage['key4'], isNull);
+    window.localStorage['key4'] = 'val4';
+    expect(window.localStorage['key4'], 'val4');
+
+    expect(window.localStorage['key3'], 'val3');
+    window.localStorage['key3'] = 'val3-new';
+    expect(window.localStorage['key3'], 'val3-new');
+  });
+
+  testWithLocalStorage('putIfAbsent', () {
+    expect(window.localStorage['key4'], isNull);
+    expect(window.localStorage.putIfAbsent('key4', () => 'val4'), 'val4');
+    expect(window.localStorage['key4'], 'val4');
+
+    expect(window.localStorage['key3'], 'val3');
+    expect(window.localStorage.putIfAbsent('key3',
+        () => expect(false, isTrue, reason: 'should not be called')), 'val3');
+    expect(window.localStorage['key3'], 'val3');
+  });
+
+  testWithLocalStorage('remove', () {
+    expect(window.localStorage.remove('does not exist'), isNull);
+    expect(window.localStorage.remove('key3'), 'val3');
+    expect(window.localStorage, equals({'key1': 'val1', 'key2': 'val2'}));
+  });
+
+  testWithLocalStorage('clear', () {
+    window.localStorage.clear();
+    expect(window.localStorage, equals({}));
+  });
+
+  testWithLocalStorage('forEach', () {
+    Map<String, String> results = {};
+    window.localStorage.forEach((k, v) {
+      results[k] = v;
+    });
+    expect(results, equals({'key1': 'val1', 'key2': 'val2', 'key3': 'val3'}));
+  });
+
+  testWithLocalStorage('getKeys', () {
+    expect(window.localStorage.keys.toList(),
+        unorderedEquals(['key1', 'key2', 'key3']));
+  });
+
+  testWithLocalStorage('getVals', () {
+    expect(window.localStorage.values.toList(),
+        unorderedEquals(['val1', 'val2', 'val3']));
+  });
+
+  testWithLocalStorage('length', () {
+    expect(window.localStorage.length, 3);
+    window.localStorage.clear();
+    expect(window.localStorage.length, 0);
+  });
+
+  testWithLocalStorage('isEmpty', () {
+    expect(window.localStorage.isEmpty, isFalse);
+    window.localStorage.clear();
+    expect(window.localStorage.isEmpty, isTrue);
+  });
+}