Added full js & js_util packages

packages/js_util/test/js_util_test.dart

Index: packages/js_util/test/js_util_test.dart
diff --git a/packages/js_util/test/js_util_test.dart b/packages/js_util/test/js_util_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..8252c2380c9559dab4165dda02fe16b4982dccf6
--- /dev/null
+++ b/packages/js_util/test/js_util_test.dart
@@ -0,0 +1,50 @@
+@JS()
+library js_util.test;
+
+import 'package:js/js.dart';
+import 'package:js_util/js_util.dart';
+import 'package:test/test.dart';
+
+@JS('JSON.stringify')
+external String stringify(Object json);
+
+void main() {
+  group('js_util tests', () {
+    test('defineProperty test', () {
+      final obj = newObject();
+      defineProperty(
+          obj, 'foo', new PropertyDescription(enumerable: true, value: 1));
+      defineProperty(
+          obj, 'bar', new PropertyDescription(enumerable: false, value: 2));
+
+      expect(stringify(obj), '{"foo":1}');
+    });
+
+    test('newObject/setValue/getValue test', () {
+      final obj = newObject();
+      setValue(obj, 'foo', 1);
+      setValue(obj, 'bar', 2);
+
+      expect(getValue(obj, 'foo'), equals(1));
+      expect(getValue(obj, 'bar'), equals(2));
+    });
+
+    test('toJS test', () {
+      final jsObj = toJS({
+        'people': [
+          {'firstName': 'Kwang Yul', 'lastName': 'Seo'},
+          {'firstName': 'DoHyung', 'lastName': 'Kim'},
+          {'firstName': 'Kyusun', 'lastName': 'Kim'}
+        ]
+      });
+
+      final people = getValue(jsObj, 'people');
+      expect(getValue(people[0], 'firstName'), equals('Kwang Yul'));
+      expect(getValue(people[0], 'lastName'), equals('Seo'));
+      expect(getValue(people[1], 'firstName'), equals('DoHyung'));
+      expect(getValue(people[1], 'lastName'), equals('Kim'));
+      expect(getValue(people[2], 'firstName'), equals('Kyusun'));
+      expect(getValue(people[2], 'lastName'), equals('Kim'));
+    });
+  });
+}