def suspend_resume(self, suspend_time=10):
"""Suspends the DUT for a given time in second.
@param suspend_time: Suspend time in second.
"""
sys_power.do_suspend(suspend_time)
return True
def _test_wol_magic_packet(self):
"""Check the Wake-on-LAN (WOL) magic packet capabilities of a device.
Raises:
error.TestError if WOL functionality fails
"""
# Magic number WOL supported
capname = 'Supports Wake-on'
if self._caps[capname][0].find('g') != -1:
logging.info("%s support magic number WOL", self._ethname)
else:
raise error.TestError('%s should support magic number WOL' %
self._ethname)
# Check that WOL works
if self._caps['Wake-on'][0] != 'g':
utils.system_output("ethtool -s %s wol g" % self._ethname)
self._restore_wol = True
# Set RTC as backup to WOL
before_secs = rtc.get_seconds()
alarm_secs = before_secs + self._suspend_secs + self._threshold_secs
rtc.set_wake_alarm(alarm_secs)
sys_power.do_suspend(self._suspend_secs)
after_secs = rtc.get_seconds()
# flush RTC as it may not work subsequently if wake was not RTC
rtc.set_wake_alarm(0)
suspended_secs = after_secs - before_secs
if suspended_secs >= (self._suspend_secs + self._threshold_secs):
raise error.TestError("Device woke due to RTC not WOL")
def suspend_and_resume(self, seconds=MIN_SLEEP_INTERVAL):
"""Suspends for N seconds."""
sleep_seconds = min(seconds, MIN_SLEEP_INTERVAL)
suspend_time = rtc.get_seconds()
sys_power.do_suspend(sleep_seconds)
logging.debug('and we\'re back... %ds elapsed.',
rtc.get_seconds() - suspend_time)
def run_once(self):
"""Run a series of tests supplied by the control file.
Handles iterations by adding tags with the iteration#.
Normally runs each test once after each suspend. If enable_baseline
is True then run an initial pass through the tests before any suspend.
The test runs a series
"""
if self.iteration is not None and self.iteration > 1:
test_tag = '%03d' % self.iteration
else:
test_tag = ''
if self._enable_baseline:
for t in self._tests:
self.job.run_test(t,
tag=test_tag + 'preSuspend',
disable_sysinfo=True)
time.sleep(random.randint(0, 3))
sys_power.do_suspend(max(self._min_suspend_s, MIN_ALLOWED_SUSPEND_S))
for t in self._tests:
self.job.run_test(t,
tag=test_tag + 'postSuspend',
disable_sysinfo=True)
def do_suspend(seconds):
"""Suspend DUT using the power manager.
@param seconds: The number of seconds to suspend the device.
"""
return sys_power.do_suspend(seconds)
def run_once(self, doctest=False):
"""
Run the test.
:param doctest: If true we will just run our doctests. We'll set these
globals to help our tests:
- _testobj: An instance of this object.
- _info_io: A StringIO that's stuffed into logging.info
so we can see what was written there.
...
"""
if doctest:
import doctest, inspect, StringIO
global _testobj, _info_io
# Keep a backup of _get_regid_to_val() since tests will clobber.
old_get_regid_to_val = self._get_regid_to_val
# Mock out logging.info to help tests.
_info_io = StringIO.StringIO()
old_logging_info = logging.info
logging.info = lambda fmt, *args: _info_io.write(fmt % args)
# Stash an object in a global to help tests
_testobj = self
try:
failure_count, test_count = doctest.testmod(
inspect.getmodule(self), optionflags=doctest.ELLIPSIS)
finally:
logging.info = old_logging_info
# Technically don't need to clean this up, but let's be nice.
self._get_regid_to_val = old_get_regid_to_val
logging.info("Doctest ran %d tests, had %d failures", test_count,
failure_count)
return
cpuinfo = self._parse_cpu_info(utils.read_file('/proc/cpuinfo'))
for cpu_id in sorted(cpuinfo.keys()):
self._check_one_cpu(cpuinfo[cpu_id])
sys_power.do_suspend(self.SECS_TO_SUSPEND)
for cpu_id in sorted(cpuinfo.keys()):
self._check_one_cpu(cpuinfo[cpu_id])
def _autoconnect_cellular(self):
"""Verify that the DUT is able to autoconnect to cellular network."""
