diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/update/tests/marionette/update_smoketest_ota_same_version.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/update/tests/marionette/update_smoketest_ota_same_version.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,25 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function testSameVersion() {
+  let mozSettings = window.navigator.mozSettings;
+  let forceSent = false;
+
+  mozSettings.addObserver("gecko.updateStatus", function statusObserver(setting) {
+    if (!forceSent) {
+      return;
+    }
+
+    mozSettings.removeObserver("gecko.updateStatus", statusObserver);
+    is(setting.settingValue, "already-latest-version");
+    cleanUp();
+  });
+
+  sendContentEvent("force-update-check");
+  forceSent = true;
+}
+
+// Update lifecycle callbacks
+function preUpdate() {
+  testSameVersion();
+}