Fix flakey undulator dcm test - #2142
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ophyd-async 0.20.1 adds set_mock_attr (in ophyd_async.core) and enforces that test code can no longer assign directly to attribute names that collide with bluesky protocol verbs (set, read, trigger, kickoff, complete, prepare, describe, check_value). Replace direct assignments like `signal.set = AsyncMock(...)` with `set_mock_attr(signal, "set", AsyncMock(...))` across the affected test files and fixtures. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EQPRwf3pUved4ihrBLPi1g
The set_mock_attr fixes in the previous commit cover every reserved-attr NameError that this autouse fixture was blanket-suppressing, so the mask is no longer needed. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EQPRwf3pUved4ihrBLPi1g
set_mock_attr(device, "attr", mock) doesn't let pyright narrow device.attr to the mock's type, so later device.attr.assert_*() calls failed with reportAttributeAccessIssue. Capture set_mock_attr's return value (it returns the mock unchanged, per its own docstring) and assert on that instead. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EQPRwf3pUved4ihrBLPi1g
…LightSource/dodal into update_to_ophyd_async_0_20
oliwenmandiamond
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July 29, 2026 09:55
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2142 +/- ##
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Coverage 99.16% 99.16%
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Files 354 354
Lines 13848 13848
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Hits 13732 13732
Misses 116 116 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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Fixes #2141
Have verified that it is no longer flakey using the event_loop_fuzzing fixture and ran 100 times and all passed as shown below
Instructions to reviewer on how to test:
Checks for reviewer
dodal connect ${BEAMLINE}