Python client.MarionetteClient类代码示例

    def __init__(self, host='localhost', port=2828, emulator=False,
                 connectToRunningEmulator=False, homedir=None,
                 baseurl=None, noWindow=False):
        self.host = host
        self.port = self.local_port = port
        self.session = None
        self.window = None
        self.emulator = None
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow

        if emulator:
            self.emulator = Emulator(homedir=homedir, noWindow=self.noWindow)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

 def __init__(self, host='localhost', port=2626):
     self.host = host
     self.port = port
     self.client = MarionetteClient(self.host, self.port)
     self.actor = 'marionette'
     self.session = None
     self.window = None

    def __init__(self, host='localhost', port=2828, b2gbin=False,
                 emulator=None, connectToRunningEmulator=False,
                 homedir=None, baseurl=None, noWindow=False, logcat_dir=None):
        self.host = host
        self.port = self.local_port = port
        self.b2gbin = b2gbin
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir

        if b2gbin:
            self.b2ginstance = B2GInstance(host=self.host, port=self.port, b2gbin=self.b2gbin)
            self.b2ginstance.start()
            assert(self.b2ginstance.wait_for_port())
        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir, logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

    def __init__(self, host='localhost', port=2828, bin=None, profile=None,
                 emulator=None, sdcard=None, emulatorBinary=None,
                 emulatorImg=None, emulator_res=None, gecko_path=None,
                 connectToRunningEmulator=False, homedir=None, baseurl=None,
                 noWindow=False, logcat_dir=None, busybox=None, symbols_path=None):
        self.host = host
        self.port = self.local_port = port
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self._test_name = None
        self.symbols_path = symbols_path

        if bin:
            port = int(self.port)
            if not Marionette.is_port_available(port, host=self.host):
                ex_msg = "%s:%d is unavailable." % (self.host, port)
                raise MarionetteException(message=ex_msg)
            self.instance = GeckoInstance(host=self.host, port=self.port,
                                          bin=self.bin, profile=self.profile)
            self.instance.start()
            assert(self.wait_for_port())

        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     sdcard=sdcard,
                                     emulatorBinary=emulatorBinary,
                                     userdata=emulatorImg,
                                     res=emulator_res)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir,
                                     logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.setup(self,
                                gecko_path=gecko_path,
                                busybox=busybox)

    def connect(self):
        """ When using ADB port forwarding, the ADB server will actually accept
            connections even though there isn't a listening socket open on the
            device. Here we add a retry loop since we have to restart the debug
            server / b2g process for update tests
        """
        for i in range(self.MAX_RETRIES):
            try:
                MarionetteClient.connect(self, timeout=self.CONNECT_TIMEOUT)
                break
            except:
                if i == self.MAX_RETRIES - 1:
                    raise

                time.sleep(self.RETRY_TIMEOUT)
                self.runner.port_forward()

        # Upon success, reset the socket timeout to something more reasonable
        self.sock.settimeout(self.SEND_TIMEOUT)

    def __init__(self, host='localhost', port=2828, bin=None, profile=None,
                 emulator=None, sdcard=None, emulatorBinary=None,
                 emulatorImg=None, emulator_res='480x800', gecko_path=None,
                 connectToRunningEmulator=False, homedir=None, baseurl=None,
                 noWindow=False, logcat_dir=None, busybox=None, load_early=False):
        self.host = host
        self.port = self.local_port = port
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self._test_name = None

        if bin:
            self.instance = GeckoInstance(host=self.host, port=self.port,
                                          bin=self.bin, profile=self.profile)
            self.instance.start()
            assert(self.instance.wait_for_port())

        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     sdcard=sdcard,
                                     emulatorBinary=emulatorBinary,
                                     userdata=emulatorImg,
                                     res=emulator_res)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir,
                                     logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.setup(self, gecko_path=gecko_path,
                                load_early=load_early)
            if busybox:
                self.emulator.install_busybox(busybox)

class Marionette(object):

