text: // Copyright 2014 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 "ash/login_status.h"
  #include "ash/shell.h"
  #include "ash/system/date/date_view.h"
  #include "ash/system/date/system_info_default_view.h"
  #include "ash/system/date/tray_system_info.h"
  #include "ash/system/tray/system_tray.h"
  #include "ash/system/tray/system_tray_test_api.h"
  #include "base/command_line.h"
  #include "base/location.h"
  #include "base/macros.h"
  #include "base/run_loop.h"
  #include "base/single_thread_task_runner.h"
  #include "base/threading/thread_task_runner_handle.h"
  #include "chrome/browser/browser_process.h"
  #include "chrome/browser/browser_process_platform_part.h"
  #include "chrome/browser/chromeos/login/ui/login_display_host.h"
  #include "chrome/browser/chromeos/policy/device_policy_cros_browser_test.h"
  #include "chrome/browser/chromeos/settings/cros_settings.h"
  #include "chrome/browser/chromeos/system/system_clock.h"
  #include "chrome/browser/lifetime/application_lifetime.h"
  #include "chromeos/chromeos_switches.h"
  #include "components/policy/proto/chrome_device_policy.pb.h"
  #include "content/public/test/test_utils.h"
  #include "testing/gtest/include/gtest/gtest.h"
  
  namespace em = enterprise_management;
  
  namespace chromeos {
  
  class SystemUse24HourClockPolicyTest
      : public policy::DevicePolicyCrosBrowserTest {
   public:
    SystemUse24HourClockPolicyTest() {
    }
  
    void SetUpCommandLine(base::CommandLine* command_line) override {
      command_line->AppendSwitch(switches::kLoginManager);
      command_line->AppendSwitch(chromeos::switches::kForceLoginManagerInTests);
    }
  
    void SetUpInProcessBrowserTestFixture() override {
      InstallOwnerKey();
      MarkAsEnterpriseOwned();
      DevicePolicyCrosBrowserTest::SetUpInProcessBrowserTestFixture();
    }
  
    void TearDownOnMainThread() override {
      // If the login display is still showing, exit gracefully.
      if (LoginDisplayHost::default_host()) {
        base::ThreadTaskRunnerHandle::Get()->PostTask(
            FROM_HERE, base::BindOnce(&chrome::AttemptExit));
        content::RunMessageLoop();
      }
    }
  
   protected:
    void RefreshPolicyAndWaitDeviceSettingsUpdated() {
      base::RunLoop run_loop;
      std::unique_ptr<CrosSettings::ObserverSubscription> observer =
          CrosSettings::Get()->AddSettingsObserver(
              kSystemUse24HourClock, run_loop.QuitWhenIdleClosure());
  
      RefreshDevicePolicy();
      run_loop.Run();
    }
  
    static bool SystemClockShouldUse24Hour() {
      return g_browser_process->platform_part()
          ->GetSystemClock()
          ->ShouldUse24HourClock();
    }
  
    static ash::TraySystemInfo* GetTraySystemInfo() {
      return ash::SystemTrayTestApi(ash::Shell::Get()->GetPrimarySystemTray())
          .tray_system_info();
    }
  
    static base::HourClockType TestGetPrimarySystemTrayTimeHourType() {
      const ash::TraySystemInfo* tray_system_info = GetTraySystemInfo();
      const ash::tray::TimeView* time_tray =
          tray_system_info->GetTimeTrayForTesting();
  
      return time_tray->GetHourTypeForTesting();
    }
  
    static bool TestPrimarySystemTrayHasDateDefaultView() {
      const ash::TraySystemInfo* tray_system_info = GetTraySystemInfo();
      const ash::SystemInfoDefaultView* system_info_default_view =
          tray_system_info->GetDefaultViewForTesting();
      return system_info_default_view != nullptr;
    }
  
    static void TestPrimarySystemTrayCreateDefaultView() {
      ash::TraySystemInfo* tray_system_info = GetTraySystemInfo();
      tray_system_info->CreateDefaultViewForTesting(
          ash::LoginStatus::NOT_LOGGED_IN);
    }
  
    static base::HourClockType TestGetPrimarySystemTrayDateHourType() {
      const ash::TraySystemInfo* tray_system_info = GetTraySystemInfo();
      const ash::SystemInfoDefaultView* system_info_default_view =
          tray_system_info->GetDefaultViewForTesting();
  
      return system_info_default_view->GetDateView()->GetHourTypeForTesting();
    }
  
   private:
    DISALLOW_COPY_AND_ASSIGN(SystemUse24HourClockPolicyTest);
  };
  
