Quick & dirty example of a WebUIBrowserTest using LoginManagerTestHelper.

chrome/browser/chromeos/login/login_manager_test.cc

 // Copyright 2013 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/chromeos/login/login_manager_test.h"
 
-#include "base/prefs/scoped_user_pref_update.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/chromeos/login/auth/user_context.h"
-#include "chrome/browser/chromeos/login/existing_user_controller.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
-#include "chrome/browser/chromeos/login/users/user.h"
-#include "chrome/browser/chromeos/login/users/user_manager.h"
-#include "chrome/common/chrome_switches.h"
-#include "chromeos/chromeos_switches.h"
-#include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
-#include "content/public/test/browser_test_utils.h"
-#include "content/public/test/test_utils.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
 LoginManagerTest::LoginManagerTest(bool should_launch_browser)
     : should_launch_browser_(should_launch_browser),
       web_contents_(NULL) {
   set_exit_when_last_browser_closes(false);
+  login_manager_test_helper_.reset(new LoginManagerTestHelper);
+}
+
+LoginManagerTest::~LoginManagerTest() {}
+
+void LoginManagerTest::SetUpOnMainThread() {
+  login_manager_test_helper_->WaitForLoginWebUI();
+  InitializeWebContents();
 }
 
 void LoginManagerTest::CleanUpOnMainThread() {
-  if (LoginDisplayHostImpl::default_host())
-    LoginDisplayHostImpl::default_host()->Finalize();
-  base::MessageLoop::current()->RunUntilIdle();
+  login_manager_test_helper_->CloseLoginWebUI();
 }
 
 void LoginManagerTest::SetUpCommandLine(CommandLine* command_line) {
-  command_line->AppendSwitch(chromeos::switches::kLoginManager);
-  command_line->AppendSwitch(chromeos::switches::kForceLoginManagerInTests);
-  command_line->AppendSwitch(::switches::kMultiProfiles);
+  login_manager_test_helper_->SetUpCommandLine(command_line);
 }
 
 void LoginManagerTest::SetUpInProcessBrowserTestFixture() {
-  mock_login_utils_ = new testing::NiceMock<MockLoginUtils>();
-  mock_login_utils_->DelegateToFake();
-  mock_login_utils_->GetFakeLoginUtils()->set_should_launch_browser(
-      should_launch_browser_);
-  LoginUtils::Set(mock_login_utils_);
-}
-
-void LoginManagerTest::SetUpOnMainThread() {
-  content::WindowedNotificationObserver(
-      chrome::NOTIFICATION_LOGIN_OR_LOCK_WEBUI_VISIBLE,
-      content::NotificationService::AllSources()).Wait();
-  InitializeWebContents();
+  login_manager_test_helper_->SetUpLoginUtils(should_launch_browser_);
 }
 
 void LoginManagerTest::RegisterUser(const std::string& username) {
-  ListPrefUpdate users_pref(g_browser_process->local_state(), "LoggedInUsers");
-  users_pref->AppendIfNotPresent(new base::StringValue(username));
+  login_manager_test_helper_->RegisterUser(username);
 }
 
 void LoginManagerTest::SetExpectedCredentials(const std::string& username,
                                               const std::string& password) {
-  login_utils().GetFakeLoginUtils()->SetExpectedCredentials(username, password);
+  login_manager_test_helper_->SetExpectedCredentials(username, password);
 }
 
 bool LoginManagerTest::TryToLogin(const std::string& username,
                                   const std::string& password) {
-  if (!AddUserToSession(username, password))
-    return false;
-  if (const User* active_user = UserManager::Get()->GetActiveUser())
-    return active_user->email() == username;
-  return false;
+  return login_manager_test_helper_->TryToLogIn(username, password);
 }
 
 bool LoginManagerTest::AddUserToSession(const std::string& username,
                                         const std::string& password) {
-  ExistingUserController* controller =
-      ExistingUserController::current_controller();
-  if (!controller) {
-    ADD_FAILURE();
-    return false;
-  }
-  UserContext user_context(username);
-  user_context.SetPassword(password);
-  controller->Login(user_context);
-  content::WindowedNotificationObserver(
-      chrome::NOTIFICATION_SESSION_STARTED,
-      content::NotificationService::AllSources()).Wait();
-  const UserList& logged_users = UserManager::Get()->GetLoggedInUsers();
-  for (UserList::const_iterator it = logged_users.begin();
-       it != logged_users.end(); ++it) {
-    if ((*it)->email() == username)
-      return true;
-  }
-  return false;
+  return login_manager_test_helper_->AddUserToSession(username, password);
 }
 
 void LoginManagerTest::LoginUser(const std::string& username) {
-  SetExpectedCredentials(username, "password");
-  EXPECT_TRUE(TryToLogin(username, "password"));
+  login_manager_test_helper_->LogInUser(username);
 }
 
 void LoginManagerTest::AddUser(const std::string& username) {
-  SetExpectedCredentials(username, "password");
-  EXPECT_TRUE(AddUserToSession(username, "password"));
+  login_manager_test_helper_->AddUser(username);
 }
 
 void LoginManagerTest::JSExpect(const std::string& expression) {
   js_checker_.ExpectTrue(expression);
 }
 
+MockLoginUtils& LoginManagerTest::login_utils() {
+  return login_manager_test_helper_->mock_login_utils();
+}
+
 void LoginManagerTest::InitializeWebContents() {
-    LoginDisplayHost* host = LoginDisplayHostImpl::default_host();
-    EXPECT_TRUE(host != NULL);
+  LoginDisplayHost* host = LoginDisplayHostImpl::default_host();
+  EXPECT_TRUE(host != NULL);
 
-    content::WebContents* web_contents =
-        host->GetWebUILoginView()->GetWebContents();
-    EXPECT_TRUE(web_contents != NULL);
-    set_web_contents(web_contents);
-    js_checker_.set_web_contents(web_contents);
-  }
+  content::WebContents* web_contents =
+      host->GetWebUILoginView()->GetWebContents();
+  EXPECT_TRUE(web_contents != NULL);
+  set_web_contents(web_contents);
+  js_checker_.set_web_contents(web_contents);
+}
 
 }  // namespace chromeos