    CONTEXT_CHROME = 'chrome'
    CONTEXT_CONTENT = 'content'

    def __init__(self, host='localhost', port=2828, b2gbin=False,
                 emulator=None, emulatorBinary=None, connectToRunningEmulator=False,
                 homedir=None, baseurl=None, noWindow=False, logcat_dir=None):
        self.host = host
        self.port = self.local_port = port
        self.b2gbin = b2gbin
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir

        if b2gbin:
            self.b2ginstance = B2GInstance(host=self.host, port=self.port, b2gbin=self.b2gbin)
            self.b2ginstance.start()
            assert(self.b2ginstance.wait_for_port())
        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     emulatorBinary=emulatorBinary)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir, logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

    def __del__(self):
        if self.emulator:
            self.emulator.close()
        if self.b2gbin:
            self.b2ginstance.close()
        for qemu in self.extra_emulators:
            qemu.emulator.close()

    def _send_message(self, command, response_key, **kwargs):
        if not self.session and command not in ('newSession', 'getStatus'):
            raise MarionetteException(message="Please start a session")

        message = { 'type': command }
        if self.session:
            message['session'] = self.session
        if kwargs:
            message.update(kwargs)

        try:
            response = self.client.send(message)
        except socket.timeout:
            self.session = None
            self.window = None
            self.client.close()
            if self.emulator:
                port = self.emulator.restart(self.local_port)
                if port is not None:
                    self.port = self.client.port = port
            raise TimeoutException(message='socket.timeout', status=21, stacktrace=None)

        # Process any emulator commands that are sent from a script
        # while it's executing.
        while response.get("emulator_cmd"):
            response = self._handle_emulator_cmd(response)

        if (response_key == 'ok' and response.get('ok') ==  True) or response_key in response:
            return response[response_key]
        else:
            self._handle_error(response)

    def _handle_emulator_cmd(self, response):
        cmd = response.get("emulator_cmd")
        if not cmd or not self.emulator:
            raise MarionetteException(message="No emulator in this test to run "
                                      "command against.")
        cmd = cmd.encode("ascii")
        result = self.emulator._run_telnet(cmd)
        return self.client.send({"type": "emulatorCmdResult",
                                 "id": response.get("id"),
                                 "result": result})

    def _handle_error(self, response):
        if 'error' in response and isinstance(response['error'], dict):
            status = response['error'].get('status', 500)
            message = response['error'].get('message')
            stacktrace = response['error'].get('stacktrace')
            # status numbers come from 
            # http://code.google.com/p/selenium/wiki/JsonWireProtocol#Response_Status_Codes
#.........这里部分代码省略.........

class Marionette(object):
    """
    Represents a Marionette connection to a browser or device.
    """

    CONTEXT_CHROME = 'chrome' # non-browser content: windows, dialogs, etc.
    CONTEXT_CONTENT = 'content' # browser content: iframes, divs, etc.
    TIMEOUT_SEARCH = 'implicit'
    TIMEOUT_SCRIPT = 'script'
    TIMEOUT_PAGE = 'page load'

    def __init__(self, host='localhost', port=2828, app=None, app_args=None, bin=None,
                 profile=None, emulator=None, sdcard=None, emulatorBinary=None,
                 emulatorImg=None, emulator_res=None, gecko_path=None,
                 connectToRunningEmulator=False, homedir=None, baseurl=None,
                 noWindow=False, logcat_dir=None, busybox=None, symbols_path=None,
                 timeout=None, device_serial=None):
        self.host = host
        self.port = self.local_port = port
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self._test_name = None
        self.symbols_path = symbols_path
        self.timeout = timeout
        self.device_serial = device_serial

        if bin:
            port = int(self.port)
            if not Marionette.is_port_available(port, host=self.host):
                ex_msg = "%s:%d is unavailable." % (self.host, port)
                raise MarionetteException(message=ex_msg)
            if app:
                # select instance class for the given app
                try:
                    instance_class = geckoinstance.apps[app]
                except KeyError:
                    msg = 'Application "%s" unknown (should be one of %s)'
                    raise NotImplementedError(msg % (app, geckoinstance.apps.keys()))
            else:
                instance_class = geckoinstance.GeckoInstance
            self.instance = instance_class(host=self.host, port=self.port,
                                           bin=self.bin, profile=self.profile, app_args=app_args)
            self.instance.start()
            assert(self.wait_for_port()), "Timed out waiting for port!"

