The Tor Browser: build/mobile/b2gautomation.py@141e0f1194b1 (annotated)

build/mobile/b2gautomation.py@141e0f1194b1 (annotated)

build/mobile/b2gautomation.py

Wed, 31 Dec 2014 07:16:47 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:16:47 +0100
branch: TOR_BUG_9701
changeset 3: 141e0f1194b1
permissions: -rw-r--r--

Revert simplistic fix pending revisit of Mozilla integration attempt.

 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this file,
 # You can obtain one at http://mozilla.org/MPL/2.0/.
 import mozcrash
 import threading
 import os
 import Queue
 import re
 import shutil
 import tempfile
 import time
 import traceback
 from automation import Automation
 from mozprocess import ProcessHandlerMixin
 class StdOutProc(ProcessHandlerMixin):
     """Process handler for b2g which puts all output in a Queue.
     """
     def __init__(self, cmd, queue, **kwargs):
         self.queue = queue
         kwargs.setdefault('processOutputLine', []).append(self.handle_output)
         ProcessHandlerMixin.__init__(self, cmd, **kwargs)
     def handle_output(self, line):
         self.queue.put_nowait(line)
 class B2GRemoteAutomation(Automation):
     _devicemanager = None
     def __init__(self, deviceManager, appName='', remoteLog=None,
                  marionette=None, context_chrome=True):
         self._devicemanager = deviceManager
         self._appName = appName
         self._remoteProfile = None
         self._remoteLog = remoteLog
         self.marionette = marionette
         self.context_chrome = context_chrome
         self._is_emulator = False
         self.test_script = None
         self.test_script_args = None
         # Default our product to b2g
         self._product = "b2g"
         self.lastTestSeen = "b2gautomation.py"
         # Default log finish to mochitest standard
         self.logFinish = 'INFO SimpleTest FINISHED'
         Automation.__init__(self)
     def setEmulator(self, is_emulator):
         self._is_emulator = is_emulator
     def setDeviceManager(self, deviceManager):
         self._devicemanager = deviceManager
     def setAppName(self, appName):
         self._appName = appName
     def setRemoteProfile(self, remoteProfile):
         self._remoteProfile = remoteProfile
     def setProduct(self, product):
         self._product = product
     def setRemoteLog(self, logfile):
         self._remoteLog = logfile
     def installExtension(self, extensionSource, profileDir, extensionID=None):
         # Bug 827504 - installing special-powers extension separately causes problems in B2G
         if extensionID != "special-powers@mozilla.org":
             Automation.installExtension(self, extensionSource, profileDir, extensionID)
     # Set up what we need for the remote environment
     def environment(self, env=None, xrePath=None, crashreporter=True, debugger=False):
         # Because we are running remote, we don't want to mimic the local env
         # so no copying of os.environ
         if env is None:
             env = {}
         if crashreporter:
             env['MOZ_CRASHREPORTER'] = '1'
             env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
         # We always hide the results table in B2G; it's much slower if we don't.
         env['MOZ_HIDE_RESULTS_TABLE'] = '1'
         return env
     def waitForNet(self):
         active = False
         time_out = 0
         while not active and time_out < 40:
             data = self._devicemanager._runCmd(['shell', '/system/bin/netcfg']).stdout.readlines()
             data.pop(0)
             for line in data:
                 if (re.search(r'UP\s+(?:[0-9]{1,3}\.){3}[0-9]{1,3}', line)):
                     active = True
                     break
             time_out += 1
             time.sleep(1)
         return active
     def checkForCrashes(self, directory, symbolsPath):
         crashed = False
         remote_dump_dir = self._remoteProfile + '/minidumps'
         print "checking for crashes in '%s'" % remote_dump_dir
         if self._devicemanager.dirExists(remote_dump_dir):
             local_dump_dir = tempfile.mkdtemp()
             self._devicemanager.getDirectory(remote_dump_dir, local_dump_dir)
             try:
                 crashed = mozcrash.check_for_crashes(local_dump_dir, symbolsPath, test_name=self.lastTestSeen)
             except:
                 traceback.print_exc()
             finally:
                 shutil.rmtree(local_dump_dir)
                 self._devicemanager.removeDir(remote_dump_dir)
         return crashed
     def buildCommandLine(self, app, debuggerInfo, profileDir, testURL, extraArgs):
         # if remote profile is specified, use that instead
         if (self._remoteProfile):
             profileDir = self._remoteProfile
         cmd, args = Automation.buildCommandLine(self, app, debuggerInfo, profileDir, testURL, extraArgs)
