diff -r 000000000000 -r 6474c204b198 addon-sdk/source/test/test-unsupported-skip.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/test/test-unsupported-skip.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+/* 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 app = require('sdk/system/xul-app');
+
+/*
+ * Include a module that is unsupported for the current system.
+ * The `Unsupported Application` error should be caught by the test loader
+ * and no errors should occur
+ */
+if (!app.is('Firefox')) {
+  require('./fixtures/loader/unsupported/firefox');
+} else {
+  require('./fixtures/loader/unsupported/fennec');
+}
+
+exports.testRunning = function (assert) {
+  assert.fail('Tests should not run in unsupported applications');
+};
+
+require('test').run(exports);