diff -r 000000000000 -r 6474c204b198 browser/devtools/webconsole/test/browser_webconsole_notifications.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/webconsole/test/browser_webconsole_notifications.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,70 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* 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/. */
+
+const TEST_URI = "data:text/html;charset=utf-8,<p>Web Console test for notifications";
+
+function test() {
+  observer.init();
+  addTab(TEST_URI);
+  browser.addEventListener("load", onLoad, true);
+}
+
+function webConsoleCreated(aID)
+{
+  Services.obs.removeObserver(observer, "web-console-created");
+  ok(HUDService.getHudReferenceById(aID), "We have a hud reference");
+  content.wrappedJSObject.console.log("adding a log message");
+}
+
+function webConsoleDestroyed(aID)
+{
+  Services.obs.removeObserver(observer, "web-console-destroyed");
+  ok(!HUDService.getHudReferenceById(aID), "We do not have a hud reference");
+  executeSoon(finishTest);
+}
+
+function webConsoleMessage(aID, aNodeID)
+{
+  Services.obs.removeObserver(observer, "web-console-message-created");
+  ok(aID, "we have a console ID");
+  is(typeof aNodeID, "string", "message node id is a string");
+  executeSoon(closeConsole);
+}
+
+let observer = {
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
+
+  observe: function observe(aSubject, aTopic, aData)
+  {
+    aSubject = aSubject.QueryInterface(Ci.nsISupportsString);
+
+    switch(aTopic) {
+      case "web-console-created":
+        webConsoleCreated(aSubject.data);
+        break;
+      case "web-console-destroyed":
+        webConsoleDestroyed(aSubject.data);
+        break;
+      case "web-console-message-created":
+        webConsoleMessage(aSubject, aData);
+        break;
+      default:
+        break;
+    }
+  },
+
+  init: function init()
+  {
+    Services.obs.addObserver(this, "web-console-created", false);
+    Services.obs.addObserver(this, "web-console-destroyed", false);
+    Services.obs.addObserver(this, "web-console-message-created", false);
+  }
+};
+
+function onLoad() {
+  browser.removeEventListener("load", onLoad, true);
+  openConsole();
+}