blob: e2d6a9c6508dff6dcf7403415e4162aae6433a6d [file] [log] [blame]
# Copyright (c) 2013 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.
"""A test to instruct the operator / BFT fixture to plug/unplug AC power."""
import threading
import time
import unittest
import factory_common # pylint: disable=unused-import
from cros.factory.device import device_utils
from cros.factory.test import factory
from cros.factory.test.fixture import bft_fixture
from cros.factory.test.i18n import test_ui as i18n_test_ui
from cros.factory.test import test_ui
from cros.factory.test import ui_templates
from cros.factory.utils.arg_utils import Arg
_TEST_TITLE_PLUG = i18n_test_ui.MakeI18nLabel('Connect AC')
_TEST_TITLE_UNPLUG = i18n_test_ui.MakeI18nLabel('Remove AC')
_PLUG_AC = lambda type: (
i18n_test_ui.MakeI18nLabel('Plug in the charger ({type})', type=type)
if type else i18n_test_ui.MakeI18nLabel('Plug in the charger'))
_UNPLUG_AC = i18n_test_ui.MakeI18nLabel('Unplug the charger.')
_PROBE_TIMES_ID = 'probed_times'
_PROBE_TIMES_MSG = lambda times, total: i18n_test_ui.MakeI18nLabel(
'Probed {times} / {total}', times=times, total=total)
_AC_STATUS_ID = 'ac_status'
_NO_AC = i18n_test_ui.MakeI18nLabel('No AC adapter')
_AC_TYPE_PROBING = i18n_test_ui.MakeI18nLabel('Identifying AC adapter...')
_AC_TYPE = i18n_test_ui.MakeI18nLabel('AC adapter type: ')
class ACPowerTest(unittest.TestCase):
"""A test to instruct the operator to plug/unplug AC power.
power_type: The type of the power. None to skip power type check.
online: True if expecting AC power. Otherwise, False.
bft_fixture: If assigned, it commands the BFT fixture to
plug/unplug an AC adapter.
retries: Maximum number of retries allowed to pass the test.
polling_period_secs: Polling period in seconds.
silent_warning: Skips first N charger type mismatch before giving a
ARGS = [
Arg('power_type', str, 'Type of the power source', optional=True),
Arg('online', bool, 'True if expecting AC power', default=True),
Arg('bft_fixture', dict, bft_fixture.TEST_ARG_HELP, optional=True),
Arg('retries', int,
'Maximum number of retries allowed to pass the test. '
'0 means only probe once. Default None means probe forever.',
Arg('polling_period_secs', (int, float),
'Polling period in seconds.', default=1),
Arg('silent_warning', int,
'Skips first N charger type mismatch before giving a warning. '
'Because EC needs about 1.6 seconds to identify charger type after '
'it is plugged in, it skips first N mismatched probe.',
def setUp(self):
self._power = device_utils.CreateDUTInterface().power
self._ui = test_ui.UI()
self._template = ui_templates.OneSection(self._ui)
self._template.SetTitle(_TEST_TITLE_PLUG if
instruction = (_PLUG_AC(self.args.power_type)
if else _UNPLUG_AC)
probe_count_message = ''
if self.args.retries is not None:
probe_count_message = _PROBE_TIMES_MSG(0, self.args.retries)
'%s<br><span id="%s">%s</span><div id="%s"></div>' %
(instruction, _PROBE_TIMES_ID, probe_count_message, _AC_STATUS_ID))
self._power_state = {}
self._done = threading.Event()
self._last_type = None
self._last_ac_present = None
self._skip_warning_remains = self.args.silent_warning
# Prepare fixture auto test if needed.
self.fixture = None
if self.args.bft_fixture:
self.fixture = bft_fixture.CreateBFTFixture(**self.args.bft_fixture)
def Done(self):
def UpdateACStatus(self, status):
self._ui.SetHTML(status, id=_AC_STATUS_ID)
def CheckCondition(self):
ac_present = self._power.CheckACPresent()
current_type = self._power.GetACType()
# Reset silent warning countdown when AC present status change.
# Also reset _last_type as we want to give a warning for each
# mismatched charger attached.
if self._last_ac_present != ac_present:
self._last_ac_present = ac_present
self._skip_warning_remains = self.args.silent_warning
self._last_type = None
if ac_present !=
if not ac_present:
return False
if self.args.power_type and self.args.power_type != current_type:
if self._skip_warning_remains > 0:
self._skip_warning_remains -= 1
elif self._last_type != current_type:
self.UpdateACStatus(_AC_TYPE + current_type)
'Expecting %s but see %s', self.args.power_type, current_type)
self._last_type = current_type
return False
return True
def runTest(self):
self._ui.Run(blocking=False, on_finish=self.Done)
if self.fixture:
num_probes = 0
while not self._done.is_set():
if self.CheckCondition():
if self.args.retries is not None:
# retries is set.
num_probes += 1
self._ui.SetHTML(_PROBE_TIMES_MSG(num_probes, self.args.retries),
if self.args.retries < num_probes:'Failed after probing %d times' % num_probes)
# Prevent busy polling.