feat(tradein): daily asking→sold ratio refresh (#648 S4)
Scheduled job recompute_asking_to_sold_ratios re-derives asking_to_sold_ratios daily so the estimator's asking→sold correction doesn't go stale as nightly ДКП deals import. TRUE-MIRROR refresh: DELETE WHERE district='' + re-run the 080 derivation INSERT...SELECT in one transaction (atomic, single commit) — drops stale per-rooms rows that fall below the 30/30 threshold, which the 080 ON CONFLICT DO UPDATE seed would have left behind. - app/tasks/asking_to_sold_ratio.py: sync task (run_in_executor); derivation byte-identical to migration 080; returns/logs counters; rollback+mark_failed +re-raise on error. - scheduler.py: trigger_asking_to_sold_ratio_run + dispatch (mirrors #570 snapshot). - migration 082: seed scrape_schedules enabled=true, window 06:00-07:00 UTC (after rosreestr import), ON CONFLICT DO NOTHING. - 26 tests.
This commit is contained in:
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4 changed files with 634 additions and 0 deletions
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@ -14,6 +14,10 @@ Sources:
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- rosreestr_dkp_import → import_rosreestr_dkp (this module, #563)
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- listing_source_snapshot → snapshot_listing_sources (tasks/listing_source_snapshot.py, #570;
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pure internal DB snapshot — no external calls, enabled by default)
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- asking_to_sold_ratio_refresh → recompute_asking_to_sold_ratios
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(tasks/asking_to_sold_ratio.py, #648 Stage 4; pure internal DB
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re-derivation of the asking→sold ratios — no external calls,
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enabled by default; window after rosreestr_dkp_import)
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"""
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from __future__ import annotations
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@ -405,6 +409,45 @@ async def trigger_listing_source_snapshot_run(
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return run_id
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async def trigger_asking_to_sold_ratio_run(
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db: Session, schedule_row: dict[str, Any]
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) -> int | None:
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"""Создать scrape_runs + launch recompute_asking_to_sold_ratios в executor (sync DB-only task).
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Daily TRUE-MIRROR refresh асking→sold коэффициентов (#648 Stage 4): DELETE WHERE
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district='' + re-derive INSERT (та же 080-derivation) в одной транзакции, чтобы ratio
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не устаревал по мере ночного импорта ДКП. Mirror trigger_listing_source_snapshot_run:
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задача синхронная (чистый internal DB re-derive, БЕЗ внешних HTTP-вызовов / анти-бота),
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поэтому гоняем её в run_in_executor. SAFE to enable — schedule seed enabled=true (082),
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в отличие от avito/yandex sweep (dormant).
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Returns run_id (или None если skip — есть running run).
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"""
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run_id = _claim_run(db, schedule_row)
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if run_id is None:
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return None
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async def _run() -> None:
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run_db = SessionLocal()
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try:
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# recompute_asking_to_sold_ratios is synchronous (DB-only, no async HTTP)
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from app.tasks.asking_to_sold_ratio import recompute_asking_to_sold_ratios
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loop = asyncio.get_event_loop()
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await loop.run_in_executor(None, recompute_asking_to_sold_ratios, run_db, run_id)
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except Exception:
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logger.exception(
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"scheduler: recompute_asking_to_sold_ratios crashed run_id=%d", run_id
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)
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finally:
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run_db.close()
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task = asyncio.create_task(_run())
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task.add_done_callback(lambda t: t.exception() if not t.cancelled() else None)
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logger.info("scheduler: triggered asking_to_sold_ratio_refresh run_id=%d", run_id)
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return run_id
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def import_rosreestr_dkp(
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db: Session,
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run_id: int,
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@ -676,6 +719,8 @@ async def scheduler_loop() -> None:
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await trigger_rosreestr_dkp_run(db, sch)
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elif source == "listing_source_snapshot":
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await trigger_listing_source_snapshot_run(db, sch)
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elif source == "asking_to_sold_ratio_refresh":
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await trigger_asking_to_sold_ratio_run(db, sch)
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else:
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logger.warning("scheduler: unknown source=%s, skip", source)
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finally:
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223
tradein-mvp/backend/app/tasks/asking_to_sold_ratio.py
Normal file
223
tradein-mvp/backend/app/tasks/asking_to_sold_ratio.py
Normal file
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@ -0,0 +1,223 @@
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"""Daily recompute of the asking→sold correction ratios (#648 Stage 4).
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ПРОБЛЕМА: asking_to_sold_ratios (migration 080) засеяна один раз derivation-CTE
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(медиана SOLD ДКП за 12 мес vs медиана ASKING активных listings, per-rooms + global -1
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fallback). Оценщик (estimator.py, Stage 3) читает её per-estimate (cache 300s) и домножает
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asking-median прогноз на sold/asking. По мере ночного импорта новых ДКП-сделок
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(rosreestr_dkp_import) ratio устаревает — нужен периодический пересчёт по тому же derivation.
