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Slice 77: RED tracer-bullet diff test for cohort 000487

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Mirror the cohort 000474/000477/000480 mapper-vs-hand-built diff
tests for cert U985-0001-000487 (Enclosed Mid-Terrace, main + 1
extension + RIR with explicit-U gable_wall_external, gas combi, 1
electric shower, 1.43 m² timber-frame alt wall on the extension).
RED with ~45 load-bearing divergences — larger than 000477/000480
because of the RIR detailed_surfaces ordering difference, the alt-
wall encoding wrinkle (hand-built `_WC_TIMBER_FRAME=8` is actually
SAP10 Park-home; mapper extracts the correct timber-frame code 5),
and `dwelling_type='Enclosed Mid-Terrace house'` (not plain Mid-
Terrace). Closes via Slice 78 (Cat A) + Slice 79 (alt-wall + RIR
reorder) + Slice 80 (window expansion).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Khalim Conn-Kowlessar 2026-05-25 17:57:16 +00:00
parent 67564caffc
commit 4b74281412
1 changed files with 33 additions and 0 deletions
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33
backend/documents_parser/tests/test_summary_pdf_mapper_chain.py
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@ -42,6 +42,7 @@ from domain.sap.worksheet.tests import (
_elmhurst_worksheet_000474 as _w000474,
_elmhurst_worksheet_000477 as _w000477,
_elmhurst_worksheet_000480 as _w000480,
_elmhurst_worksheet_000487 as _w000487,
)
_FIXTURES = Path(__file__).parent / "fixtures"
@ -628,3 +629,35 @@ def test_from_elmhurst_site_notes_matches_hand_built_000480() -> None:
f"hand-built EpcPropertyData for cohort cert 000480:\n " +
"\n ".join(diffs)
)
def test_from_elmhurst_site_notes_matches_hand_built_000487() -> None:
# Arrange — _elmhurst_worksheet_000487.build_epc() is the canonical
# hand-built EpcPropertyData for cert U985-0001-000487 (Enclosed
# Mid-Terrace, main + 1 extension + 21.03 m² RIR with explicit-U
# gable_wall_external, gas combi, 1 electric shower, 1.43 m²
# timber-frame alt wall on the extension); it cascades to the
# worksheet PDF's `SAP value 61.6431` at 1e-4. Routing the Summary
# PDF through the Elmhurst mapper MUST produce a load-bearing-
# field-equivalent EpcPropertyData; any divergence is a mapper-
# coverage gap to close as its own slice.
pages = _summary_pdf_to_textract_style_pages(_SUMMARY_000487_PDF)
site_notes = ElmhurstSiteNotesExtractor(pages).extract()
mapped = EpcPropertyDataMapper.from_elmhurst_site_notes(site_notes)
hand_built = _w000487.build_epc()
# Act
diffs: list[str] = []
for field_name in _LOAD_BEARING_FIELDS:
diffs.extend(_diff_load_bearing(
getattr(mapped, field_name, None),
getattr(hand_built, field_name, None),
field_name,
))
# Assert
assert not diffs, (
f"{len(diffs)} load-bearing divergence(s) between mapped and "
f"hand-built EpcPropertyData for cohort cert 000487:\n " +
"\n ".join(diffs)
)