Light1YT
8242e51b61
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Дополняет движок: exporters/{dxf,pdf}.py (ezdxf + WeasyPrint lazy) + 5 тест-модулей
(geometry/placement/teap_financial/exporters/api). Не вошли в предыдущий commit
(untracked-директории).
114 lines
4.2 KiB
Python
114 lines
4.2 KiB
Python
"""Stage 1c tests — ТЭП and financial model arithmetic.
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Pure-arithmetic unit tests against known footprint geometry: GFA, residential area,
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apartment count, FAR, parking, revenue/cost/margin and the IRR-proxy clamp.
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"""
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from __future__ import annotations
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from shapely.geometry import box
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from app.schemas.concept import TEAP
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from app.services.generative import financial, teap
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# Один прямоугольник 20 x 10 = 200 кв.м пятна.
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_FOOTPRINT = box(0, 0, 20, 10)
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def test_teap_basic_arithmetic() -> None:
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result = teap.compute_teap(
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footprints=[_FOOTPRINT],
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floors=10,
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site_area_sqm=1000.0,
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housing_class="comfort",
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)
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assert result.built_area_sqm == 200.0
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# GFA = пятно * этажность.
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assert result.total_floor_area_sqm == 2000.0
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# FAR = GFA / участок.
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assert result.density == 2.0
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# Жилая = GFA * efficiency(comfort=0.78).
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assert result.residential_area_sqm == 1560.0
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# Квартир = floor(жилая / avg(comfort=55)).
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assert result.apartments_count == int(1560.0 // 55.0)
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# Парковка = ceil(квартир * 1.0).
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assert result.parking_spaces == result.apartments_count
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def test_teap_class_changes_efficiency_and_lot() -> None:
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econ = teap.compute_teap(
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footprints=[_FOOTPRINT], floors=10, site_area_sqm=1000.0, housing_class="econom"
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)
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biz = teap.compute_teap(
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footprints=[_FOOTPRINT], floors=10, site_area_sqm=1000.0, housing_class="business"
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)
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# Эконом эффективнее по площади -> больше жилой при той же GFA.
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assert econ.residential_area_sqm > biz.residential_area_sqm
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# Бизнес — крупнее лот -> меньше квартир.
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assert biz.apartments_count < econ.apartments_count
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# Бизнес — выше норма парковки на квартиру.
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assert biz.parking_spaces / max(1, biz.apartments_count) >= 1.4
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def test_teap_zero_site_area_no_division_error() -> None:
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result = teap.compute_teap(
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footprints=[_FOOTPRINT], floors=5, site_area_sqm=0.0, housing_class="comfort"
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)
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assert result.density == 0.0
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def test_teap_empty_placement_is_zeroed() -> None:
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result = teap.compute_teap(
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footprints=[], floors=9, site_area_sqm=1000.0, housing_class="comfort"
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)
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assert result.built_area_sqm == 0.0
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assert result.total_floor_area_sqm == 0.0
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assert result.apartments_count == 0
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assert result.parking_spaces == 0
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def _teap(residential: float, gfa: float) -> TEAP:
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return TEAP(
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built_area_sqm=100.0,
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total_floor_area_sqm=gfa,
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residential_area_sqm=residential,
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apartments_count=10,
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density=1.0,
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parking_spaces=10,
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)
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def test_financial_revenue_cost_margin() -> None:
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t = _teap(residential=1000.0, gfa=1300.0)
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model = financial.compute_financial(
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teap=t, housing_class="comfort", land_cost_rub=50_000_000.0
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)
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# revenue = 1000 * 145_000.
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assert model.revenue_rub == 1000.0 * 145_000.0
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# cost = 1300 * 88_000 + land.
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assert model.cost_rub == 1300.0 * 88_000.0 + 50_000_000.0
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assert model.gross_margin_rub == model.revenue_rub - model.cost_rub
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def test_financial_land_cost_optional() -> None:
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t = _teap(residential=1000.0, gfa=1300.0)
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no_land = financial.compute_financial(teap=t, housing_class="comfort", land_cost_rub=None)
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with_land = financial.compute_financial(
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teap=t, housing_class="comfort", land_cost_rub=10_000_000.0
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)
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# Земля увеличивает затраты ровно на свою стоимость.
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assert with_land.cost_rub - no_land.cost_rub == 10_000_000.0
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def test_financial_irr_proxy_clamped() -> None:
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# Огромная маржа -> irr-proxy зажат в [-1, 1].
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t = _teap(residential=100_000.0, gfa=1.0)
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model = financial.compute_financial(teap=t, housing_class="business", land_cost_rub=None)
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assert -1.0 <= model.irr <= 1.0
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def test_financial_zero_cost_no_division_error() -> None:
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t = _teap(residential=0.0, gfa=0.0)
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model = financial.compute_financial(teap=t, housing_class="comfort", land_cost_rub=None)
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assert model.irr == 0.0
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assert model.cost_rub == 0.0
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