Test file for using events with devicetest

devicetest_with_events.py

from time import sleep
from devicetest import TangoTestContext
from PyTango import utils, EventType, DevState
from PyTango.server import Device, DeviceMeta, command, run

class Dummy(Device):
    __metaclass__ = DeviceMeta

    def init_device(self):
        self.set_change_event('State', True, True)
        
    @command
    def On(self):
        self.set_state(DevState.ON)

    @command
    def Off(self):
        self.set_state(DevState.OFF)


if __name__ == '__main__':
    with TangoTestContext(Dummy) as proxy:
        cb = utils.EventCallBack()
        proxy.subscribe_event('State', EventType.CHANGE_EVENT, cb)
        while True:
            proxy.On()
            sleep(3)
            proxy.Off()
            sleep(3)