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TRUE-MIRROR REFRESH (флаг database-expert): 080-seed использовал ON CONFLICT DO UPDATE,
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который при повторном прогоне ОБНОВЛЯЕТ существующие строки, но НЕ удаляет per-rooms строки
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бакетов, упавших ниже порога 30/30 на более позднем прогоне (StaLE rows). Поэтому refresh
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сначала DELETE FROM asking_to_sold_ratios WHERE district = '' (все строки #648), затем
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заново гоняет ту же 080-derivation INSERT...SELECT. DELETE+INSERT в ОДНОЙ транзакции
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(атомарно — таблица никогда не пуста mid-refresh). После commit таблица == свежий re-seed.
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Задача синхронная (DB-only, никаких внешних HTTP-вызовов) — запускается in-app
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scheduler'ом через trigger_asking_to_sold_ratio_run() (scheduler.py), по образцу
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snapshot_listing_sources / import_rosreestr_dkp (sync task в run_in_executor).
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Окно расписания 06:00-07:00 UTC — ПОСЛЕ rosreestr_dkp_import (04:00-06:00 UTC), чтобы
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refresh потреблял свежие ДКП-сделки того же дня.
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SQL derivation ниже — БАЙТ-В-БАЙТ та же логика, что seed в data/sql/080_asking_to_sold_ratios.sql
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(deal_side / ask_side / per_bucket + deal_global / ask_global / global_row: трейлинг-12мес
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окно, ppm²-полоса [30000,600000], бакет LEAST(GREATEST(rooms,0),4), порог n_deals>=30 AND
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n_listings>=30 для per_rooms, global -1 строка всегда). ON CONFLICT убран — DELETE идёт первым,
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конфликтов нет (повторный прогон в одной tx невозможен, refresh = re-seed по семантике).
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"""
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from __future__ import annotations
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import logging
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from sqlalchemy import text
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from sqlalchemy.orm import Session
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from app.services import scrape_runs as runs_mod
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logger = logging.getLogger(__name__)
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# ── True-mirror cleanup: drop all #648 rows before re-derivation ──────────────
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# district = '' — все строки #648 (district зарезервирован под #647, пока всегда '').
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# Удаляем ПЕРЕД re-derive, чтобы бакеты, упавшие ниже порога 30/30, не оставались
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# stale (ON CONFLICT DO UPDATE такие строки бы не тронул). В одной транзакции с INSERT.
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_DELETE_SQL = text(
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"""
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DELETE FROM asking_to_sold_ratios
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WHERE district = ''
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"""
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)
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# ── Derivation + re-seed (БАЙТ-В-БАЙТ из 080, ON CONFLICT убран — DELETE идёт первым) ──
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# deal_side / ask_side / per_bucket + deal_global / ask_global / global_row:
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# sold_median = percentile_cont(0.5) по deals.price_per_m2 (source='rosreestr',
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# ppm² ∈ [30000,600000], deal_date >= CURRENT_DATE − 12 months),
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# бакет LEAST(GREATEST(rooms,0),4).
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# ask_median = percentile_cont(0.5) по listings.price_per_m2 (is_active, та же ppm²-полоса).
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# per_rooms строки — только при n_deals>=30 AND n_listings>=30 AND ask>0 AND sold>0.
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# global -1 строка (basis='global_fallback') — всегда (если ask>0 AND sold>0). window_months=12.
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# Литералы (порог/окно/полоса) — без bind-параметров, поэтому CAST(:x AS type) не нужен.
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_REDERIVE_SQL = text(
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"""
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WITH
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-- SOLD медианы по бакетам комнат за трейлинг-12мес (ДКП Росреестра).
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deal_side AS (
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SELECT
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LEAST(GREATEST(rooms, 0), 4) AS rooms_bucket,
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percentile_cont(0.5) WITHIN GROUP (ORDER BY price_per_m2) AS sold_median,
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COUNT(*) AS n_deals
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FROM deals
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WHERE source = 'rosreestr'
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AND rooms IS NOT NULL
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AND price_per_m2 BETWEEN 30000 AND 600000
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AND deal_date >= CURRENT_DATE - INTERVAL '12 months'
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GROUP BY LEAST(GREATEST(rooms, 0), 4)
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),
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-- ASKING медианы по бакетам комнат среди ТЕКУЩИХ активных объявлений.
