Files
FabledCurator/tests/conftest.py
T

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Python

"""Shared pytest fixtures.
The async db fixture provides an AsyncSession bound to a transaction that
gets rolled back after each test. CI provisions a real Postgres + pgvector
(see .forgejo/workflows/ci.yml), so tests exercise the actual schema and
migration code paths.
"""
import os
import pytest
import pytest_asyncio
from sqlalchemy import create_engine
from sqlalchemy.ext.asyncio import (
AsyncSession,
async_sessionmaker,
create_async_engine,
)
from sqlalchemy.orm import sessionmaker
from backend.app.models import Base
def _async_database_url() -> str:
user = os.environ.get("DB_USER", "fabledcurator")
password = os.environ["DB_PASSWORD"]
host = os.environ.get("DB_HOST", "postgres")
port = os.environ.get("DB_PORT", "5432")
name = os.environ.get("DB_NAME", "fabledcurator_test")
return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{name}"
def _sync_database_url() -> str:
user = os.environ.get("DB_USER", "fabledcurator")
password = os.environ["DB_PASSWORD"]
host = os.environ.get("DB_HOST", "postgres")
port = os.environ.get("DB_PORT", "5432")
name = os.environ.get("DB_NAME", "fabledcurator_test")
return f"postgresql+psycopg://{user}:{password}@{host}:{port}/{name}"
@pytest_asyncio.fixture
async def engine():
e = create_async_engine(_async_database_url(), future=True)
yield e
await e.dispose()
@pytest_asyncio.fixture
async def db(engine) -> AsyncSession:
Session = async_sessionmaker(engine, expire_on_commit=False)
async with Session() as session:
await session.begin()
try:
yield session
finally:
await session.rollback()
@pytest.fixture
def sync_engine():
e = create_engine(_sync_database_url(), future=True)
yield e
e.dispose()
@pytest.fixture
def db_sync(sync_engine):
"""Synchronous Session bound to a savepoint — used by Importer tests
(the Importer is sync-only by design)."""
SyncSession = sessionmaker(sync_engine, expire_on_commit=False)
with SyncSession() as session:
session.begin()
try:
yield session
finally:
session.rollback()
@pytest.fixture(autouse=True)
def _truncate_after_integration(request):
"""Integration tests exercise app/celery code that commits on its own
connection, which the rollback fixtures above can't undo — so data
would leak between tests. Truncate every model table after each
integration-marked test. Scoped to the integration marker so the
DB-less fast unit job never connects here.
"""
yield
if request.node.get_closest_marker("integration") is None:
return
tables = ", ".join(t.name for t in Base.metadata.sorted_tables)
if not tables:
return
eng = create_engine(_sync_database_url(), future=True)
try:
with eng.begin() as conn:
conn.exec_driver_sql(
f"TRUNCATE {tables} RESTART IDENTITY CASCADE"
)
finally:
eng.dispose()