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Recognise an air source heat pump via the default ASHP code 🟥

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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Khalim Conn-Kowlessar 2026-06-30 17:28:48 +00:00
parent dbcd2e3840
commit 646bff38a6
1 changed files with 15 additions and 0 deletions
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15
tests/domain/epc/test_main_heating_system_overlay.py
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@ -452,3 +452,18 @@ def test_solid_fuel_room_heater_defaults_to_house_coal_as_its_natural_fuel() ->
assert simulation is not None
assert simulation.heating is not None
assert simulation.heating.main_fuel_type == 33
def test_air_source_heat_pump_decodes_to_the_default_ashp_code() -> None:
# A landlord names "air source heat pump" without a PCDB model. It is
# modellable via the SAP Table 4a default ASHP code (211, "flow temp in other
# cases", default SPF 2.30) — no main_heating_index_number needed — so it must
# decode to 211, not produce no overlay / fall to Unknown (ADR-0041).
# Act
simulation = main_heating_overlay_for("Air source heat pump", 0)
# Assert — SAP Table 4a code 211 (default air-source heat pump).
assert simulation is not None
assert simulation.heating is not None
assert simulation.heating.sap_main_heating_code == 211