{
  "context": "Tests whether the response correctly refactors a callback-based function to async/await with proper error handling.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Function is async",
      "description": "The refactored function uses the async keyword",
      "max_score": 12
    },
    {
      "name": "Uses await on db.query",
      "description": "Awaits the database query call instead of using a callback",
      "max_score": 12
    },
    {
      "name": "Preserves not-found check",
      "description": "Still throws or rejects when no rows are returned (the empty result case)",
      "max_score": 12
    },
    {
      "name": "Returns the user row",
      "description": "Returns rows[0] or equivalent single user result",
      "max_score": 10
    },
    {
      "name": "Error propagation via throw or rejection",
      "description": "Database errors propagate naturally via async/await (thrown or uncaught) rather than being swallowed",
      "max_score": 10
    },
    {
      "name": "No callback parameter in signature",
      "description": "The refactored function removes the callback parameter from the function signature",
      "max_score": 8
    }
  ]
}