doze mode

https://medium.com/marojuns-android/%EC%A2%80-%EB%8D%94-%EC%83%9D%EA%B0%81%ED%95%B4%EB%B3%B8-android-m-%EB%A6%AC%EB%B7%B0-13fbb98c9a87#.7vw1s26r5

# force join doze mode
$ adb shell dumpsys battery unplug
$ adb shell dumpsys deviceidle step
$ adb shell am set-inactive ${your_package_name} true

# check doze mode state
$ adb shell am get-inactive ${your_package_name}