1 # 2 # Copyright (C) 2017 The Android Open Source Project 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 # 16 17 import adb_handler 18 19 class AndroidTestDevice(object): 20 """Class representing an android device. 21 22 Each instance represents a different device connected to adb. 23 """ 24 25 def __init__(self, serial=None, stream=None): 26 # TODO: Implement and flesh out the device interface 27 self.serial = serial 28 self._logging = stream 29 self.adb = adb_handler.AdbHandler(serial) 30 31 def executeShellCommand(self, cmd): 32 """Convenience method to call the adb wrapper to execute a shell command. 33 34 Args: 35 cmd: The command to be executed in 'adb shell' 36 37 Returns: 38 The stdout of the command if succeed. Or raise AdbError if failed. 39 """ 40 return self.adb.exec_shell_command(cmd) 41 42 def getProp(self, name): 43 if not name: 44 raise DeviceCommandError('getProp', 'Name of property cannot be None') 45 out = self.executeShellCommand('getprop %s' % name) 46 return out.strip() 47 48 def _printHostLog(self, message): 49 self._logging.write('%s \n' % message) 50 51 class DeviceCommandError(Exception): 52 """ Exception raised when an error is encountered while running a command. 53 """ 54 55 def __init__(self, cmd, message): 56 self.cmd = cmd 57 self.message = message 58 59 def __str__(self): 60 return ('Error executing device cmd "%s". message: "%s"' 61 ) % (self.cmd, self.message) 62
