Python DerivedSignal.wait_for_connection Examples

Example #1

File: test_signal.py Project: danielballan/ophyd

def test_epics_signal_derived():
    signal = EpicsSignalRO('fakepv', name='original')

    derived = DerivedSignal(derived_from=signal, name='derived')
    derived.wait_for_connection()

    derived.connected

Example #2

File: test_signal.py Project: bsobhani/ophyd

def test_epics_signal_derived():
    signal = EpicsSignalRO('fakepv', name='original')

    derived = DerivedSignal(derived_from=signal, name='derived')
    derived.wait_for_connection()

    derived.connected

Example #3

File: test_signal.py Project: NSLS-II/ophyd

def test_epics_signal_derived(ro_signal):
    assert ro_signal.connected
    assert ro_signal.read_access
    assert not ro_signal.write_access

    derived = DerivedSignal(derived_from=ro_signal, name='derived')
    derived.wait_for_connection()

    assert derived.connected
    assert derived.read_access
    assert not derived.write_access

    assert derived.timestamp == ro_signal.timestamp
    assert derived.get() == ro_signal.value

Example #4

def test_epics_signal_derived(ro_signal):
    assert ro_signal.connected
    assert ro_signal.read_access
    assert not ro_signal.write_access

    derived = DerivedSignal(derived_from=ro_signal, name='derived')
    derived.wait_for_connection()

    assert derived.connected
    assert derived.read_access
    assert not derived.write_access

    assert derived.timestamp == ro_signal.timestamp
    assert derived.get() == ro_signal.get()

Example #5

def test_epics_signal_derived(cleanup, signal_test_ioc):
    signal = EpicsSignalRO(
        read_pv=signal_test_ioc.pvs['read_only'],
        name='original',
    )
    cleanup.add(signal)

    signal.wait_for_connection()
    assert signal.connected
    assert signal.read_access
    assert not signal.write_access

    derived = DerivedSignal(derived_from=signal, name='derived')
    derived.wait_for_connection()

    assert derived.connected
    assert derived.read_access
    assert not derived.write_access

    assert derived.timestamp == signal.timestamp
    assert derived.get() == signal.value