initial checkin from subversion

www/spec/helper.js

@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+afterEach(function() {
+    document.getElementById('stage').innerHTML = '';
+});
+
+var helper = {
+    trigger: function(obj, name) {
+        var e = document.createEvent('Event');
+        e.initEvent(name, true, true);
+        obj.dispatchEvent(e);
+    },
+    getComputedStyle: function(querySelector, property) {
+        var element = document.querySelector(querySelector);
+        return window.getComputedStyle(element).getPropertyValue(property);
+    }
+};