Python EpicsSignal.check_value 예제들

예제 #1

파일: test_signal.py 프로젝트: bsobhani/ophyd

def test_epicssignal_readwrite_limits():
    signal = EpicsSignal('readpv', write_pv='readpv', limits=True)

    signal.wait_for_connection()
    signal.check_value((signal.low_limit + signal.high_limit) / 2)

    try:
        signal.check_value(None)
    except ValueError:
        pass
    else:
        raise ValueError('value=None')

    try:
        signal.check_value(signal.low_limit - 1)
    except ValueError:
        pass
    else:
        raise ValueError('lower limit %s' % (signal.limits, ))

    try:
        signal.check_value(signal.high_limit + 1)
    except ValueError:
        pass
    else:
        raise ValueError('upper limit')

예제 #2

파일: test_signal.py 프로젝트: danielballan/ophyd

def test_epicssignal_readwrite_limits():
    signal = EpicsSignal('readpv', write_pv='readpv', limits=True)

    signal.wait_for_connection()
    signal.check_value((signal.low_limit + signal.high_limit) / 2)

    try:
        signal.check_value(None)
    except ValueError:
        pass
    else:
        raise ValueError('value=None')

    try:
        signal.check_value(signal.low_limit - 1)
    except ValueError:
        pass
    else:
        raise ValueError('lower limit %s' % (signal.limits, ))

    try:
        signal.check_value(signal.high_limit + 1)
    except ValueError:
        pass
    else:
        raise ValueError('upper limit')

예제 #3

def test_epicssignal_readwrite_limits(cleanup, signal_test_ioc):
    signal = EpicsSignal(read_pv=signal_test_ioc.pvs['read_only'],
                         write_pv=signal_test_ioc.pvs['read_write'],
                         limits=True)
    cleanup.add(signal)

    signal.wait_for_connection()
    signal.check_value((signal.low_limit + signal.high_limit) / 2)

    with pytest.raises(ValueError):
        signal.check_value(None)

    with pytest.raises(ValueError):
        signal.check_value(signal.low_limit - 1)

    with pytest.raises(ValueError):
        signal.check_value(signal.high_limit + 1)