"""Test fixtures: fresh temp-file SQLite DB per test session (spec §8.4)."""

import os
import tempfile

import pytest

# Must be set before any app module is imported (engine binds at import time)
_tmpdir = tempfile.mkdtemp(prefix="calcount-test-")
os.environ["CALCOUNT_DATABASE_URL"] = f"sqlite:///{_tmpdir}/test.db"

from fastapi.testclient import TestClient  # noqa: E402

from database import run_migrations  # noqa: E402
from main import app  # noqa: E402


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