  IN_PROC_BROWSER_TEST_F(SystemUse24HourClockPolicyTest, CheckUnset) {
    bool system_use_24hour_clock;
    EXPECT_FALSE(CrosSettings::Get()->GetBoolean(kSystemUse24HourClock,
                                                 &system_use_24hour_clock));
  
    EXPECT_FALSE(SystemClockShouldUse24Hour());
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayTimeHourType());
    EXPECT_FALSE(TestPrimarySystemTrayHasDateDefaultView());
  
    TestPrimarySystemTrayCreateDefaultView();
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayDateHourType());
  }
  
  IN_PROC_BROWSER_TEST_F(SystemUse24HourClockPolicyTest, CheckTrue) {
    bool system_use_24hour_clock = true;
    EXPECT_FALSE(CrosSettings::Get()->GetBoolean(kSystemUse24HourClock,
                                                 &system_use_24hour_clock));
    EXPECT_FALSE(TestPrimarySystemTrayHasDateDefaultView());
  
    EXPECT_FALSE(SystemClockShouldUse24Hour());
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayTimeHourType());
    TestPrimarySystemTrayCreateDefaultView();
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayDateHourType());
  
    em::ChromeDeviceSettingsProto& proto(device_policy()->payload());
    proto.mutable_use_24hour_clock()->set_use_24hour_clock(true);
    RefreshPolicyAndWaitDeviceSettingsUpdated();
  
    system_use_24hour_clock = false;
    EXPECT_TRUE(CrosSettings::Get()->GetBoolean(kSystemUse24HourClock,
                                                &system_use_24hour_clock));
    EXPECT_TRUE(system_use_24hour_clock);
    EXPECT_TRUE(SystemClockShouldUse24Hour());
    EXPECT_EQ(base::k24HourClock, TestGetPrimarySystemTrayTimeHourType());
  
    EXPECT_TRUE(TestPrimarySystemTrayHasDateDefaultView());
    EXPECT_EQ(base::k24HourClock, TestGetPrimarySystemTrayDateHourType());
  }
  
  IN_PROC_BROWSER_TEST_F(SystemUse24HourClockPolicyTest, CheckFalse) {
    bool system_use_24hour_clock = true;
    EXPECT_FALSE(CrosSettings::Get()->GetBoolean(kSystemUse24HourClock,
                                                 &system_use_24hour_clock));
    EXPECT_FALSE(TestPrimarySystemTrayHasDateDefaultView());
  
    EXPECT_FALSE(SystemClockShouldUse24Hour());
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayTimeHourType());
    TestPrimarySystemTrayCreateDefaultView();
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayDateHourType());
  
    em::ChromeDeviceSettingsProto& proto(device_policy()->payload());
    proto.mutable_use_24hour_clock()->set_use_24hour_clock(false);
    RefreshPolicyAndWaitDeviceSettingsUpdated();
  
    system_use_24hour_clock = true;
    EXPECT_TRUE(CrosSettings::Get()->GetBoolean(kSystemUse24HourClock,
                                                &system_use_24hour_clock));
    EXPECT_FALSE(system_use_24hour_clock);
    EXPECT_FALSE(SystemClockShouldUse24Hour());
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayTimeHourType());
    EXPECT_TRUE(TestPrimarySystemTrayHasDateDefaultView());
    EXPECT_EQ(base::k12HourClock, TestGetPrimarySystemTrayDateHourType());
  }
  
  }  // namespace chromeos
  