diff -r 000000000000 -r 6474c204b198 addon-sdk/test/browser_sdk_loader_js_modules.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/test/browser_sdk_loader_js_modules.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,33 @@
+function test () {
+  let loader = makeLoader();
+  let module = Module("./main", gTestPath);
+  let require = Require(loader, module);
+
+  try {
+    let Model = require("./cant-find-me");
+    ok(false, "requiring a JS module that doesn't exist should throw");
+  }
+  catch (e) {
+    ok(e, "requiring a JS module that doesn't exist should throw");
+  }
+
+
+  /*
+   * Relative resource:// URI of JS
+   */
+
+  let { square } = require("./math");
+  is(square(5), 25, "loads relative URI of JS");
+
+  /*
+   * Absolute resource:// URI of JS
+   */
+
+  let { has } = require("resource://gre/modules/commonjs/sdk/util/array");
+  let testArray = ['rock', 'paper', 'scissors'];
+
+  ok(has(testArray, 'rock'), "loads absolute resource:// URI of JS");
+  ok(!has(testArray, 'dragon'), "loads absolute resource:// URI of JS");
+
+  finish();
+}