| # Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import time |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros import chrome |
| from autotest_lib.client.cros.bluetooth import bluetooth_device_xmlrpc_server |
| from autotest_lib.client.cros.power import power_test |
| |
| class power_Idle(power_test.power_Test): |
| """class for power_Idle test. |
| |
| Collects power stats when machine is idle, also compares power stats between |
| when bluetooth adapter is on and off. |
| """ |
| version = 1 |
| |
| def initialize(self): |
| super(power_Idle, self).initialize(seconds_period=10.) |
| |
| def run_once(self, idle_time=120, bt_warmup_time=20): |
| """Collect power stats when bluetooth adapter is on or off. |
| |
| """ |
| bt_device = bluetooth_device_xmlrpc_server \ |
| .BluetoothDeviceXmlRpcDelegate() |
| |
| with chrome.Chrome(): |
| if not bt_device.set_powered(False): |
| raise error.TestFail('Cannot turn off bluetooth adapter.') |
| |
| self.start_measurements() |
| time.sleep(idle_time) |
| self.checkpoint_measurements('bluetooth_adapter_off') |
| |
| # Turn on bluetooth adapter. |
| # If we cannot start bluetoothd, fail gracefully and still write |
| # data with bluetooth adapter off to file, as we are interested in |
| # just that data too. start_bluetoothd() already logs the error so |
| # not logging any error here. |
| if not bt_device.start_bluetoothd(): |
| return |
| if not bt_device.set_powered(True): |
| logging.warning('Cannot turn on bluetooth adapter.') |
| return |
| time.sleep(bt_warmup_time) |
| if not bt_device._is_powered_on(): |
| logging.warning('Bluetooth adapter is off.') |
| return |
| t1 = time.time() |
| time.sleep(idle_time) |
| self.checkpoint_measurements('bluetooth_adapter_on', t1) |
| bt_device.set_powered(False) |
| bt_device.stop_bluetoothd() |