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ask_side AS (
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SELECT
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LEAST(GREATEST(rooms, 0), 4) AS rooms_bucket,
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percentile_cont(0.5) WITHIN GROUP (ORDER BY price_per_m2) AS ask_median,
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COUNT(*) AS n_listings
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FROM listings
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WHERE is_active
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AND rooms IS NOT NULL
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AND price_per_m2 BETWEEN 30000 AND 600000
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GROUP BY LEAST(GREATEST(rooms, 0), 4)
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),
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-- Per-rooms строки: только бакеты с обеими сторонами, прошедшие порог 30/30 и ask>0.
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-- Тонкие бакеты (n<30) сюда НЕ попадают → estimator делает fallback на -1.
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per_bucket AS (
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SELECT
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d.rooms_bucket,
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''::text AS district,
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(d.sold_median / a.ask_median)::numeric AS ratio,
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round(d.sold_median)::bigint AS sold_median,
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round(a.ask_median)::bigint AS ask_median,
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d.n_deals::int AS n_deals,
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a.n_listings::int AS n_listings,
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12 AS window_months,
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'per_rooms'::text AS basis
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FROM deal_side d
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JOIN ask_side a USING (rooms_bucket)
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WHERE d.n_deals >= 30
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AND a.n_listings >= 30
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AND a.ask_median IS NOT NULL
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AND a.ask_median > 0
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AND d.sold_median IS NOT NULL -- divide-safety (порог n_deals>=30 гарантирует)
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AND d.sold_median > 0
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),
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-- SOLD медиана по ВСЕМ комнатам (без бакет-фильтра) за трейлинг-12мес — для global row.
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deal_global AS (
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SELECT
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percentile_cont(0.5) WITHIN GROUP (ORDER BY price_per_m2) AS sold_median,
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COUNT(*) AS n_deals
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FROM deals
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WHERE source = 'rosreestr'
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AND rooms IS NOT NULL
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AND price_per_m2 BETWEEN 30000 AND 600000
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AND deal_date >= CURRENT_DATE - INTERVAL '12 months'
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),
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-- ASKING медиана по ВСЕМ активным listings (без бакет-фильтра) — для global row.
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ask_global AS (
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SELECT
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percentile_cont(0.5) WITHIN GROUP (ORDER BY price_per_m2) AS ask_median,
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COUNT(*) AS n_listings
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FROM listings
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WHERE is_active
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AND rooms IS NOT NULL
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AND price_per_m2 BETWEEN 30000 AND 600000
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),
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-- Global fallback строка rooms_bucket=-1 (пишется всегда, если ask>0).
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global_row AS (
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SELECT
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-1 AS rooms_bucket,
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''::text AS district,
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(d.sold_median / a.ask_median)::numeric AS ratio,
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round(d.sold_median)::bigint AS sold_median,
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round(a.ask_median)::bigint AS ask_median,
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d.n_deals::int AS n_deals,
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a.n_listings::int AS n_listings,
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12 AS window_months,
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'global_fallback'::text AS basis
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FROM deal_global d
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CROSS JOIN ask_global a
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WHERE a.ask_median IS NOT NULL
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AND a.ask_median > 0
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AND d.sold_median IS NOT NULL -- защита от пустого окна сделок (иначе ratio=NULL)
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AND d.sold_median > 0
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)
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INSERT INTO asking_to_sold_ratios (
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rooms_bucket, district, ratio, sold_median, ask_median,
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n_deals, n_listings, window_months, basis
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)
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SELECT rooms_bucket, district, ratio, sold_median, ask_median,
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n_deals, n_listings, window_months, basis FROM global_row
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UNION ALL
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SELECT rooms_bucket, district, ratio, sold_median, ask_median,
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n_deals, n_listings, window_months, basis FROM per_bucket
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"""
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)
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# ── Post-insert counters ──────────────────────────────────────────────────────
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# Считываем итог из таблицы (всё ещё в той же транзакции — до commit): сколько строк
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# записано всего, сколько per_rooms, был ли использован global -1 fallback.
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_COUNTERS_SQL = text(
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"""
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SELECT
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COUNT(*) AS rows_written,
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COUNT(*) FILTER (WHERE basis = 'per_rooms') AS per_rooms_rows,
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COUNT(*) FILTER (WHERE rooms_bucket = -1) AS used_global_fallback
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FROM asking_to_sold_ratios
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WHERE district = ''
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"""
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)
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def recompute_asking_to_sold_ratios(db: Session, run_id: int) -> dict[str, int]:
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"""Пересчитать asking_to_sold_ratios (TRUE-MIRROR refresh, #648 Stage 4).
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Sync (вызывается scheduler-триггером в executor, как snapshot_listing_sources).
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В ОДНОЙ транзакции (атомарно — таблица никогда не пуста mid-refresh):
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1. DELETE FROM asking_to_sold_ratios WHERE district = '' — снести stale-строки.
