def RunOnce(device, url, warmup, speculation_mode, delay_to_may_launch_url,
delay_to_launch_url, cold, chrome_args, reset_chrome_state):
"""Runs a test on a device once.
Args:
device: (DeviceUtils) device to run the tests on.
url: (str) URL to load.
warmup: (bool) Whether to call warmup.
speculation_mode: (str) Speculation Mode.
delay_to_may_launch_url: (int) Delay to mayLaunchUrl() in ms.
delay_to_launch_url: (int) Delay to launchUrl() in ms.
cold: (bool) Whether the page cache should be dropped.
chrome_args: ([str]) List of arguments to pass to Chrome.
reset_chrome_state: (bool) Whether to reset the Chrome local state before
the run.
Returns:
The output line (str), like this (one line only):
<warmup>,<prerender_mode>,<delay_to_may_launch_url>,<delay_to_launch>,
<intent_sent_ms>,<page_load_started_ms>,<page_load_finished_ms>,
<first_contentful_paint>
or None on error.
"""
if not device.HasRoot():
device.EnableRoot()
timeout_s = 20
logcat_timeout = int(timeout_s + delay_to_may_launch_url / 1000. +
delay_to_launch_url / 1000.) + 3
with device_setup.FlagReplacer(device, _COMMAND_LINE_PATH, chrome_args):
launch_intent = intent.Intent(
action='android.intent.action.MAIN',
package=_TEST_APP_PACKAGE_NAME,
activity='org.chromium.customtabs.test.MainActivity',
extras={
'url': str(url),
'warmup': warmup,
'speculation_mode': str(speculation_mode),
'delay_to_may_launch_url': delay_to_may_launch_url,
'delay_to_launch_url': delay_to_launch_url,
'timeout': timeout_s
})
result_line_re = re.compile(r'CUSTOMTABSBENCH.*: (.*)')
logcat_monitor = device.GetLogcatMonitor(clear=True)
logcat_monitor.Start()
device.ForceStop(_CHROME_PACKAGE)
device.ForceStop(_TEST_APP_PACKAGE_NAME)
if reset_chrome_state:
ResetChromeLocalState(device)
if cold:
cache_control.CacheControl(device).DropRamCaches()
device.StartActivity(launch_intent, blocking=True)
match = None
try:
match = logcat_monitor.WaitFor(result_line_re,
timeout=logcat_timeout)
except device_errors.CommandTimeoutError as _:
logging.warning('Timeout waiting for the result line')
logcat_monitor.Stop()
logcat_monitor.Close()
return match.group(1) if match is not None else None
def FlushEntireSystemCache(self):
cache = cache_control.CacheControl(self._device)
cache.DropRamCaches()
def drop_ram_caches(self):
"""Drop ran caches on device."""
cache = cache_control.CacheControl(self.device)
cache.DropRamCaches()
