test(rectification): compare same-day scores against legacy path in process

Replace machine-specific float hashes with strict score and matrix byte comparisons. Keep quick bridge coverage and document duplicate collection. Verify Windows/Linux float behavior and in-memory candidate-date reversal; record the separate-machine acceptance gap and BUG-984 end-to-end blocker.

Co-Authored-By: Claude Code <noreply@anthropic.com>

tests/test_dasha_transition_proximity_cross_midnight.py

@@ -1,7 +1,6 @@
 """Candidate-local dasha dates; public AA replay and synthetic cache boundaries."""
 from __future__ import annotations
 
-import hashlib
 import json
 from datetime import date, datetime, timedelta
 
@@ -100,20 +99,39 @@ def test_legacy_context_without_candidate_at_retains_request_date(monkeypatch):
     assert calls == ["2000-01-01", "2000-01-01"]
 
 
-@pytest.mark.parametrize("ordinal,score_sha256", [
-    (1, "2aabdda6bb56baf6a9d0b119964ee1ab8023fede9ea8703f6d265207c490bec2"),
-    (2, "6585d895aeb79e26257b1002696c16b5e252f9a702f2a5702f929fd80486abb9"),
-    (3, "246296903d915e4886229530fa554428d7f65fb686f70cc369711347ebaf2610"),
-])
-def test_same_day_public_aa_scores_keep_pre_fix_bytes(ordinal, score_sha256):
-    # Golden hashes captured from the unmodified production path, 121 minutes each.
-    # Only ordinal and score bytes are retained; no birth data or coordinates.
+@pytest.mark.parametrize("ordinal", [1, 2, 3])
+def test_same_day_public_aa_scores_keep_pre_fix_bytes(monkeypatch, ordinal):
+    from scripts.rectification import scoring_service
+
+    # BUG-985 / BUG-733: equivalence is same-process, not a cross-machine float golden.
     request, moments = shifted_window(_cases()[ordinal - 1], 0, 60)
-    assert len({moment.date() for moment in moments}) == 1
-    built = build_event_contribution_matrix(request)
+    assert {moment.date().isoformat() for moment in moments} == {request["birth_date"]}
+    contexts = compute_candidate_static_contexts(request)
+    assert [context["candidate_at"] for context in contexts] == moments
+    built = build_event_contribution_matrix(request, static_contexts=contexts)
     scores = [row["score"] for row in score_from_matrix(request, built)]
-    assert len(scores) == 121
-    assert hashlib.sha256(_canonical(scores)).hexdigest() == score_sha256
+    legacy_calls = []
+
+    def legacy_merge(matrix, events, static_contexts, birth_date, **kwargs):
+        # Strip only at the helper boundary; the main event engine needs candidate_at.
+        assert static_contexts is contexts
+        legacy_contexts = [
+            {key: value for key, value in context.items() if key != "candidate_at"}
+            for context in static_contexts
+        ]
+        legacy_calls.append(len(legacy_contexts))
+        return proximity.merge_transition_proximity(
+            matrix, events, legacy_contexts, birth_date, **kwargs,
+        )
+
+    with monkeypatch.context() as legacy:
+        legacy.setattr(scoring_service, "merge_transition_proximity", legacy_merge)
+        legacy_built = build_event_contribution_matrix(request, static_contexts=contexts)
+    legacy_scores = [row["score"] for row in score_from_matrix(request, legacy_built)]
+    assert legacy_calls == [121]
+    assert len(scores) == len(legacy_scores) == 121
+    assert _canonical(scores) == _canonical(legacy_scores)
+    assert _canonical(built["matrix"]) == _canonical(legacy_built["matrix"])
 
 
 def test_real_cross_midnight_all_candidates_match_independent_dated_calculation(monkeypatch):

tests/test_rectification_cross_midnight_gate.py

@@ -1,4 +1,9 @@
-"""Collect candidate-date regressions through quick's test_rectification_*.py glob."""
+"""Collect candidate-date regressions through quick's test_rectification_*.py glob.
+
+The re-export deliberately keeps all nine cases inside the quick gate. If both
+this bridge and the source file are selected (e.g. the full suite), pytest runs
+them twice: eighteen collected items are nine independent cases, not eighteen.
+"""
 
 from tests.test_dasha_transition_proximity_cross_midnight import (  # noqa: F401
     test_every_candidate_uses_own_date_and_caches_do_not_cross_dates,