So siehts ganz gut aus !

node_modules/es5-ext/test/date/#/copy.js

@@ -0,0 +1,10 @@
+"use strict";
+
+module.exports = function (t, a) {
+	var o = new Date(), o2;
+
+	o2 = t.call(o);
+	a.not(o, o2, "Different objects");
+	a.ok(o2 instanceof Date, "Instance of Date");
+	a(o.getTime(), o2.getTime(), "Same time");
+};