test(ml,backend): couvre ML vers DB, puis la chaine complete jusqu'a l'API
Le pipeline ML n'avait aucun test touchant PostgreSQL : `ml/README.md` le disait, faute de base joignable en CI. Le marqueur `integration` de `ml/pyproject.toml` etait declare et porte par zero test. - `ml/tests/conftest.py` : deux fixtures d'acces a la base, jamais interchangeables. `connexion_ml` annule sa transaction, `parc` valide ses ecritures parce que `run_scoring` ouvre sa propre connexion et ne verrait rien d'autre. Garde sur le nom de base, marque uuid sur chaque site, nettoyage dans l'ordre des cles etrangeres. - `test_data_integration.py` : les neuf colonnes du contrat confrontees au schema Alembic reel, la borne `since`, l'ordre de tri dont dependent des lags positionnels, et le typage des colonnes entierement nulles. - `test_score_integration.py` : les contraintes de `prediction` vues depuis le code qui ecrit, l'empilement volontaire de deux runs, et `run_scoring` de bout en bout sur un booster reel. - `apps/backend/tests/test_chaine_ml_api.py` : lance les vrais binaires `enervision_ml.train` et `.score` en sous-processus, comme les DAGs, puis relit par `GET /api/v1/predictions`. Marqueur `chaine` distinct : le job `integration` du backend n'a pas l'environnement de ml/. - `ml.yml` : job `integration`, seul du depot a reunir les deux environnements uv et une base. Ses `paths` incluent les migrations du backend, sans quoi le schema deriverait du SQL du pipeline sans que rien ne casse. - Makefile : `migrate-test`, qui manquait (`enervision_test` n'a jamais recu de table), `ml-test-integration` et `test-chaine`.
This commit is contained in:
Johan LEROY
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from datetime import datetime, timedelta
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from pathlib import Path
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from typing import Any
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import pytest
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from sqlalchemy import Connection, Row, text
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from sqlalchemy.exc import IntegrityError
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from enervision_ml.score import (
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INSUFFICIENT_DATA_REASON,
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LOOKBACK,
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MAX_STALENESS,
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ScoredSite,
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model_reference,
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run_scoring,
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write_predictions,
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)
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from tests.conftest import ANCRAGE, Parc, insere_site
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pytestmark = pytest.mark.integration
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REFERENCE = "lightgbm-000000000000"
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_SELECT = text(
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"""
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SELECT target_at, target_metric, period_minutes, predicted_value,
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model_reference, status, failure_reason
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FROM prediction
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WHERE site_id = :site_id
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ORDER BY prediction_id
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"""
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)
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def lignes(connexion: Connection, site_id: str) -> list[Row[Any]]:
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return list(connexion.execute(_SELECT, {"site_id": site_id}))
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def disponible(
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site_id: str,
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*,
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target_at: datetime = ANCRAGE,
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predicted_value: float | None = 12.5,
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) -> ScoredSite:
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return ScoredSite(
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site_id=site_id,
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target_at=target_at,
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status="available",
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predicted_value=predicted_value,
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failure_reason=None,
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)
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def test_write_predictions_inserts_one_row_per_scored_site(connexion_ml: Connection) -> None:
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premier = insere_site(connexion_ml)
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second = insere_site(connexion_ml)
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write_predictions(connexion_ml, [disponible(premier), disponible(second)], reference=REFERENCE)
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assert len(lignes(connexion_ml, premier)) == 1
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assert len(lignes(connexion_ml, second)) == 1
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def test_write_predictions_stores_the_model_reference_and_the_hourly_period(
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connexion_ml: Connection,
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) -> None:
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site_id = insere_site(connexion_ml)
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write_predictions(connexion_ml, [disponible(site_id)], reference=REFERENCE)
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ligne = lignes(connexion_ml, site_id)[0]
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assert ligne.model_reference == REFERENCE
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assert ligne.target_metric == "consumption_kwh"
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assert ligne.period_minutes == 60
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def test_write_predictions_stacks_a_second_run_instead_of_overwriting_the_first(
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connexion_ml: Connection,
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) -> None:
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site_id = insere_site(connexion_ml)
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write_predictions(
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connexion_ml, [disponible(site_id, predicted_value=10.0)], reference=REFERENCE
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)
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write_predictions(
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connexion_ml, [disponible(site_id, predicted_value=20.0)], reference=REFERENCE
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)
