Files
ophyd_devices/tests/test_base_classes.py

124 lines
4.1 KiB
Python

# pylint: skip-file
import time
from unittest import mock
import pytest
from bec_server.device_server.tests.utils import DMMock
from ophyd import Component as Cpt
from ophyd import DeviceStatus, Signal, Staged
from ophyd.utils.errors import RedundantStaging
from ophyd_devices.interfaces.base_classes.psi_device_base import PSIDeviceBase
from ophyd_devices.interfaces.base_classes.psi_pseudo_device_base import PSIPseudoDeviceBase
from ophyd_devices.utils.bec_processed_signal import BECProcessedSignal
@pytest.fixture
def detector_base():
yield PSIDeviceBase(name="test_detector")
class TestPSIPseudoDeviceBase(PSIPseudoDeviceBase):
"""Test class for PSIPseudoDeviceBase to test wait_for_connection method."""
signal = Cpt(BECProcessedSignal, name="signal", model_config=None)
tmp = Cpt(Signal, name="tmp")
def __init__(self, name, device_manager=None, **kwargs):
super().__init__(name=name, device_manager=device_manager, **kwargs)
self.signal.set_compute_method(self.compute, signal=self.tmp)
def compute(self, signal):
"""Compute method for the processed signal."""
return signal.get() * 2
@pytest.fixture
def pseudo_device_base():
dm = DMMock()
yield TestPSIPseudoDeviceBase(name="test_pseudo_device", device_manager=dm)
def test_psuedo_device_wait_for_connection(pseudo_device_base):
# The wait_for_connection method should connect to the BECProcessedSignal after connecting to the normal signals.
assert pseudo_device_base.signal._metadata["connected"] is False
pseudo_device_base.wait_for_connection()
assert pseudo_device_base.signal._metadata["connected"] is True
def test_detector_base_init(detector_base):
assert detector_base.stopped is False
assert detector_base.name == "test_detector"
assert detector_base.staged == Staged.no
assert detector_base.destroyed == False
def test_stage(detector_base):
assert detector_base._staged == Staged.no
assert detector_base.stopped is False
detector_base._staged = Staged.no
with mock.patch.object(detector_base, "on_stage") as mock_on_stage:
rtr = detector_base.stage()
assert isinstance(rtr, list)
assert mock_on_stage.called is True
with pytest.raises(RedundantStaging):
detector_base.stage()
detector_base._staged = Staged.no
detector_base.stopped = True
detector_base.stage()
assert detector_base.stopped is False
assert mock_on_stage.call_count == 2
def test_pre_scan(detector_base):
with mock.patch.object(detector_base, "on_pre_scan") as mock_on_pre_scan:
detector_base.pre_scan()
mock_on_pre_scan.assert_called_once()
def test_trigger(detector_base):
status = DeviceStatus(detector_base)
with mock.patch.object(
detector_base, "on_trigger", side_effect=[None, status]
) as mock_on_trigger:
st = detector_base.trigger()
assert isinstance(st, DeviceStatus)
st.wait(timeout=1)
assert st.done is True
st = detector_base.trigger()
assert st.done is False
assert id(st) == id(status)
def test_unstage(detector_base):
detector_base.stopped = True
with (mock.patch.object(detector_base, "on_unstage") as mock_on_unstage,):
rtr = detector_base.unstage()
assert isinstance(rtr, list)
assert mock_on_unstage.call_count == 1
detector_base.stopped = False
rtr = detector_base.unstage()
assert isinstance(rtr, list)
assert mock_on_unstage.call_count == 2
def test_complete(detector_base):
status = DeviceStatus(detector_base)
with mock.patch.object(
detector_base, "on_complete", side_effect=[None, status]
) as mock_on_complete:
st = detector_base.complete()
assert isinstance(st, DeviceStatus)
time.sleep(0.1)
assert st.done is True
st = detector_base.complete()
assert st.done is False
assert id(st) == id(status)
def test_stop(detector_base):
with mock.patch.object(detector_base, "on_stop") as mock_on_stop:
detector_base.stop()
mock_on_stop.assert_called_once()
assert detector_base.stopped is True