"""Module for UI Automator related errors.

The error subclasses are intended to make it easier to distinguish between and
handle different types of error exceptions.
"""
DEFAULT_ERROR_CODE = 0


class NoAndroidDeviceError(Exception):
  """Raised when no Android device connected to the host computer."""

  err_code = 1


class AndroidDeviceNotReadyError(Exception):
  """Raised when a Android device is not ready to be controlled."""

  err_code = 2


class AdbError(Exception):
  """Raised when adb command fails."""

  err_code = 3


class MoblySnippetError(Exception):
  """Raised when running a method in loaded snippet throws an error."""

  err_code = 4