        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     sdcard=sdcard,
                                     emulatorBinary=emulatorBinary,
                                     userdata=emulatorImg,
                                     res=emulator_res)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port()), "Timed out waiting for port!"

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir,
                                     logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port()), "Timed out waiting for port!"

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.setup(self,
                                gecko_path=gecko_path,
                                busybox=busybox)

    def __del__(self):
        if self.emulator:
            self.emulator.close()
        if self.instance:
            self.instance.close()
        for qemu in self.extra_emulators:
            qemu.emulator.close()

    @staticmethod
    def is_port_available(port, host=''):
        port = int(port)
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        try:
            s.bind((host, port))
            return True
        except socket.error:
            return False
        finally:
            s.close()
#.........这里部分代码省略.........

class Marionette(object):

    def __init__(self, host='localhost', port=2626):
        self.host = host
        self.port = port
        self.client = MarionetteClient(self.host, self.port)
        self.actor = 'marionette'
        self.session = None
        self.window = None

    def _send_message(self, command, response_key, **kwargs):
        if not self.session and command not in ('newSession', 'getStatus'):
            self.start_session()

        message = { 'to': self.actor,
                    'command': command }
        if self.session:
            message['session'] = self.session
        if kwargs:
            message.update(kwargs)

        response = self.client.send(message)

        if (response_key == 'ok' and response.get('ok') ==  True) or response_key in response:
            return response[response_key]
        else:
            self._handle_error(response)

    def _handle_error(self, response):
        if 'error' in response and isinstance(response['error'], dict):
            status = response['error'].get('status', 500)
            message = response['error'].get('message')
            stacktrace = response['error'].get('stacktrace')
            # status numbers come from 
            # http://code.google.com/p/selenium/wiki/JsonWireProtocol#Response_Status_Codes
            if status == 7:
                raise NoSuchElementException(message=message, status=status, stacktrace=stacktrace)
            elif status == 8:
                raise NoSuchFrameException(message=message, status=status, stacktrace=stacktrace)
            elif status == 10:
                raise StaleElementException(message=message, status=status, stacktrace=stacktrace)
            elif status == 11:
                raise ElementNotVisibleException(message=message, status=status, stacktrace=stacktrace)
            elif status == 17:
                raise JavascriptException(message=message, status=status, stacktrace=stacktrace)
            elif status == 19:
                raise XPathLookupException(message=message, status=status, stacktrace=stacktrace)
            elif status == 21:
                raise TimeoutException(message=message, status=status, stacktrace=stacktrace)
            elif status == 23:
                raise NoSuchWindowException(message=message, status=status, stacktrace=stacktrace)
            elif status == 28:
                raise ScriptTimeoutException(message=message, status=status, stacktrace=stacktrace)
            else:
                raise MarionetteException(message=message, status=status, stacktrace=stacktrace)
        raise MarionetteException(message=response, status=500)

    def status(self):
        return self._send_message('getStatus', 'value')

    def start_session(self, desired_capabilities=None):
        # We are ignoring desired_capabilities, at least for now.
        self.session = self._send_message('newSession', 'value')
        return self.session

    def delete_session(self):
        response = self._send_message('deleteSession', 'ok')
        self.session = None
        self.window = None
        self.client.close()
        return response

    def get_session_capabilities(self):
        response = self._send_message('getSessionCapabilities', 'value')
        return response

    def set_script_timeout(self, timeout):
        response = self._send_message('setScriptTimeout', 'ok', value=timeout)
        return response

    def set_search_timeout(self, timeout):
        response = self._send_message('setSearchTimeout', 'ok', value=timeout)
        return response

    def get_window(self):
        self.window = self._send_message('getWindow', 'value')
        return self.window

    def get_windows(self):
        response = self._send_message('getWindows', 'values')
        return response

    def close_window(self, window_id=None):
        if not window_id:
            window_id = self.get_window()
        response = self._send_message('closeWindow', 'ok', value=window_id)
        return response

    def switch_to_window(self, window_id):
        response = self._send_message('switchToWindow', 'ok', value=window_id)
#.........这里部分代码省略.........