logging.debug('_autoconnect_cellular')
service = self._find_cellular_service()
logging.debug('Cellular service: %s', service)
if service['ConnectionState'] == 'NotConnected':
self._connect_to_cellular_network(service)
self._set_autoconnect(service)
logging.debug('Suspend and resume device')
sys_power.do_suspend(20)
service = self._find_cellular_service()
utils.poll_for_condition(
lambda: self._is_cellular_network_connected(service),
exception=error.TestFail('Network not connected after suspend '
'and resume.'),
sleep_interval=1,
timeout=60)
logging.debug('Autoconnect works after suspend/resume.')
def suspend_with_youtube(self, tab, video_url):
"""
Suspends kernel while video is running in browser.
@param tab: Object to the browser tab
@param video_url: Object to video url
"""
tab.WaitForDocumentReadyStateToBeInteractiveOrBetter()
logging.info('video url is %s', video_url)
tab.EvaluateJavaScript('play("%s")' % video_url)
tab.WaitForJavaScriptExpression('typeof player != "undefined"', 10)
self.check_video_is_playing(tab)
time.sleep(2)
try:
sys_power.do_suspend(10)
except Exception as e:
logging.error(e)
raise error.TestFail('====Kernel suspend failed====')
time.sleep(2)
self.check_video_is_playing(tab)
def os_suspend(self):
"""Function to suspend ChromeOS using sys_power."""
sys_power.do_suspend(5)
# Sleep
time.sleep(5)
def run_once(self,
test_hours=None,
sample_hours=None,
percent_initial_charge_min=0.2,
max_milliwatts_standby=None):
if test_hours <= sample_hours:
raise error.TestFail(
"Test hours must be greater than sample hours")
# If we're measuring <= 6min of S3 then the S0 time is not negligible.
# Note, reasonable rule of thumb is S0 idle is ~10-20 times S3 power.
if sample_hours < self._min_sample_hours:
raise error.TestFail("Must suspend more than %.2f hours" % \
sample_hours)
# Query initial power status
power_stats = power_status.get_status()
power_stats.assert_battery_state(percent_initial_charge_min)
charge_start = power_stats.battery[0].charge_now
voltage_start = power_stats.battery[0].voltage_now
max_hours = charge_start * voltage_start / \
(max_milliwatts_standby / 1000)
if max_hours < test_hours:
raise error.TestFail('Battery not charged adequately for test')
elapsed_hours = 0
while elapsed_hours < test_hours:
charge_before = power_stats.battery[0].charge_now
before_suspend_secs = rtc.get_seconds()
sys_power.do_suspend(sample_hours * 3600)
after_suspend_secs = rtc.get_seconds()
power_stats.refresh()
if power_stats.percent_current_charge() < self._percent_min_charge:
logging.warning(
"Battery percent = %.2f%%. Too low to continue")
break
# check that the RTC slept the correct amount of time as there could
# potentially be another wake source that would spoil the test.
actual_hours = (after_suspend_secs - before_suspend_secs) / 3600.0
logging.debug("actual_hours = %.4f", actual_hours)
percent_diff = math.fabs((actual_hours - sample_hours) /
((actual_hours + sample_hours) / 2) * 100)
if percent_diff > 2:
err_str = "Requested S3 time and actual varied by %.2f%%." \
% percent_diff
raise error.TestFail(err_str)
# Check resulting charge consumption
charge_used = charge_before - power_stats.battery[0].charge_now
logging.debug("charge_used = %.6f", charge_used)
elapsed_hours += actual_hours
logging.debug("elapsed_hours = %.4f", elapsed_hours)
charge_end = power_stats.battery[0].charge_now
voltage_end = power_stats.battery[0].voltage_now
standby_hours = power_stats.battery[0].charge_full_design / \
(charge_start - charge_end) * elapsed_hours
energy_used = charge_start * voltage_start - charge_end * voltage_end
if energy_used <= 0:
raise error.TestError("Energy used reading is suspect.")
