blob: 27c1c3d7b8ebaece5be1f2b6cf4d57b0fc594716 [file] [log] [blame]
# Copyright (c) 2011 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Provides an interface to communicate with the device via the adb command.
Assumes adb binary is currently on system path.
python wait-for-pm
import collections
import datetime
import logging
import optparse
import os
import pexpect
import re
import subprocess
import sys
import tempfile
import time
# is under ../../third_party/android/testrunner/
sys.path.append(os.path.join(os.path.abspath(os.path.dirname(__file__)), '..',
'..', 'third_party', 'android', 'testrunner'))
import adb_interface
import cmd_helper
import errors # is under ../../third_party/android/testrunner/
from run_tests_helper import IsRunningAsBuildbot
# Pattern to search for the next whole line of pexpect output and capture it
# into a match group. We can't use ^ and $ for line start end with pexpect,
# see for explanation why.
PEXPECT_LINE_RE = re.compile('\n([^\r]*)\r')
# Set the adb shell prompt to be a unique marker that will [hopefully] not
# appear at the start of any line of a command's output.
SHELL_PROMPT = '~+~PQ\x17RS~+~'
# This only works for single core devices.
SCALING_GOVERNOR = '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'
DROP_CACHES = '/proc/sys/vm/drop_caches'
# Java properties file
LOCAL_PROPERTIES_PATH = '/data/local.prop'
# Property in /data/local.prop that controls Java assertions.
JAVA_ASSERT_PROPERTY = 'dalvik.vm.enableassertions'
BOOT_COMPLETE_RE = re.compile(
re.escape('android.intent.action.MEDIA_MOUNTED path: /mnt/sdcard')
+ '|' + re.escape('PowerManagerService: bootCompleted'))
# Keycode "enum" suitable for passing to AndroidCommands.SendKey().
def GetEmulators():
"""Returns a list of emulators. Does not filter by status (e.g. offline).
Both devices starting with 'emulator' will be returned in below output:
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
027c10494100b4d7 device
emulator-5554 offline
emulator-5558 device
re_device = re.compile('^emulator-[0-9]+', re.MULTILINE)
devices = re_device.findall(cmd_helper.GetCmdOutput(['adb', 'devices']))
return devices
def GetAttachedDevices():
"""Returns a list of attached, online android devices.
If a preferred device has been set with ANDROID_SERIAL, it will be first in
the returned list.
Example output:
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
027c10494100b4d7 device
emulator-5554 offline
re_device = re.compile('^([a-zA-Z0-9_:.-]+)\tdevice$', re.MULTILINE)
devices = re_device.findall(cmd_helper.GetCmdOutput(['adb', 'devices']))
preferred_device = os.environ.get("ANDROID_SERIAL")
if preferred_device in devices:
devices.insert(0, preferred_device)
return devices
def _GetHostFileInfo(file_name):
"""Returns a tuple containing size and modified UTC time for file_name."""
# The time accuracy on device is only to minute level, remove the second and
# microsecond from host results.
utc_time = datetime.datetime.utcfromtimestamp(os.path.getmtime(file_name))
time_delta = datetime.timedelta(seconds=utc_time.second,
return os.path.getsize(file_name), utc_time - time_delta
def ListHostPathContents(path):
"""Lists files in all subdirectories of |path|.
path: The path to list.
A dict of {"name": (size, lastmod), ...}.
if os.path.isfile(path):
return {os.path.basename(path): _GetHostFileInfo(path)}
ret = {}
for root, dirs, files in os.walk(path):
for d in dirs:
if d.startswith('.'):
dirs.remove(d) # Prune the dir for subsequent iterations.
for f in files:
if f.startswith('.'):
full_file_name = os.path.join(root, f)
file_name = os.path.relpath(full_file_name, path)
ret[file_name] = _GetHostFileInfo(full_file_name)
return ret
def _GetFilesFromRecursiveLsOutput(path, ls_output, re_file, utc_offset=None):
"""Gets a list of files from `ls` command output.
