Bug 1367621 - Regression test to ensure that the URL bar is focused when new tabs are opened in fullscreen mode. r=Felipe

MozReview-Commit-ID: 66Rl2U2Kdbl

--HG--
extra : rebase_source : 04c00eaa006db0b7369de3a9f3989e0e44d9145c

browser/base/content/test/newtab/browser.ini

@@ -28,6 +28,7 @@ skip-if = (os == "mac" && debug) # temporary skip-if due to increase in intermit
 subsuite = clipboard
 [browser_newtab_drop_preview.js]
 [browser_newtab_focus.js]
+[browser_newtab_fullscreen_focus.js]
 [browser_newtab_perwindow_private_browsing.js]
 [browser_newtab_reflow_load.js]
 support-files =

browser/base/content/test/newtab/browser_newtab_fullscreen_focus.js

@@ -0,0 +1,35 @@
+"use strict";
+
+function isFullscreenSizeMode() {
+  let sizemode = document.documentElement.getAttribute("sizemode");
+  return sizemode == "fullscreen";
+}
+
+/**
+ * Checks that the URL bar is correctly focused
+ * when a new tab is opened while in fullscreen
+ * mode.
+ */
+add_task(async function() {
+  gURLBar.blur();
+
+  Assert.ok(!window.fullScreen, "Should not start in fullscreen mode.");
+  BrowserFullScreen();
+  await BrowserTestUtils.waitForCondition(() => isFullscreenSizeMode());
+
+  registerCleanupFunction(async function() {
+    // Exit fullscreen if we're still in it.
+    if (window.fullScreen) {
+      BrowserFullScreen();
+      await BrowserTestUtils.waitForCondition(() => !isFullscreenSizeMode());
+    }
+  });
+
+  Assert.ok(window.fullScreen, "Should be in fullscreen mode now.");
+
+  let newTabOpened = BrowserTestUtils.waitForEvent(gBrowser, "TabSwitchDone");
+  BrowserOpenTab();
+  await newTabOpened;
+
+  Assert.ok(gURLBar.focused, "URL bar should be focused.");
+});