{
  "mockBidRequest": {
    "id": "missing-widgetid-400",
    "imp": [
      {
        "id": "1",
        "banner": { "format": [{ "w": 300, "h": 250 }] },
        "ext": { "bidder": {} }
      }
    ],
    "site": { "page": "http://example.com", "ref": "http://example.com" },
    "device": { "ua": "ua", "h": 100, "w": 200 }
  },
  "httpCalls": [
    {
      "expectedRequest": {
        "method": "POST",
        "uri": "http://example.com/hb",
        "body": {
          "id": "missing-widgetid-400",
          "imp": [
            {
              "id": "1",
              "banner": { "format": [{ "w": 300, "h": 250 }] },
              "ext": { "bidder": {} }
            }
          ],
          "site": {
            "page": "http://example.com",
            "ref": "http://example.com"
          },
          "device": { "ua": "ua", "h": 100, "w": 200 },
          "ext": {
            "nativery": {
              "isAmp": false,
              "widgetId": ""
            }
          }
        },
        "impIDs": ["1"]
      },
      "mockResponse": {
        "status": 400,
        "body": ""
      }
    }
  ],
  "expectedRequestCount": 1,
  "expectedMakeRequestsErrors": [],
  "expectedMakeBidsErrors": [
    {
      "value": "Unexpected status code: 400",
      "comparison": "startswith"
    }
  ],
  "expectedBidResponses": []
}