import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/client/responsive.html/test/browser/browser_menu_item_02.js

@@ -0,0 +1,49 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test RDM menu item is checked when expected, on multiple windows.
+
+const TEST_URL = "data:text/html;charset=utf-8,";
+
+const { getMostRecentBrowserWindow } = require("sdk/window/utils");
+
+const isMenuCheckedFor = ({document}) => {
+  let menu = document.getElementById("menu_responsiveUI");
+  return menu.getAttribute("checked") === "true";
+};
+
+add_task(function* () {
+  const window1 = yield BrowserTestUtils.openNewBrowserWindow();
+  let { gBrowser } = window1;
+
+  yield BrowserTestUtils.withNewTab({ gBrowser, url: TEST_URL },
+    function* (browser) {
+      let tab = gBrowser.getTabForBrowser(browser);
+
+      is(window1, getMostRecentBrowserWindow(),
+        "The new window is the active one");
+
+      ok(!isMenuCheckedFor(window1),
+        "RDM menu item is unchecked by default");
+
+      yield openRDM(tab);
+
+      ok(isMenuCheckedFor(window1),
+        "RDM menu item is checked with RDM open");
+
+      yield closeRDM(tab);
+
+      ok(!isMenuCheckedFor(window1),
+        "RDM menu item is unchecked with RDM closed");
+    });
+
+  yield BrowserTestUtils.closeWindow(window1);
+
+  is(window, getMostRecentBrowserWindow(),
+    "The original window is the active one");
+
+  ok(!isMenuCheckedFor(window),
+    "RDM menu item is unchecked");
+});