def check_device_connection(self):
commands = [self._adb, 'devices']
output, err, code = cexec(commands, callback=None)
if code == 0:
devices = output.strip().split('\n')
length = len(devices)
from exceptions import UsbConnectionException
if length < 2:
self.debug('No device\'s connection found')
raise UsbConnectionException(
'No device\'s connection found',
'\tUse `adb devices` to check your device connection')
if length > 2:
self.debug('More than 1 devices connect:')
self.debug(devices)
raise UsbConnectionException(
'More than 1 devices connect', '\tOnly 1 device allowed, '
'use `adb devices` to check your devices\' connection')
for content in devices:
if content.find('offline') <> -1:
raise UsbConnectionException(
'Device is connected but offline',
'\tPlease replug in device')
if content.find('unauthorized') <> -1:
raise UsbConnectionException(
'Device is connected but unauthorized',
'\tReplug in device and accept authorization as usual')
if not (content.find('device') > -1):
raise UsbConnectionException(
'Device is connected but unknown status',
'\tPlease replug in device')
def _check_connection(self):
self.debug('check device\' connection...')
commands = [self._adb, 'devices']
output, err, code = cexec(commands, callback=None)
if code == 0:
length = len(output.strip().split('\n'))
from exceptions import UsbConnectionException
if length < 2:
raise UsbConnectionException('No device\'s connection found',
'\tUse `adb devices` to check your device connection')
if length > 2:
raise UsbConnectionException('More than 1 device connect',
'\tOnly 1 device allowed, '
'use `adb devices` to check your devices\' connection')