[
  {
    "expectedOutput": [
      "System libpq not found",
      "Successfully connected to PostgreSQL!",
      "Test query result: 1 + 1 = 2",
      "Connection closed successfully"
    ],
    "envs": {
      "DATABASE_URL": "postgresql://test_user:test_password@postgres:5432/test_db"
    }
  }
]