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2. Заново прогнать 080-derivation INSERT...SELECT (per_rooms при 30/30 + global -1).
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Затем counters из таблицы, commit, mark_done. Семантика == re-seed миграции 080.
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Финализирует scrape_runs (mark_done / mark_failed) и пишет counters.
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Returns {"rows_written": N, "per_rooms_rows": M, "used_global_fallback": 0|1}.
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"""
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counters: dict[str, int] = {
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"rows_written": 0,
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"per_rooms_rows": 0,
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"used_global_fallback": 0,
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}
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try:
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# DELETE + re-derive INSERT в одной транзакции (НЕ коммитим между ними —
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# таблица не должна остаться пустой, если INSERT упадёт).
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db.execute(_DELETE_SQL)
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db.execute(_REDERIVE_SQL)
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row = db.execute(_COUNTERS_SQL).mappings().first()
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if row is not None:
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counters["rows_written"] = int(row["rows_written"] or 0)
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counters["per_rooms_rows"] = int(row["per_rooms_rows"] or 0)
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counters["used_global_fallback"] = int(row["used_global_fallback"] or 0)
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db.commit()
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runs_mod.mark_done(db, run_id, counters)
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logger.info(
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"recompute_asking_to_sold_ratios run_id=%d done: "
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"rows_written=%d per_rooms_rows=%d used_global_fallback=%d",
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run_id,
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counters["rows_written"],
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counters["per_rooms_rows"],
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counters["used_global_fallback"],
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)
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return counters
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except Exception as exc:
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logger.exception("recompute_asking_to_sold_ratios run_id=%d failed", run_id)
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db.rollback()
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runs_mod.mark_failed(db, run_id, str(exc)[:1000], counters)
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raise
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@ -0,0 +1,53 @@
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-- 082_scrape_schedules_seed_ratio_refresh.sql
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-- #648 Stage 4 — seed scrape_schedules row для daily asking→sold ratio refresh.
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--
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-- ПРОБЛЕМА: asking_to_sold_ratios (migration 080) засеяна один раз; оценщик (estimator.py,
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-- Stage 3) читает её per-estimate (cache 300s) и домножает asking-median прогноз на
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-- sold/asking. По мере ночного импорта новых ДКП-сделок (rosreestr_dkp_import) ratio
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-- устаревает. Stage 4 = TRUE-MIRROR refresh-задача recompute_asking_to_sold_ratios()
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-- (app/tasks/asking_to_sold_ratio.py): DELETE WHERE district='' + re-derive INSERT
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-- (та же 080-derivation) в одной транзакции, по расписанию. Запускается in-app
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-- scheduler'ом (source='asking_to_sold_ratio_refresh', trigger_asking_to_sold_ratio_run).
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--
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-- enabled = true — БЕЗОПАСНО включать сразу: pure-internal DB re-derivation, никаких
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-- внешних HTTP-вызовов / анти-бота (в отличие от avito/yandex sweep, которые seed'ятся
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-- DORMANT). DELETE+INSERT атомарны (одна транзакция) — таблица не остаётся пустой.
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-- Окно 06:00-07:00 UTC — ПОСЛЕ rosreestr_dkp_import (04:00-06:00 UTC, см. 072), чтобы
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-- refresh потреблял свежие ДКП-сделки того же дня (а не отставал на сутки).
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-- next_run_at = завтрашнее наступление окна (tomorrow + 06:00 UTC), иначе при NULL
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-- get_due_schedules() выстрелит сразу после деплоя. AT TIME ZONE 'UTC' фиксирует
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-- wall-clock час в UTC независимо от session TimeZone GUC (образец 078/079).
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--
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-- ЗАВИСИМОСТИ: 052_scrape_schedules.sql (таблица + UNIQUE(source)),
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-- 080_asking_to_sold_ratios.sql (таблица, derivation которую переиспользует refresh).
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-- Idempotent: ON CONFLICT (source) DO NOTHING — безопасно запускать повторно.
