import pytest
from unittest.mock import patch, MagicMock
from sut.backend.utils import database

# Example test for a database utility function using AAA and mocking

def test_get_connection_returns_connection():
    # Arrange
    with patch('sut.backend.utils.database.create_engine') as mock_create_engine:
        mock_engine = MagicMock()
        mock_create_engine.return_value = mock_engine
        # Act
        conn = database.get_connection()
        # Assert
        assert conn == mock_engine