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42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
"""The Landlord-Override main-fuel → heating Simulation Overlay mapping.
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A main-fuel value resolves to the RdSAP `main_fuel_type` int code the calculator
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reads from the dwelling's primary heating system; the overlay is whole-dwelling.
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"""
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from __future__ import annotations
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import pytest
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from domain.epc.property_overlays.main_fuel_overlay import fuel_overlay_for
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def test_mains_gas_overlays_the_primary_fuel() -> None:
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# Act
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simulation = fuel_overlay_for("mains gas", 0)
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# Assert — mains gas (not community) is RdSAP main_fuel code 26.
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assert simulation is not None
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assert simulation.heating is not None
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assert simulation.heating.main_fuel_type == 26
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@pytest.mark.parametrize(
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("main_fuel_value", "code"),
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[
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("electricity", 29),
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("LPG (bulk)", 27),
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("oil", 28),
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("house coal", 33),
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],
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)
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def test_fuels_decode_to_their_modern_not_community_codes(
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main_fuel_value: str, code: int
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) -> None:
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# Act
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simulation = fuel_overlay_for(main_fuel_value, 0)
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# Assert
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assert simulation is not None
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assert simulation.heating is not None
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assert simulation.heating.main_fuel_type == code
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