[CrOS multi-profiles] Restore user sessions after crash

chrome/browser/chromeos/login/crash_restore_browsertest.cc

+// Copyright (c) 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 <string>
+#include <vector>
+
+#include "base/command_line.h"
+#include "chrome/browser/chromeos/cros/cros_in_process_browser_test.h"
+#include "chrome/browser/chromeos/login/user.h"
+#include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/common/chrome_switches.h"
+#include "chromeos/chromeos_switches.h"
+#include "chromeos/dbus/cryptohome_client.h"
+#include "chromeos/dbus/fake_session_manager_client.h"
+#include "chromeos/dbus/mock_dbus_thread_manager_without_gmock.h"
+#include "chromeos/dbus/session_manager_client.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+
+namespace chromeos {
+
+namespace {
+
+const char kUserId1[] = "user1@example.com";
+const char kUserId2[] = "user2@example.com";
+const char kUserId3[] = "user3@example.com";
+
+}  // namespace
+
+class CrashRestoreSimpleTest : public CrosInProcessBrowserTest {
+ protected:
+  CrashRestoreSimpleTest() {}
+
+  virtual ~CrashRestoreSimpleTest() {}
+
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    command_line->AppendSwitch(::switches::kMultiProfiles);
+    command_line->AppendSwitchASCII(switches::kLoginUser, kUserId1);
+    command_line->AppendSwitchASCII(
+        switches::kLoginProfile,
+        CryptohomeClient::GetStubSanitizedUsername(kUserId1));
+  }
+
+  virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
+    // Redirect session_manager DBus calls to FakeSessionManagerClient.
+    MockDBusThreadManagerWithoutGMock* dbus_thread_manager =
+        new MockDBusThreadManagerWithoutGMock();
+    session_manager_client_ =
+        dbus_thread_manager->fake_session_manager_client();
+    DBusThreadManager::InitializeForTesting(dbus_thread_manager);
+    session_manager_client_->StartSession(kUserId1);
+  }
+
+  FakeSessionManagerClient* session_manager_client_;
+};
+
+IN_PROC_BROWSER_TEST_F(CrashRestoreSimpleTest, RestoreSessionForOneUser) {
+  UserManager* user_manager = UserManager::Get();
+  User* user = user_manager->GetActiveUser();
+  ASSERT_TRUE(user);
+  EXPECT_EQ(kUserId1, user->email());
+  EXPECT_EQ(CryptohomeClient::GetStubSanitizedUsername(kUserId1),
+            user->username_hash());
+  EXPECT_EQ(1UL, user_manager->GetLoggedInUsers().size());
+}
+
+class CrashRestoreComplexTest : public CrashRestoreSimpleTest {
+ protected:
+  CrashRestoreComplexTest() {}
+
+  virtual ~CrashRestoreComplexTest() {}
+
+  virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
+    CrashRestoreSimpleTest::SetUpInProcessBrowserTestFixture();
+
+    // Additional configuration for complex test.
+    session_manager_client_->StartSession(kUserId2);
+    session_manager_client_->StartSession(kUserId3);
+  }
+};
+
+IN_PROC_BROWSER_TEST_F(CrashRestoreComplexTest, RestoreSessionForThreeUsers) {
+  UserManager* user_manager = UserManager::Get();
+
+  // User that is last in the user sessions map becomes active. This behavior
+  // will become better defined once each user gets a separate user desktop.
+  User* user = user_manager->GetActiveUser();
+  ASSERT_TRUE(user);
+  EXPECT_EQ(kUserId3, user->email());
+  EXPECT_EQ(CryptohomeClient::GetStubSanitizedUsername(kUserId3),
+            user->username_hash());
+  const UserList& users = user_manager->GetLoggedInUsers();
+  EXPECT_EQ(3UL, users.size());
+
+  // User that becomes active moves to the beginning of the list.
+  EXPECT_EQ(kUserId3, users[0]->email());
+  EXPECT_EQ(CryptohomeClient::GetStubSanitizedUsername(kUserId3),
+            users[0]->username_hash());
+  EXPECT_EQ(kUserId2, users[1]->email());
+  EXPECT_EQ(CryptohomeClient::GetStubSanitizedUsername(kUserId2),
+            users[1]->username_hash());
+  EXPECT_EQ(kUserId1, users[2]->email());
+  EXPECT_EQ(CryptohomeClient::GetStubSanitizedUsername(kUserId1),
+            users[2]->username_hash());
+}
+
+}  // namespace chromeos