bef8d95e64
- "backend/tests/conftest.py" - "backend/tests/test_ingest.py" - "backend/tests/fixtures/sample_transcript.json" - "backend/pytest.ini" - "backend/requirements.txt" - "backend/models.py" GSD-Task: S02/T02
93 lines
3 KiB
Python
93 lines
3 KiB
Python
"""Shared fixtures for Chrysopedia integration tests.
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Provides:
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- Async SQLAlchemy engine/session against a real PostgreSQL test database
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- httpx.AsyncClient wired to the FastAPI app with dependency overrides
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- Sample transcript fixture path and temporary storage directory
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Key design choice: function-scoped engine with NullPool avoids asyncpg
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"another operation in progress" errors caused by session-scoped connection
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reuse between the ASGI test client and verification queries.
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"""
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import os
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import pathlib
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import pytest
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import pytest_asyncio
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from httpx import ASGITransport, AsyncClient
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.pool import NullPool
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# Ensure backend/ is on sys.path so "from models import ..." works
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import sys
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sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent.parent))
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from database import Base, get_session # noqa: E402
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from main import app # noqa: E402
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TEST_DATABASE_URL = os.getenv(
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"TEST_DATABASE_URL",
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"postgresql+asyncpg://chrysopedia:changeme@localhost:5433/chrysopedia_test",
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)
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@pytest_asyncio.fixture()
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async def db_engine():
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"""Create a per-test async engine (NullPool) and create/drop all tables."""
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engine = create_async_engine(TEST_DATABASE_URL, echo=False, poolclass=NullPool)
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# Create all tables fresh for each test
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async with engine.begin() as conn:
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await conn.run_sync(Base.metadata.drop_all)
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await conn.run_sync(Base.metadata.create_all)
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yield engine
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# Drop all tables after test
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async with engine.begin() as conn:
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await conn.run_sync(Base.metadata.drop_all)
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await engine.dispose()
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@pytest_asyncio.fixture()
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async def client(db_engine, tmp_path):
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"""Async HTTP test client wired to FastAPI with dependency overrides."""
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session_factory = async_sessionmaker(
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db_engine, class_=AsyncSession, expire_on_commit=False
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)
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async def _override_get_session():
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async with session_factory() as session:
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yield session
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# Override DB session dependency
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app.dependency_overrides[get_session] = _override_get_session
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# Override transcript_storage_path via environment variable
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os.environ["TRANSCRIPT_STORAGE_PATH"] = str(tmp_path)
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# Clear the lru_cache so Settings picks up the new env var
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from config import get_settings
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get_settings.cache_clear()
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transport = ASGITransport(app=app)
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async with AsyncClient(transport=transport, base_url="http://testserver") as ac:
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yield ac
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# Teardown: clean overrides and restore settings cache
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app.dependency_overrides.clear()
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os.environ.pop("TRANSCRIPT_STORAGE_PATH", None)
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get_settings.cache_clear()
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@pytest.fixture()
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def sample_transcript_path() -> pathlib.Path:
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"""Path to the sample 5-segment transcript JSON fixture."""
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return pathlib.Path(__file__).parent / "fixtures" / "sample_transcript.json"
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@pytest.fixture()
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def tmp_transcript_dir(tmp_path) -> pathlib.Path:
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"""Temporary directory for transcript storage during tests."""
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return tmp_path
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