Python's os.walk isn't used because it doesn't work over adb shell.
path: The path to list.
ls_output: A list of lines returned by an `ls -lR` command.
re_file: A compiled regular expression which parses a line into named groups
consisting of at minimum "filename", "date", "time", "size" and
optionally "timezone".
utc_offset: A 5-character string of the form +HHMM or -HHMM, where HH is a
2-digit string giving the number of UTC offset hours, and MM is a
2-digit string giving the number of UTC offset minutes. If the input
utc_offset is None, will try to look for the value of "timezone" if it
is specified in re_file.
A dict of {"name": (size, lastmod), ...} where:
name: The file name relative to |path|'s directory.
size: The file size in bytes (0 for directories).
lastmod: The file last modification date in UTC.
re_directory = re.compile('^%s/(?P<dir>[^:]+):$' % re.escape(path))
path_dir = os.path.dirname(path)
current_dir = ''
files = {}
for line in ls_output:
directory_match = re_directory.match(line)
if directory_match:
current_dir ='dir')
file_match = re_file.match(line)
if file_match:
filename = os.path.join(current_dir,'filename'))
if filename.startswith(path_dir):
filename = filename[len(path_dir)+1:]
lastmod = datetime.datetime.strptime('date') + ' ' +'time')[:5],
'%Y-%m-%d %H:%M')
if not utc_offset and 'timezone' in re_file.groupindex:
utc_offset ='timezone')
if isinstance(utc_offset, str) and len(utc_offset) == 5:
utc_delta = datetime.timedelta(hours=int(utc_offset[1:3]),
if utc_offset[0:1] == '-':
utc_delta = -utc_delta;
lastmod -= utc_delta
files[filename] = (int('size')), lastmod)
return files
def GetLogTimestamp(log_line):
"""Returns the timestamp of the given |log_line|."""
return datetime.datetime.strptime(log_line[:18], '%m-%d %H:%M:%S.%f')
except (ValueError, IndexError):
logging.critical('Error reading timestamp from ' + log_line)
return None
class AndroidCommands(object):
"""Helper class for communicating with Android device via adb.
device: If given, adb commands are only send to the device of this ID.
Otherwise commands are sent to all attached devices.
wait_for_pm: If true, issues an adb wait-for-device command.
def __init__(self, device=None, wait_for_pm=False):
self._adb = adb_interface.AdbInterface()
if device:
if wait_for_pm:
self._logcat = None
self._original_governor = None
self._pushed_files = []
def Adb(self):
"""Returns our AdbInterface to avoid us wrapping all its methods."""
return self._adb
def WaitForDevicePm(self):
"""Blocks until the device's package manager is available.
To workaround http://b/5201039, we restart the shell and retry if the
package manager isn't back after 120 seconds.
errors.WaitForResponseTimedOutError after max retries reached.
last_err = None
retries = 3
while retries:
return # Success
except errors.WaitForResponseTimedOutError as e:
last_err = e
logging.warning('Restarting and retrying after timeout: %s' % str(e))
retries -= 1
raise last_err # Only reached after max retries, re-raise the last error.
def SynchronizeDateTime(self):
"""Synchronize date/time between host and device."""
self._adb.SendShellCommand('date -u %f' % time.time())
def RestartShell(self):
"""Restarts the shell on the device. Does not block for it to return."""
def Reboot(self, full_reboot=True):
"""Reboots the device and waits for the package manager to return.
full_reboot: Whether to fully reboot the device or just restart the shell.
