Browser test for launching guest mode from the User Manager.

chrome/browser/profiles/profile_window_browsertest.cc

+// Copyright (c) 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/profiles/profile_window.h"
+
+#include "base/command_line.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/history/history_service.h"
+#include "chrome/browser/history/history_service_factory.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/search_engines/template_url_service_factory.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/browser_list.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/ui_test_utils.h"
+#include "components/history/core/browser/history_db_task.h"
+#include "components/search_engines/template_url_service.h"
+#include "components/signin/core/common/profile_management_switches.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/test/browser_test_utils.h"
+#include "content/public/test/test_utils.h"
+#include "net/test/spawned_test_server/spawned_test_server.h"
+
+namespace {
+
+// Code related to history borrowed from:
+// chrome/browser/history/history_browsertest.cc
+
+// Note: WaitableEvent is not used for synchronization between the main thread
+// and history backend thread because the history subsystem posts tasks back
+// to the main thread. Had we tried to Signal an event in such a task
+// and Wait for it on the main thread, the task would not run at all because
+// the main thread would be blocked on the Wait call, resulting in a deadlock.
+
+// A task to be scheduled on the history backend thread.
+// Notifies the main thread after all history backend thread tasks have run.
+class WaitForHistoryTask : public history::HistoryDBTask {
+ public:
+  WaitForHistoryTask() {}
+
+  bool RunOnDBThread(history::HistoryBackend* backend,
+                     history::HistoryDatabase* db) override {
+    return true;
+  }
+
+  void DoneRunOnMainThread() override { base::MessageLoop::current()->Quit(); }
+
+ private:
+  ~WaitForHistoryTask() override {}
+
+  DISALLOW_COPY_AND_ASSIGN(WaitForHistoryTask);
+};
+
+void WaitForHistoryBackendToRun(Profile* profile) {
+  base::CancelableTaskTracker task_tracker;
+  scoped_ptr<history::HistoryDBTask> task(new WaitForHistoryTask());
+  HistoryService* history = HistoryServiceFactory::GetForProfile(
+      profile, ServiceAccessType::EXPLICIT_ACCESS);
+  history->HistoryService::ScheduleDBTask(task.Pass(), &task_tracker);
+  content::RunMessageLoop();
+}
+
+}  // namespace
+
+class ProfileWindowBrowserTest : public InProcessBrowserTest {
+ public:
+  ProfileWindowBrowserTest() {}
+  ~ProfileWindowBrowserTest() override {}
+
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    InProcessBrowserTest::SetUpCommandLine(command_line);
+    switches::EnableNewAvatarMenuForTesting(
+        base::CommandLine::ForCurrentProcess());
+  }
+
+  Browser* OpenGuestBrowser();
+  void CloseBrowser(Browser* browser);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ProfileWindowBrowserTest);
+};
+
+Browser* ProfileWindowBrowserTest::OpenGuestBrowser() {
+  size_t num_browsers =
+      BrowserList::GetInstance(chrome::GetActiveDesktop())->size();
+
+  // Create a guest browser nicely. Using CreateProfile() and CreateBrowser()
+  // does incomplete initialization that would lead to
+  // SystemUrlRequestContextGetter being leaked.
+  content::WindowedNotificationObserver browser_creation_observer(
+      chrome::NOTIFICATION_BROWSER_WINDOW_READY,
+      content::NotificationService::AllSources());
+  profiles::SwitchToGuestProfile(chrome::GetActiveDesktop(),
+                                 ProfileManager::CreateCallback());
+
+  // RunUntilIdle() (racily) isn't sufficient to ensure browser creation, so
+  // listen for the notification.

[noms (inactive), 2015/02/23 17:57:56]

I would remove this MessaheLoop wait, maybe, if you're already waiting for the
observer. The comment makes me want to know why it's being racy, so it's a bit
confusing overall.

[Mike Lerman, 2015/02/23 18:09:42]

Done.

+  base::MessageLoop::current()->RunUntilIdle();
+  browser_creation_observer.Wait();
+  EXPECT_EQ(num_browsers + 1,
+            BrowserList::GetInstance(chrome::GetActiveDesktop())->size());
+
+  Profile* guest = g_browser_process->profile_manager()->GetProfileByPath(
+      ProfileManager::GetGuestProfilePath());
+  Browser* browser = chrome::FindAnyBrowser(
+      guest, true, chrome::GetActiveDesktop());
+  EXPECT_TRUE(browser);

[noms (inactive), 2015/02/23 17:57:56]

Should this be an ASSERT_TRUE instead?

