test: 47 offline tests fail on main (test_575, test_577, test_issue581, docstring ratchet)

[MattGyverLee]

python -m pytest -m "not requires_live_project" -q on main at 04786b0 gives 47 failed, 2730 passed. The identical 47 fail at ad4a1c2 (main before #601), so they come from earlier merged work, not #601.

File	Failures	First error
tests/operations/test_issue581_offline.py	34	ImportError: cannot import name 'ICmPossibility' from 'SIL.LCModel' (unknown location)
tests/operations/test_575_msa_longname_type.py	11	TypeError: object does not implement IMoStemMsa
tests/operations/test_577_inflectable_features.py	1	assert <Mock name='mock.ClassName'> == 'closed' (from GetFeatureType(101))
tests/test_docstring_example_ratchet.py	1	Docstring examples name API that does not exist (needs an example fix or a baseline entry)

The first three look like offline fakes that hit real pythonnet casting or imports (or a Mock ClassName the code now compares by value), rather than product bugs. That's worth confirming per file.

Environment: Windows, FieldWorks 9.3.x installed, the FlexToolsMCP venv (CPython 3.13, pythonnet).

Related: #575, #577, #581 (closed).

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Found during FlexToolsMCP specs/exclusive-access-gate (MattGyverLee/FlexToolsMCP#343); ledger: specs/exclusive-access-gate/issues/filing-ledger.md. Filing authorized by the maintainer on 2026-10-02.

[MattGyverLee]

Verified resolved on main at 024d86f, which includes PR #610 (aac3e2a, offline-gate repair for the MSA/inflection tests) and PR #611.

python -m pytest -m "not requires_live_project" -q -> 2789 passed, 1110 deselected, 0 failed (CPython 3.14.5, Windows, FieldWorks 9.3.x).

All four groups from the report now pass:

• tests/operations/test_issue581_offline.py (was 34 failing, ICmPossibility ImportError)
• tests/operations/test_575_msa_longname_type.py (was 11 failing, IMoStemMsa cast TypeError)
• tests/operations/test_577_inflectable_features.py (was 1 failing, Mock ClassName comparison)
• tests/test_docstring_example_ratchet.py (was 1 failing, unknown-API docstring example)

Run on their own, the four files give 78 passed, 0 skipped. As suspected, these were problems in the offline fakes and the ratchet baseline, not product bugs.

Not re-run on CPython 3.13 (the FlexToolsMCP venv where this was reported); reopen if it still fails there. Closing.