diff -r 000000000000 -r 6474c204b198 browser/devtools/tilt/test/browser_tilt_picking.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/tilt/test/browser_tilt_picking.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+let pickDone = false;
+
+function test() {
+  if (!isTiltEnabled()) {
+    info("Skipping picking test because Tilt isn't enabled.");
+    return;
+  }
+  if (!isWebGLSupported()) {
+    info("Skipping picking test because WebGL isn't supported.");
+    return;
+  }
+
+  waitForExplicitFinish();
+
+  createTab(function() {
+    createTilt({
+      onTiltOpen: function(instance)
+      {
+        let presenter = instance.presenter;
+        let canvas = presenter.canvas;
+
+        presenter._onSetupMesh = function() {
+          let p = getPickablePoint(presenter);
+
+          presenter.pickNode(p[0], p[1], {
+            onpick: function(data)
+            {
+              ok(data.index > 0,
+                "Simply picking a node didn't work properly.");
+
+              pickDone = true;
+              Services.obs.addObserver(cleanup, DESTROYED, false);
+              Tilt.destroy(Tilt.currentWindowId);
+            }
+          });
+        };
+      }
+    }, false, function suddenDeath()
+    {
+      info("Tilt could not be initialized properly.");
+      cleanup();
+    });
+  });
+}
+
+function cleanup() {
+  if (pickDone) { Services.obs.removeObserver(cleanup, DESTROYED); }
+  gBrowser.removeCurrentTab();
+  finish();
+}