{
  "mockBidRequest": {
    "id": "some-request-id",
    "site": {
      "page": "http://www.example.com",
      "domain": "www.example.com"
    },
    "device": {
      "ip": "123.123.123.123"
    },
    "imp": [
      {
        "id": "some-impression-id",
        "banner": {
          "w": 300,
          "h": 250,
          "format": [
            {
              "w": 300,
              "h": 250
            },
            {
              "w": 300,
              "h": 600
            }
          ]
        },
        "ext": ""
      }
    ],
    "test": 1,
    "tmax": 500
  },
  "expectedMakeRequestsErrors": [
    {
      "value": "imp.ext not provided or cannot be unmarshalled",
      "comparison": "literal"
    }
  ]
}