121 lines
4.5 KiB
Python
121 lines
4.5 KiB
Python
from datetime import date
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from decimal import Decimal
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import pytest
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from synthgen import dictionary
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from synthgen.config import Config
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from synthgen.counterparties import plan as make_plan
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from synthgen.economy import build_ledgers, last_day, months
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from synthgen.group import build_group
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from synthgen.periods import book_start, build_periods
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D = Decimal
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def _build(**kw):
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cfg = Config(group_size=kw.pop("group_size", 3), periods=kw.pop("periods", 4), osv_counterparties_mean=kw.pop("mean", 20), **kw)
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g = build_group(cfg, dictionary.load())
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ps = build_periods(cfg.start, cfg.periods)
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pl = make_plan(cfg, g)
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return cfg, g, ps, pl, build_ledgers(cfg, g, ps, pl)
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@pytest.fixture(scope="module")
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def built():
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return _build()
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def test_books_balanced(built):
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cfg, g, ps, pl, books = built
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start = book_start(ps)
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for lg in books.values():
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for day in (start, date(2025, 3, 31), date(2025, 12, 31)):
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assert sum(lg.balance(day).values()) == 0
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assert lg.balance(day, "000") == {}
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assert not [p for p in lg.postings if "000" in (p.dt, p.ct) and p.day > start]
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def test_bs_identity(built):
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cfg, g, ps, pl, books = built
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for lg in books.values():
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for p in ps:
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day = p.end
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for acct in ("90", "91"):
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assert lg.balance(day, acct) == {}
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if p.quarter == 4:
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assert lg.balance(day, "99") == {}
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bal = lg.balance(day)
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assert sum(v for (a, _), v in bal.items() if a != "000") == 0
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# активы не уходят в минус: денежные средства на конец каждого месяца
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for y, m in months(ps):
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assert lg.balance(last_day(y, m), "51").get(("51", None), D(0)) >= 0
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def test_externals_used(built):
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cfg, g, ps, pl, books = built
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for (code, acct), lst in pl.by_file.items():
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if not lst or acct not in ("58", "60", "62", "66", "67", "76"):
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continue
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seen = set()
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for p in books[code].postings:
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for an in (p.dt_an, p.ct_an):
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if an is not None and an.cp:
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seen.add(an.cp)
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used = sum(1 for o in lst if o.inn in seen)
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assert used >= 0.8 * len(lst), (code, acct, used, len(lst))
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def test_pareto_shape(built):
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cfg, g, ps, pl, books = built
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tot = {code: sum(c for (a, _), (_, c) in lg.turnover(date(2025, 1, 1), date(2025, 12, 31), "62").items()) for code, lg in books.items()}
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biggest = max(tot, key=tot.get)
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by_cp = {}
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for (a, an), (dt, ct) in books[biggest].turnover(date(2025, 1, 1), date(2025, 12, 31), "62").items():
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if an is not None:
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by_cp[an.cp] = by_cp.get(an.cp, D(0)) + dt + ct
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vals = sorted(by_cp.values(), reverse=True)
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top = max(1, len(vals) // 10)
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assert sum(vals[:top]) >= D("0.5") * sum(vals)
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def test_signs_variety(built):
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cfg, g, ps, pl, books = built
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for acct in ("60", "62"):
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signs = set()
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for lg in books.values():
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for v in lg.balance(date(2025, 12, 31), acct).values():
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signs.add(v > 0)
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assert signs == {True, False}, acct
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def test_year_rollover():
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cfg, g, ps, pl, books = _build(start="2025-Q3")
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dec = date(2025, 12, 31)
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for lg in books.values():
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assert lg.balance(dec, "90") == {} and lg.balance(dec, "91") == {} and lg.balance(dec, "99") == {}
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assert lg.balance(dec, "84") != lg.balance(date(2024, 12, 31), "84")
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t = lg.turnover(date(2026, 1, 1), date(2026, 1, 1), "90")
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assert t == {} # 2026 начинается с нуля; обороты 90 в январе — не 1 января
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jan = lg.turnover(date(2026, 1, 1), date(2026, 1, 31), "90")
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assert any(dt or ct for dt, ct in jan.values())
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assert max(p.day for lg in books.values() for p in lg.postings) == date(2026, 6, 30)
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def test_extra_hook_called_before_close():
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cfg = Config(group_size=2, periods=1, osv_counterparties_mean=5)
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g = build_group(cfg, dictionary.load())
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ps = build_periods(cfg.start, 1)
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seen = []
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def hook(ledgers, year, month):
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seen.append((year, month, len(ledgers["C01"].postings)))
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build_ledgers(cfg, g, ps, make_plan(cfg, g), extra=hook)
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assert [(y, m) for y, m, _ in seen] == [(2025, 1), (2025, 2), (2025, 3)]
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def test_deterministic_and_zero_mean():
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a = _build(mean=0)[4]
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b = _build(mean=0)[4]
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assert [p for p in a["C01"].postings] == [p for p in b["C01"].postings]
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assert a["C01"].postings
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