{
  "mockBidRequest": {
    "id": "test-request-id",
    "imp": [
      {
        "id": "banner-imp-id",
        "banner": {
          "format": [
            {
              "w": 300,
              "h": 250
            }
          ]
        }
      }
    ],
    "ext": {}
  },
  "expectedMakeRequestsErrors": [
    {
      "value": "Bidder extension not provided or can't be unmarshalled",
      "comparison": "literal"
    }
  ]
}