wip feat: make simple positioner with config signals

tests/positioner_test_ioc.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+from textwrap import dedent
+
+from caproto.server import PVGroup, ioc_arg_parser, pvproperty, run
+
+
+class PositionerIOCTest(PVGroup):
+    """"""
+
+    SETPOINT = pvproperty(value=2.0, doc="A float")
+    READBACK = pvproperty(value=2.0, doc="A float")
+
+
+if __name__ == "__main__":
+    ioc_options, run_options = ioc_arg_parser(
+        default_prefix="SIM:", desc=dedent(PositionerIOCTest.__doc__)
+    )
+    ioc = PositionerIOCTest(**ioc_options)
+    run(ioc.pvdb, **run_options)

tests/test_psi_positioner.py

@@ -0,0 +1,16 @@
+import caproto.ioc_examples.simple
+from ophyd import Component as Cpt
+from ophyd import EpicsSignal
+
+from ophyd_devices.interfaces.base_classes.psi_positioner_base import PSISimplePositionerBase
+
+
+class PvTestPositioner(PSISimplePositionerBase):
+    user_readback = Cpt(EpicsSignal, suffix="READ")
+
+
+def test_simple_positioner_init():
+    device = PvTestPositioner("SIM:", name="test", override_suffixes={"user_readback": "READBACK"})
+    device.user_readback.wait_for_connection()
+    reading = device.user_readback.read()
+    assert reading