         return app, args
     def waitForFinish(self, proc, utilityPath, timeout, maxTime, startTime,
                       debuggerInfo, symbolsPath):
         """ Wait for tests to finish (as evidenced by a signature string
             in logcat), or for a given amount of time to elapse with no
             output.
         """
         timeout = timeout or 120
         while True:
             currentlog = proc.getStdoutLines(timeout)
             if currentlog:
                 print currentlog
                 # Match the test filepath from the last TEST-START line found in the new
                 # log content. These lines are in the form:
                 # ... INFO TEST-START | /filepath/we/wish/to/capture.html\n
                 testStartFilenames = re.findall(r"TEST-START \| ([^\s]*)", currentlog)
                 if testStartFilenames:
                     self.lastTestSeen = testStartFilenames[-1]
                 if hasattr(self, 'logFinish') and self.logFinish in currentlog:
                     return 0
             else:
                 self.log.info("TEST-UNEXPECTED-FAIL | %s | application timed "
                               "out after %d seconds with no output",
                               self.lastTestSeen, int(timeout))
                 return 1
     def getDeviceStatus(self, serial=None):
         # Get the current status of the device.  If we know the device
         # serial number, we look for that, otherwise we use the (presumably
         # only) device shown in 'adb devices'.
         serial = serial or self._devicemanager._deviceSerial
         status = 'unknown'
         for line in self._devicemanager._runCmd(['devices']).stdout.readlines():
             result = re.match('(.*?)\t(.*)', line)
             if result:
                 thisSerial = result.group(1)
                 if not serial or thisSerial == serial:
                     serial = thisSerial
                     status = result.group(2)
         return (serial, status)
     def restartB2G(self):
         # TODO hangs in subprocess.Popen without this delay
         time.sleep(5)
         self._devicemanager._checkCmd(['shell', 'stop', 'b2g'])
         # Wait for a bit to make sure B2G has completely shut down.
         time.sleep(10)
         self._devicemanager._checkCmd(['shell', 'start', 'b2g'])
         if self._is_emulator:
             self.marionette.emulator.wait_for_port()
     def rebootDevice(self):
         # find device's current status and serial number
         serial, status = self.getDeviceStatus()
         # reboot!
         self._devicemanager._runCmd(['shell', '/system/bin/reboot'])
         # The above command can return while adb still thinks the device is
         # connected, so wait a little bit for it to disconnect from adb.
         time.sleep(10)
         # wait for device to come back to previous status
         print 'waiting for device to come back online after reboot'
         start = time.time()
         rserial, rstatus = self.getDeviceStatus(serial)
         while rstatus != 'device':
             if time.time() - start > 120:
                 # device hasn't come back online in 2 minutes, something's wrong
                 raise Exception("Device %s (status: %s) not back online after reboot" % (serial, rstatus))
             time.sleep(5)
             rserial, rstatus = self.getDeviceStatus(serial)
         print 'device:', serial, 'status:', rstatus
     def Process(self, cmd, stdout=None, stderr=None, env=None, cwd=None):
         # On a desktop or fennec run, the Process method invokes a gecko
         # process in which to the tests.  For B2G, we simply
         # reboot the device (which was configured with a test profile
         # already), wait for B2G to start up, and then navigate to the
         # test url using Marionette.  There doesn't seem to be any way
         # to pass env variables into the B2G process, but this doesn't
         # seem to matter.
         # reboot device so it starts up with the mochitest profile
         # XXX:  We could potentially use 'stop b2g' + 'start b2g' to achieve
         # a similar effect; will see which is more stable while attempting
         # to bring up the continuous integration.
         if not self._is_emulator:
             self.rebootDevice()
             time.sleep(5)
             #wait for wlan to come up
             if not self.waitForNet():
                 raise Exception("network did not come up, please configure the network" +
                                 " prior to running before running the automation framework")
         # stop b2g
         self._devicemanager._runCmd(['shell', 'stop', 'b2g'])
         time.sleep(5)
         # relaunch b2g inside b2g instance