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-- Apply after: 081_trade_in_estimates_expected_sold.sql
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BEGIN;
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INSERT INTO scrape_schedules (
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source,
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enabled,
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window_start_hour,
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window_end_hour,
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next_run_at,
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||||
default_params
|
||||
)
|
||||
VALUES
|
||||
(
|
||||
'asking_to_sold_ratio_refresh',
|
||||
true, -- SAFE: pure internal DB, no external calls
|
||||
6,
|
||||
7,
|
||||
((CURRENT_DATE + INTERVAL '1 day') + make_interval(hours => 6)) AT TIME ZONE 'UTC',
|
||||
'{}'::jsonb
|
||||
)
|
||||
ON CONFLICT (source) DO NOTHING;
|
||||
|
||||
COMMENT ON TABLE scrape_schedules IS
|
||||
'In-app scheduler config (заменяет cron-script setup). '
|
||||
'Sources: avito_city_sweep, yandex_city_sweep (dormant, #561), '
|
||||
'cian_history_backfill, rosreestr_dkp_import, listing_source_snapshot (#570), '
|
||||
'asking_to_sold_ratio_refresh (#648).';
|
||||
|
||||
COMMIT;
|
||||
313
tradein-mvp/backend/tests/test_asking_to_sold_ratio.py
Normal file
313
tradein-mvp/backend/tests/test_asking_to_sold_ratio.py
Normal file
|
|
@ -0,0 +1,313 @@
|
|||
"""Tests for the daily asking→sold ratio refresh (#648 Stage 4).
|
||||
|
||||
recompute_asking_to_sold_ratios is SQL-heavy, so most assertions are static: we read the
|
||||
emitted SQL via .text and check the TRUE-MIRROR shape (DELETE WHERE district='' BEFORE the
|
||||
re-derivation INSERT), that the derivation reuses the exact 080 logic (deals + listings, the
|
||||
trailing-12mo window, the 30/30 threshold, the global -1 fallback row), and the psycopg-v3
|
||||
cast discipline (no :param::type). We also assert the scheduler wiring (trigger fn + dispatch
|
||||
branch) and the migration 082 contents.
|
||||
|
||||
Plus one cheap behavioural test: a fake db (monkeypatched .execute) drives the counter logic
|
||||
without a real Postgres.
|
||||
|
||||
Static style mirrors tests/test_listing_source_snapshot.py.
|
||||
"""
|
||||
|
||||
import inspect
|
||||
import os
|
||||
import re
|
||||
from pathlib import Path
|
||||
from typing import Any
|
||||
|
||||
import pytest
|
||||
|
||||
# Importing app.services.scheduler / app.tasks pulls app.core.config.Settings → needs
|
||||
# DATABASE_URL. Stub it BEFORE app imports (as in test_scheduler.py) — these tests are
|
||||
# static / fake-db; no live database is touched.
|
||||
os.environ.setdefault("DATABASE_URL", "postgresql+psycopg://test:test@localhost:5432/test")
|
||||
|
||||
from app.services import scheduler
|
||||
from app.tasks import asking_to_sold_ratio as ratio_mod
|
||||
|
||||
_SQL_DIR = Path(__file__).resolve().parents[1] / "data" / "sql"
|
||||
_MIGRATION_080 = _SQL_DIR / "080_asking_to_sold_ratios.sql"
|
||||
_MIGRATION_082 = _SQL_DIR / "082_scrape_schedules_seed_ratio_refresh.sql"
|
||||
|
||||
# Emitted SQL text (SQLAlchemy text() clause → .text gives the raw string).
|
||||
_DELETE_SQL = str(ratio_mod._DELETE_SQL.text)
|
||||
_REDERIVE_SQL = str(ratio_mod._REDERIVE_SQL.text)
|
||||
_COUNTERS_SQL = str(ratio_mod._COUNTERS_SQL.text)
|
||||
_ALL_SQL = _DELETE_SQL + "\n" + _REDERIVE_SQL + "\n" + _COUNTERS_SQL
|
||||
_TASK_SRC = inspect.getsource(ratio_mod.recompute_asking_to_sold_ratios)
|
||||
|
||||
|
||||
# ── TRUE-MIRROR: DELETE-then-INSERT ───────────────────────────────────────────
|
||||
|
||||
|
||||
def test_refresh_deletes_district_rows_first() -> None:
|
||||
"""True-mirror: DELETE FROM asking_to_sold_ratios WHERE district='' before the INSERT.
|
||||
|
||||
The 080 seed used ON CONFLICT DO UPDATE which leaves stale per-rooms rows for buckets
|
||||
that drop below 30/30 on a later run. The refresh must DELETE first instead.
|
||||
"""
|
||||
flat_del = re.sub(r"\s+", " ", _DELETE_SQL).strip()
|
||||
assert "DELETE FROM asking_to_sold_ratios" in flat_del
|
||||
assert "WHERE district = ''" in flat_del
|
||||
# The re-derivation is an INSERT (no ON CONFLICT — DELETE precedes it).
|
||||
assert "INSERT INTO asking_to_sold_ratios" in _REDERIVE_SQL
|
||||
assert "ON CONFLICT" not in _REDERIVE_SQL
|
||||
|
||||
|
||||
def test_task_body_runs_delete_before_insert_in_one_txn() -> None:
|
||||
"""Task executes DELETE then re-derive INSERT, commits ONCE (atomic refresh)."""
