[Jammy2211]

Summary

Adds regression tests for the macOS/Windows branch of fork_context() fixed by community PR #1657 (discussion https://github.com/orgs/PyAutoLabs/discussions/27). Ubuntu CI never reaches that branch, so the tests monkeypatch sys.platform (darwin, and win32 with get_all_start_methods patched to ["spawn"]) and assert:

• fork_context() returns the multiprocessing module itself, exposing Process, Queue, Pool;
• a spy on multiprocessing.get_context sees no no-argument call on that path — the import-time call that fixed the default start method and made a later set_start_method(...) raise "context has already been set".

The existing Linux get_context("fork") assertions are unchanged. monkeypatch restores all state, so conftest's start-method setting is unaffected.

Closes #1661.

API Changes

None — test-only change.
See full details below.

Test Plan

• python -m pytest test_autofit/non_linear/test_fork_context.py -q — 8 passed
• Witness: with context.py's final line reverted to return multiprocessing.get_context(), the 4 new tests fail; restored, all 8 pass
• Full test_autofit suite — 2965 passed, 2 skipped (8 min)

Heart readiness at ship: YELLOW (release validation stale; manifest drift; Hands "PyAuto Release" and Heart "Workspace Smoke" red) — acknowledged by the human for development PRs.

Full API Changes (for automation & release notes)

Removed

• None

Added

• None (tests only)

Migration

• None

Generated by the PyAutoLabs agent workflow.

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