diff -r 000000000000 -r 6474c204b198 browser/devtools/tilt/test/browser_tilt_picking_inspector.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/tilt/test/browser_tilt_picking_inspector.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+let presenter;
+
+function test() {
+  if (!isTiltEnabled()) {
+    info("Skipping highlight test because Tilt isn't enabled.");
+    return;
+  }
+  if (!isWebGLSupported()) {
+    info("Skipping highlight test because WebGL isn't supported.");
+    return;
+  }
+
+  waitForExplicitFinish();
+
+  createTab(function() {
+    let { devtools } = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
+    let target = devtools.TargetFactory.forTab(gBrowser.selectedTab);
+
+    gDevTools.showToolbox(target, "inspector").then(function(toolbox) {
+      let contentDocument = toolbox.target.tab.linkedBrowser.contentDocument;
+      let div = contentDocument.getElementById("first-law");
+      toolbox.getCurrentPanel().selection.setNode(div);
+
+      createTilt({
+        onTiltOpen: function(instance)
+        {
+          presenter = instance.presenter;
+          whenOpen();
+        }
+      }, false, function suddenDeath()
+      {
+        info("Tilt could not be initialized properly.");
+        cleanup();
+      });
+    });
+  });
+}
+
+function whenOpen() {
+  ok(presenter._currentSelection > 0,
+    "Highlighting a node didn't work properly.");
+  ok(!presenter._highlight.disabled,
+    "After highlighting a node, it should be highlighted. D'oh.");
+  ok(!presenter.controller.arcball._resetInProgress,
+    "Highlighting a node that's already visible shouldn't trigger a reset.");
+
+  executeSoon(function() {
+    Services.obs.addObserver(cleanup, DESTROYED, false);
+    Tilt.destroy(Tilt.currentWindowId);
+  });
+}
+
+function cleanup() {
+  Services.obs.removeObserver(cleanup, DESTROYED);
+  gBrowser.removeCurrentTab();
+  finish();
+}