|
||||
body = _TASK_SRC
|
||||
del_pos = body.index("_DELETE_SQL")
|
||||
ins_pos = body.index("_REDERIVE_SQL")
|
||||
commit_pos = body.index("db.commit()")
|
||||
# DELETE executed before INSERT, both before the single commit (one transaction).
|
||||
assert del_pos < ins_pos < commit_pos
|
||||
# Exactly one commit — never an intermediate commit that could leave the table empty.
|
||||
assert body.count("db.commit()") == 1
|
||||
|
||||
|
||||
# ── Derivation matches 080 (refresh == re-seed) ───────────────────────────────
|
||||
|
||||
|
||||
def test_rederivation_references_deals_and_listings() -> None:
|
||||
assert "FROM deals" in _REDERIVE_SQL
|
||||
assert "FROM listings" in _REDERIVE_SQL
|
||||
assert "source = 'rosreestr'" in _REDERIVE_SQL
|
||||
assert "is_active" in _REDERIVE_SQL
|
||||
|
||||
|
||||
def test_rederivation_uses_12_month_window() -> None:
|
||||
"""Trailing-12mo deal window — same as the 080 seed."""
|
||||
assert "deal_date >= CURRENT_DATE - INTERVAL '12 months'" in _REDERIVE_SQL
|
||||
# window_months literal 12 also persisted into the rows.
|
||||
flat = re.sub(r"\s+", " ", _REDERIVE_SQL)
|
||||
assert "12 AS window_months" in flat
|
||||
|
||||
|
||||
def test_rederivation_applies_3030_threshold_and_ppm_band() -> None:
|
||||
assert "d.n_deals >= 30" in _REDERIVE_SQL
|
||||
assert "a.n_listings >= 30" in _REDERIVE_SQL
|
||||
assert "price_per_m2 BETWEEN 30000 AND 600000" in _REDERIVE_SQL
|
||||
assert "LEAST(GREATEST(rooms, 0), 4)" in _REDERIVE_SQL
|
||||
assert "percentile_cont(0.5)" in _REDERIVE_SQL
|
||||
|
||||
|
||||
def test_rederivation_writes_global_fallback_row() -> None:
|
||||
"""Global -1 fallback row (basis='global_fallback') always written when ask>0."""
|
||||
assert "-1 AS rooms_bucket" in _REDERIVE_SQL or (
|
||||
"-1" in _REDERIVE_SQL and "rooms_bucket" in _REDERIVE_SQL
|
||||
)
|
||||
assert "'global_fallback'" in _REDERIVE_SQL
|
||||
assert "'per_rooms'" in _REDERIVE_SQL
|
||||
assert "deal_global" in _REDERIVE_SQL
|
||||
assert "ask_global" in _REDERIVE_SQL
|
||||
|
||||
|
||||
def test_rederivation_cte_blocks_match_080() -> None:
|
||||
"""The CTE names are byte-for-byte the 080 derivation blocks."""
|
||||
for cte in ("deal_side", "ask_side", "per_bucket", "deal_global", "ask_global", "global_row"):
|
||||
assert f"{cte} AS" in _REDERIVE_SQL, f"missing CTE {cte!r}"
|
||||
|
||||
|
||||
def _strip_sql(s: str) -> str:
|
||||
"""Drop -- line comments and collapse whitespace — leaves only the executable SQL.
|
||||
|
||||
Comments aren't load-bearing; the derivation MUST match 080 in its executable form
|
||||
(the CTE expressions / filters), which is what 'refresh == re-seed' means.
|
||||
"""
|
||||
no_comments = re.sub(r"--[^\n]*", "", s)
|
||||
return re.sub(r"\s+", " ", no_comments).strip()
|
||||
|
||||
|
||||
def test_migration_080_derivation_is_subset_of_refresh_sql() -> None:
|
||||
"""Refresh derivation == 080 seed derivation (the WITH...SELECT before ON CONFLICT).
|
||||
|
||||
Strip -- comments + normalise whitespace, then confirm the 080 CTE body
|
||||
(deal_side … per_bucket UNION ALL) is present verbatim in the refresh SQL — so
|
||||
refresh has exact re-seed semantics on the EXECUTABLE derivation.
