{
  "mockBidRequest": {
    "id": "0000000000001",
    "imp": [
      {
        "id": "malconfigured-adunit",
        "banner": {
          "format": [{"w": 300,"h": 250}]
        },
        "ext": {
          "bidder": {
            "pubId": "string instead of int"
          }
        }
      }
    ]
  },

  "expectedMakeRequestsErrors": [
    {
      "value": "cannot unmarshal openrtb_ext.ExtImpAdkernelAdn.PublisherID: unexpected character",
      "comparison": "startswith"
    }
  ]
}