backend/tests/conftest.py

import os
import sys

# Insert the backend directory into sys.path so tests can import from backend/
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))

import pytest
from fastapi.testclient import TestClient
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from main import app
from infra.database import Base, get_db

# Use an in-memory SQLite database for testing
SQLALCHEMY_DATABASE_URL = "sqlite:///:memory:"

engine = create_engine(
    SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
)
TestingSessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)


@pytest.fixture(scope="session", autouse=True)
def setup_db():
    Base.metadata.create_all(bind=engine)
    yield
    Base.metadata.drop_all(bind=engine)


def override_get_db():
    try:
        db = TestingSessionLocal()
        yield db
    finally:
        db.close()


app.dependency_overrides[get_db] = override_get_db


@pytest.fixture(scope="module")
def client():
    with TestClient(app) as c:
        yield c