diff -r 000000000000 -r 6474c204b198 addon-sdk/source/test/fixtures/test-page-worker.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/test/fixtures/test-page-worker.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* 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/. */
+
+
+// get title directly
+self.postMessage(["equal", document.title, "Page Worker test",
+            "Correct page title accessed directly"]);
+
+// get <p> directly
+let p = document.getElementById("paragraph");
+self.postMessage(["ok", !!p, "<p> can be accessed directly"]);
+self.postMessage(["equal", p.firstChild.nodeValue,
+            "Lorem ipsum dolor sit amet.",
+            "Correct text node expected"]);
+
+// Modify page
+let div = document.createElement("div");
+div.setAttribute("id", "block");
+div.appendChild(document.createTextNode("Test text created"));
+document.body.appendChild(div);
+
+// Check back the modification
+div = document.getElementById("block");
+self.postMessage(["ok", !!div, "<div> can be accessed directly"]);
+self.postMessage(["equal", div.firstChild.nodeValue,
+            "Test text created", "Correct text node expected"]);
+self.postMessage(["done"]);
+