TST #984 with fake AD

apstools/devices/tests/test_issue984_ad_factory.py

@@ -0,0 +1,18 @@
+"""
+Test the area detector factory class with an ophyd fake device.
+
+.. see: https://github.com/BCDA-APS/apstools/issues/984#issuecomment-2195201893
+"""
+from ophyd.sim import instantiate_fake_device as make_fake
+
+from ..area_detector_factory import ad_class_factory
+
+
+def test_my_fake_area_detector():
+    ad_class = ad_class_factory("FakeAD", None, ["cam"])
+    fake_ad = make_fake(ad_class, prefix="Fake:AD", name="fake_ad")
+    assert "cam.acquire_time" not in fake_ad.stage_sigs
+
+    fake_ad.stage_sigs["cam.acquire_time"] = 2.0
+    fake_ad.stage()
+    assert fake_ad.cam.acquire_time.get() == 2.0