def run(self):
"""Actually runs a emulator, assuming `create` has already been called."""
if not self.process_runner:
raise EmulatorError(
'Attempted to `run` emulator before calling `create`')
logs.log('Starting emulator.')
self.process = self.process_runner.run(stdout=subprocess.PIPE,
stderr=subprocess.DEVNULL)
device_serial = None
while not device_serial:
line = self.process.popen.stdout.readline().decode()
match = DEVICE_SERIAL_RE.match(line)
if match:
device_serial = match.group(1)
# Close the pipe so we don't hang.
self.process.popen.stdout.close()
logs.log('Found serial ID: %s.' % device_serial)
environment.set_value('ANDROID_SERIAL', device_serial)
logs.log('Waiting on device')
adb.wait_for_device()
logs.log('Device is online')
def test_state_correct_after_wait(self): """Ensure that the function works correctly when a device is connected.""" adb.wait_for_device() self.assertEqual(adb.get_device_state(), 'device')
def test_wait_for_device(self):
"""Tests wait_for_device."""
adb.wait_for_device()
self.assertEqual(adb.get_device_state(), 'device')
def wait_for_battery_charge_if_needed():
"""Check device battery and make sure it is charged beyond minimum level and
temperature thresholds."""
# Battery levels are not applicable on GCE.
if adb.is_gce():
return
# Make sure device is online.
adb.wait_for_device()
# Skip battery check if done recently.
last_battery_check_time = persistent_cache.get_value(
LAST_BATTERY_CHECK_TIME_KEY,
constructor=datetime.datetime.utcfromtimestamp)
if last_battery_check_time and not dates.time_has_expired(
last_battery_check_time, seconds=BATTERY_CHECK_INTERVAL):
return
# Initialize variables.
battery_level_threshold = environment.get_value(
'LOW_BATTERY_LEVEL_THRESHOLD', LOW_BATTERY_LEVEL_THRESHOLD)
battery_temperature_threshold = environment.get_value(
'MAX_BATTERY_TEMPERATURE_THRESHOLD', MAX_BATTERY_TEMPERATURE_THRESHOLD)
device_restarted = False
while 1:
battery_information = get_battery_information()
if battery_information is None:
logs.log_error(
'Failed to get battery information, skipping check.')
return
battery_level = battery_information['level']
battery_temperature = battery_information['temperature']
logs.log(
'Battery information: level (%d%%), temperature (%.1f celsius).' %
(battery_level, battery_temperature))
if (battery_level >= battery_level_threshold
and battery_temperature <= battery_temperature_threshold):
persistent_cache.set_value(LAST_BATTERY_CHECK_TIME_KEY,
time.time())
return
logs.log('Battery in bad battery state, putting device in sleep mode.')
if not device_restarted:
reboot()
adb.disable_wifi()
device_restarted = True
# Change thresholds to expected levels (only if they were below minimum
# thresholds).
if battery_level < battery_level_threshold:
battery_level_threshold = EXPECTED_BATTERY_LEVEL
if battery_temperature > battery_temperature_threshold:
battery_temperature_threshold = EXPECTED_BATTERY_TEMPERATURE
# Stopping shell should help with shutting off a lot of services that would
# otherwise use up the battery. However, we need to turn it back on to get
# battery status information. Also, turn off display explicitly (needed for
# Nexus 9s).
turn_off_display_if_needed()
adb.stop_shell()
time.sleep(BATTERY_CHARGE_INTERVAL)
adb.start_shell()
