{
  "description": "Request comes with a banner that defines no 'h' value",
  "mockBidRequest": {
    "id":"req-id",
    "site": {
      "id": "some-site"
    },
    "imp": [
      {
        "id":"imp-id",
        "banner":{
          "w": 50
        },
        "ext": {
          "appnexus": {
            "placementId": 12883451
          }
        }
      }
    ]
  },
  "expectedReturnCode": 400,
  "expectedErrorMessage": "Invalid request: request.imp[0].banner has no sizes. Define \"w\" and \"h\", or include \"format\" elements.\n"
}