fix ol.geom.geometry api tests

src/api/geom/geometry.js

@@ -10,3 +10,17 @@ ol.geom.geometry = function(){
     var g = new ol.geom.Geometry();
     return g;
 };
+
+/**
+ * @export
+ * @param {ol.Bounds=} opt_arg new Bounds.
+ * @return {ol.geom.Geometry|ol.Bounds|undefined} either a Geometry (when used as 
+ *     setter) or a Bounds/undefined (if used as getter).
+ */
+ol.geom.Geometry.prototype.bounds = function(opt_arg) {
+    if (arguments.length == 1 && goog.isDef(opt_arg)) {
+        return this.setBounds(opt_arg);
+    } else {
+        return this.getBounds();
+    }
+};