[Mike Lerman, 2015/02/23 18:09:42]

You can't ASSERT in a method that returns something.

+
+  // When |browser| closes a BrowsingDataRemover will be created and executed.
+  // It needs a loaded TemplateUrlService or else it hangs on to a
+  // CallbackList::Subscription forever.
+  ui_test_utils::WaitForTemplateURLServiceToLoad(
+      TemplateURLServiceFactory::GetForProfile(guest));
+
+  return browser;
+}
+
+void ProfileWindowBrowserTest::CloseBrowser(Browser* browser) {
+  content::WindowedNotificationObserver window_close_observer(
+      chrome::NOTIFICATION_BROWSER_CLOSED,
+      content::Source<Browser>(browser));
+  browser->window()->Close();
+  window_close_observer.Wait();
+}
+
+IN_PROC_BROWSER_TEST_F(ProfileWindowBrowserTest, OpenGuestBrowser) {
+  OpenGuestBrowser();

[noms (inactive), 2015/02/23 17:57:56]

maybe add an expect_true that this isn't null? this test looks lonely :)

[Mike Lerman, 2015/02/23 18:09:42]

Done.

+}
+
+IN_PROC_BROWSER_TEST_F(ProfileWindowBrowserTest, GuestIsIncognito) {
+  Browser* guest_browser = OpenGuestBrowser();
+  EXPECT_TRUE(guest_browser->profile()->IsOffTheRecord());
+}
+
+IN_PROC_BROWSER_TEST_F(ProfileWindowBrowserTest, GuestIgnoresHistory) {
+  Browser* guest_browser = OpenGuestBrowser();
+
+  ui_test_utils::WaitForHistoryToLoad(HistoryServiceFactory::GetForProfile(
+      guest_browser->profile(), ServiceAccessType::EXPLICIT_ACCESS));
+
+  GURL test_url = ui_test_utils::GetTestUrl(
+        base::FilePath(base::FilePath::kCurrentDirectory),

[noms (inactive), 2015/02/23 17:57:56]

nit: too much indent

[Mike Lerman, 2015/02/23 18:09:42]

Bye bye Indent.

+        base::FilePath(FILE_PATH_LITERAL("title2.html")));
+
+  ui_test_utils::NavigateToURL(guest_browser, test_url);
+  WaitForHistoryBackendToRun(guest_browser->profile());
+
+  std::vector<GURL> urls =
+      ui_test_utils::HistoryEnumerator(guest_browser->profile()).urls();
+  ASSERT_EQ(0U, urls.size());
+}
+
+IN_PROC_BROWSER_TEST_F(ProfileWindowBrowserTest, GuestClearsCookies) {
+  Browser* guest_browser = OpenGuestBrowser();
+  Profile* guest_profile = guest_browser->profile();
+
+  ASSERT_TRUE(test_server()->Start());
+  GURL url(test_server()->GetURL("set-cookie?cookie1"));
+
+  // Before navigation there are no cookies at the URL.

[noms (inactive), 2015/02/23 17:57:56]

nit: s/at the/for the maybe? (here and below)

[Mike Lerman, 2015/02/23 18:09:42]

Done.

+  std::string cookie = content::GetCookies(guest_profile, url);
+  ASSERT_EQ("", cookie);
+
+  // After navigation there is a cookie at the URL.
+  ui_test_utils::NavigateToURL(guest_browser, url);
+  cookie = content::GetCookies(guest_profile, url);
+  EXPECT_EQ("cookie1", cookie);
+
+  CloseBrowser(guest_browser);
+
+  // Closing the browser has removed the cookie.
+  cookie = content::GetCookies(guest_profile, url);
+  ASSERT_EQ("", cookie);
+}
+
+IN_PROC_BROWSER_TEST_F(ProfileWindowBrowserTest, GuestCannotSignin) {
+  Browser* guest_browser = OpenGuestBrowser();
+
+  SigninManagerBase* signin_manager = SigninManagerFactory::GetForProfile(
+      guest_browser->profile());
+
+  // Guest profiles can't sign in without a SigninManager.
+  ASSERT_FALSE(signin_manager);
+}