# TODO(torne): hive can't reboot the device either way without breaking the
# connection; work out if we can handle this better
if os.environ.get('USING_HIVE'):
logging.warning('Ignoring reboot request as we are on hive')
if full_reboot:
def Uninstall(self, package):
"""Uninstalls the specified package from the device.
package: Name of the package to remove.
uninstall_command = 'uninstall %s' % package'>>> $' + uninstall_command)
self._adb.SendCommand(uninstall_command, timeout_time=60)
def Install(self, package_file_path):
"""Installs the specified package to the device.
package_file_path: Path to .apk file to install.
assert os.path.isfile(package_file_path)
install_command = 'install %s' % package_file_path'>>> $' + install_command)
self._adb.SendCommand(install_command, timeout_time=2*60)
# It is tempting to turn this function into a generator, however this is not
# possible without using a private (local) adb_shell instance (to ensure no
# other command interleaves usage of it), which would defeat the main aim of
# being able to reuse the adb shell instance across commands.
def RunShellCommand(self, command, timeout_time=20, log_result=True):
"""Send a command to the adb shell and return the result.
command: String containing the shell command to send. Must not include
the single quotes as we use them to escape the whole command.
timeout_time: Number of seconds to wait for command to respond before
retrying, used by AdbInterface.SendShellCommand.
log_result: Boolean to indicate whether we should log the result of the
shell command.
list containing the lines of output received from running the command
"""'>>> $' + command)
if "'" in command: logging.warning(command + " contains ' quotes")
result = self._adb.SendShellCommand("'%s'" % command,
if log_result:'\n>>> '.join(result))
return result
def KillAll(self, process):
"""Android version of killall, connected via adb.
process: name of the process to kill off
the number of processess killed
pids = self.ExtractPid(process)
if pids:
self.RunShellCommand('kill ' + ' '.join(pids))
return len(pids)
def StartActivity(self, package, activity,
action='android.intent.action.VIEW', data=None,
extras=None, trace_file_name=None):
"""Starts |package|'s activity on the device.
package: Name of package to start (e.g. '').
activity: Name of activity (e.g. '.Main' or '').
data: Data string to pass to activity (e.g. '').
extras: Dict of extras to pass to activity.
trace_file_name: If used, turns on and saves the trace to this file name.
cmd = 'am start -a %s -n %s/%s' % (action, package, activity)
if data:
cmd += ' -d "%s"' % data
if extras:
cmd += ' -e'
for key in extras:
cmd += ' %s %s' % (key, extras[key])
if trace_file_name:
cmd += ' -S -P ' + trace_file_name
def EnableAdbRoot(self):
"""Enable root on the device."""
def CloseApplication(self, package):
"""Attempt to close down the application, using increasing violence.
package: Name of the process to kill off, e.g.
self.RunShellCommand('am force-stop ' + package)
def ClearApplicationState(self, package):
"""Closes and clears all state for the given |package|."""
self.RunShellCommand('rm -r /data/data/%s/cache/*' % package)
self.RunShellCommand('rm -r /data/data/%s/files/*' % package)
self.RunShellCommand('rm -r /data/data/%s/shared_prefs/*' % package)
def SendKeyEvent(self, keycode):
"""Sends keycode to the device.
keycode: Numeric keycode to send (see "enum" at top of file).
self.RunShellCommand('input keyevent %d' % keycode)
def PushIfNeeded(self, local_path, device_path):
"""Pushes |local_path| to |device_path|.
Works for files and directories. This method skips copying any paths in
|test_data_paths| that already exist on the device with the same timestamp
and size.
All pushed files can be removed by calling RemovePushedFiles().
assert os.path.exists(local_path)
# If the path contents are the same, there's nothing to do.
local_contents = ListHostPathContents(local_path)
device_contents = self.ListPathContents(device_path)
# Only compare the size and timestamp if only copying a file because
# the filename on device can be renamed.
if os.path.isfile(local_path):
assert len(local_contents) == 1
is_equal = local_contents.values() == device_contents.values()
is_equal = local_contents == device_contents
if is_equal:'%s is up-to-date. Skipping file push.' % device_path)
# They don't match, so remove everything first and then create it.
if os.path.isdir(local_path):
self.RunShellCommand('rm -r %s' % device_path, timeout_time=2*60)
self.RunShellCommand('mkdir -p %s' % device_path)
# NOTE: We can't use adb_interface.Push() because it hardcodes a timeout of
# 60 seconds which isn't sufficient for a lot of users of this method.
push_command = 'push %s %s' % (local_path, device_path)'>>> $' + push_command)
self._adb.SendCommand(push_command, timeout_time=30*60)
def GetFileContents(self, filename):
"""Gets contents from the file specified by |filename|."""
