Fix test by callback on writing from confighdfwrite

Author: shihab-dls

src/ophyd_async/fastcs/odin/_odin_io.py

@@ -33,7 +33,7 @@ class OdinHdfIO(Device):
     writing: SignalR[Writing]
     config_hdf_write: SignalW[Writing]
     frames_written: SignalR[int]
-    config_hdf_frames: SignalRW[int]
+    config_hdf_frames: SignalW[int]
     dataset_data_dims_0: SignalRW[int]
     dataset_data_dims_1: SignalRW[int]
     dataset_data_chunks_0: SignalRW[int]

tests/fastcs/odin/test_odin_io.py

@@ -5,7 +5,7 @@
 
 from ophyd_async.core import init_devices
 from ophyd_async.fastcs.odin import OdinHdfIO, OdinWriter, Writing  # noqa: PLC2701
-from ophyd_async.testing import get_mock_put, set_mock_value
+from ophyd_async.testing import callback_on_mock_put, get_mock_put, set_mock_value
 
 OdinDriverAndWriter = tuple[OdinHdfIO, OdinWriter]
 
@@ -65,5 +65,11 @@ async def test_when_closed_then_data_capture_turned_off(
     odin_driver_and_writer: OdinDriverAndWriter,
 ):
     driver, writer = odin_driver_and_writer
+
+    def set_writing_signal(value, *args, **kwargs):
+        set_mock_value(driver.writing, value)
+
+    callback_on_mock_put(driver.config_hdf_write, set_writing_signal)
+
     await writer.close()
     get_mock_put(driver.config_hdf_write).assert_called_once_with(Writing.OFF, wait=ANY)