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Read aperture properly rather than private method #506

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Read aperture properly rather than private method #506

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0745af6
Read aperture properly rather than private method
DominicOram Sep 18, 2024
16679ff
Pin to correct dodal
DominicOram Sep 18, 2024
92401d8
Refactor test
DominicOram Sep 18, 2024
b8e1e6e
Revert test
DominicOram Sep 19, 2024
36fd2d4
Merge branch 'main' into dodal_782_read_aperture
DominicOram Sep 20, 2024
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2 changes: 1 addition & 1 deletion pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ dependencies = [
"ophyd == 1.9.0",
"ophyd-async >= 0.3a5",
"bluesky >= 1.13.0a4",
"dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@040a72885deaca1055a930f09eccef4acca812f5",
"dls-dodal @ git+https://github.com/DiamondLightSource/dodal.git@69df71c072408e2b1aa372bfd351df5cd4978620",
]


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3 changes: 1 addition & 2 deletions tests/unit_tests/hyperion/experiment_plans/test_rotation_scan_plan.py
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Expand Up @@ -239,8 +239,7 @@ async def test_rotation_plan_moves_aperture_correctly(
run_full_rotation_plan.aperture_scatterguard
)
assert (
await aperture_scatterguard.get_current_aperture_position()
== ApertureValue.SMALL
await aperture_scatterguard.selected_aperture.get_value() == ApertureValue.SMALL
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selected_aperture is the sole HintedSignal of aperture_scatterguard, you should be able to just aperture_scatterguard.read()?

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I'm not sure I see the advantage of this as it's more verbose and now makes the test depend on the fact the signal is hinted but don't care so much so have changed it. Are you suggesting it because read() is the more externally facing API over get_value()?

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Looking at the change to the test I think I was just wrong? I thought that
selected_aperture.read() == ApertureValue.SMALL

And then we could ensure that the selected_aperture was always readable and always gave the ApertureValue as its output.

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Yh, I think even reading the one signal it will still return a dict with the name and value.

But the test shouldn't care if it's readable or hinted. The test is "does doing this plan change the aperture in the expected way". We have other tests that are "can I read the selected aperture in the way I expect" like

mx-bluesky/tests/unit_tests/hyperion/experiment_plans/test_flyscan_xray_centre_plan.py

Line 301 in 1dc26a5

"aperture_scatterguard-selected_aperture": ApertureValue.SMALL,

)


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