return self.RunShellCommand('if [ -f "' + filename + '" ]; then cat "' +
filename + '"; fi')
def SetFileContents(self, filename, contents):
"""Writes |contents| to the file specified by |filename|."""
with tempfile.NamedTemporaryFile() as f:
self._adb.Push(, filename)
def RemovePushedFiles(self):
"""Removes all files pushed with PushIfNeeded() from the device."""
for p in self._pushed_files:
self.RunShellCommand('rm -r %s' % p, timeout_time=2*60)
def ListPathContents(self, path):
"""Lists files in all subdirectories of |path|.
path: The path to list.
A dict of {"name": (size, lastmod), ...}.
# Example output:
# /foo/bar:
# -rw-r----- 1 user group 102 2011-05-12 12:29:54.131623387 +0100 baz.txt
re_file = re.compile('^-(?P<perms>[^\s]+)\s+'
return _GetFilesFromRecursiveLsOutput(
path, self.RunShellCommand('ls -lR %s' % path), re_file,
self.RunShellCommand('date +%z')[0])
def SetupPerformanceTest(self):
"""Sets up performance tests."""
# Disable CPU scaling to reduce noise in tests
if not self._original_governor:
self._original_governor = self.RunShellCommand('cat ' + SCALING_GOVERNOR)
self.RunShellCommand('echo performance > ' + SCALING_GOVERNOR)
def TearDownPerformanceTest(self):
"""Tears down performance tests."""
if self._original_governor:
self.RunShellCommand('echo %s > %s' % (self._original_governor[0],
self._original_governor = None
def SetJavaAssertsEnabled(self, enable):
"""Sets or removes the device java assertions property.
enable: If True the property will be set.
True if the file was modified (reboot is required for it to take effect).
# First ensure the desired property is persisted.
temp_props_file = tempfile.NamedTemporaryFile()
properties = ''
if self._adb.Pull(LOCAL_PROPERTIES_PATH,
properties = file(
re_search = re.compile(r'^\s*' + re.escape(JAVA_ASSERT_PROPERTY) +
r'\s*=\s*all\s*$', re.MULTILINE)
if enable != bool(, properties)):
re_replace = re.compile(r'^\s*' + re.escape(JAVA_ASSERT_PROPERTY) +
r'\s*=\s*\w+\s*$', re.MULTILINE)
properties = re.sub(re_replace, '', properties)
if enable:
properties += '\n%s=all\n' % JAVA_ASSERT_PROPERTY
file(, 'w').write(properties)
# Next, check the current runtime value is what we need, and
# if not, set it and report that a reboot is required.
was_set = 'all' in self.RunShellCommand('getprop ' + JAVA_ASSERT_PROPERTY)
if was_set == enable:
return False
self.RunShellCommand('setprop %s "%s"' % (JAVA_ASSERT_PROPERTY,
enable and 'all' or ''))
return True
def DropRamCaches(self):
"""Drops the filesystem ram caches for performance testing."""
self.RunShellCommand('echo 3 > ' + DROP_CACHES)
def StartMonitoringLogcat(self, clear=True, timeout=10, logfile=None,
"""Starts monitoring the output of logcat, for use with WaitForLogMatch.
clear: If True the existing logcat output will be cleared, to avoiding
matching historical output lurking in the log.
timeout: How long WaitForLogMatch will wait for the given match
filters: A list of logcat filters to be used.