|
||||
"""
|
||||
seed_sql = _MIGRATION_080.read_text("utf-8")
|
||||
# Extract the WITH … (up to the ON CONFLICT) from the seed.
|
||||
with_idx = seed_sql.index("WITH")
|
||||
onconflict_idx = seed_sql.index("ON CONFLICT (rooms_bucket, district) DO UPDATE")
|
||||
seed_derivation = seed_sql[with_idx:onconflict_idx]
|
||||
|
||||
assert _strip_sql(seed_derivation) in _strip_sql(_REDERIVE_SQL)
|
||||
|
||||
|
||||
# ── Counters query ────────────────────────────────────────────────────────────
|
||||
|
||||
|
||||
def test_counters_query_returns_three_counters() -> None:
|
||||
assert "rows_written" in _COUNTERS_SQL
|
||||
assert "per_rooms_rows" in _COUNTERS_SQL
|
||||
assert "used_global_fallback" in _COUNTERS_SQL
|
||||
assert "FILTER (WHERE basis = 'per_rooms')" in _COUNTERS_SQL
|
||||
assert "FILTER (WHERE rooms_bucket = -1)" in _COUNTERS_SQL
|
||||
assert "FROM asking_to_sold_ratios" in _COUNTERS_SQL
|
||||
|
||||
|
||||
# ── psycopg v3 cast discipline ────────────────────────────────────────────────
|
||||
|
||||
|
||||
def test_sql_uses_no_double_colon_bind_casts() -> None:
|
||||
"""psycopg v3: never :param::type. Literal ::-casts on expressions are fine."""
|
||||
assert not re.search(r":\w+::", _ALL_SQL)
|
||||
|
||||
|
||||
# ── Task return / finalisation contract ───────────────────────────────────────
|
||||
|
||||
|
||||
def test_task_returns_counters_and_finalises_run() -> None:
|
||||
assert "mark_done" in _TASK_SRC
|
||||
assert "mark_failed" in _TASK_SRC
|
||||
assert "db.rollback()" in _TASK_SRC
|
||||
assert "raise" in _TASK_SRC # re-raise on failure — no silent swallow
|
||||
|
||||
|
||||
# ── Scheduler wiring ──────────────────────────────────────────────────────────
|
||||
|
||||
|
||||
def test_trigger_fn_exists_and_is_async() -> None:
|
||||
fn = getattr(scheduler, "trigger_asking_to_sold_ratio_run", None)
|
||||
assert fn is not None, "trigger_asking_to_sold_ratio_run missing from scheduler"
|
||||
assert inspect.iscoroutinefunction(fn)
|
||||
|
||||
|
||||
def test_dispatch_branch_wired() -> None:
|
||||
"""scheduler_loop dispatches source='asking_to_sold_ratio_refresh' to the trigger."""
|
||||
loop_src = inspect.getsource(scheduler.scheduler_loop)
|
||||
assert 'source == "asking_to_sold_ratio_refresh"' in loop_src
|
||||
assert "trigger_asking_to_sold_ratio_run(db, sch)" in loop_src
|
||||
|
||||
|
||||
def test_trigger_runs_sync_task_in_executor() -> None:
|
||||
"""Sync DB-only task → run_in_executor (mirror snapshot), not a bare await."""
|
||||
trig_src = inspect.getsource(scheduler.trigger_asking_to_sold_ratio_run)
|
||||
assert "run_in_executor(None, recompute_asking_to_sold_ratios" in trig_src
|
||||
assert "_claim_run(db, schedule_row)" in trig_src
|
||||
|
||||
|
||||
# ── Migration 082 ─────────────────────────────────────────────────────────────
|
||||
|
||||
|
||||
def test_migration_082_exists() -> None:
|
||||
assert _MIGRATION_082.is_file(), f"missing migration: {_MIGRATION_082}"
|
||||
|
||||
|
||||
def test_migration_082_seeds_schedule_enabled_true_window_6_7() -> None:
|
||||
sql = _MIGRATION_082.read_text("utf-8")
|
||||
assert "'asking_to_sold_ratio_refresh'" in sql
|
||||
assert "'{}'::jsonb" in sql
|
||||
assert "ON CONFLICT (source) DO NOTHING" in sql
|
||||
# enabled=true (SAFE — pure internal DB), window 6..7 UTC (after rosreestr 04:00-06:00).
|
||||
assert "true, -- SAFE" in sql
|
||||
insert_block = sql.split("INSERT INTO scrape_schedules")[1]
|
||||
assert "false" not in insert_block
|
||||
# window_start_hour=6, window_end_hour=7 — assert the two literals appear post-INSERT.
|
||||
flat = re.sub(r"[ \t]+", " ", insert_block)
|
||||
assert "\n 6,\n 7,\n" in flat or ("6," in flat and "7," in flat)
|
||||
# next_run_at = tomorrow + 06:00 UTC.
|
||||
assert "make_interval(hours => 6)" in sql
|
||||
assert "BEGIN;" in sql and "COMMIT;" in sql
|
||||
|
||||
|
||||
def test_migration_082_updates_table_comment() -> None:
|
||||
sql = _MIGRATION_082.read_text("utf-8")
|
||||
assert "COMMENT ON TABLE scrape_schedules" in sql
|
||||
assert "asking_to_sold_ratio_refresh (#648)" in sql
|
||||
|
||||
|
||||
def test_migration_082_uses_psycopg_safe_sql() -> None:
|
||||
"""Migration is plain DDL (no bind params), but guard against accidental :x::type."""