class Marionette(object):

    CONTEXT_CHROME = "chrome"
    CONTEXT_CONTENT = "content"
    TIMEOUT_SEARCH = "implicit"
    TIMEOUT_SCRIPT = "script"
    TIMEOUT_PAGE = "page load"

    def __init__(
        self,
        host="localhost",
        port=2828,
        app=None,
        bin=None,
        profile=None,
        emulator=None,
        sdcard=None,
        emulatorBinary=None,
        emulatorImg=None,
        emulator_res=None,
        gecko_path=None,
        connectToRunningEmulator=False,
        homedir=None,
        baseurl=None,
        noWindow=False,
        logcat_dir=None,
        busybox=None,
        symbols_path=None,
        timeout=None,
    ):
        self.host = host
        self.port = self.local_port = port
        self.app = app
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self._test_name = None
        self.symbols_path = symbols_path
        self.timeout = timeout

        if bin:
            port = int(self.port)
            if not Marionette.is_port_available(port, host=self.host):
                ex_msg = "%s:%d is unavailable." % (self.host, port)
                raise MarionetteException(message=ex_msg)
            if app:
                # select instance class for the given app
                try:
                    instance_class = geckoinstance.apps[app]
                except KeyError:
                    msg = 'Application "%s" unknown (should be one of %s)'
                    raise NotImplementedError(msg % (app, geckoinstance.apps.keys()))
            else:
                instance_class = geckoinstance.GeckoInstance
            self.instance = instance_class(host=self.host, port=self.port, bin=self.bin, profile=self.profile)
            self.instance.start()
            assert self.wait_for_port()

        if emulator:
            self.emulator = Emulator(
                homedir=homedir,
                noWindow=self.noWindow,
                logcat_dir=self.logcat_dir,
                arch=emulator,
                sdcard=sdcard,
                emulatorBinary=emulatorBinary,
                userdata=emulatorImg,
                res=emulator_res,
            )
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert self.emulator.wait_for_port()

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir, logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert self.emulator.wait_for_port()

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.setup(self, gecko_path=gecko_path, busybox=busybox)

    def __del__(self):
        if self.emulator:
            self.emulator.close()
        if self.instance:
            self.instance.close()
        for qemu in self.extra_emulators:
            qemu.emulator.close()

#.........这里部分代码省略.........

class Marionette(object):

    CONTEXT_CHROME = 'chrome'
    CONTEXT_CONTENT = 'content'
    TIMEOUT_SEARCH = 'implicit'
    TIMEOUT_SCRIPT = 'script'
    TIMEOUT_PAGE = 'page load'

    def __init__(self, host='localhost', port=2828, bin=None, profile=None,
                 emulator=None, sdcard=None, emulatorBinary=None,
                 emulatorImg=None, emulator_res='480x800', gecko_path=None,
                 connectToRunningEmulator=False, homedir=None, baseurl=None,
                 noWindow=False, logcat_dir=None, busybox=None):
        self.host = host
        self.port = self.local_port = port
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self._test_name = None

        if bin:
            self.instance = GeckoInstance(host=self.host, port=self.port,
                                          bin=self.bin, profile=self.profile)
            self.instance.start()
            assert(self.wait_for_port())

        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     sdcard=sdcard,
                                     emulatorBinary=emulatorBinary,
                                     userdata=emulatorImg,
                                     res=emulator_res)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir,
                                     logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.setup(self, gecko_path=gecko_path)
            if busybox:
                self.emulator.install_busybox(busybox)

    def __del__(self):
        if self.emulator:
            self.emulator.close()
        if self.instance:
            self.instance.close()
        for qemu in self.extra_emulators:
            qemu.emulator.close()

    @classmethod
    def getMarionetteOrExit(cls, *args, **kwargs):
        try:
            m = cls(*args, **kwargs)
            return m
        except InstallGeckoError:
            # Bug 812395 - the process of installing gecko into the emulator
            # and then restarting B2G tickles some bug in the emulator/b2g
            # that intermittently causes B2G to fail to restart.  To work
            # around this in TBPL runs, we will fail gracefully from this
            # error so that the mozharness script can try the run again.

