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rf4-spotter/apps/api/tests/test_importer.py
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Python

from __future__ import annotations
from pathlib import Path
import pytest
from sqlalchemy import create_engine, func, select
from sqlalchemy.orm import Session
from app.database import Base
from app.importer import FetchResult, ImportSourceError, import_records, parse_html
from app.models import CatchReport, ImportStatus, OfficialRecordImport, SourceType
FIXTURE = Path(__file__).parents[3] / "tests" / "fixtures" / "records_ru_sample.html"
WEEKLY_FIXTURE = Path(__file__).parents[3] / "tests" / "fixtures" / "weekly_records_sample.html"
def test_parser_and_import_are_idempotent() -> None:
html = FIXTURE.read_text(encoding="utf-8")
parsed = parse_html(html, region="RU", category="records")
assert len(parsed) == 2
assert parsed[1].weight_g == 2_519_264
engine = create_engine("sqlite://")
Base.metadata.create_all(engine)
with Session(engine) as db:
first = import_records(db, url="fixture://records", region="RU", category="records", html=html)
second = import_records(db, url="fixture://records", region="RU", category="records", html=html)
assert (first.rows_created, first.rows_updated) == (2, 0)
assert (second.rows_created, second.rows_updated) == (0, 2)
assert db.scalar(select(func.count()).select_from(CatchReport).where(CatchReport.source_type == SourceType.official_record)) == 2
assert db.scalar(select(func.count()).select_from(OfficialRecordImport)) == 2
def test_manual_weekly_category_import_uses_its_own_identity() -> None:
html = WEEKLY_FIXTURE.read_text(encoding="utf-8")
engine = create_engine("sqlite://")
Base.metadata.create_all(engine)
with Session(engine) as db:
run = import_records(
db, url="fixture://weekly-records", region="RU",
category="weekly-ultralight", html=html,
)
report = db.scalar(select(CatchReport).where(CatchReport.source_type == SourceType.official_record))
assert (run.rows_seen, run.rows_created, run.rows_updated) == (1, 1, 0)
assert report.weight_g == 8_023
assert report.raw_payload["category"] == "weekly-ultralight"
assert report.raw_payload["fish"] == "Wochenfisch"
def test_failed_import_preserves_previous_records_and_is_logged() -> None:
html = FIXTURE.read_text(encoding="utf-8")
engine = create_engine("sqlite://")
Base.metadata.create_all(engine)
with Session(engine) as db:
import_records(db, url="fixture://records", region="RU", category="records", html=html)
before = db.scalar(select(func.count()).select_from(CatchReport))
with pytest.raises(ImportSourceError, match="records table not found"):
import_records(db, url="fixture://broken", region="RU", category="records", html="<html></html>")
assert db.scalar(select(func.count()).select_from(CatchReport)) == before
failed = db.scalar(select(OfficialRecordImport).where(OfficialRecordImport.status == ImportStatus.failed))
assert failed is not None
assert failed.source_url == "fixture://broken"
assert "records table not found" in (failed.error_summary or "")
def test_import_rejects_changed_column_contract() -> None:
html = FIXTURE.read_text(encoding="utf-8").replace(
'class="col data"', 'class="col changed"', 1
)
with pytest.raises(ImportSourceError, match="records columns changed"):
parse_html(html, region="RU", category="records")
def test_import_reuses_http_validators_and_handles_not_modified(monkeypatch) -> None:
html = FIXTURE.read_text(encoding="utf-8")
parsed = parse_html(html, region="RU", category="records")
calls: list[tuple[str | None, str | None]] = []
def fake_fetch(url: str, *, region: str, category: str, etag: str | None, last_modified: str | None) -> FetchResult:
calls.append((etag, last_modified))
if len(calls) == 1:
return FetchResult(parsed, 200, '"fixture-v1"', "Wed, 02 Sep 2026 00:00:00 GMT", "text/html", len(html))
return FetchResult(None, 304, None, None, None, 0)
monkeypatch.setattr("app.importer.fetch_records", fake_fetch)
engine = create_engine("sqlite://")
Base.metadata.create_all(engine)
with Session(engine) as db:
first = import_records(db, url="https://example.test/records", region="RU", category="records")
second = import_records(db, url="https://example.test/records", region="RU", category="records")
assert calls == [(None, None), ('"fixture-v1"', "Wed, 02 Sep 2026 00:00:00 GMT")]
assert first.response_status == 200
assert second.response_status == 304
assert second.not_modified is True
assert second.response_etag == '"fixture-v1"'
assert second.rows_seen == 0