"""Wave-2 cell stubs — contract clauses named, implementations interlocked. These are deliberate ``pytest.skip`` placeholders, not TODOs: each names the exact contract clause it will pin and the reason it is not implemented in the skeleton PR. See the tracking issue (#80921) for the full ~39-cell matrix. """ from __future__ import annotations import pytest def test_cell4_fork_determinism_on_rewind_stub(): """Cell 4 — fork determinism on the edit/rewind paths. Contract clause: after an edit/rewind fork, recovery yields exactly the chosen prefix (no resurrection of superseded turns, no archived-copy duplication), deterministically across independent recovery passes. Deliberately deferred: the rewind/archive semantics this cell would pin are being actively redesigned in #82956–#82959 (durable row-id addressing, archive-mode dedup, /retry archive_drop plumbing). Writing the cell against today's behavior would test a moving target; it lands as that cluster's conformance check once the contract settles. """ pytest.skip( "wave 2: interlocked with the rewind/archive redesign " "(#82956-#82959) — cell lands as that cluster's conformance check" ) def test_cell5_delivery_outbox_exactly_once_stub(): """Cell 5 — effect exactly-once across the delivery outbox boundary. Contract clause: a crash between provider send and durable record must not double-deliver on catch-up (cron ticker restart, gateway reboot) — the cell the paper (arXiv:2608.03836) probes as 'effect exactly-once', distinct from cell 2's consume-once (claim vs side-effect). Deliberately deferred: requires a deterministic fake-transport seam for the delivery path (the send must be observable without a live adapter); the cron delivery-scope interplay is also in flight (#83197/#83557). """ pytest.skip( "wave 2: needs a deterministic fake-transport seam; cron delivery " "scope fixes in flight (#83197/#83557)" )