standby_milliwatts = energy_used / elapsed_hours * 1000
results = {}
results['milliwatts_standby_power'] = standby_milliwatts
results['hours_standby_time'] = standby_hours
self.write_perf_keyval(results)
# need to sleep for some time to allow network connection to return
time.sleep(10)
def run_once(self, mount_cycles=10, filter_dict={'bus':'usb'}):
"""
@param mount_cycles: how many times to mount/unount Default: 10.
@param filter_dict: storage dictionary filter.
Default: match any device connected on the USB bus.
"""
# wait_for_device() returns (device_dictionary,
# time_spent_looking_for_it), and only the dictionary is relevant for
# this test
storage = self.wait_for_device(filter_dict, cycles=1,
mount_volume=True)[0]
if not os.path.ismount(storage['mountpoint']):
raise error.TestFail('filesystem %s mount failed' % filter_dict)
storage_filter = {'fs_uuid': storage['fs_uuid']}
# We cannot use autotemp.tempfile since we should close the descriptors
# everytime the storage device is un-mounted.
self._tmpfile = os.path.join(storage['mountpoint'],
'tempfile_usb_mount.tmp')
while mount_cycles:
mount_cycles -= 1
# Create a 1MiB random file and checksum it.
storage_mod.create_file(self._tmpfile, 1*1024*1024)
chksum = storage_mod.checksum_file(self._tmpfile)
logging.debug('storage to umount %s', storage)
# Umount the volume.
self.scanner.umount_volume(storage_dict=storage)
storage = self.wait_for_device(storage_filter,
mount_volume=False)[0]
if os.path.ismount(storage['mountpoint']):
raise error.TestFail('filesystem %s unmount failed ' %
storage_filter)
# Mount the volume back.
self.scanner.mount_volume(storage_dict=storage)
storage = self.wait_for_device(storage_filter,
mount_volume=False)[0]
if not os.path.ismount(storage['mountpoint']):
raise error.TestFail('filesystem %s mount failed' %
storage_filter)
# Check that the created file exists and has the same content.
if not os.path.isfile(self._tmpfile):
raise error.TestFail('%s: file not present after remounting' %
self._tmpfile)
if chksum != storage_mod.checksum_file(self._tmpfile):
raise error.TestFail('%s: file content changed after '
'remounting' % self._tmpfile)
# Mount it, suspend and verify that after suspend-to-ram the
# device is still mounted
self.scanner.mount_volume(storage_dict=storage)
storage = self.wait_for_device(storage_filter, mount_volume=False)[0]
if not os.path.ismount(storage['mountpoint']):
raise error.TestFail('filesystem %s mount failed ' % storage)
sys_power.do_suspend(self.SECS_TO_SUSPEND)
# mount_volume=False because we don't want the method to mount if
# unmonted: we need to check its actual status right after suspend
storage = self.wait_for_device(storage_filter, mount_volume=False)[0]
if not os.path.ismount(storage['mountpoint']):
raise error.TestFail('filesystem %s not mounted after suspend' %
storage_filter)
if not os.path.isfile(self._tmpfile):
raise error.TestFail('%s: file not present anymore after '
'remounting' % self._tmpfile)
if chksum != storage_mod.checksum_file(self._tmpfile):
raise error.TestFail('%s: file content changed after remounting' %
self._tmpfile)
def suspend_to_ram(secs_to_suspend=5):
logging.info('Scheduling wakeup in %d seconds\n', secs_to_suspend)
sys_power.do_suspend(secs_to_suspend)
logging.info('Woke up at %d', rtc.get_seconds())