if clear:
self.RunShellCommand('logcat -c')
args = ['logcat', '-v', 'threadtime']
if filters:
# Spawn logcat and syncronize with it.
for _ in range(4):
self._logcat = pexpect.spawn('adb', args, timeout=timeout,
self.RunShellCommand('log startup_sync')
if self._logcat.expect(['startup_sync', pexpect.EOF,
pexpect.TIMEOUT]) == 0:
logging.critical('Error reading from logcat: ' + str(self._logcat.match))
def GetMonitoredLogCat(self):
"""Returns an "adb logcat" command as created by pexpected.spawn."""
if not self._logcat:
return self._logcat
def WaitForLogMatch(self, search_re):
"""Blocks until a line containing |line_re| is logged or a timeout occurs.
search_re: The compiled re to search each line for.
The re match object.
if not self._logcat:
self.StartMonitoringLogcat(clear=False)'<<< Waiting for logcat:' + str(search_re.pattern))
t0 = time.time()
while True:
# Note this will block for upto the timeout _per log line_, so we need
# to calculate the overall timeout remaining since t0.
time_remaining = t0 + self._logcat.timeout - time.time()
if time_remaining < 0: raise pexpect.TIMEOUT(self._logcat)
self._logcat.expect(PEXPECT_LINE_RE, timeout=time_remaining)
line =
search_match =
if search_match:
return search_match'<<< Skipped Logcat Line:' + str(line))
except pexpect.TIMEOUT:
raise pexpect.TIMEOUT(
'Timeout (%ds) exceeded waiting for pattern "%s" (tip: use -vv '
'to debug)' %
(self._logcat.timeout, search_re.pattern))
def StartRecordingLogcat(self, clear=True, filters=['*:v']):
"""Starts recording logcat output to eventually be saved as a string.
This call should come before some series of tests are run, with either
StopRecordingLogcat or SearchLogcatRecord following the tests.
clear: True if existing log output should be cleared.
filters: A list of logcat filters to be used.
if clear:
self._adb.SendCommand('logcat -c')
logcat_command = 'adb logcat -v threadtime %s' % ' '.join(filters)
self.logcat_process = subprocess.Popen(logcat_command, shell=True,
def StopRecordingLogcat(self):
"""Stops an existing logcat recording subprocess and returns output.
The logcat output as a string or an empty string if logcat was not
being recorded at the time.
if not self.logcat_process:
return ''
# Cannot evaluate directly as 0 is a possible value.
# Better to read the self.logcat_process.stdout before killing it,
# Otherwise the communicate may return incomplete output due to pipe break.
if self.logcat_process.poll() == None:
(output, _) = self.logcat_process.communicate()
self.logcat_process = None
return output
def SearchLogcatRecord(self, record, message, thread_id=None, proc_id=None,
log_level=None, component=None):
"""Searches the specified logcat output and returns results.
This method searches through the logcat output specified by record for a
certain message, narrowing results by matching them against any other
specified criteria. It returns all matching lines as described below.
record: A string generated by Start/StopRecordingLogcat to search.
message: An output string to search for.
thread_id: The thread id that is the origin of the message.
proc_id: The process that is the origin of the message.
log_level: The log level of the message.
component: The name of the component that would create the message.
A list of dictionaries represeting matching entries, each containing keys
thread_id, proc_id, log_level, component, and message.
if thread_id:
thread_id = str(thread_id)
if proc_id:
proc_id = str(proc_id)
results = []
reg = re.compile('(\d+)\s+(\d+)\s+([A-Z])\s+([A-Za-z]+)\s*:(.*)$',
log_list = reg.findall(record)
for (tid, pid, log_lev, comp, msg) in log_list:
if ((not thread_id or thread_id == tid) and
(not proc_id or proc_id == pid) and
(not log_level or log_level == log_lev) and
(not component or component == comp) and msg.find(message) > -1):
match = dict({'thread_id': tid, 'proc_id': pid,
'log_level': log_lev, 'component': comp,
'message': msg})
return results
def ExtractPid(self, process_name):
"""Extracts Process Ids for a given process name from Android Shell.
process_name: name of the process on the device.
