fa725f1a0e
Production code shouldn't branch on `"pytest" in sys.modules` — it's fragile and couples db.py to test tooling. Instead, conftest.py now builds its own dedicated NullPool engine directly from settings, used only for the drop_all/create_all reset and the get_db override. The production engine in app/db.py is untouched and never exercised during tests, so this fully preserves the event-loop fix while keeping prod code test-agnostic.
40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
import pytest_asyncio
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from httpx import ASGITransport, AsyncClient
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from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
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from sqlalchemy.pool import NullPool
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from app.config import settings
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from app.db import Base, get_db
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from app.main import app
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# pytest-asyncio gives each test function its own event loop by default;
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# asyncpg connections are bound to the loop they were opened on, so a pooled
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# connection from one test's loop breaks the next test. NullPool sidesteps
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# this by opening a fresh connection per checkout — scoped to this dedicated
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# test engine so app.db.engine (used by production) is unaffected.
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test_engine = create_async_engine(settings.database_url, poolclass=NullPool)
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TestSessionLocal = async_sessionmaker(test_engine, expire_on_commit=False)
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@pytest_asyncio.fixture(autouse=True)
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async def _reset_db():
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async with test_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
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async def _override_get_db():
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async with TestSessionLocal() as session:
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yield session
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app.dependency_overrides[get_db] = _override_get_db
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@pytest_asyncio.fixture
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async def client():
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transport = ASGITransport(app=app)
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async with AsyncClient(transport=transport, base_url="http://test") as ac:
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yield ac
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