wip ioc stuff

tests/test_psi_positioner_base.py

@@ -1,6 +1,12 @@
-from unittest.mock import MagicMock
+import sys
+import time
+from multiprocessing import Process
+from unittest.mock import MagicMock, patch
 
 import pytest
+from caproto.ioc_examples import fake_motor_record as fmr
+from caproto.server import ioc_arg_parser, run
+from caproto.sync.client import read
 from ophyd.device import Component as Cpt
 from ophyd.signal import EpicsSignal
 from ophyd.sim import FakeEpicsSignal, FakeEpicsSignalRO
@@ -11,6 +17,34 @@ from ophyd_devices.interfaces.base_classes.psi_positioner_base import (
 )
 
 
+@pytest.fixture
+def sim_motor():
+    with patch.object(sys, "argv", [sys.executable]):
+        ioc_options, run_options = ioc_arg_parser(
+            default_prefix="sim:", desc=fmr.FakeMotorIOC.__doc__
+        )
+    ioc = fmr.FakeMotorIOC(**ioc_options)
+    p = Process(target=fmr.run, args=[ioc.pvdb], kwargs=run_options, daemon=True)
+    p.start()
+
+    import epics
+
+    start = time.monotonic()
+    time.sleep(0.1)
+    while True:
+        try:
+            rd = epics.caget("sim:mtr1.RBV")
+        except Exception as e:
+            print(e)
+            rd = None
+        rd
+        if time.monotonic() - start > 100:
+            raise TimeoutError("Failed waiting for IOC to start")
+    yield
+    p.kill()
+    p.join()
+
+
 def test_cannot_isntantiate_without_required_signals():
     class PSITestPositionerWOSignal(PSIPositionerBase): ...
 
@@ -25,3 +59,7 @@ def test_cannot_isntantiate_without_required_signals():
 
     dev = PSITestPositionerWithSignal("", name="")
     assert dev.user_setpoint.get() == 0
+
+
+def test_against_ioc(sim_motor):
+    assert 1