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Rate MVHR dwellings via Table 4g and biomass heat networks via Table 12 code 43 🟥

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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Daniel Roth 2026-07-16 16:04:05 +00:00
parent 7a81fbfa45
commit 38e9ebd5c7
1 changed files with 41 additions and 0 deletions
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41
datatypes/epc/domain/tests/test_from_site_notes.py
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@ -157,6 +157,30 @@ class TestCommunityHeatingMapping:
assert main.sap_main_heating_code == 301
assert main.main_fuel_type == 51
def test_community_biomass_boilers_lodge_table_12_biomass_fuel(self) -> None:
# Arrange — PasHub renders the community fuel with the Table 12 row
# wording (`Heat from boilers - biomass`), unlike the Elmhurst §14.1
# labels (`Biomass`).
data = load("pashub_rdsap_site_notes_example1.json")
mh = data["heating_and_hot_water"]["main_heating"]
mh["system_type"] = "Community heating system"
mh["community_heat_source"] = "Community heating - boilers only"
mh["fuel"] = "Heat from boilers - biomass"
mh["controls"] = (
"Charging system linked to use of community heating, room thermostat only"
)
mh["product_id"] = 0
survey = from_dict(PasHubRdSapSiteNotes, data)
# Act
main = EpcPropertyDataMapper.from_site_notes(
survey
).sap_heating.main_heating_details[0]
# Assert — Table 12 code 43 (heat from boilers — biomass).
assert main.sap_main_heating_code == 301
assert main.main_fuel_type == 43
def test_unknown_heat_source_strict_raises(self) -> None:
# Arrange
data = load("pashub_rdsap_site_notes_example1.json")
@ -170,6 +194,22 @@ class TestCommunityHeatingMapping:
with pytest.raises(UnmappedPasHubLabel, match="community heat source"):
EpcPropertyDataMapper.from_site_notes(survey)
def test_unknown_community_fuel_strict_raises(self) -> None:
# Arrange — a recognised heat source with an uncovered fuel label. It
# must strict-raise at the boundary rather than pass the raw string
# through to the calculator's deep `MissingMainFuelType` (ADR-0015).
data = load("pashub_rdsap_site_notes_example1.json")
mh = data["heating_and_hot_water"]["main_heating"]
mh["system_type"] = "Community heating system"
mh["community_heat_source"] = "Community heating - boilers only"
mh["fuel"] = "Some novel fuel"
mh["controls"] = ""
survey = from_dict(PasHubRdSapSiteNotes, data)
# Act / Assert
with pytest.raises(UnmappedPasHubLabel, match="community fuel"):
EpcPropertyDataMapper.from_site_notes(survey)
class TestRoomInRoofMapping:
"""A surveyed room-in-roof block (RdSAP §3.10 detailed measurement) must
@ -833,6 +873,7 @@ class TestMechanicalVentilationKindCoding:
("Mechanical Extract - Centralised", "EXTRACT_OR_PIV_OUTSIDE"),
("Positive Input - From Outside", "EXTRACT_OR_PIV_OUTSIDE"),
("Positive Input - From Loft (As Natural)", None),
("MV - Heat Recovery", "MVHR"),
],
)
def test_label_maps_to_mechanical_kind(