            # This string will get caught by mozharness and will cause it
            # to retry the tests.
            print "Error installing gecko!"

            # Exit without a normal exception to prevent mozharness from
            # flagging the error.
            sys.exit()

    def wait_for_port(self, timeout=3000):
        starttime = datetime.datetime.now()
        while datetime.datetime.now() - starttime < datetime.timedelta(seconds=timeout):
            try:
                sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                sock.connect((self.host, self.port))
                data = sock.recv(16)
                sock.close()
                if '"from"' in data:
                    time.sleep(5)
                    return True
#.........这里部分代码省略.........

class Marionette(object):

    CONTEXT_CHROME = 'chrome'
    CONTEXT_CONTENT = 'content'

    def __init__(self, host='localhost', port=2828, bin=None, profile=None,
                 emulator=None, sdcard=None, emulatorBinary=None,
                 emulatorImg=None, emulator_res='480x800', gecko_path=None,
                 connectToRunningEmulator=False, homedir=None, baseurl=None,
                 noWindow=False, logcat_dir=None):
        self.host = host
        self.port = self.local_port = port
        self.bin = bin
        self.instance = None
        self.profile = profile
        self.session = None
        self.window = None
        self.emulator = None
        self.extra_emulators = []
        self.homedir = homedir
        self.baseurl = baseurl
        self.noWindow = noWindow
        self.logcat_dir = logcat_dir
        self.gecko_path = gecko_path

        if bin:
            self.instance = GeckoInstance(host=self.host, port=self.port,
                                          bin=self.bin, profile=self.profile)
            self.instance.start()
            assert(self.instance.wait_for_port())

        if emulator:
            self.emulator = Emulator(homedir=homedir,
                                     noWindow=self.noWindow,
                                     logcat_dir=self.logcat_dir,
                                     arch=emulator,
                                     sdcard=sdcard,
                                     emulatorBinary=emulatorBinary,
                                     userdata=emulatorImg,
                                     res=emulator_res)
            self.emulator.start()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        if connectToRunningEmulator:
            self.emulator = Emulator(homedir=homedir,
                                     logcat_dir=self.logcat_dir)
            self.emulator.connect()
            self.port = self.emulator.setup_port_forwarding(self.port)
            assert(self.emulator.wait_for_port())

        self.client = MarionetteClient(self.host, self.port)

        if emulator:
            self.emulator.wait_for_system_message(self)
        if self.gecko_path:
            self.emulator.install_gecko(self.gecko_path, self)

    def __del__(self):
        if self.emulator:
            self.emulator.close()
        if self.instance:
            self.instance.close()
        for qemu in self.extra_emulators:
            qemu.emulator.close()

    def _send_message(self, command, response_key, **kwargs):
        if not self.session and command not in ('newSession', 'getStatus'):
            raise MarionetteException(message="Please start a session")

        message = { 'type': command }
        if self.session:
            message['session'] = self.session
        if kwargs:
            message.update(kwargs)

        try:
            response = self.client.send(message)
        except socket.timeout:
            self.session = None
            self.window = None
            self.client.close()
            if self.emulator:
                port = self.emulator.restart(self.local_port)
                if port is not None:
                    self.port = self.client.port = port
            raise TimeoutException(message='socket.timeout', status=ErrorCodes.TIMEOUT, stacktrace=None)

        # Process any emulator commands that are sent from a script
        # while it's executing.
        while response.get("emulator_cmd"):
            response = self._handle_emulator_cmd(response)

        if (response_key == 'ok' and response.get('ok') ==  True) or response_key in response:
            return response[response_key]
        else:
            self._handle_error(response)

    def _handle_emulator_cmd(self, response):
        cmd = response.get("emulator_cmd")
#.........这里部分代码省略.........