Merge "bootstat: battery test fails on QC devices"

[ "USAGE: test_battery

battery test (trick):

- echo healthd: battery l=2 | adb shell su root tee /dev/kmsg ; adb reboot warm

- echo healthd: battery l=2 | adb shell su root tee /dev/kmsg ; adb reboot cold

- (wait until screen is up, boot has completed)

- adb shell getprop sys.boot.reason

- NB: should report reboot,battery, unless healthd managed to log

- (replace set logd.kernel true to the above, and retry test)" ]

test_battery() {

  echo "INFO: expected duration of ${TEST} test roughly two minutes" >&2

  # Send it _many_ times to combat devices with flakey pstore

  for i in a b c d e f g h i j k l m n o p q r s t u v w x y z; do

    echo healthd: battery l=2 | adb shell su root tee /dev/kmsg >/dev/null

  adb reboot warm >&2

  done

  adb reboot cold >&2

  adb wait-for-device

  wait_for_screen

  adb shell su root \

    cat /proc/fs/pstore/console-ramoops \

    grep 'healthd: battery l=2' >/dev/null || (

      if ! EXPECT_PROPERTY sys.boot.reason reboot,battery >/dev/null 2>/dev/null; then

        # retry

        for i in a b c d e f g h i j k l m n o p q r s t u v w x y z; do

          echo healthd: battery l=2 | adb shell su root tee /dev/kmsg >/dev/null

        adb reboot warm >&2

        done

        adb reboot cold >&2

        adb wait-for-device

        wait_for_screen

      fi

    )

  EXPECT_PROPERTY sys.boot.reason shutdown,battery

  EXPECT_PROPERTY persist.sys.boot.reason reboot,warm

  EXPECT_PROPERTY persist.sys.boot.reason reboot,cold

  report_bootstat_logs shutdown,battery "-bootstat: Battery level at shutdown 2%"

}