diff -r 000000000000 -r 6474c204b198 browser/devtools/webconsole/test/browser_webconsole_message_node_id.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/webconsole/test/browser_webconsole_message_node_id.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/* 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 = "http://example.com/browser/browser/devtools/webconsole/test/test-console.html";
+
+function test() {
+  addTab(TEST_URI);
+  browser.addEventListener("DOMContentLoaded", onLoad, false);
+}
+
+function onLoad() {
+  browser.removeEventListener("DOMContentLoaded", onLoad, false);
+  openConsole(null, function(hud) {
+    content.console.log("a log message");
+
+    waitForMessages({
+      webconsole: hud,
+      messages: [{
+        text: "a log message",
+        category: CATEGORY_WEBDEV,
+        severity: SEVERITY_LOG,
+      }],
+    }).then(([result]) => {
+      let msg = [...result.matched][0];
+      ok(msg.getAttribute("id"), "log message has an ID");
+      finishTest();
+    });
+  });
+}