List of all the process ids (as strings) that match the given name.
pids = []
for line in self.RunShellCommand('ps'):
data = line.split()
if process_name in data[-1]: # name is in the last column
pids.append(data[1]) # PID is in the second column
except IndexError:
return pids
def GetIoStats(self):
"""Gets cumulative disk IO stats since boot (for all processes).
Dict of {num_reads, num_writes, read_ms, write_ms} or None if there
was an error.
# Field definitions.
device = 2
num_reads_issued_idx = 3
num_reads_merged_idx = 4
num_sectors_read_idx = 5
ms_spent_reading_idx = 6
num_writes_completed_idx = 7
num_writes_merged_idx = 8
num_sectors_written_idx = 9
ms_spent_writing_idx = 10
num_ios_in_progress_idx = 11
ms_spent_doing_io_idx = 12
ms_spent_doing_io_weighted_idx = 13
for line in self.RunShellCommand('cat /proc/diskstats'):
fields = line.split()
if fields[device] == 'mmcblk0':
return {
'num_reads': int(fields[num_reads_issued_idx]),
'num_writes': int(fields[num_writes_completed_idx]),
'read_ms': int(fields[ms_spent_reading_idx]),
'write_ms': int(fields[ms_spent_writing_idx]),
logging.warning('Could not find disk IO stats.')
return None
def GetMemoryUsage(self, package):
"""Returns the memory usage for all processes whose name contains |pacakge|.
name: A string holding process name to lookup pid list for.
Dict of {metric:usage_kb}, summed over all pids associated with |name|.
The metric keys retruned are: Size, Rss, Pss, Shared_Clean, Shared_Dirty,
Private_Clean, Private_Dirty, Referenced, Swap, KernelPageSize,
usage_dict = collections.defaultdict(int)
pid_list = self.ExtractPid(package)
# We used to use the showmap command, but it is currently broken on
# stingray so it's easier to just parse /proc/<pid>/smaps directly.
memory_stat_re = re.compile('^(?P<key>\w+):\s+(?P<value>\d+) kB$')
for pid in pid_list:
for line in self.RunShellCommand('cat /proc/%s/smaps' % pid,
match = re.match(memory_stat_re, line)
if match: usage_dict['key')] += int('value'))
if not usage_dict or not any(usage_dict.values()):
# Presumably the process died between ps and showmap.
logging.warning('Could not find memory usage for pid ' + str(pid))
return usage_dict
def UnlockDevice(self):
"""Unlocks the screen of the device."""
# Make sure a menu button event will actually unlock the screen.
if IsRunningAsBuildbot():
assert self.RunShellCommand('getprop ro.test_harness')[0].strip() == '1'
# The following keyevent unlocks the screen if locked.
# If the screen wasn't locked the previous command will bring up the menu,
# which this will dismiss. Otherwise this shouldn't change anything.
def main(argv):
option_parser = optparse.OptionParser()
option_parser.add_option('-w', '--wait_for_pm', action='store_true',
default=False, dest='wait_for_pm',
help='Waits for Device Package Manager to become available')
option_parser.add_option('--enable_asserts', dest='set_asserts',
action='store_true', default=None,
help='Sets the dalvik.vm.enableassertions property to "all"')
option_parser.add_option('--disable_asserts', dest='set_asserts',
action='store_false', default=None,
help='Removes the dalvik.vm.enableassertions property')
options, args = option_parser.parse_args(argv)
commands = AndroidCommands(wait_for_pm=options.wait_for_pm)
if options.set_asserts != None:
if commands.SetJavaAssertsEnabled(options.set_asserts):
if __name__ == '__main__':