i15-1: Fix xtal device

src/dodal/devices/beamlines/i15_1/laue.py

@@ -12,12 +12,11 @@ def __init__(
         crystal_lut_path: str,
         name: str = "",
     ):
-        with self.add_children_as_readables():
-            self.bend = Motor(prefix + "BENDER")
-            self.bragg = Motor(prefix + "PITCH")
-            self.roll = Motor(prefix + "ROLL")
-            self.yaw = Motor(prefix + "YAW")
-            self.y = Motor(prefix + "Y")
+        self.bend = Motor(prefix + "BENDER")
+        self.bragg = Motor(prefix + "PITCH")
+        self.roll = Motor(prefix + "ROLL")
+        self.yaw = Motor(prefix + "YAW")
+        self.y = Motor(prefix + "Y")
 
         with self.add_children_as_readables(StandardReadableFormat.HINTED_SIGNAL):
             self.energy_kev = derived_signal_r(self._get_energy, y=self.y)
@@ -29,10 +28,7 @@ def __init__(
 
     def _get_xtal_config(self) -> XpdfCrystalLookupTable:
         return self._config_client.get_file_contents(
-            self._crystal_lut_path,
-            XpdfCrystalLookupTable,
-            # Remove once https://github.com/DiamondLightSource/daq-config-server/pull/183 is released + deployed
-            force_parser=XpdfCrystalLookupTable.from_contents,
+            self._crystal_lut_path, XpdfCrystalLookupTable
         )
 
     def _get_energy(self, y: float) -> float:

tests/devices/beamlines/i15_1/test_laue_monochrometer.py

@@ -47,5 +47,5 @@ async def test_energy_kev_gets_value_based_on_y(
     await assert_reading(
         laue_monochrometer,
         {f"{laue_monochrometer.name}-energy_kev": partial_reading(expected_energy)},
-        full_match=False,
+        full_match=True,
     )

tests/test_data/test_i15-1_crystal_y_energy_lut.txt

@@ -1,5 +1,7 @@
-Units mm keV
-# y     energy
-1.455    40.05   # xtal 311
--48.845  65.40   # xtal 220
-50.600   76.69   # xtal 111
+{
+  "rows": [
+    [1.455, 40.05],
+    [-48.845,65.4],
+    [50.6,76.69]
+  ]
+}