def testMethodDecoratorTranslatesOldExceptions(self):
test_obj = self._MethodDecoratorTestObject(self)
exception_desc = 'Old response timeout error'
with self.assertRaises(device_errors.CommandTimeoutError) as e:
test_obj.alwaysRaisesProvidedException(
old_errors.WaitForResponseTimedOutError(exception_desc))
self.assertEquals(exception_desc, str(e.exception))
exception_desc = 'Old device error'
with self.assertRaises(device_errors.DeviceUnreachableError) as e:
test_obj.alwaysRaisesProvidedException(
old_errors.DeviceUnresponsiveError(exception_desc))
self.assertEquals(exception_desc, str(e.exception))
def testExplicitDecoratorTranslatesOldExceptions(self):
"""Tests that the explicit decorator translates old exceptions."""
@decorators.WithExplicitTimeoutAndRetries(30, 10)
def alwaysRaisesProvidedException(exception):
raise exception
exception_desc = 'Old response timeout error'
with self.assertRaises(device_errors.CommandTimeoutError) as e:
alwaysRaisesProvidedException(
old_errors.WaitForResponseTimedOutError(exception_desc))
self.assertEquals(exception_desc, str(e.exception))
exception_desc = 'Old device error'
with self.assertRaises(device_errors.DeviceUnreachableError) as e:
alwaysRaisesProvidedException(
old_errors.DeviceUnresponsiveError(exception_desc))
self.assertEquals(exception_desc, str(e.exception))
def RunShellCommand(self, command, timeout_time=20, log_result=False):
"""Send a command to the adb shell and return the result.
Args:
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.
Returns:
list containing the lines of output received from running the command
"""
logging.info('>>> $' + command)
if "'" in command: logging.warning(command + " contains ' quotes")
result = self._adb.SendShellCommand("'%s'" % command,
timeout_time).splitlines()
if ['error: device not found'] == result:
raise errors.DeviceUnresponsiveError('device not found')
if log_result:
logging.info('\n>>> '.join(result))
return result
def FileExistsOnDevice(self, file_name):
"""Checks whether the given file exists on the device.
Args:
file_name: Full path of file to check.
Returns:
True if the file exists, False otherwise.
"""
assert '"' not in file_name, 'file_name cannot contain double quotes'
try:
status = self._adb.SendShellCommand('\'test -e "%s"; echo $?\'' %
(file_name))
if 'test: not found' not in status:
return int(status) == 0
status = self._adb.SendShellCommand(
'\'ls "%s" >/dev/null 2>&1; echo $?\'' % (file_name))
return int(status) == 0
except ValueError:
if IsDeviceAttached(self._device):
raise errors.DeviceUnresponsiveError('Device may be offline.')
return False