         instance = self.B2GInstance(self._devicemanager, env=env)
         time.sleep(5)
         # Set up port forwarding again for Marionette, since any that
         # existed previously got wiped out by the reboot.
         if not self._is_emulator:
             self._devicemanager._checkCmd(['forward',
                                            'tcp:%s' % self.marionette.port,
                                            'tcp:%s' % self.marionette.port])
         if self._is_emulator:
             self.marionette.emulator.wait_for_port()
         else:
             time.sleep(5)
         # start a marionette session
         session = self.marionette.start_session()
         if 'b2g' not in session:
             raise Exception("bad session value %s returned by start_session" % session)
         if self._is_emulator:
             # Disable offline status management (bug 777145), otherwise the network
             # will be 'offline' when the mochitests start.  Presumably, the network
             # won't be offline on a real device, so we only do this for emulators.
             self.marionette.set_context(self.marionette.CONTEXT_CHROME)
             self.marionette.execute_script("""
                 Components.utils.import("resource://gre/modules/Services.jsm");
                 Services.io.manageOfflineStatus = false;
                 Services.io.offline = false;
                 """)
         if self.context_chrome:
             self.marionette.set_context(self.marionette.CONTEXT_CHROME)
         else:
             self.marionette.set_context(self.marionette.CONTEXT_CONTENT)
         # run the script that starts the tests
         if self.test_script:
             if os.path.isfile(self.test_script):
                 script = open(self.test_script, 'r')
                 self.marionette.execute_script(script.read(), script_args=self.test_script_args)
                 script.close()
             elif isinstance(self.test_script, basestring):
                 self.marionette.execute_script(self.test_script, script_args=self.test_script_args)
         else:
             # assumes the tests are started on startup automatically
             pass
         return instance
     # be careful here as this inner class doesn't have access to outer class members
     class B2GInstance(object):
         """Represents a B2G instance running on a device, and exposes
            some process-like methods/properties that are expected by the
            automation.
         """
         def __init__(self, dm, env=None):
             self.dm = dm
             self.env = env or {}
             self.stdout_proc = None
             self.queue = Queue.Queue()
             # Launch b2g in a separate thread, and dump all output lines
             # into a queue.  The lines in this queue are
             # retrieved and returned by accessing the stdout property of
             # this class.
             cmd = [self.dm._adbPath]
             if self.dm._deviceSerial:
                 cmd.extend(['-s', self.dm._deviceSerial])
             cmd.append('shell')
             for k, v in self.env.iteritems():
                 cmd.append("%s=%s" % (k, v))
             cmd.append('/system/bin/b2g.sh')
             proc = threading.Thread(target=self._save_stdout_proc, args=(cmd, self.queue))
             proc.daemon = True
             proc.start()
         def _save_stdout_proc(self, cmd, queue):
             self.stdout_proc = StdOutProc(cmd, queue)
             self.stdout_proc.run()
             if hasattr(self.stdout_proc, 'processOutput'):
                 self.stdout_proc.processOutput()
             self.stdout_proc.wait()
             self.stdout_proc = None
         @property
         def pid(self):
             # a dummy value to make the automation happy
             return 0
         def getStdoutLines(self, timeout):
             # Return any lines in the queue used by the
             # b2g process handler.
             lines = []
             # get all of the lines that are currently available
             while True:
                 try:
                     lines.append(self.queue.get_nowait())
                 except Queue.Empty:
                     break
             # wait 'timeout' for any additional lines
             try:
                 lines.append(self.queue.get(True, timeout))
             except Queue.Empty:
                 pass
             return '\n'.join(lines)
         def wait(self, timeout=None):
             # this should never happen
             raise Exception("'wait' called on B2GInstance")
         def kill(self):
             # this should never happen
             raise Exception("'kill' called on B2GInstance")

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build/mobile/b2gautomation.py@141e0f1194b1 (annotated)

build/mobile/b2gautomation.py