[Jammy2211]

Summary

Phase A0a(i) of the search-extensibility epic (closes #1666). A tests-only, parametrised metadata/serialization conformance suite over all 15 public searches, collecting and passing on every CI leg including Heart's unittest-nojax. It freezes a golden table per search (default-construction identifier, __identifier_fields__, constructor-argument names) generated from main 908ca61, so every later refactor phase of track A is checked against today's identifiers. No library source changes; no identifier changes.

Checks per search: default construction, family base class, identifier golden (with PYAUTO_TEST_MODE removed, since test mode changes Emcee/Zeus identifiers), constructor-argument set, search.json round trip (af.to_dict → JSON → af.from_dict → af.to_dict), and conf.instance unchanged by construction (under an output.search_internal: false override, because the test config's true masks the mutation).

Strict xfails (each pinned to one exception type with raises=), recording known defects that later epic phases repair:

• round trip: BlackJAXNUTS, SMC — the serialised inverse_mass_matrix kind string is rejected by the constructor (phase A0b);
• config unchanged: Emcee, BlackJAXNUTS, SMC — __init__ sets conf.instance["output"]["search_internal"] = True (phase A3).

Classes are resolved lazily by class-path string inside the tests; only NSS construction requires blackjax and skips when it is absent. No module-level importorskip.

API Changes

None. Tests only.

Test Plan

• pytest test_autofit/non_linear/search/test_conformance.py: 101 passed, 5 xfailed (full env; also with PYAUTO_TEST_MODE=1)
• pytest test_autofit/non_linear: 1023 passed, 1 skipped, 5 xfailed
• no-jax emulation (import hook blocking jax, jaxlib, optax, blackjax; find_spec returns None for them): module collects, 97 passed, 4 skipped (NSS construction cases), 5 xfailed
• perturbation proof: replacing Drawer's golden identifier with the md5 of Drawer(total_draws=51) fails exactly test_identifier_golden[Drawer] (1 failed, 100 passed, 5 xfailed); reverted
• --runxfail confirms exactly the five listed cases fail and nothing else
• CI: unittest (3.12, 3.13) and unittest-nojax legs green

Full API Changes (for automation & release notes)

Removed

• none

Added

• none (test modules only: test_autofit/non_linear/search/conformance_roster.py, test_autofit/non_linear/search/test_conformance.py)

Migration

• none

Generated by the PyAutoLabs agent workflow.

🤖 Generated with Claude Code

https://claude.ai/code/session_01QJmrnXNQdq6HSruUt3MqVW