diff -r 000000000000 -r 6474c204b198 browser/metro/base/tests/mochitest/browser_form_auto_complete.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/metro/base/tests/mochitest/browser_form_auto_complete.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,121 @@
+// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
+/* 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/. */
+
+"use strict";
+
+function clearFormHistory() {
+  FormHistory.update({ op : "remove" });
+}
+
+function test() {
+  runTests();
+  clearFormHistory();
+}
+
+function setUp() {
+  clearFormHistory();
+  PanelUI.hide();
+  yield hideContextUI();
+}
+
+function tearDown() {
+  PanelUI.hide();
+}
+
+function checkAutofillMenuItemContents(aItemList)
+{
+  let errors = 0;
+  let found = 0;
+  for (let idx = 0; idx < AutofillMenuUI.commands.childNodes.length; idx++) {
+    let item = AutofillMenuUI.commands.childNodes[idx];
+    let label = item.firstChild.getAttribute("value");
+    let value = item.getAttribute("data");
+    if (aItemList.indexOf(value) == -1) {
+      errors++;
+      info("unexpected entry:" + value);
+    } else {
+      found++;
+    }
+  }
+  is(errors, 0, "autofill menu item list error check");
+  is(found, aItemList.length, "autofill item list length mismatch, some items were not found.");
+}
+
+gTests.push({
+  desc: "simple auto complete test to insure auto complete code doesn't break.",
+  setUp: setUp,
+  tearDown: tearDown,
+  run: function () {
+    let loadedPromise, shownPromise;
+
+    yield addTab(chromeRoot + "browser_form_auto_complete.html");
+    yield waitForCondition(function () {
+      return !Browser.selectedTab.isLoading();
+    });
+
+    let tabDocument = Browser.selectedTab.browser.contentWindow.document;
+    let form = tabDocument.getElementById("form1");
+    let input = tabDocument.getElementById("textedit1");
+
+    input.value = "hellothere";
+
+    loadedPromise = waitForObserver("satchel-storage-changed", null, "formhistory-add");
+    form.submit();
+    yield loadedPromise;
+
+    // XXX Solves a problem with events not getting delivered to Content.js
+    // immediately after submitting the form.
+    yield waitForMs(500);
+
+    tabDocument = Browser.selectedTab.browser.contentWindow.document;
+    input = tabDocument.getElementById("textedit1");
+    ok(input, "input isn't null");
+    input.focus();
+
+    // Desktop and metrofx display auto-completes in response to double mouse clicks. The
+    // first click is ignored.
+    shownPromise = waitForEvent(document, "popupshown");
+    EventUtils.synthesizeMouseAtCenter(input, {}, Browser.selectedTab.browser.contentWindow);
+    EventUtils.synthesizeMouseAtCenter(input, {}, Browser.selectedTab.browser.contentWindow);
+    yield shownPromise;
+
+    checkAutofillMenuItemContents(["hellothere", "one", "two", "three", "four", "five"]);
+  }
+});
+
+gTests.push({
+  desc: "Test autocomplete selection with arrow key.",
+  setUp: setUp,
+  tearDown: tearDown,
+  run: function () {
+
+    let newTab = yield addTab(chromeRoot + "browser_form_auto_complete.html");
+    yield waitForCondition(function () {
+      return !Browser.selectedTab.isLoading();
+    });
+
+    let tabDocument = newTab.browser.contentWindow.document;
+    let input = tabDocument.getElementById("textedit1");
+    input.focus();
+
+    let shownPromise = waitForEvent(document, "popupshown");
+    EventUtils.synthesizeKey("o", {}, window);
+    yield shownPromise;
+
+    EventUtils.synthesizeKey("VK_DOWN", {}, window);
+
+    yield waitForCondition(() => input.value == "one");
+
+    is(input.value, "one", "Input updated correctly");
+
+    EventUtils.synthesizeKey("VK_DOWN", {}, window);
+
+    yield waitForCondition(() => input.value == "two");
+
+    is(input.value, "two", "Input updated correctly");
+
+    Browser.closeTab(newTab, { forceClose: true });
+  }
+});