Add commented out test

tests/devices/unit_tests/oav/conftest.py

@@ -15,4 +15,5 @@ async def oav() -> OAV:
         oav = OAV("", config=oav_config, name="fake_oav")
     set_mock_value(oav.grid_snapshot.x_size, 1024)
     set_mock_value(oav.grid_snapshot.y_size, 768)
+    set_mock_value(oav.zoom_controller.level, "1.0x")
     return oav

tests/devices/unit_tests/oav/test_oav_utils.py

@@ -5,6 +5,7 @@
 from bluesky.run_engine import RunEngine
 from ophyd.sim import instantiate_fake_device
 
+# from ophyd_async.core import set_mock_value
 from dodal.devices.oav.oav_calculations import calculate_beam_distance
 from dodal.devices.oav.oav_detector import OAV
 from dodal.devices.oav.pin_image_recognition import PinTipDetection
@@ -13,8 +14,11 @@
     PinNotFoundException,
     bottom_right_from_top_left,
     wait_for_tip_to_be_found,
+    # get_move_required_so_that_beam_is_at_pixel,
 )
 
+# from dodal.devices.smargon import Smargon
+
 
 def test_bottom_right_from_top_left():
     top_left = np.array([123, 123])
@@ -45,7 +49,48 @@ def test_calculate_beam_distance(h, v, expected_x, expected_y, oav: OAV):
     ) == (expected_x, expected_y)
 
 
-# TODO  add test_values_for_move_so_that_beam_is_at_pixel
+# TODO, can't set beam center and micron as I want, will need to calculate
+# the right values.
+# @pytest.mark.parametrize(
+#     "px_per_um, beam_centre, angle, pixel_to_move_to, expected_xyz",
+#     [
+#         # Simple case of beam being in the top left and each pixel being 1 mm
+#         ([1000, 1000], [0, 0], 0, [100, 190], [100, 190, 0]),
+#         ([1000, 1000], [0, 0], -90, [50, 250], [50, 0, 250]),
+#         ([1000, 1000], [0, 0], 90, [-60, 450], [-60, 0, -450]),
+#         # Beam offset
+#         ([1000, 1000], [100, 100], 0, [100, 100], [0, 0, 0]),
+#         ([1000, 1000], [100, 100], -90, [50, 250], [-50, 0, 150]),
+#         # Pixels_per_micron different
+#         ([10, 50], [0, 0], 0, [100, 190], [1, 9.5, 0]),
+#         ([60, 80], [0, 0], -90, [50, 250], [3, 0, 20]),
+#     ],
+# )
+# async def test_values_for_move_so_that_beam_is_at_pixel(
+#     smargon: Smargon,
+#     oav: OAV,
+#     px_per_um,
+#     beam_centre,
+#     angle,
+#     pixel_to_move_to,
+#     expected_xyz,
+# ):
+#     await oav.microns_per_pixel_x._backend.put(px_per_um[0])
+#     # set_mock_value(oav.microns_per_pixel_x, px_per_um[0])
+#     set_mock_value(oav.microns_per_pixel_y, px_per_um[1])
+#     set_mock_value(oav.beam_centre_i, beam_centre[0])
+#     set_mock_value(oav.beam_centre_j, beam_centre[1])
+
+#     set_mock_value(smargon.omega.user_readback, angle)
+
+#     RE = RunEngine(call_returns_result=True)
+#     pos = RE(
+#         get_move_required_so_that_beam_is_at_pixel(
+#             smargon, pixel_to_move_to, oav
+#         )
+#     ).plan_result  # type: ignore
+
+#     assert pos == pytest.approx(expected_xyz)
 
 
 @pytest.mark.asyncio