So siehts ganz gut aus !

node_modules/es6-set/test/lib/iterator.js

@@ -0,0 +1,13 @@
+'use strict';
+
+var Set     = require('../../polyfill')
+  , toArray = require('es5-ext/array/to-array');
+
+module.exports = function (T, a) {
+	var set = new Set(['raz', 'dwa']);
+
+	a.deep(toArray(new T(set)), ['raz', 'dwa'], "Default");
+	a.deep(toArray(new T(set, 'key+value')), [['raz', 'raz'], ['dwa', 'dwa']],
+		"Key & Value");
+	a.deep(toArray(new T(set, 'value')), ['raz', 'dwa'], "Other");
+};