So siehts ganz gut aus !

node_modules/es5-ext/test/object/ensure-promise.js

@@ -0,0 +1,32 @@
+"use strict";
+
+module.exports = function (t, a) {
+	var promise;
+	a.throws(function () {
+ t();
+}, TypeError);
+	a.throws(function () {
+ t(null);
+}, TypeError);
+	a.throws(function () {
+ t("promise");
+}, TypeError);
+	a.throws(function () {
+ t({});
+}, TypeError);
+	a.throws(function () {
+ t(function () {});
+}, TypeError);
+	a.throws(function () {
+ t({ then: {} });
+}, TypeError);
+	promise = { then: function () {} };
+	a(t(promise), promise);
+	promise = function () {};
+	promise.then = {};
+	a.throws(function () {
+ t(promise);
+}, TypeError);
+	promise.then = function () {};
+	a(t(promise), promise);
+};