test_watchdog.py 文件源码

def test_watchdog_expir_state(self, x_series_device, seed):
        # Reset the pseudorandom number generator with seed.
        random.seed(seed)

        do_line = random.choice(x_series_device.do_lines)

        with nidaqmx.system.WatchdogTask(
                x_series_device.name, timeout=0.1) as task:
            expir_states = [DOExpirationState(
                physical_channel=do_line.name,
                expiration_state=Level.TRISTATE)]

            task.cfg_watchdog_do_expir_states(expir_states)

            expir_state_obj = task.expiration_states[do_line.name]
            assert expir_state_obj.expir_states_do_state == Level.TRISTATE

            expir_state_obj.expir_states_do_state = Level.LOW
            assert expir_state_obj.expir_states_do_state == Level.LOW