diff -r 000000000000 -r 6474c204b198 addon-sdk/source/test/test-object.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/test/test-object.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+'use strict';
+
+const { merge, extend, has, each } = require('sdk/util/object');
+
+let o = {
+  'paper': 0,
+  'rock': 1,
+  'scissors': 2
+};
+
+//exports.testMerge = function(assert) {}
+//exports.testExtend = function(assert) {}
+
+exports.testHas = function(assert) {
+  assert.equal(has(o, 'paper'), true, 'has correctly finds key');
+  assert.equal(has(o, 'rock'), true, 'has correctly finds key');
+  assert.equal(has(o, 'scissors'), true, 'has correctly finds key');
+  assert.equal(has(o, 'nope'), false, 'has correctly does not find key');
+  assert.equal(has(o, '__proto__'), false, 'has correctly does not find key');
+  assert.equal(has(o, 'isPrototypeOf'), false, 'has correctly does not find key');
+};
+
+exports.testEach = function(assert) {
+  var keys = new Set();
+  each(o, function (value, key, object) {
+    keys.add(key);
+    assert.equal(o[key], value, 'Key and value pairs passed in');
+    assert.equal(o, object, 'Object passed in');
+  });
+  assert.equal(keys.size, 3, 'All keys have been iterated upon');
+};
+
+require('sdk/test').run(exports);