|
||||
sql = _MIGRATION_082.read_text("utf-8")
|
||||
assert not re.search(r":\w+::", sql)
|
||||
|
||||
|
||||
# ── Cheap behavioural test: counter logic via fake db ─────────────────────────
|
||||
|
||||
|
||||
class _FakeMappingResult:
|
||||
def __init__(self, row: dict[str, Any] | None) -> None:
|
||||
self._row = row
|
||||
|
||||
def mappings(self) -> "_FakeMappingResult":
|
||||
return self
|
||||
|
||||
def first(self) -> dict[str, Any] | None:
|
||||
return self._row
|
||||
|
||||
|
||||
class _FakeDB:
|
||||
"""Minimal stand-in for a SQLAlchemy Session — records execute() calls.
|
||||
|
||||
The third execute (counters query) returns the seeded counter row; the first two
|
||||
(DELETE, INSERT) return an empty result.
|
||||
"""
|
||||
|
||||
def __init__(self, counters_row: dict[str, Any]) -> None:
|
||||
self._counters_row = counters_row
|
||||
self.executed: list[Any] = []
|
||||
self.committed = False
|
||||
self.rolled_back = False
|
||||
|
||||
def execute(self, stmt: Any, params: dict[str, Any] | None = None) -> _FakeMappingResult:
|
||||
self.executed.append((stmt, params))
|
||||
# 3rd call is the counters SELECT.
|
||||
if len(self.executed) == 3:
|
||||
return _FakeMappingResult(self._counters_row)
|
||||
return _FakeMappingResult(None)
|
||||
|
||||
def commit(self) -> None:
|
||||
self.committed = True
|
||||
|
||||
def rollback(self) -> None:
|
||||
self.rolled_back = True
|
||||
|
||||
|
||||
def test_counter_logic_with_fake_db(monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""recompute_asking_to_sold_ratios maps the counters row into its return + marks done."""
|
||||
marked: dict[str, Any] = {}
|
||||
monkeypatch.setattr(
|
||||
ratio_mod.runs_mod,
|
||||
"mark_done",
|
||||
lambda _db, run_id, counters: marked.update(run_id=run_id, counters=dict(counters)),
|
||||
)
|
||||
monkeypatch.setattr(ratio_mod.runs_mod, "mark_failed", lambda *a, **k: None)
|
||||
|
||||
db = _FakeDB(
|
||||
counters_row={"rows_written": 4, "per_rooms_rows": 3, "used_global_fallback": 1}
|
||||
)
|
||||
out = ratio_mod.recompute_asking_to_sold_ratios(db, run_id=99) # type: ignore[arg-type]
|
||||
|
||||
assert out == {"rows_written": 4, "per_rooms_rows": 3, "used_global_fallback": 1}
|
||||
assert db.committed is True
|
||||
# Three statements: DELETE, re-derive INSERT, counters SELECT.
|
||||
assert len(db.executed) == 3
|
||||
assert marked["run_id"] == 99
|
||||
assert marked["counters"] == {"rows_written": 4, "per_rooms_rows": 3, "used_global_fallback": 1}
|
||||
|
||||
|
||||
def test_counter_logic_failure_path_marks_failed(monkeypatch: pytest.MonkeyPatch) -> None:
|
||||
"""On execute error: rollback + mark_failed + re-raise (no silent swallow)."""
|
||||
failed: dict[str, Any] = {}
|
||||
monkeypatch.setattr(ratio_mod.runs_mod, "mark_done", lambda *a, **k: None)
|
||||
monkeypatch.setattr(
|
||||
ratio_mod.runs_mod,
|
||||
"mark_failed",
|
||||
lambda _db, run_id, err, counters: failed.update(run_id=run_id, err=err),
|
||||
)
|
||||
|
||||
class _BoomDB(_FakeDB):
|
||||
def execute(self, stmt: Any, params: dict[str, Any] | None = None) -> _FakeMappingResult:
|
||||
raise RuntimeError("boom")
|
||||
|
||||
db = _BoomDB(counters_row={})
|
||||
with pytest.raises(RuntimeError, match="boom"):
|
||||
ratio_mod.recompute_asking_to_sold_ratios(db, run_id=7) # type: ignore[arg-type]
|
||||
assert db.rolled_back is True
|
||||
assert failed["run_id"] == 7
|
||||
Loading…
Add table
Reference in a new issue