cros: Extract TrayBluetoothHelper from SystemTrayDelegateChromeOS

chrome/browser/ui/ash/system_tray_delegate_chromeos_browsertest_chromeos.cc

 // 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 "chrome/browser/ui/ash/system_tray_delegate_chromeos.h"
 
 #include <string>
 
 #include "ash/common/system/date/date_default_view.h"
 #include "ash/common/system/date/date_view.h"
 #include "ash/common/system/date/system_info_default_view.h"
 #include "ash/common/system/date/tray_date.h"
 #include "ash/common/system/date/tray_system_info.h"
 #include "ash/common/system/tray/system_tray.h"
+#include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "base/macros.h"
 #include "chrome/browser/chromeos/login/login_manager_test.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "components/prefs/pref_service.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/test/test_utils.h"
+#include "device/bluetooth/dbus/bluez_dbus_manager.h"
+#include "device/bluetooth/dbus/fake_bluetooth_adapter_client.h"
+
+using bluez::BluezDBusManager;
+using bluez::FakeBluetoothAdapterClient;
 
 namespace chromeos {
 
 namespace {
 
 // Because policy is not needed this test it is better to use e-mails that
 // are definitely not enterprise. This lets us to avoid faking of policy fetch
 // procedure.
 const char kUser1[] = "user1@gmail.com";
 const char kUser2[] = "user2@gmail.com";
@@ skipping 66 matching lines @@
   CreateDefaultView();
   EXPECT_EQ(base::k12HourClock, GetHourType());
 
   user_manager::UserManager::Get()->SwitchActiveUser(account_id1_);
   // Allow clock setting to be sent to ash over mojo.
   content::RunAllPendingInMessageLoop();
   CreateDefaultView();
   EXPECT_EQ(base::k24HourClock, GetHourType());
 }
 
+using SystemTrayDelegateBluetoothTest = InProcessBrowserTest;
+
+// Tests basic functionality of the Bluetooth interface.
+// TODO(jamescook): Delete this test when TrayBluetoothHelper moves to ash.

[msw, 2017/03/17 00:11:06]

nit: cite a bug?

[James Cook, 2017/03/17 04:02:57]

Done.

+IN_PROC_BROWSER_TEST_F(SystemTrayDelegateBluetoothTest, Basics) {
+  // Set Bluetooth discovery simulation delay to 0 so the test doesn't have to
+  // wait or use timers.
+  FakeBluetoothAdapterClient* adapter_client =
+      static_cast<FakeBluetoothAdapterClient*>(
+          BluezDBusManager::Get()->GetBluetoothAdapterClient());
+  adapter_client->SetSimulationIntervalMs(0);
+
+  ash::SystemTrayDelegate* delegate =
+      ash::WmShell::Get()->system_tray_delegate();
+  EXPECT_TRUE(delegate->GetBluetoothAvailable());
+  EXPECT_FALSE(delegate->GetBluetoothEnabled());
+  EXPECT_FALSE(delegate->GetBluetoothDiscovering());

[msw, 2017/03/17 00:11:05]

nit: also check IsBluetoothDiscovering like below?

[James Cook, 2017/03/17 04:02:57]

Done.

+
+  ash::BluetoothDeviceList devices;
+  delegate->GetAvailableBluetoothDevices(&devices);
+  // The devices are fake in tests, so don't assume any particular number.
+  EXPECT_FALSE(devices.empty());
+
+  // Turn Bluetooth on.
+  delegate->ToggleBluetooth();
+  content::RunAllPendingInMessageLoop();
+  EXPECT_TRUE(delegate->GetBluetoothEnabled());
+
+  delegate->BluetoothStartDiscovering();
+  content::RunAllPendingInMessageLoop();
+  EXPECT_TRUE(delegate->GetBluetoothDiscovering());
+  EXPECT_TRUE(delegate->IsBluetoothDiscovering());
+
+  delegate->BluetoothStopDiscovering();
+  content::RunAllPendingInMessageLoop();
+  EXPECT_FALSE(delegate->GetBluetoothDiscovering());
+  EXPECT_FALSE(delegate->IsBluetoothDiscovering());
+
+  // Turn Bluetooth off.
+  delegate->ToggleBluetooth();
+  content::RunAllPendingInMessageLoop();
+  EXPECT_FALSE(delegate->GetBluetoothEnabled());
+}
+
 }  // namespace chromeos