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assert [ligne.predicted_value for ligne in lignes(connexion_ml, site_id)] == [10.0, 20.0]
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def test_write_predictions_writes_nothing_when_no_site_was_scored(
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connexion_ml: Connection,
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) -> None:
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site_id = insere_site(connexion_ml)
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write_predictions(connexion_ml, [], reference=REFERENCE)
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assert lignes(connexion_ml, site_id) == []
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def test_write_predictions_rejects_an_available_row_without_a_predicted_value(
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connexion_ml: Connection,
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) -> None:
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site_id = insere_site(connexion_ml)
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with pytest.raises(IntegrityError, match="ck_prediction_status"):
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write_predictions(
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connexion_ml, [disponible(site_id, predicted_value=None)], reference=REFERENCE
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)
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def test_write_predictions_rejects_an_insufficient_data_row_carrying_a_value(
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connexion_ml: Connection,
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) -> None:
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site_id = insere_site(connexion_ml)
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incoherent = ScoredSite(
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site_id=site_id,
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target_at=ANCRAGE,
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status="insufficient_data",
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predicted_value=12.5,
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failure_reason=INSUFFICIENT_DATA_REASON,
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)
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with pytest.raises(IntegrityError, match="ck_prediction_status"):
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write_predictions(connexion_ml, [incoherent], reference=REFERENCE)
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def test_write_predictions_rejects_a_prediction_for_an_unknown_site(
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connexion_ml: Connection,
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) -> None:
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with pytest.raises(IntegrityError, match="fk_prediction_site"):
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write_predictions(connexion_ml, [disponible("SITE-INCONNU")], reference=REFERENCE)
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def test_run_scoring_writes_an_available_prediction_for_a_site_with_a_full_week(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE)
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ligne = parc.predictions_ecrites(site_id)[0]
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assert ligne.status == "available"
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assert ligne.predicted_value is not None
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assert ligne.target_at == ANCRAGE + timedelta(hours=1)
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def test_run_scoring_writes_insufficient_data_when_the_weekly_lag_is_missing(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=100, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE)
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ligne = parc.predictions_ecrites(site_id)[0]
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assert ligne.status == "insufficient_data"
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assert ligne.predicted_value is None
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assert ligne.failure_reason == INSUFFICIENT_DATA_REASON
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def test_run_scoring_writes_a_staleness_reason_when_the_last_reading_is_too_old(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE + MAX_STALENESS + timedelta(hours=1))
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ligne = parc.predictions_ecrites(site_id)[0]
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assert ligne.status == "insufficient_data"
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assert ligne.failure_reason != INSUFFICIENT_DATA_REASON
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def test_run_scoring_writes_nothing_when_every_reading_is_older_than_the_window(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE + LOOKBACK + timedelta(days=1))
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assert parc.predictions_ecrites(site_id) == []
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def test_run_scoring_only_writes_the_site_that_was_requested(
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parc: Parc, modele_jetable: Path
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) -> None:
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demande = parc.site()
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ignore = parc.site()
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parc.lectures(demande, heures=200, fin=ANCRAGE)
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parc.lectures(ignore, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, site_id=demande, now=ANCRAGE)
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assert len(parc.predictions_ecrites(demande)) == 1
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assert parc.predictions_ecrites(ignore) == []
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def test_run_scoring_uses_the_model_file_hash_as_model_reference(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE)
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ligne = parc.predictions_ecrites(site_id)[0]
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assert ligne.model_reference == model_reference(modele_jetable)
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def test_run_scoring_appends_a_second_row_when_it_runs_twice(
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parc: Parc, modele_jetable: Path
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) -> None:
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site_id = parc.site()
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parc.lectures(site_id, heures=200, fin=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE)
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run_scoring(model_path=modele_jetable, now=ANCRAGE)
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ecrites = parc.predictions_ecrites(site_id)
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assert len(ecrites) == 2
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assert ecrites[0].target_at == ecrites[1].target_at
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