Best Python code snippet using autotest_python
serial.py
Source:serial.py  
...23        path = os.path.join(server_dir, "..", "conmux", "conmux-attach")24        path = os.path.abspath(path)25        return path26    @staticmethod27    def _get_conmux_hostname(hostname, conmux_server):28        if conmux_server:29            return "%s/%s" % (conmux_server, hostname)30        else:31            return hostname32    def get_conmux_hostname(self):33        return self._get_conmux_hostname(self.hostname, self.conmux_server)34    @classmethod35    def host_is_supported(cls, hostname, conmux_server=None,36                          conmux_attach=None):37        """ Returns a boolean indicating if the remote host with "hostname"38        supports use as a SerialHost """39        conmux_attach = cls._get_conmux_attach(conmux_attach)40        conmux_hostname = cls._get_conmux_hostname(hostname, conmux_server)41        cmd = "%s %s echo 2> /dev/null" % (conmux_attach, conmux_hostname)42        try:43            result = utils.run(cmd, ignore_status=True, timeout=10)44            return result.exit_status == 045        except error.CmdError:46            logging.warning("Timed out while trying to attach to conmux")47        return False48    def start_loggers(self):49        super(SerialHost, self).start_loggers()50        if self.__console_log is None:51            return52        if not self.conmux_attach or not os.path.exists(self.conmux_attach):53            return54        r, w = os.pipe()55        script_path = os.path.join(self.monitordir, 'console.py')56        cmd = [self.conmux_attach, self.get_conmux_hostname(),57               '%s %s %s %d' % (sys.executable, script_path,58                                self.__console_log, w)]59        self.__warning_stream = os.fdopen(r, 'r', 0)60        if self.job:61            self.job.warning_loggers.add(self.__warning_stream)62        stdout = stderr = open(os.devnull, 'w')63        self.__logger = subprocess.Popen(cmd, stdout=stdout, stderr=stderr)64        os.close(w)65    def stop_loggers(self):66        super(SerialHost, self).stop_loggers()67        if self.__logger:68            utils.nuke_subprocess(self.__logger)69            self.__logger = None70            if self.job:71                self.job.warning_loggers.discard(self.__warning_stream)72            self.__warning_stream.close()73    def run_conmux(self, cmd):74        """75        Send a command to the conmux session76        """77        if not self.conmux_attach or not os.path.exists(self.conmux_attach):78            return False79        cmd = '%s %s echo %s 2> /dev/null' % (self.conmux_attach,80                                              self.get_conmux_hostname(),81                                              cmd)82        result = utils.system(cmd, ignore_status=True)83        return result == 084    def hardreset(self, timeout=DEFAULT_REBOOT_TIMEOUT, wait=True,85                  conmux_command='hardreset', num_attempts=1):86        """87        Reach out and slap the box in the power switch.88        Args:89                conmux_command: The command to run via the conmux interface90                timeout: timelimit in seconds before the machine is91                considered unreachable92                wait: Whether or not to wait for the machine to reboot93        """94        conmux_command = "'~$%s'" % conmux_command...Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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