import pytest
from unittest.mock import MagicMock, patch
from fastapi.testclient import TestClient


@pytest.fixture
def mock_db():
    db = MagicMock()
    db.query.return_value = MagicMock(result_rows=[])
    return db


@pytest.fixture
def client(mock_db):
    with patch("backend.database.db", mock_db):
        from backend.main import app
        with TestClient(app) as c:
            yield c, mock_db