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Slice 2. `harness.plan_table.format_plan_table(plan)` renders a Plan as a plain-text table — one package summary line (baseline SAP/band -> post SAP/band, CO2 saved, cost of works + contingency, bill saved) and one line per Plan Measure (signed SAP points, cost, delivered kWh + £ savings). Pure presentation: reads the Plan, computes nothing. The DB-less First Run test now prints it (visible under `pytest -s`) so the modelled package can be eyeballed and debugged by hand. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
"""The sense-check table the DB-less harness prints for a Plan."""
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from __future__ import annotations
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from domain.modelling.plan import Plan, PlanMeasure
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from domain.modelling.recommendation import Cost
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from domain.modelling.scoring.package_scorer import Score
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from domain.modelling.scoring.scoring import MeasureImpact
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from harness.plan_table import format_plan_table
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def _plan() -> Plan:
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baseline = Score(
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sap_continuous=57.4, co2_kg_per_yr=3000.0, primary_energy_kwh_per_yr=300.0
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)
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post = Score(
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sap_continuous=61.2, co2_kg_per_yr=2100.0, primary_energy_kwh_per_yr=240.0
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)
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measures = (
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PlanMeasure(
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measure_type="cavity_wall_insulation",
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description="Cavity wall insulation",
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cost=Cost(total=500.0, contingency_rate=0.1),
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impact=MeasureImpact(
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sap_points=3.1,
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co2_savings_kg_per_yr=600.0,
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energy_savings_kwh_per_yr=1200.0,
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),
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kwh_savings=900.0,
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energy_cost_savings=120.0,
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),
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PlanMeasure(
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measure_type="mechanical_ventilation",
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description="Mechanical extract ventilation",
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cost=Cost(total=900.0, contingency_rate=0.26),
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impact=MeasureImpact(
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sap_points=-1.3,
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co2_savings_kg_per_yr=-50.0,
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energy_savings_kwh_per_yr=-200.0,
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),
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kwh_savings=-150.0,
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energy_cost_savings=-30.0,
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),
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)
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return Plan(measures=measures, baseline=baseline, post_retrofit=post)
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def test_table_shows_package_transition_and_each_measure() -> None:
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# Arrange
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plan: Plan = _plan()
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# Act
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table: str = format_plan_table(plan)
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# Assert — the package SAP transition (both bands resolve to D), and each
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# measure's signed SAP contribution against its type.
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assert "57.4" in table
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assert "61.2" in table
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assert "(D)" in table
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assert "cavity_wall_insulation" in table
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assert "+3.1" in table
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assert "mechanical_ventilation" in table
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assert "-1.3" in table
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# The package cost of works (500 + 900) appears.
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assert "1,400" in table
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